Debt Payoff Planner
Plan your debt-free date and see how extra monthly payments save interest
Debt details
Payoff summary
How the Debt Payoff Planner works
This planner simulates month-by-month amortisation on your outstanding balance. It compares paying only the minimum versus adding an extra amount each month, showing how much interest you save and how many months you shave off.
Principal paid = Payment − Interest • Repeats until balance reaches zero
If your minimum payment does not cover monthly interest, the debt will never be paid off - increase your payment amount.
Detailed features
Debt-free date
See the estimated month and year when your balance hits zero.
Extra payment impact
Compare minimum-only vs minimum + extra payment side by side.
Interest savings
Know exactly how much interest you avoid by paying more each month.
On the go
Get the same planner plus 60+ tools in the free Toolance Android app.
What the Debt Payoff Planner tells you
This calculator helps you compare payoff time and interest when you add extra money to a debt. It turns a small set of inputs into a clear payoff timeline, then shows the supporting breakdown so you can understand what moved the answer.
Inputs to check
- Current balance: use a recent statement, quote or realistic assumption.
- Interest rate: use a recent statement, quote or realistic assumption.
- Payment and extra amount: use a recent statement, quote or realistic assumption.
Try three scenarios
Run a likely case, a conservative case and a better case. Change one input at a time so you can see which assumption matters most.
How to use this estimate in a real decision
Write down the values you entered and the date you checked them. Compare options using the same assumptions, then include any fee, tax, penalty or provider rule that sits outside the calculator. A mathematically precise answer can still be incomplete when the inputs are old or optimistic.
Treat the result as a planning range, not a quote, approval or guaranteed outcome. Recalculate whenever your rate, price, income, goal date or business cost changes.