BankIA / Tools / Loan simulator

Free tool

Loan simulator with installment schedule.

Calculate the fixed monthly installment, total interest and amortization schedule of a loan, with the same calculation engine used by the BankIA platforms. Compare your rate with the current usury rate (legal interest cap) in Colombia.

Calculate your loan

E.g.: 20,000,000
From 1 to 120
E.g.: 24
Monthly loan installment
$760,761
Fixed installment (French system)
Total interest
$7,387,404
36.9% of the amount
Total to pay
$27,387,404
36 installments
Monthly effective rate
1.8088 %
Equivalent to 24.00% E.A.

Your rate is below the current usury rate (28.59 % E.A., modalidad CONSUMER AND ORDINARY).

Fuente: Financial Superintendency of Colombia · datos.gov.co.

Amortization schedule

Amortization schedule
InstallmentPayment dateAmountPrincipalInterestBalance
1November 17, 2026$760,761$399,010$361,752$19,600,990
2December 16, 2026$760,761$406,227$354,535$19,194,764
3January 18, 2027$760,761$413,574$347,187$18,781,189
4February 16, 2027$760,761$421,055$339,706$18,360,134
5March 16, 2027$760,761$428,671$332,090$17,931,464
6April 16, 2027$760,761$436,424$324,337$17,495,039
7May 17, 2027$760,761$444,318$316,443$17,050,721
8June 16, 2027$760,761$452,355$308,406$16,598,366
9July 16, 2027$760,761$460,537$300,224$16,137,829
10August 17, 2027$760,761$468,867$291,894$15,668,962
11September 16, 2027$760,761$477,348$283,414$15,191,615
12October 19, 2027$760,761$485,982$274,780$14,705,633
13November 16, 2027$760,761$494,772$265,989$14,210,861
14December 16, 2027$760,761$503,721$257,040$13,707,140
15January 17, 2028$760,761$512,832$247,929$13,194,308
16February 16, 2028$760,761$522,108$238,653$12,672,200
17March 16, 2028$760,761$531,552$229,209$12,140,648
18April 17, 2028$760,761$541,166$219,595$11,599,482
19May 16, 2028$760,761$550,955$209,807$11,048,527
20June 16, 2028$760,761$560,920$199,841$10,487,607
21July 17, 2028$760,761$571,066$189,695$9,916,541
22August 16, 2028$760,761$581,395$179,366$9,335,147
23September 18, 2028$760,761$591,911$168,850$8,743,236
24October 17, 2028$760,761$602,617$158,144$8,140,618
25November 16, 2028$760,761$613,517$147,244$7,527,101
26December 18, 2028$760,761$624,614$136,147$6,902,487
27January 16, 2029$760,761$635,912$124,849$6,266,575
28February 16, 2029$760,761$647,414$113,347$5,619,161
29March 16, 2029$760,761$659,124$101,637$4,960,037
30April 16, 2029$760,761$671,046$89,715$4,288,991
31May 16, 2029$760,761$683,184$77,577$3,605,807
32June 18, 2029$760,761$695,541$65,220$2,910,266
33July 16, 2029$760,761$708,122$52,640$2,202,145
34August 16, 2029$760,761$720,930$39,831$1,481,215
35September 17, 2029$760,761$733,970$26,792$747,245
36October 16, 2029$760,761$747,245$13,516$0

Informational simulation: it is not a loan offer. Payment dates move to the next business day according to Colombian holidays. Your institution may add insurance, fees or other costs.

How it is calculated

Fixed installment, step by step

The effective annual rate is converted to the equivalent monthly rate, and with it an equal installment is calculated for every month. Each month, part of the installment pays interest on the balance and the rest goes toward principal.

i = (1 + E.A.)^(1/12) − 1
installment = principal × i / (1 − (1 + i)^−n)
interest for the month = balance × i · principal for the month = installment − interest

The last installment settles the exact balance. Amounts are handled in whole cents to avoid accumulated rounding errors.

Questions

Questions about the simulator

What is the effective annual rate?

It is what the loan really costs over a year, counting the compounding of interest. If your institution gives you a monthly nominal rate, convert it first with the rate converter.

Why is my actual installment different?

Institutions may add insurance, fees or administrative charges, and sometimes round differently. This simulator calculates only principal and interest.

What is the usury rate?

It is the legal interest cap that can be charged in Colombia: 1.5 times the current bank interest rate (interés bancario corriente) certified by the Superintendencia Financiera for each category.

Does it work for other countries?

The fixed-installment calculation works in any currency, but the usury comparison and the holidays are specific to Colombia.

Guides

To understand the calculation

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