Credit Card Payoff Spreadsheet

Build the Spreadsheet Before You Throw Another Dollar at Debt

Open a blank sheet and list each card in its own row: issuer, current balance, APR, minimum payment, and due date. Add columns for planned extra payment, new interest accrued, and remaining balance after the month. Use real figures from your latest statements. For example, enter a $4,200 balance on a card charging 23.9% APR with a $95 minimum due on the 15th. The formula for next month’s interest is balance times APR divided by 12. Update the sheet the day after every statement posts so the numbers never drift. This setup takes 20 minutes once and saves hundreds in avoidable interest every quarter because you see exactly where the next extra payment lands.

Avalanche Beats Snowball When Rates Sit Above 18%

Order the cards from highest APR to lowest. Throw every spare dollar at the top card while paying minimums on the rest. A $9,800 balance at 26.4% APR plus three lower-rate cards totaling $12,600 will cost $4,180 in interest over 38 months under avalanche. Switching to snowball order stretches the same payoff to 47 months and adds $1,070 in extra interest. The math is fixed: higher rates compound faster, so eliminating them first stops the bleeding. Enter the order once, then let the spreadsheet auto-sort each month after you input new balances. No feelings, just the numbers on the screen.

Track Every Payment and New Charge Without Exception

Log the exact payment amount and date for each card the same day it clears. Add any new purchases in a separate column so they do not hide inside the payoff total. If you charge $312 on the 22% card on March 8, that amount joins the balance before the next interest calculation. People who skip this step underestimate payoff time by four to seven months on average. Set a recurring calendar reminder for the first and fifteenth of every month. The sheet stays accurate, the interest projections stay honest, and you never wonder why the total is not shrinking as fast as you expected.

Run the Balance Transfer Numbers Before You Accept the Offer

A 0% intro APR on a $6,500 transfer saves roughly $1,430 in interest over 15 months compared with leaving the balance at 21%. Subtract the 3% transfer fee of $195 and you still net $1,235. Paste the fee and the new 0% rate into the spreadsheet and compare the revised payoff date. If the fee pushes the break-even past the promo window, skip the transfer. Always recalculate after the transfer posts because the old card balance drops and the new card row appears with its own minimum. The sheet shows the true savings in one glance.

Stop the Minimum Payment Trap With One Extra Input

Minimum payments on an $11,300 total balance at 22% APR stretch payoff past a decade and rack up $8,900 in interest. Raise the extra payment field to $250 above minimums and the timeline drops to 52 months with $3,140 in interest. The spreadsheet calculates both scenarios side by side so you see the cost of staying comfortable. Update the extra amount the moment you free up cash from a finished subscription or a raise. Interest compounds monthly; every extra dollar applied early removes future charges permanently.

After Payoff, Decide on the Card With the Spreadsheet Still Open

Once a balance hits zero, keep the row in the sheet for six months while you monitor for any lingering charges or fees. Closing the card can drop your credit score temporarily because utilization and average age shift. Leaving it open with no balance costs nothing if the annual fee is zero. Run the numbers on both choices inside the same file so the decision rests on data, not habit. Consult a CPA or financial advisor for any tax or credit questions that arise.

Frequently Asked Questions