IMF Loan

[Source]

IMF Loan is the fourth upgrade of Path 2 for the Banana Farm in Bloons TD 6. In addition to a bigger bank capacity of $10,000 ($12,500 with the Bigger Banks MK), the IMF Loan has an activated ability where, upon activation, the player is loaned $9,000 ($10,000 with Backroom Deals), at the cost of accruing debt. When in debt, 50% of the player's earnings go into paying it off gradually (cost of 40% earnings with Backroom Deals). IMF Loan abilities can still be activated while the player is in debt, but each subsequent IMF Loan ability usage gives only $4,500 usable credit ($6,000 with Backroom Deals) and $4,500 additional debt ($6,000 with Backroom Deals), as 50% (40%) of each subsequent loan goes toward paying off previous loans, and therefore has no effect.

The activated ability has a cooldown time of 85 seconds, and additionally cannot be used until the loan is entirely paid off. Like all income-only abilities, IMF Loan can only be used a limited number of times per round and the ability is unusable after 3 minutes since the start of a round. The ability can only be used up to two times per round per IMF Loan, unless sold and rebought.

IMF Loan's ability is not affected by any income-increasing buffs such as Monkey City.

This upgrade costs $6,120 on Easy, $7,200 on Medium, $7,775 on Hard, and $8,640 on Impoppable.

Description

Overview

IMF Loan is a large blue-grey office building with yellow windows and a small entrance flanked by grey stone pillars, with steps leading up to the actual doorway. On the roof is a banana logo attached to a semicircular extension, as well as a small metal chimney.

Top Path crosspathing adds grey/gold stones around the foundation. Bottom Path crosspathing adds wooden, then cyan crates with a banana logo at the front of the building.

The IMF Loan offers greater capability to handle money, from a larger bank account, to the capability to loan a sum of cash at the drawback of debt, and the capability to deposit money (available only via Bank Deposits).

Activated Abilities

See also: Activated Abilities (BTD6)#IMF Loan

Upon activation of the IMF Loan ability, the player will receive $9,000 but at the cost of $9,000 debt. The ability will recharge after 85 seconds, but can only be activated again if all of that IMF Loan Bank's debt is paid off. Both the loan and the debt will increase to $10,000 with the Backroom Deals MK.

How the "debt" works is that 50% of all income gained (40% of all income gain with Backroom Deals) from all sources will be used to pay off the debt. The amount of income used to pay off the debt is paid off onto the first IMF Loan that owes money and then onto any other subsequent in-debt IMF Loans after paying off the first IMF Loan. The in-debt penalty will remain until all of the debt is paid off from all IMF Banks. The amount of debt is displayed to the right of the cash counter on the top of the screen. The amount of debt of a certain IMF Loan Bank is shown in the respective IMF Loan Bank. Note that the player can still sell an IMF Loan Bank while any of the loans are in debt (including itself), but the loan debt will remain until fully paid off. Fortunately, it is impossible to lose as a result of not paying off IMF Loan debts because bankruptcy is not a lose condition.

Unlike normal loans, the player cannot manually pay off the debt of a certain IMF Loan Bank. However the total debt can be paid off quickly by repeatedly depositing and withdrawing from any bank using Bank Deposits.

The ability cannot be used if the player still has debt from the same IMF Loan Bank.

Much like all money-only abilities, the ability can only be used a limited times per round, up to twice per round for each IMF Loan. Starting from Version 28.0, it cannot be activated after 3 minutes after the start of a round, and after Version 39.0 cannot recharge cooldowns during penalty timers in competitive events like Ranked Boss Bloon Events and CT Bosses.

Targeting Priorities

IMF Loan, which stores money in its bank account similarly to its preceding upgrade Monkey Bank, does not have a real targeting priority. Instead, it has different buttons that alter its behavior.

IMF Loan comes with two "targeting priorities" by default: Collect, and Collect All. "Collect" withdraws all money from the current IMF Loan, while "Collect All" withdraws all money from all Banks (including IMF Loans) on screen. If the Bank Deposits MK is enabled, IMF Loan also receives the Deposit button, which deposits money into the IMF Loan's bank account.

Costs

Updated as of Version 46.0. Listed prices exclude external buffs, any sacrifices, and Monkey Knowledge.

This upgrade's prices (or included crosspath's prices) are affected by the following MK: Flat Pack Buildings, Farm Subsidy, Better Sell Deals

Strategy

Summary

IMF Loan offers a tricky ability to master, as though its ability explicitly about gaining money in a large burst, it effectively cancels out the profit with the penalty of a loan which halves the gains of all revenue sources (including other IMF Loan abilities) by paying itself off, leading to an ability with zero sum profit if the player does not reinvest the cash.

Once the loan is used, income gain is reduced by 40% with Backroom Deals, 50% without the MK point. This same point also raises the cash gained per loan from $9,000 to $10,000, making the IMF Loan more productive overall. Another important part of IMF Loan are Bank Deposits via Monkey Knowledge. It allows manual depositing of cash into the IMF Loan, which gains interest after holding the bank deposit for at least 2 rounds. In turn, proper bank deposits maximizes the IMF Loan's income, with constant micromanagement.

Note that using multiple loans at once will grant $9,000/$10,000 from the first ability, but each subsequent loan will be affected by other loan's debt, granting $4,500 ($6,000 with Backroom Deals) and will only increase the total loan by $4,500 ($6,000 with Backroom Deals) rather than $9,000/10,000, assuming it must pay off maximum debt. This value can be higher if debt is below this. Only one loan can be paid off at a time, and any large singular sum, primarily selling towers, that exceeds this debt will directly go to the player without paying off additional loans at a 50%/40% rate. This gives more value to very expensive towers when selling.

