Yes, Shop Pay can affect your credit score. As of 2025, Affirm — the lender behind Shop Pay Installments — reports every plan it issues, including short-term Pay-in-4 plans, to Experian and TransUnion. On-time payments can help build your payment history. Missed payments can pull your score down and follow you for years.
Applying at Checkout Does Not Hurt Your Score
When you choose Shop Pay Installments at checkout, the lender runs a soft credit inquiry to decide whether to approve the purchase. Soft inquiries are invisible to other lenders and have no effect on your credit score.1U.S. Small Business Administration. Credit Inquiries: What You Should Know About Hard and Soft Pulls That is different from a mortgage, auto loan, or credit card application, where a hard inquiry can shave a few points off your score. Eligible Shop Pay purchases run from $50 to $30,000, with terms that vary by store.2Affirm. About Shop Pay Installments
What Gets Reported to the Credit Bureaus
The reporting rules changed in 2025. Affirm now reports all payment plans to Experian for plans starting on or after April 1, 2025, and to TransUnion for plans starting on or after May 1, 2025.3Affirm Help Center. Affirm Credit Reporting Policy That includes both plan types Shop Pay offers.
Pay-in-4
Pay-in-4 splits a purchase into four equal, interest-free payments every two weeks. These biweekly plans used to stay off credit reports. Under the current policy, on-time biweekly payments now count toward your payment history, and missed ones can hurt it. Pay-in-4 plans opened before the 2025 start dates generally were not shared with bureaus.
Monthly Installment Plans
Longer plans run three to twelve months and may carry interest anywhere from 0% to 36% APR depending on your creditworthiness and the merchant’s terms.2Affirm. About Shop Pay Installments All activity is reported to Experian and TransUnion, including on-time, late, and missed payments.3Affirm Help Center. Affirm Credit Reporting Policy Monthly plans are typically larger and last longer, so they carry more weight in your credit profile. Only debit cards are accepted, and payments are pulled automatically on each due date, so keep enough in the linked account.4Shop Help Center. Manage Your Automatic Payment Settings
How Payments Can Help or Hurt Your Score
A new installment loan lowers the average age of your accounts, which makes up about 15% of a FICO score. It also adds to your credit mix, worth roughly 10%.5myFICO. How Scores Are Calculated Consistent on-time payments over several months strengthen your payment history, the single largest scoring factor. That is the upside.
The downside sits on the other side of the same reporting. Shop Pay Installments does not charge late fees on any plan.2Affirm. About Shop Pay Installments The absence of a fee is easy to misread. Missing a payment can block you from using Shop Pay Installments again, and payments more than 30 days past due may be reported as late to the credit bureaus.6Affirm Help Center. Late Payments
If a balance goes unpaid long enough, the lender can send it to a third-party collection agency. A collection account can stay on your credit report for up to seven years from the date the original delinquency began.7Office of the Law Revision Counsel. 15 U.S. Code 1681c – Requirements Relating to Information Contained in Consumer Reports A single collection entry can drop a score significantly. The real penalty for missing a Shop Pay payment is not a dollar charge. It is the mark on your report.
Returns and Refunds While a Plan Is Active
Returning a Shop Pay purchase does not automatically cancel the loan. The refund goes to Affirm first, which applies it to your outstanding balance and adjusts your remaining payments. If the loan is already paid off, the refund goes back to the payment method you used.8Shopify Help Center. Shop Pay Installments Customer Experience
Two details matter for your credit. Interest you already paid on a monthly plan is not refunded; it is the cost of the borrowing you did. And if the merchant issues store credit or a gift card instead of money, your loan balance does not change and every scheduled payment remains your responsibility.8Shopify Help Center. Shop Pay Installments Customer Experience Keep making payments while a return is pending. A missed payment during that window can still be reported.
Effect on Mortgage and Other Loan Applications
Outstanding Shop Pay balances can complicate a mortgage or other major loan. Lenders calculate your debt-to-income ratio to decide how much more borrowing you can handle, and installment balances count if the lender sees them on your report or bank statements.
Mortgage underwriters are looking harder at buy-now-pay-later debt. The Department of Housing and Urban Development has sought public input on how BNPL debt affects mortgage affordability assessments, particularly for FHA-insured loans. Some guidelines allow short-term debts to be excluded from DTI if fewer than ten payments remain and the total is less than 5% of your gross monthly income, but not every lender applies that exception. Even a balance that does not show on a credit report can surface when an underwriter reviews bank statements and sees recurring automatic charges.
Where BNPL Credit Scoring Is Headed
Credit scoring is adapting to buy-now-pay-later. FICO has announced two new models, FICO Score 10 BNPL and FICO Score 10 T BNPL, that incorporate BNPL data. They aggregate multiple BNPL loans together for certain variables so that a run of small purchases is not treated like opening many traditional accounts at once. FICO has said this approach can actually raise scores for some BNPL borrowers with positive payment histories.9FICO. FICO Unveils Groundbreaking Credit Scores That Incorporate Buy Now, Pay Later Data The models are being offered alongside existing FICO scores while lenders evaluate them.
Separately, the Consumer Financial Protection Bureau issued an interpretive rule stating that BNPL lenders using digital accounts are subject to many of the same protections as credit card issuers, including billing dispute rights and cost-of-credit disclosures.10Consumer Financial Protection Bureau. Use of Digital User Accounts to Access Buy Now, Pay Later Loans If you find an error tied to a Shop Pay loan on your credit report, you can dispute it with the credit bureau and with the lender directly.11Federal Trade Commission. FCRAs Furnisher Rule: Its All About Accuracy and Integrity