Credit Card Payoff Calculator
See how long it takes to pay off your credit card and compare payoff strategies.
Last reviewed: Source: NCR — National Credit Regulator
The minimum-payment trap
South African credit cards typically require a minimum monthly payment of 5% of the outstanding balance (or R50, whichever is higher). That sounds reasonable until you realise what “5% of balance” means when balances grow with interest every month.
On a R50,000 balance at 22% interest, if you pay only the minimum every month, the outstanding balance still halves after about 2 years — but the tail is very long. The final rand can take another 10+ years to clear, because as the balance shrinks so does the minimum payment. At 5% of R500 that’s R25. Barely covers the monthly interest.
Paying a fixed rand amount every month — not a percentage — is how you break the cycle. The moment you stop reducing your payment as the balance falls, the payoff timeline compresses dramatically.
NCA caps for credit cards
| Fee | Maximum |
|---|---|
| Annual card fee | Not regulated — typical range R200 – R750 |
| Monthly service fee | R75.90 (including VAT) |
| Max interest rate | Repo + 14% (currently ≈ 21.75%) |
| Minimum payment | 5% of outstanding balance (or R50, whichever higher) |
| Credit life insurance | R4.50 per R1,000 balance per month (cap) |
The math of the minimum-payment trap
Here’s what happens to a R50,000 credit card balance at 22% interest under three payment strategies:
| Strategy | Payoff time | Total paid | Interest cost |
|---|---|---|---|
| Minimum (5% of balance) | ~12 years | ≈ R77,830 | ≈ R27,830 |
| Fixed R2,500/month | 26 months | ≈ R62,857 | ≈ R12,857 |
| Fixed R3,500/month | 17 months | ≈ R58,512 | ≈ R8,512 |
| Fixed R5,000/month | 12 months | ≈ R55,744 | ≈ R5,744 |
Going from R2,500/month to R5,000/month cuts the payoff time from 26 months to 12, and interest from ~R12,857 to ~R5,744 — a ~R7,100 saving on the R2,500 extra monthly commitment. The extra R2,500 goes almost entirely to capital, compounding heavily in your favour.
Avalanche vs snowball — two strategies for multiple cards
If you have balances on multiple cards, two widely-advocated strategies exist:
- Avalanche (mathematically optimal). Pay the minimum on every card. Put every spare rand towards the card with the highest interest rate. Once it’s cleared, roll its payment into the next highest. Saves the most interest.
- Snowball (psychologically effective). Pay the minimum on every card. Put every spare rand towards the smallest balance. Clear that, feel the win, roll the payment into the next smallest. Costs slightly more interest but keeps you motivated.
For small rate differences and multiple cards, snowball is often better because it builds momentum. For a card with significantly higher rate than the others, avalanche wins hands down.
Worked examples
R30,000 card balance at 22%, paying R1,500/month
Middle-case consumer. Stops spending on the card while paying off.
- Starting balance
- R30,000
- Monthly interest rate (22% / 12)
- ≈ 1.83%
- First month interest
- R550
- First month capital reduction
- R950
- Balance after 12 months
- ≈ R17,800
- Balance after 24 months
- R0
- Total paid over 24 months
- ≈ R36,000
Same R30,000 balance, paying only the minimum 5%
Minimum-payment trap in action.
- Starting balance
- R30,000
- First month minimum (5%)
- R1,500
- Balance after 12 months (declining payments)
- ≈ R24,000
- Balance after 5 years
- ≈ R12,500
- Balance after 10 years
- ≈ R3,800
Two changes that compound hugely
- Stop using the card while paying it off. Every swipe resets the progress. Use debit or cash until the balance is zero, even if it feels austere.
- Pay fixed rand, not percentage. Pick an amount you can sustain every month and don’t reduce it as the balance falls. Every subsequent month more of the fixed payment goes to capital.
Balance transfer and consolidation options
If you have good credit, moving a high-rate balance to a lower-rate product can save thousands:
- Access bond — if you own property, depositing into an access bond and paying the card from that liquidity costs you prime (≈ 11.75%) instead of 22%. Requires discipline to repay the bond equivalent.
- Personal loan — a fixed-term loan at 18–20% to clear cards at 22%. Works if you close the card afterwards.
- Retail banking “balance transfer” offers — less common in SA than the US/UK, but occasionally available. Read fine print: intro rates usually end after 6 months.
How this calculator works
Enter the current balance, interest rate, and your monthly payment. The calculator projects the payoff trajectory month by month, showing the balance curve, total interest paid, and payoff month. Add an extra lump-sum payment to see how much faster it clears.
Compare scenarios by running the calculator at multiple payment levels — the difference between paying R1,500 and R2,500 per month on a R30k balance is dramatic.
Sources
Frequently Asked Questions
Paying only the minimum (usually 2–3% of the balance) means most of your payment goes to interest, not principal. At 21% interest, it can take 10+ years to pay off the balance.
Credit card rates typically range from 16–22% per annum, depending on the card and issuer. This is significantly higher than most other loans, making credit card debt very expensive.
Some cards offer a low promotional rate (e.g., 5%) on balance transfers, then revert to the full rate. New purchases usually incur the full interest rate immediately.
Pay on time, reduce overall debt, keep credit utilization below 30%, and avoid applying for multiple cards. Credit scores improve gradually over 6–12 months of good behaviour.