The IMF Loan provides the player with a powerful utility: instant income for instant purchasing power or reinvestment into more IMF Loans. This has several practical uses for Ranked Boss Bloon Events. On Least Tiers or Least Cash Bosses, the IMF Loan's ability can be used when needing quick cash to afford defenses against the boss, or more quickly afford other income generators like Support Chinook, Special Poperations, or Monkey-Nomics. Additionally, the IMF Loan's deposit ability makes it an efficient income generator by itself, without needing any crosspaths.

For Timed Bosses, the IMF Loan has two main strategies. The first is by combining an IMF Loan with the Monkeyopolis, called 'IMFopolis'. This can create more income than by simply using a Bank's profit to create a Miniopolis right away, and is a common early game farming method used with Benjamin. See Monkeyopolis for details on the IMFopolis strategy.

The second is IMF Loan farming, which features multiple IMF Loans used to quickly generate massive amounts of cash to enable certain strategies for Tier 1 Bosses. This strategy is rarely used, as it has the notable downside of massive amounts of debt, which can result in slower times for later tiers of bosses. It is also notoriously difficult to pull off, as rounds must be stalled without getting penalty to enable the loan abilities to come off of cooldown, and as such is usually only seen on Top 3 runs. It is occasionally used on certain Timed Boss weeks, most commonly on Vortex, where the extra income for Tier 1 can allow for much more expensive towers like Ray of Doom to be used. Note that this method of farming is much more common and powerful for Multiplayer Timed Bosses, as the separate income of each player allows for the debt of the loans to be effectively ignored. See Income Farming for more details on this strategy.

Efficiency

The following are tables regarding the income production rate of the normal Monkey Bank function of the IMF Loan upgrade. In general, it has a higher bank capacity but a similar income production rate to Monkey Bank. As such, its bank functionality does not become more efficient than Monkey Bank until its own bank balance surpasses the Monkey Bank's maximum bank capacity.

Income earning per round (35.0-Present)

Version 35.0 secretly changed the total amount of income per round the income packets generate, in addition to accepting all external buffs that increase income (mainly Monkey City).

Instead of $230/$270/$310 per round, the Bank now produces $225/$274/$325 per round, ignoring the added interest applied afterwards. Also, More Valuable Bananas now increases income generation of each cash packet.

Also assumes that the Bigger Banks MK is active.

IMF Loan + More Valuable Bananas

Round number	0/4/x	1/4/0	2/4/0	0/4/x + Benjamin Lvl 5	1/4/0 + Benjamin Lvl 5	2/4/0 + Benjamin Lvl 5	0/4/x + Benjamin Lvl 9	1/4/0 + Benjamin Lvl 9	2/4/0 + Benjamin Lvl 9
1	$269	$328	$388	$279	$341	$403	$293	$359	$424
2	$578	$707	$835	$530	$677	$817	$558	$712	$859
3	$934	$1142	$1349	$959	$1177	$1394	$1009	$1238	$1466
4	$1550	$1894	$1940	$1383	$1695	$2006	$1455	$1783	$2110
5	$1814	$2217	$2620	$1800	$2234	$2661	$1893	$2350	$2799
6	$2355	$2879	$3402	$2349	$2911	$3463	$2471	$3062	$3643
7	$2978	$3639	$4301	$3051	$3746	$4437	$3209	$3940	$4667
8	$3693	$4514	$5335	$3788	$4650	$5509	$3985	$4891	$5792
9	$4517	$5520	$6524	$4636	$5689	$6736	$4877	$5984	$7085
10	$5463	$6677	$7892	$5611	$6884	$8150	$5902	$7241	$8573
11	$6552	$8008	$9464	$6732	$8258	$9776	$7082	$8686	$10,283
12	$7804	$9538	$11,272	$8022	$9838	$11,647	$8438	$10,348	$12,251
13	$9244	$11,298	$12,500	$9505	$11,655	$12,500	$9997	$12,260	$12,500
14	$10,899	$12,500		$11,210	$12,500		$11,791	$12,500
15	$12,500			$12,500			$12,500
Profit Per Round (1 round Early)	$778.5	$869	$939	$801	$896.5	$971	$842	$943	$1021
Profit Per Round (Capped)	$833	$893	$961.5	$833	$893	$962	$833	$893	$961.5

And with City buff, with the post-v36.0 Monkey City that raises cash gain by +20% instead of +15%:

IMF Loan + Monkey City +20% Income + More Valuable Bananas

Round number	0/4/x	1/4/0	2/4/0	0/4/x + Benjamin Lvl 5	1/4/0 + Benjamin Lvl 5	2/4/0 + Benjamin Lvl 5	0/4/x + Benjamin Lvl 9	1/4/0 + Benjamin Lvl 9	2/4/0 + Benjamin Lvl 9
1	$310	$379	$448	$320	$392	$463	$335	$409	$484
2	$667	$815	$964	$609	$777	$938	$637	$812	$980
3	$1078	$1317	$1557	$1102	$1351	$1600	$1151	$1412	$1672
4	$1343	$1642	$1940	$1588	$1946	$2304	$1660	$2034	$2408
5	$2093	$2558	$3023	$2067	$2565	$3055	$2160	$2681	$3193
6	$2718	$3322	$3926	$2698	$3342	$3977	$2819	$3493	$4156
7	$3436	$4199	$4963	$3503	$4301	$5095	$3662	$4495	$5325
8	$4262	$5209	$6156	$4350	$5339	$6322	$4546	$5580	$6608
9	$5212	$6370	$7528	$5323	$6532	$7734	$5564	$6827	$8083
10	$6304	$7705	$9106	$6443	$7903	$9358	$6734	$8260	$9780
11	$7560	$9240	$10920	$7730	$9481	$11,225	$8079	$9909	$11,732
12	$9005	$11006	$12,500	$9210	$11,296	$12,500	$9626	$11,806	$12,500
13	$10,666	$12,500		$10,913	$12,500		$11,406	$12,500
14	$12,500			$12,500			$12,500
Profit Per Round (1 round Early)	$762	$847	$910	$839.5	$941	$1020.5	$877	$984	$1066.5
Profit Per Round (Capped)	$893	$961.5	$1042	$893	$961.5	$1042	$893	$961.5	$1042

Bank Deposits MK (35.0-Present)

Adding Bank Deposits will almost always increase profit per round. However, after some testing and calculating, the most efficient strategy has made itself apparent, To save space in the table, assume that all farms have the 2-4-0 upgrade.

