Add $100 a Month — Faster Card Payoff
A $10,000 balance at 20% APR paid with $250 plus $100 extra a month. A pre-filled credit card payoff calculator scenario.
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Your card setup
Added on top of your payment
Results
Monthly payment
$42
Payoff time
40 months
Total interest
$3,692
Interest saved
$10,912
vs minimum payments
Payoff date
…
Total paid
$13,692
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Balance decay & interest
Month-by-month schedule
| Month | Payment | Principal | Interest | Balance |
|---|---|---|---|---|
| 1 | $350 | $183 | $167 | $9,817 |
| 2 | $350 | $186 | $164 | $9,630 |
| 3 | $350 | $190 | $161 | $9,441 |
| 4 | $350 | $193 | $157 | $9,248 |
| 5 | $350 | $196 | $154 | $9,052 |
| 6 | $350 | $199 | $151 | $8,853 |
| 7 | $350 | $202 | $148 | $8,651 |
| 8 | $350 | $206 | $144 | $8,445 |
| 9 | $350 | $209 | $141 | $8,236 |
| 10 | $350 | $213 | $137 | $8,023 |
| 11 | $350 | $216 | $134 | $7,807 |
| 12 | $350 | $220 | $130 | $7,587 |
| 13 | $350 | $224 | $126 | $7,363 |
| 14 | $350 | $227 | $123 | $7,136 |
| 15 | $350 | $231 | $119 | $6,905 |
| 16 | $350 | $235 | $115 | $6,670 |
| 17 | $350 | $239 | $111 | $6,431 |
| 18 | $350 | $243 | $107 | $6,188 |
| 19 | $350 | $247 | $103 | $5,941 |
| 20 | $350 | $251 | $99 | $5,690 |
| 21 | $350 | $255 | $95 | $5,435 |
| 22 | $350 | $259 | $91 | $5,176 |
| 23 | $350 | $264 | $86 | $4,912 |
| 24 | $350 | $268 | $82 | $4,644 |
| 25 | $350 | $273 | $77 | $4,371 |
| 26 | $350 | $277 | $73 | $4,094 |
| 27 | $350 | $282 | $68 | $3,812 |
| 28 | $350 | $286 | $64 | $3,526 |
| 29 | $350 | $291 | $59 | $3,235 |
| 30 | $350 | $296 | $54 | $2,939 |
| 31 | $350 | $301 | $49 | $2,638 |
| 32 | $350 | $306 | $44 | $2,332 |
| 33 | $350 | $311 | $39 | $2,020 |
| 34 | $350 | $316 | $34 | $1,704 |
| 35 | $350 | $322 | $28 | $1,383 |
| 36 | $350 | $327 | $23 | $1,056 |
| 37 | $350 | $332 | $18 | $723 |
| 38 | $350 | $338 | $12 | $385 |
| 39 | $350 | $344 | $6 | $42 |
| 40 | $42 | $42 | $1 | $0 |
Features
- Payoff months & payoff date
- Fixed payment or minimum strategy
- Savings vs minimum payments
- Month-by-month balance schedule
- Shareable result card + CSV export
Scenario Benchmark
Key figures for Add $100 a Month — Faster Card Payoff.
Monthly payment
$42
Payoff time
40 months
Total interest
$3,692
Interest saved
$10,912
Total paid
$13,692
Frequently asked questions
How the maths works
Credit cards compound monthly, so interest grows fastest early on. Paying more than the minimum — even a small fixed amount — shortens the payoff dramatically because more of each payment hits the balance.
- 1Monthly interest = balance × APR / 12.
- 2Minimum payment = max(floor, balance × minimum%) + interest; fixed payment is the amount you choose.
- 3Each month, interest is charged first and the rest of the payment reduces the balance.
- 4The schedule uses exact numbers, so the balance reaches zero in the final month.
Figures are illustrative and exclude fees, penalties and rate changes. Not financial advice.
Everything you need to know
Why minimum payments take so long
A typical minimum of 1% of the balance mostly covers the interest charge, leaving only a few dollars to reduce what you owe.
At a 22% APR, a $10,000 balance paid only at the minimum can take decades and more than double in interest — the calculator shows your exact number.
The fastest lever: extra payments
Every extra dollar goes straight to the balance, cutting future interest and shortening the timeline by months.
Set a fixed payment you can sustain — consistency beats occasional large payments.
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Card payoff scenarios
Jump to a pre-filled example, or start from scratch.
Pay Off $5,000 Card at 20% APR
A typical first-card balance — see exactly how long $150 a month takes and what it costs.
The $10K Minimum Payment Trap
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$15K Balance Transfer at 0% APR
Zero interest changes everything — see how fast a 0% window clears $15,000.
Add $100 a Month — Faster Card Payoff
The $100-a-month lever: what one modest habit does to your payoff date.
Pay Off a $20K High-Interest Card
High balances at high rates compound fast — $600 a month is the antidote.
Pay Off Your Card in 3 Years — What to Pay?
Working backwards from a 3-year goal — the monthly number that gets you there.
Credit Card Debt-Free in 1 Year
The aggressive one-year sprint — what it takes and what it saves.
Debt Consolidation Loan vs Card Payoff
The consolidation question — compare your card plan against a cheaper fixed loan.