Which strategy saves the most interest?

Avalanche (highest APR first) usually minimizes interest. Snowball (smallest balance first) can feel faster mentally, both are supported here.

Why does the timeline look long?

If minimum payments barely cover interest on high-APR debt, payoff stretches out. Try increasing the extra payment to see sensitivity.

Are fees or promotional rates modeled?

No. This uses a constant APR per debt. Promo periods and fees would need to be approximated outside the tool.

All Calculators

Debt Payoff Calculator (Snowball & Avalanche)

Enter each balance, APR, and minimum payment, then add an optional extra monthly amount toward debt. The simulator accrues interest monthly and applies your strategy to the extra portion, educational, not a payoff quote from your lender.

Debts

Balance, APR, and minimum payment for each account. Add or remove rows as needed.

Account

Balance

APR %

Min payment

Account

Balance

APR %

Min payment

Extra payment / month

Payoff method (your plan)

Debt-Free Countdown (Avalanche)

24 months

Target payoff date: Sep 3, 2028

Estimated progress after month 12

52% of starting balances paid down (principal).

Avalanche

Highest APR first

Payoff: 24 mo · Sep 3, 2028
Total interest: $1,592
Interest saved vs. min only: $2,586
Total paid: $12,592

Snowball

Smallest balance first

Payoff: 24 mo · Sep 3, 2028
Total interest: $1,592
Interest saved vs. min only: $2,586
Total paid: $12,592

Avalanche vs Snowball: Total Interest

Lower is better (same debts, same extra payment).

Total interest (Avalanche)

$1,592

Interest saved vs. min payments

$2,586

Total paid (principal + interest)

$12,592

Minimum-only interest (baseline)

$4,178

Payoff Timeline: Balance Remaining

Your selected method (Avalanche).

Stacked Balances by Debt

Sampled across the payoff for readability.

Month-by-Month Payoff Schedule (Avalanche)

Month	Interest	Cum. interest	Total left	Credit card	Personal loan
1	$145	$145	$10,565	$3,910	$6,655
2	$138	$284	$10,124	$3,615	$6,509
3	$131	$415	$9,675	$3,314	$6,361
4	$124	$539	$9,219	$3,007	$6,212
5	$117	$656	$8,756	$2,694	$6,062
6	$110	$766	$8,286	$2,376	$5,910
7	$102	$868	$7,808	$2,051	$5,757
8	$94	$962	$7,322	$1,720	$5,602
9	$87	$1,049	$6,829	$1,383	$5,445
10	$79	$1,127	$6,327	$1,039	$5,288
11	$71	$1,198	$5,818	$689	$5,128
12	$62	$1,260	$5,300	$332	$4,967
13	$54	$1,314	$4,774	$0	$4,774
14	$46	$1,360	$4,360	$0	$4,360
15	$42	$1,401	$3,941	$0	$3,941
16	$38	$1,439	$3,519	$0	$3,519
17	$34	$1,473	$3,093	$0	$3,093
18	$30	$1,502	$2,662	$0	$2,662
19	$26	$1,528	$2,228	$0	$2,228
20	$21	$1,549	$1,789	$0	$1,789
21	$17	$1,567	$1,347	$0	$1,347
22	$13	$1,579	$899	$0	$899
23	$9	$1,588	$448	$0	$448
24	$4	$1,592	$0	$0	$0

Send to your workspace

One-click from this calculator into goals, budgets, or your Finance Profile recurring money.

Common Questions

Frequently Asked Questions

Month

Interest

Cum. interest

Total left

Credit card

Personal loan

$145

$10,565

$3,910

$6,655

$138

$284

$10,124

$3,615

$6,509

$131

$415

$9,675

$3,314

$6,361

$124

$539

$9,219

$3,007

$6,212

$117

$656

$8,756

$2,694

$6,062

$110

$766

$8,286

$2,376

$5,910

$102

$868

$7,808

$2,051

$5,757

$94

$962

$7,322

$1,720

$5,602

$87

$1,049

$6,829

$1,383

$5,445

$79

$1,127

$6,327

$1,039

$5,288

$71

$1,198

$5,818

$689

$5,128

$62

$1,260

$5,300

$332

$4,967

$54

$1,314

$4,774

$46

$1,360

$4,360

$42

$1,401

$3,941

$38

$1,439

$3,519

$34

$1,473

$3,093

$30

$1,502

$2,662

$26

$1,528

$2,228

$21

$1,549

$1,789

$17

$1,567

$1,347

$13

$1,579

$899

$1,588

$448

$1,592