The money is shown as the amount in the bank at the end of the round (after interest has been applied) and as if all deposits happened during the first round.

Calculations about the average profit per round for each scenario have been made. It is concluded it is more efficient to withdraw 1 round before the bank reaches its maximum capacity. Otherwise, the last interest payment is reduced due to the account balance hitting its cap of $12,500. The profit per round can be calculated by subtracting the amount deposited from the amount of money in the bank, then dividing by the number of rounds before withdrawing.

Legacy Info:

Income earning per round (12.0-34.3)

As of Version 12.0, bank income bonus has decreased from +$160 to +$150 by default, including for IMF Loan. Therefore, instead of at least $240 per round, this income gain is decreased to at least $230 per round.

Note: The table assumes that the IMF Loan has been initially upgraded before the round starts and that the income is given as when after the round.

Also assume that no manual deposits from the Bank Deposits MK are done.

Round while full cash stored	0/4/x	1/4/0	2/4/0	0/4/x + Benjamin Lvl 5	1/4/0 + Benjamin Lvl 5	2/4/0 + Benjamin Lvl 5	0/4/x + Benjamin Lvl 9	1/4/0 + Benjamin Lvl 9	2/4/0 + Benjamin Lvl 9
1	$265	$311	$357	$278	$326	$374	$296	$348	$399
2	$569	$668	$766	$597	$701	$805	$637	$748	$858
3	$918	$1078	$1238	$964	$1132	$1300	$1029	$1208	$1387
4	$1321	$1550	$1780	$1387	$1628	$1869	$1479	$1736	$1994
5	$1783	$2094	$2404	$1873	$2198	$2524	$1997	$2345	$2692
6	$2315	$2718	$3121	$2431	$2854	$3277	$2593	$3044	$3495
7	$2927	$3436	$3945	$3074	$3608	$4143	$3278	$3849	$4419
8	$3631	$4262	$4894	$3812	$4475	$5138	$4066	$4774	$5481
9	$4440	$5212	$5984	$4662	$5473	$6289	$4973	$5837	$6702
10	$5370	$6304	$7238	$5639	$6620	$7600	$6015	$7061	$8107
11	$6440	$7560	$8681	$6762	$7938	$9115	$7213	$8468	$9722
12	$7671	$9005	$10339	$8054	$9455	$10856	$8591	$10086	$11580
13	$9086	$10666	$12246	$9540	$11200	$12500	$10176	$11946	$12500
14	$10714	$12500	$12500	$11249	$12500		$11999	$12500
15	$12500			$12500			$12500

As of Version 17.0, the buff to Monkey City allowed nearby income-producers, such as IMF Loans, to gain +10% more income per round. This applies for the income bonus, and it stacks on top of the current interest rate (in addition to interest buffs from Benjamin, if applicable).

Round while full cash stored (plus 0/0/4 Village)	0/4/x	1/4/0	2/4/0	0/4/x + Benjamin Lvl 5	1/4/0 + Benjamin Lvl 5	2/4/0 + Benjamin Lvl 5	0/4/x + Benjamin Lvl 9	1/4/0 + Benjamin Lvl 9	2/4/0 + Benjamin Lvl 9
1	$291	$342	$392	$305	$359	$412	$326	$383	$440
2	$626	$734	$843	$657	$771	$885	$701	$823	$945
3	$1010	$1186	$3558	$1061	$1245	$1430	$1132	$1329	$1526
4	$1453	$1705	$1958	$1525	$1791	$2056	$1628	$1911	$2194
5	$1962	$2303	$2644	$2060	$2418	$2776	$2198	$3350	$3846
6	$2547	$2990	$3433	$2674	$3139	$3604	$2854	$3350	$3846
7	$3220	$3780	$4340	$3381	$3969	$4557	$3608	$4235	$4862
8	$3994	$4688	$5383	$4194	$4923	$5652	$4475	$5253	$6031
9	$4884	$5733	$6583	$5128	$6020	$6912	$5472	$6423	$7375
10	$5907	$6935	$7962	$6203	$7281	$8360	$6619	$7769	$8920
11	$7084	$8316	$9549	$7439	$8732	$10026	$7938	$9317	$10697
12	$8438	$9906	$11373	$8860	$10401	$11942	$9455	$11097	$12500
13	$9995	$11733	$12500	$10494	$12320	$12500	$11199	$12500
14	$11785	$12500		$12374	$12500		$12500
15	$12500			$12500

Bank Deposits MK (19.0 onwards)

Adding Bank Deposits will almost always increase profit per round. However, after some testing and calculating, the most efficient strategy has made itself apparent, To save space in the table, assume that all farms have the 2-4-0 upgrade.

The money is shown as the amount in the bank at the end of the round (after interest has been applied) and as if all deposits happened during the first round.

Calculations about the average profit per round for each scenario have been made. It is concluded it is more efficient to withdraw 1 round before the bank reaches its maximum capacity. Otherwise, the last interest payment is reduced due to the account balance hitting its cap of $12,500. The profit per round can be calculated by subtracting the amount deposited from the amount of money in the bank, then dividing by the number of rounds before withdrawing.

