You have been running the snowball for four months. Two small debts are gone, and you feel great, until you open your credit monitoring app and the number dropped 12 points. Did the payoff strategy backfire? Is attacking the smallest balance first somehow worse for your credit than attacking the highest rate?
No. The order you pay debts in does not hurt your score. But the dip you saw is real, it has an explanation, and it is worth understanding so you do not abandon a working plan over a number that will recover on its own.
What actually moves your score while you pay down debt
Two pieces of the FICO formula do almost all the work here. Payment history is about 35% of your score, the single biggest slice, and both the snowball and the avalanche require the same thing: minimum payments, on time, on every account, every month. Amounts owed is about 30%, and inside that category sits credit utilization, your balances divided by your limits. Every extra payment that lowers a balance improves utilization, regardless of which debt you aimed it at.
That is the whole story in one paragraph: keep every account current, push balances down, and the score trends up. The payoff order is nearly irrelevant to the formula. Missed payments are what damage scores, not the sequence you chose.
So why did the number dip?
Three usual suspects. First, you closed the paid-off card. That shrinks your total available credit, which can raise your utilization ratio overnight even though you owe less, and it can shorten your average account age. Second, you paid off an installment loan, a car note or personal loan, and closed accounts change your credit mix, which the formula notices. Third, plain timing: scores update when creditors report, usually monthly, so the number you see can lag your actual progress by a billing cycle or reflect a balance from before your big payment posted.
None of these mean the strategy failed. They are the score digesting a change. In my experience watching people run these plans, the dip-after-a-payoff is one of the most common reasons someone quits in month five, right before the trend turns in their favor. Do not be that person.
The one rule that protects the score
Keep paid-off credit cards open. An open card with a zero balance is doing quiet work for you: it holds your total credit limit up, which holds your utilization down, and it keeps aging, which helps your history length. The exception is a card charging an annual fee you will never use again; paying $95 a year for a utilization cushion is bad math. Close that one, keep the oldest no-fee card open no matter what, and put a small recurring charge on it so the issuer does not close it for inactivity.
Between snowball and avalanche on credit grounds alone, the honest answer is that it barely matters. The avalanche can shave utilization a little faster when your highest-rate debt is also a high-balance card. The snowball can clear whole accounts sooner, which feels like progress because it is progress. Pick the one you will still be running in month fourteen. Run your own numbers side by side:
Compare snowball vs avalanche for your debts
Frequently asked questions
Does the debt snowball hurt your credit score?
No. Keep minimum payments current on every account and the snowball does not harm your score. Falling balances lower your utilization, about 30% of a FICO score, so the trend is upward.
Why did my credit score drop after I paid off a debt?
Usually a closed card shrinking your available credit, a closed installment loan changing your credit mix, or reporting lag. The dip is temporary and reverses as lower balances report.
Should you close credit cards after paying them off?
Usually not. Open cards preserve your credit limit and history length. Close a card only if its annual fee outweighs the utilization benefit.
Which is better for your credit score, snowball or avalanche?
Both improve it over time. The avalanche can improve utilization slightly faster on high-balance cards. The difference is small; the method you stick with wins.
How long until your score improves after paying off debt?
Lower balances typically report within one to two billing cycles. Meaningful improvement builds over months of on-time payments and falling utilization.
Sources: FICO score factor weightings (payment history ~35%, amounts owed ~30%); creditor reporting practices per standard bureau guidance. Educational content, not financial advice. Verified October 2026.