Check principal movement
The first payment must cover estimated monthly interest before the balance starts falling. The ledger shows that split.
Debt payoff planner and interest calculator
Build a repayment baseline that shows what happens inside the payment, not just a payoff month. Compare the regular plan with one repeatable extra amount.
Calculated in your browser
Your repayment ledger will appear here
The result will separate principal from interest, compare two payment paths, and show estimated balance checkpoints.
Read the result in this order
A short payoff date is not useful if the payment causes a housing, food, medicine, utility, or work-transportation shortfall.
Check the time exposure
More months mean more time for a changed rate, new fee, missed payment, or income shock to alter the result.
Check whether the extra is durable
Only count the extra payment if it can repeat. A one-time amount and a monthly amount produce different paths.
Method and limits
The ledger applies the APR as a monthly rate, adds that month’s estimated interest, and then subtracts the payment. It assumes a fixed rate, no new charges or fees, and on-time monthly payments. The final payment may be smaller.
If the payment is no more than the first month’s interest, the tool stops instead of presenting a false payoff date. Compare the result with broader debt recovery options and read the calculation methodology.