The Real Cost of Waiting to Make a Plan
The average UK credit card carries a balance of £2,592 at 24.65% APR — the highest rate the Bank of England has recorded in over 30 years. In the US, it’s closer to $6,595 at around 21.5%. Neither number goes anywhere on its own. It sits there, quietly compounding, every single month you don’t have a plan attacking it.
This tool builds that plan in under two minutes. Enter what you owe, on what, at what rate, and how much you can actually put toward it each month — and you get back the one thing most people never work out for themselves: an exact month you’ll be debt-free, not a vague guess.
It runs three strategies against your numbers — Avalanche (highest interest first, saves you the most money), Snowball (smallest balance first, keeps you motivated with quick wins), and Smart Focus (an AI-balanced approach weighing both) — then shows you which one gets you free fastest and exactly what each one costs you in interest. Multiple debts, UK, US, or Canadian currency — this handles all of it.
AI Debt Payoff Planner
Enter your debts. Get your exact debt-free date and a step-by-step plan to get there faster.
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| Strategy | Debt-Free Date | Total Interest | Months |
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| Month | Payment | Interest | Principal | Remaining |
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Save Your Plan & Track Progress
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What Your Results Actually Mean
Your debt-free date isn’t a prediction — it’s arithmetic. The calculator applies standard amortisation, the same maths banks use internally, to the exact numbers you entered. If your real minimum payments or interest rates change, rerun it. The date moves with your numbers, not the other way round.
Two moves make the biggest difference from here. First, try the What If simulator above — even £50 extra a month can cut years off a high-APR balance. Second, if your result shows minimum payments are barely denting the balance, that’s worth taking seriously: our Minimum Payment Trap Calculator shows exactly how much of every payment is going to interest versus your actual balance.
If you’re in the UK and this plan still shows years of repayment ahead on unmanageable balances, an IVA or the government’s Breathing Space scheme might change the maths entirely — read what an IVA actually involves or how Breathing Space works before assuming your only option is to keep paying as-is. And once your debt is under control, it’s worth checking whether you should be building savings alongside repayment or focusing everything on the debt first — the maths isn’t always obvious.
Paying off debt also moves your credit score — usually upward, once utilisation drops. See how with the AI Credit Score Roadmap. For the full picture on strategy, start with the debt payoff hub or, if you’re UK-based, the UK debt help hub.
Written By
Hamid Ali — MSc Accounting & Finance (University of Northampton), ACCA in progress, Founder of DebtShift. Hamid built DebtShift’s tools using standard amortisation and industry-standard credit scoring methodology, verified against current Bank of England, Federal Reserve, and credit bureau data.
⚠️ Struggling right now — not just planning ahead?
UK: DebtShift is not regulated by the FCA and this tool is not financial advice. For free, confidential debt help contact StepChange or Citizens Advice.
US: DebtShift is not a licensed financial advisor. For free debt support contact the NFCC.
Questions People Actually Ask About This
Is this debt payoff calculator actually free?
Yes, completely — no account, no card details, no limit on how many times you use it. You can recalculate as often as you like with different budgets or strategies. Saving your plan so it’s there when you come back is a paid Pro feature at £9/month, but running the calculator and seeing your full results costs nothing at all.
How accurate is the debt-free date this gives me?
It’s as accurate as the numbers you enter, because it runs the same amortisation formula lenders use internally — balance minus payment plus interest, month by month, until it hits zero. It assumes your APR, minimum payments, and monthly budget stay constant. If any of those change in real life — a rate rise, a new purchase, a tighter month — rerun the numbers and the date will update.
What’s the difference between the Avalanche and Snowball method?
Avalanche throws every spare pound at your highest-APR debt first, regardless of size — mathematically it always saves you the most in total interest. Snowball ignores interest rate and attacks your smallest balance first, so you clear a debt completely sooner, which for a lot of people is the difference between sticking with a plan and giving up on it. Neither is “wrong” — the comparison table above shows you the actual pound-for-pound difference for your specific debts.
Will using this tool affect my credit score?
No — this is a calculator, not a credit application, so it never touches your credit file and involves no search of any kind, hard or soft. What it does show you is how paying down your balances is likely to affect your score over time, since credit utilisation (how much of your available credit you’re using) is one of the biggest factors in most scoring models.
What if I can’t even afford my minimum payments right now?
If your monthly budget doesn’t cover your total minimum payments, this calculator will flag it rather than give you a false date. That’s a sign this tool isn’t enough on its own — you need to understand what actually happens if you stop paying and what your rights are before creditors or collectors get involved, and speak to a free debt charity directly rather than relying on a calculator alone.
What’s Smart Focus, and how is it different from Avalanche or Snowball?
Smart Focus ranks your debts by monthly interest cost rather than pure APR or pure balance — balance multiplied by rate. In practice it usually lands between Avalanche and Snowball: it prioritises whichever debt is bleeding you the most money right now, which is sometimes a mid-sized balance at a brutal rate rather than your single highest APR card. It’s a reasonable default if you’re unsure which of the other two suits you.
Does this tool report anything to my bank, lender, or credit file?
No. Nothing you enter is shared with any bank, lender, or credit reference agency. If you choose to save your plan as a Pro member, it’s stored against your DebtShift account only, for your own tracking. If you email yourself a copy of your results, that goes to the email address you provide and nowhere else.
Can I use this if my debts are in more than one currency?
The tool calculates in a single currency at a time — switch using the GBP, USD, or CAD buttons at the top. If you genuinely have debts split across currencies, run the calculation once per currency group and add the results together manually, since exchange rates fluctuate and this tool doesn’t convert between them.