Example math: 2-3-0 bank after depositing 4750. withdrawing at the end of round 4.
9004-4750 = 4254,
4254 / 4 rounds = 1,063.5, rounded to ~1,064 per round

2-4-0 Bank	Deposit 6250	Deposit 6250 + Benjamin Lvl 5	Deposit 6250 + Benjamin Lvl 9	Deposit 9375	Deposit 9375+ Benjamin Lvl 5	Deposit 9375 + Benjamin Lvl 9
1	$6,607	$6,624	$6,649	$9,732	$9,749	$9,774
2	$7,954	$7,992	$8,046	$11,548	$11,586	$11,640
3	$9,504	$9,565	$9,652	$12,500	$12,500	$12,500
4	$11,286	$11,375	$11,499
5	$12,500	$12,500	$12,500
Profit Per Round (1 round Early)	$1,259	~$1,281	~$1312	~$1,086	~$1,106	~$1,132
Profit Per Round (Capped)	$1,250	$1,250	$1,250	~$1,042	~$1,042	~$1,042

Income earning per round (11.0-11.2)

As of Version 11.0, bank income bonus for Level 9+ Benjamin is increased to +12% instead of +8%. Note: The table assumes that the Monkey Bank has been initially upgraded before the round starts and that the income is given as when after the round. Round while full cash stored 0/3/x 1/3/0 2/3/0 0/3/x + Benjamin Lvl 5 1/3/0 + Benjamin Lvl 5 2/3/0 + Benjamin Lvl 5 0/3/x + Benjamin Lvl 9 1/3/0 + Benjamin Lvl 9 2/3/0 + Benjamin Lvl 9 1 276 322 368 290 338 386 309 361 412 2 593 692 791 623 671 831 665 775 886 3 958 1118 1278 1006 1109 1342 1073 1252 1431 4 1309 1608 1838 1447 1614 1929 1544 1801 2058 5 1782 2171 2481 1954 2198 2605 2084 2432 2779 6 2325 2819 3221 2537 2861 3382 2706 3157 3608 7 2953 3564 4027 3207 3628 4276 3421 3991 4561 8 3589 4420 4999 3978 4511 5256 4243 4950 5658 9 4403 5405 6116 4865 5525 6382 5189 6054 6918 10 5339 6538 7402 5884 6692 7726 6276 7332 8368 11 6347 7840 8834 7058 8034 9271 7450 8721 TBA 12 7506 9339 TBA 8391 TBA TBA 8953 TBA TBA 13 8908 TBA TBA TBA TBA TBA TBA TBA TBA 14 TBA TBA TBA TBA TBA TBA TBA TBA TBA 15 TBA TBA TBA TBA TBA TBA TBA TBA TBA 16 TBA TBA TBA TBA TBA TBA TBA TBA TBA

Income earning per round (pre-11.0)

The following is information regarding income earning per round for the IMF Loan before it received a buff when combined with Benjamin. On Version 7.0 and later, there was a Monkey Bank nerf that did not affect IMF Loans or Monkey-Nomics. Note: The table assumes that the IMF Loan has been initially upgraded before the round starts and that the income is given as when after the round. Note 2: In BTD6 v3.x, the Monkey Bank (implied for the IMF Loan; originally tested by Monkey Bank) does not appear to consistently calculate interest correctly for the 0-3-x and 1-3-0 banks. The following results are the maximum of three tests Round while full cash stored 0/4/x 1/4/0 2/4/0 0/4/x + Benjamin Lvl 5 1/4/0 + Benjamin Lvl 5 2/4/0 + Benjamin Lvl 5 0/4/x + Benjamin Lvl 8 1/4/0 + Benjamin Lvl 8 2/4/0 + Benjamin Lvl 8 1 276 322 368 290 338 386 298 348 397 2 593 692 791 623 671 831 641 748 854 3 958 1118 1278 1006 1109 1342 1035 1150 1380 4 1309 1608 1838 1447 1614 1929 1488 1670 1985 5 1782 2171 2481 1954 2198 2605 2010 2268 2680 6 2325 2819 3221 2537 2861 3382 2609 2956 3429 7 2953 3564 4027 3207 3628 4276 3224 3747 4341 8 3589 4420 4999 3978 4511 5256 4006 4657 5390 9 4403 5405 6116 4865 5525 6382 4830 5703 6569 10 5339 6538 7402 5884 6692 7726 5853 6907 7983 11 6347 7840 8834 7058 8034 9271 7029 8290 9577 12 7506 9339 10481 8391 9561 11000 8382 9882 11412 13 8908 11008 12421 9867 11354 12500 9937 11654 12500 14 10520 12500 12500 11564 12500 11651 12500 15 12374 12500 12500 16 12500

Mathematics

Python code is written below as a demonstration of a rough model of a Monkey Bank simulation. Currently, this code does not take into account the presence of Benjamin's Bank buffs (multiply the total deposit per round by 1.05 or 1.12 for Level 5-8 and Level 9+, respectively).

Variables:

• account: The bank balance of the current bank account. Code below declares it as $0 (0).
• deposit: The total deposit per round into the current bank account. Code below declares it as $230 (230).
• interestrate: The interest rate of the current bank account. Code below declares it as +15% per round (1.15).
• capacity: The maximum bank capacity of the current bank account. Code below declares it as $10,000 (10000).
• i: The iterator that loops the number of "rounds" for the Bank to run. Please change the hardcoded maximum i value to whatever number of rounds you wish.

Python Code for Monkey Bank mathematics

class Bank: def __init__(self, account, capacity): self.account = account self.capacity = capacity def bankrun(self, deposit, interestrate): self.account += deposit if (self.account >= self.capacity): print("bank is full") else: print("Bank balance after deposits: %s" % self.account) self.account *= interestrate if (self.account >= self.capacity): print("bank is full") else: print("Bank balance after interest: %s" % self.account) return self.account bank = Bank(0, 10000) print(bank.account) print(bank.capacity) deposit = 230 interestrate = 1.15 print("Deposit: %s" % deposit) print("Interest rate: %s" % interestrate) for i in range(0, 15): print("Iteration %s" % (i + 1)) bank.bankrun(deposit, interestrate)

Additional Tips

• The best crosspath choice for the basic Bank functionality is usually 2-4-0 for the maximum income gain, but for IMF Loan the 0-4-2 may be better if trying to utilize the higher sellback and reducing inconvenience of Bank Deposits micro.
• IMF Loan's ability takes a long time to go from initial cooldown. In the 30's rounds, it may take up to about 3 rounds in order for the ability to become ready without getting penalties in Ranked Boss.
• Try to use strategies for Bank Deposits to maximize usage of manual deposits (see Bank Deposits#Strategy for further context).

Achievements

-$400k	Student Loans FIRST RELEASED: Version 29.0
	Description: 4 x 10^5 (Go into $400,000 of debt)
	Rewards: x3

Version History

Balance Changes

IMF Loan was formerly one of the least effective income-production towers in the game, not only because the loan's income gain was less than the cost of the upgrade itself, but because it initially did not have any other perks. Subsequently, it has evolved to become a stronger version of the Monkey Bank, more specifically because it kept the Monkey Bank's old bank capacity since Version 7.0, and its upgrade price was slashed to an acceptable level on an even earlier update. It also kept the benefit of Bank Deposits, later becoming popularized in Boss Events because of the income potential of that MK Point.

IMF Loan would become more popular among Ranked Boss players after Version 32.0 nerfed the Monkeyopolis to no longer be worth going for early, and is a dominant staple of Ranked Boss events that would be significantly curbed with nerfs to the IMF Loan Ability in Version 35.0. After v35.0, the IMF Loan is only used when farming with it can afford important towers which are unaffordable otherwise, such as a Ray of Doom or Plasma Monkey Fan Club, or during low ability cooldown weeks. Version 40.0 and 42.0 slightly buffed its value, giving it use for the IMFopolis strategy.

4.0

• Cost of IMF Loan is cheaper ($12,000 → $7,500)

7.0

• Indirect buff, because IMF Loan's capacity was kept at $10,000 but Monkey Bank's capacity was lowered to $7,000.

8.0

• IMF Loan ability (along with other income-based abilities) now undergo the full initial cooldown before initial ability usage.

12.0

• IMF Loan bonus cash produced per round reduced from $160 to $150 (from $240 per round to $230).

14.0

• Bug: If the IMF Loan's debt has been paid off, the Banana Farm that triggered it cannot use its ability until the next round starts. The same applies to Monkey-Nomics.

14.2

• Bug fix; the ability no longer requires the next round to start upon paying off the IMF Loan (again, also applies to Monkey-Nomics).

18.0

• Added Monkey Knowledge Point "Bank Deposits": this MK allows the player to deposit money into the Monkey Bank, earning interest over time.

19.0

• Deposits do not gain income until 1 round after being deposited.
• [undocumented] Monkey Bank with EZ Collect (or Banana Salvage) will now glow upon detecting full once it adds another pocket of cash, rather than only just after the round it becomes full.

27.0

“	Given the relatively low value and use case of upgrading Banks further to IMF Loan, the overall incredible power of the Bank Deposits MK on Banks, and the fact that Banks are majorly considered to be the most powerful farm; we have decided to limit this incredibly powerful Knowledge point [sic] until the IMF Loan to both reign it in and give a little more back to that lacking T4 upgrade.	”
	~ Ninja Kiwi

• Indirect buff, since Bank Deposits no longer work for Monkey Bank but still function for IMF Loan and above.

28.0

“	Banana Farm's xx2 upgrade is the inferior crosspath, so we've amped up the utility with the lazy aspect so that if it's going to be inferior for production, it's at least going to be extra lazy & less far behind. [...]	”
	~ Ninja Kiwi, referring to Banana Salvage

• 0-4-2 crosspath affected by various 0-3-2 Bank buffs

32.2

• [bug fix] Resolved an issue where selling an IMF Loan at the same time and taking a loan would not immediately try to pay back the loan with that tower’s sellback

35.0

“	For sake of consistency we want Monkey Bank to increase in cash generation when used with sources that externally buff generation so everything works as expected, however along with this buff the current power of IMF loan on this path already feels too strong so we are lowering that power for IMF Loan in exchange.	”
	~ Ninja Kiwi

• IMF Loan's ordinary cash generation will now increase in cash generation with external buffs. Note that this still doesn't affect its ability.
• IMF Loan monetary grant per ability reduced from $10,000 to $9,000
• IMF Loan monetary grant per ability with Backroom Deals Monkey Knowledge reduced from $12,000 to $10,000
• Resolved a bug that caused Collecting All from multiple x-3-x Banks or higher to only target repayment back towards a single active IMF Loan
  • This is a nerf because it means that Collecting All cannot have multiple banks bypass Debt after 35.0, as before 35.0, they did not all need to pay debt when the debt of one is payed off.
  • This also applies to selling an IMF loan with bank deposits.

40.0

“	The current power of xx5 Village combined with previous nerfs to Middle Farm have it currently feeling underappreciated for farm profits, some slight price adjustment.	”
	~ Ninja Kiwi

• IMF Loan cost reduced ($7500 → $7200)
  • Overall price decrease is $450, due to Monkey Bank costing $150 less.

42.0

“	Players have made it clear that for Boss Events the current cooldown on IMF Loan regularly puts it into a position where timing is frustratingly tight in order to maximize profits when farming with banks, so we’ve agreed to loosen up on this cooldown to help with this issue.	”
	~ Ninja Kiwi

• IMF Loan cooldown reduced from 90s to 85s

Bug Fixes and General Changes

This section is incomplete. You can help by expanding it.

35.0

• Upgrade name "IMF loan" has been corrected to "IMF Loan"

Extra Notes (Version History)

Sounds

When the Bank's balance is collected until Version 14.0 and since Version 42.0:

• [Cash collecting]

When the Bank's balance is collected since Version 31.0 until Version 42.0:

• [cash shake]

When activating IMF Loan Ability:

• [Cash collecting]

Gallery

Not enough images! There are not enough images on this page to sufficiently complete this page or section. You can help by uploading some images related to the article's subject(s). In particular, this article needs: Better image displaying just the loan debt thing.

Crosspathing (Top: Path 1, Bottom: Path 3)

Using two IMF Loan Abilities at once (when Backroom Deals active). Note second IMF Loan's debt

After about $500 income earn, $300 goes into cash and $200 goes into paying off. $250 debt paid off from Backroom Deals.

Selling off an IMF Loan with bank interest (note the centered income gain)

IMF Loan in the upgrade menu without capital letter on "Loan" (pre-35.0)

Disabled IMF Loan ability icon, after using the same ability twice per round

IMF Loan's loan activated and paying off (pre-35.0)

IMF Loan's loan activated and paying off with Backroom Deals (pre-35.0)

Official artwork

Upgrade portrait

Upgrade icon

Instamonkey icon

Videos

Trivia

• According to internal text, IMF stands for "International Monkey Fund". In real life, IMF is an abbreviation for International Monetary Fund, a financial agency that loans money to countries with troubled economies.
• While the IMF Loan's loan mimicks many attributes of a loan, more specifically an automatic payment of an interest-free loan, it doesn't work the same as a loan from a real-world bank for the following reasons:
  • IMF Loan's loan never has income penalties for not paying back debt promptly. In addition, real-life loans typically have a maximum loan debt allowance, which otherwise would lead to financial consequences such as bankruptcy.
  • One can basically not pay back an IMF Loan for however amount of rounds as the player wishes without losing from forced bankruptcy.
  • Assuming the IMF Loans are run by the same company, paying off a loan with an existing loan from the same company would be not practical, since that would be counterintuitive to a bank.
• There was a known bug related to IMF Loan in Co-Op where towers can disappear when the server refreshes the map to sync the game if there is an IMF Loan present on the map. This seems to be patched around version 12.0.

v • d • e Banana Farm BTD4 Upgrades More Bananas (BTD4) · Banana Plantation (BTD4) · Banana Republic (BTD4) · Banana Research Facility (BTD4) Other Healthy Bananas BTD5 era Upgrades Path 1 More Bananas (BTD5) · Banana Plantation (BTD5) · Banana Republic (BTD5) · Banana Research Facility (BTD5) Path 2 Long Life Bananas (BTD5) · Valuable Bananas (BTD5) · Monkey Bank (BTD5) · Banana Investments Advisory Specialty Buildings None BMC Buildings Banana Farm (BMC) · Micro Agriculture Development Building (BMC Flash) · Banana Farm Lab (BMC Mobile) · Banana Research HQ Other Healthy Bananas · Monkey Farmer · Monkey Farmer Pro BTD6 era Tower Banana Farm (BTD6 · BTDB2) Upgrades Path 1 Increased Production (BTD6 · BTDB2) · Greater Production (BTD6 · BTDB2) · Banana Plantation (BTD6 · BTDB2) · Banana Research Facility (BTD6 · BTDB2) · Banana Central (BTD6 · BTDB2) Path 2 Long Life Bananas (BTD6 · BTDB2) · Valuable Bananas (BTD6 · BTDB2) · Monkey Bank (BTD6 · BTDB2) · IMF Loan (BTD6 · BTDB2) · Monkey-Nomics (BTD6 · BTDB2) Path 3 EZ Collect BTD6 / Quality SoilBTDB2 · Banana Salvage (BTD6 · BTDB2) · Marketplace (BTD6 · BTDB2) · Central Market (BTD6 · BTDB2) · Monkey Wall Street (BTD6 · BTDB2) Former EZ CollectBTDB2 Monkey Knowledge Flat Pack Buildings · More Valuable Bananas · Bigger Banks · Farm Subsidy · Backroom Deals · Healthy Bananas · Bank Deposits Other Monkey Farmer Strategies BTD6 Strategies BTDB2 Strategies (General Strategy · Optimization Strategy · Countermeasures Strategy) Related Crosspathing (BTD6) · Damage Types (BTD6) · Tower Strength and Weakness

v • d • e Upgrades in Bloons TD 6   Dart Monkey Path 1 Sharp Shots · Razor Sharp Shots · Spike-o-pult · Juggernaut · Ultra-Juggernaut Path 2 Quick Shots · Very Quick Shots · Triple Shot · Super Monkey Fan Club · Plasma Monkey Fan Club Path 3 Long Range Darts · Enhanced Eyesight · Crossbow · Sharp Shooter · Crossbow Master Paragon Apex Plasma Master   Boomerang Monkey Path 1 Improved Rangs · Glaives · Glaive Ricochet · M.O.A.R. Glaives · Glaive Lord Path 2 Faster Throwing · Faster Rangs · Bionic Boomerang · Turbo Charge · Perma Charge Path 3 Long Range Rangs · Red Hot Rangs · Kylie Boomerang · MOAB Press · MOAB Domination Paragon Glaive Dominus   Bomb Shooter Path 1 Bigger Bombs · Heavy Bombs · Really Big Bombs · Bloon Impact · Bloon Crush Path 2 Faster Reload · Missile Launcher · MOAB Mauler · MOAB Assassin · MOAB Eliminator Path 3 Extra Range · Frag Bombs · Cluster Bombs · Recursive Cluster · Bomb Blitz   Tack Shooter Path 1 Faster Shooting · Even Faster Shooting · Hot Shots · Ring of Fire · Inferno Ring Path 2 Long Range Tacks · Super Range Tacks · Blade Shooter · Blade Maelstrom · Super Maelstrom Path 3 More Tacks · Even More Tacks · Tack Sprayer · Overdrive · The Tack Zone Paragon Crucible of Steel and Flame   Ice Monkey Path 1 Permafrost · Cold Snap · Ice Shards · Embrittlement · Super Brittle Path 2 Enhanced Freeze · Deep Freeze · Arctic Wind · Snowstorm · Absolute Zero Path 3 Larger Radius · Re-Freeze · Cryo Cannon · Icicles · Icicle Impale   Glue Gunner Path 1 Glue Soak · Corrosive Glue · Bloon Dissolver · Bloon Liquefier · The Bloon Solver Path 2 Bigger Globs · Glue Splatter · Glue Hose · Glue Strike · Glue Storm Path 3 Stickier Glue · Stronger Glue · MOAB Glue · Relentless Glue · Super Glue   Sniper Monkey Path 1 Full Metal Jacket · Large Calibre · Deadly Precision · Maim MOAB · Cripple MOAB Path 2 Night Vision Goggles · Shrapnel Shot · Bouncing Bullet · Supply Drop · Elite Sniper Path 3 Fast Firing · Even Faster Firing · Semi-Automatic · Full Auto Rifle · Elite Defender   Monkey Sub Path 1 Longer Range · Advanced Intel · Submerge and Support · Bloontonium Reactor · Energizer Path 2 Barbed Darts · Heat-tipped Darts · Ballistic Missile · First Strike Capability · Pre-Emptive Strike Path 3 Twin Guns · Airburst Darts · Triple Guns · Armor Piercing Darts · Sub Commander Paragon Nautic Siege Core   Monkey Buccaneer Path 1 Faster Shooting · Double Shot · Destroyer · Aircraft Carrier · Carrier Flagship Path 2 Grape Shot · Hot Shot · Cannon Ship · Monkey Pirates · Pirate Lord Path 3 Long Range · Crow's Nest · Merchantman · Favored Trades · Trade Empire Paragon Navarch of the Seas   Monkey Ace Path 1 Rapid Fire · Lots More Darts · Fighter Plane · Operation: Dart Storm · Sky Shredder Path 2 Exploding Pineapple · Spy Plane · Bomber Ace · Ground Zero · Tsar Bomba Path 3 Sharper Darts · Centered Path · Neva-Miss Targeting · Spectre · Flying Fortress Paragon Goliath Doomship   Heli Pilot Path 1 Quad Darts · Pursuit · Razor Rotors · Apache Dartship · Apache Prime Path 2 Bigger Jets · IFR · Downdraft · Support Chinook · Special Poperations Path 3 Faster Darts · Faster Firing · MOAB Shove · Comanche Defense · Comanche Commander   Mortar Monkey Path 1 Bigger Blast · Bloon Buster · Shell Shock · The Big One · The Biggest One Path 2 Faster Reload · Rapid Reload · Heavy Shells · Artillery Battery · Pop and Awe Path 3 Increased Accuracy · Burny Stuff · Signal Flare · Shattering Shells · Blooncineration   Dartling Gunner Path 1 Focused Firing · Laser Shock · Laser Cannon · Plasma Accelerator · Ray of Doom Path 2 Advanced Targeting · Faster Barrel Spin · Hydra Rocket Pods · Rocket Storm · M.A.D Path 3 Faster Swivel · Powerful Darts · Buckshot · Bloon Area Denial System · Bloon Exclusion Zone   Wizard Monkey Path 1 Guided Magic · Arcane Blast · Arcane Mastery · Arcane Spike · Archmage Path 2 Fireball · Wall of Fire · Dragon's Breath · Summon Phoenix · Wizard Lord Phoenix Path 3 Intense Magic · Monkey Sense · Shimmer · Necromancer: Unpopped Army · Prince of Darkness Paragon Magus Perfectus Former Soulbind   Super Monkey Path 1 Laser Blasts · Plasma Blasts · Sun Avatar · Sun Temple · True Sun God Path 2 Super Range · Epic Range · Robo Monkey · Tech Terror · The Anti-Bloon Path 3 Knockback · Ultravision · Dark Knight · Dark Champion · Legend of the Night Special Vengeful True Sun God   Ninja Monkey Path 1 Ninja Discipline · Sharp Shurikens · Double Shot · Bloonjitsu · Grandmaster Ninja Path 2 Distraction · Counter-Espionage · Shinobi Tactics · Bloon Sabotage · Grand Saboteur Path 3 Seeking Shuriken · Caltrops · Flash Bomb · Sticky Bomb · Master Bomber Paragon Ascended Shadow   Alchemist Path 1 Larger Potions · Acidic Mixture Dip · Berserker Brew · Stronger Stimulant · Permanent Brew Path 2 Stronger Acid · Perishing Potions · Unstable Concoction · Transforming Tonic · Total Transformation Path 3 Faster Throwing · Acid Pool · Lead to Gold · Rubber to Gold · Bloon Master Alchemist   Druid Path 1 Hard Thorns · Heart of Thunder · Druid of the Storm · Ball Lightning · Superstorm Path 2 Thorn Swarm · Heart of Oak · Druid of the Jungle · Jungle's Bounty · Spirit of the Forest Path 3 Druidic Reach · Heart of Vengeance · Druid of Wrath · Poplust · Avatar of Wrath   Mermonkey Path 1 Trident Efficiency · Trident Swiftness · Abyss Dweller · Abyssal Warrior · Lord of the Abyss Path 2 Sharper Prongs · Tidal Chill · Riptide Champion · Arctic Knight · Popseidon Path 3 Echosense Precision · Echosense Network · Alluring Melody · Symphonic Resonance · The Final Harmonic   Banana Farm Path 1 Increased Production · Greater Production · Banana Plantation · Banana Research Facility · Banana Central Path 2 Long Life Bananas · Valuable Bananas · Monkey Bank · IMF Loan · Monkey-Nomics Path 3 EZ Collect · Banana Salvage · Marketplace · Central Market · Monkey Wall Street   Spike Factory Path 1 Bigger Stacks · White Hot Spikes · Spiked Balls · Spiked Mines · Super Mines Path 2 Faster Production · Even Faster Production · MOAB SHREDR · Spike Storm · Carpet of Spikes Path 3 Long Reach · Smart Spikes · Long Life Spikes · Deadly Spikes · Perma-Spike Paragon Mega Massive Munitions Factory   Monkey Village Path 1 Bigger Radius · Jungle Drums · Primary Training · Primary Mentoring · Primary Expertise Path 2 Grow Blocker · Radar Scanner · Monkey Intelligence Bureau · Call To Arms · Homeland Defense Path 3 Monkey Business · Monkey Commerce · Monkey Town · Monkey City · Monkeyopolis   Engineer Monkey Path 1 Sentry Gun · Faster Engineering · Sprockets · Sentry Expert · Sentry Champion Path 2 Larger Service Area · Deconstruction · Cleansing Foam · Overclock · Ultraboost Path 3 Oversize Nails · Pin · Double Gun · Bloon Trap · XXXL Trap Paragon Master Builder   Beast Handler Path 1 Piranha · Barracuda · Great White · Orca · Megalodon Path 2 Microraptor · Adasaurus · Velociraptor · Tyrannosaurus Rex · Giganotosaurus Path 3 Gyrfalcon · Horned Owl · Golden Eagle · Giant Condor · Pouākai

v • d • e Special Abilities / Activated Abilities Towers BTD5/ BTDB/ BMC All Versions Super Monkey Fan Club · Blade Maelstrom Ability · Supply Drop · Turbo Charge · Sabotage Supply Lines · MOAB Assassin · Absolute Zero · Glue Striker · MOAB Takedown Ability · Ground Zero · Bloon Annihilation · Summon Phoenix · Call to Arms · Pop and Awe · Rocket Storm · Spike Storm · Added in Deluxe Overclock · Supa-Vac Added in BTD5M Support Chinook Abilites · First Strike Capability Added in BTDBM Misdirection BTD6 Tier 4 Path 2 Abilities Super Monkey Fan Club · Turbo Charge · MOAB Assassin · Blade Maelstrom Ability · Snowstorm · Glue Strike · Supply Drop · First Strike · MOAB Takedown · Ground Zero · Support Chinook Abilities (Supply Crate · Pickup Tower) · Bombardment · Rocket Storm · Summon Phoenix · Annihilation · Bloon Sabotage · Transforming Tonic · Jungle's Bounty · IMF Loan · Spike Storm · Call to Arms · Overclock · Tyrannosaurus Stomp Tier 5 Path 2 Abilities Plasma Monkey Fan Club · Perma Charge · MOAB Eliminator · Super Maelstrom · Absolute Zero · Elite Supply Drop Ability · Pre-Emptive Strike · Pirate Lord · Tsar Bomba · Special Poperations Abilities (Marine · Supply Crate · Pickup Tower) · Pop and Awe Ability · M.A.D Rocket Storm · Wizard Lord Phoenix · Mega Annihilation Ability · Grand Bloon Sabotage · Total Transformation · Spirit of the Forest Jungle's Bounty · Monkey-Nomics · Carpet of Spikes Ability · Homeland Defense · Ultraboost · Giganotosaurus Stomp Paragon Abilities Navarch Hook · Mega Sentry Deploy · Carpet Bomb · First Phoenix Explosion · Arcane Metamorphosis MK Abilities Door Gunner · Vine Rupture · Emergency Unlock Other Soulbind · Darkshift · Skilled Darkshift · Geraldo's Shop Heroes Quincy Rapid Shot · Arrow Storm · Cyber Shot · Cyber Storm Gwendolin Cocktail of Fire · Firestorm · Chemical Cocktail · Science Storm Striker Jones Concussive Shell · Target Focus · Artillery Command · Concussive Fire · Artillery Fire Obyn Greenfoot Brambles · Wall of Trees · Living Coral · Unleash the Krakens Captain Churchill Armor Piercing Shells · MOAB Barrage · High Energy Shells · High Energy Barrage Benjamin Biohack · Syphon Funding · Good Vibes · Beat Down Ezili Heartstopper · Sacrifical Totem · MOAB Hex · Screech · Scratch Post · Go Smudge GO! Pat Fusty Rallying Roar · Big Squeeze · Chilling Cheer · Crushing Ice Adora Long Arm of Light · Blood Sacrifice · Ball of Light · Sharp Sting of Fate · Eye of Misfortune · Chains of Fate Admiral Brickell Naval Tactics · Blast Chain · Mega Mine Etienne Drone Swarm · UCAV Sauda Leaping Sword · Sword Charge Psi Psychic Blast · Psionic Scream Corvus Spellbook · Soul Harvest · Spirit Walk · Dark Ritual Agent Jericho Sieze Assets · Bloon Decoy · Stand and Deliver · Misdirection · In it for the Money · Smuggler's Run Agents BTD5 only Swarm Ability · Orbital Strike · Sea Monster Deluxe Abominable Ability Specialties BTD5 only Shadow Double Ability Mobile Bombing Range · Temple of the Vengeful Monkey Other Missions Summon Super Phoenix Missions (BMC) Whirlpool · Sticky Sap Plant · Rainstorm · Anti-Camo Dust · Cuddly Bear