Luther Sales

Pay-later, compared

Buy now, pay later, minus the fine-print surprises.

A plain-spoken comparison of Affirm, Klarna, Afterpay, Sezzle, Zip, PayPal Pay in 4 and Perpay: what each one costs, when it charges late fees, and how it checks your credit.

See the comparison

The line-up

Seven pay-later services, side by side. Terms checked October 2026; always confirm at checkout.

Affirm

Pay in 4 with no late fees, plus longer monthly plans at big-name stores.

Pay in 4
Interest-free, every two weeks
Late fees
None (Affirm says it never charges them)
Longer plans
Monthly plans, roughly 0%–36% APR
Credit check
Soft check to see what you qualify for

Klarna

Pay in 4 or pay later, a shopping app, and financing for bigger buys.

Pay in 4
Interest-free, every two weeks
Late fees
Up to $7, capped at 25% of the order
Longer plans
Financing, up to about 36% APR
Credit check
Soft check for Pay in 4

Afterpay

Pay in 4 with a 25% cap on late fees; now part of Cash App.

Pay in 4
Interest-free, every two weeks
Late fees
Up to $8 per missed payment, capped at 25% of the order
Longer plans
Pay Monthly, 0%–35.99% APR
Credit check
No hard check for Pay in 4

Sezzle

Pay in 4 or Pay in 2, with optional credit reporting and paid tiers.

Pay in 4
Interest-free, every two weeks
Late fees
Yes; late and failed-payment fees vary by state
Longer plans
Monthly financing on some purchases
Credit check
Soft check

Zip

Pay in 4 over six weeks, almost anywhere, with small per-order fees.

Pay in 4
No interest, over six weeks
Late fees
Yes; amount depends on the plan
Longer plans
Pay in 8 for larger purchases
Credit check
Soft check

PayPal Pay in 4

No late fees and no interest, wherever PayPal checkout is offered.

Pay in 4
Interest-free, every two weeks ($30–$1,500)
Late fees
None
Longer plans
Pay Monthly, 3–24 months; APR varies by credit
Credit check
Soft check for Pay in 4

Perpay

A marketplace paid from your paycheck: no interest and no credit-score gate.

Pay in 4
Different model: payroll deductions
Late fees
See Perpay's terms; payments come from your paycheck
Longer plans
Payments spread over paychecks
Credit check
Built around your paycheck, not your score

At a glance

ServicePay in 4Late fees Longer plansCredit checkLink
AffirmInterest-free, every two weeksNone (Affirm says it never charges them)Monthly plans, roughly 0%–36% APRSoft check to see what you qualify forVisit ↗
KlarnaInterest-free, every two weeksUp to $7, capped at 25% of the orderFinancing, up to about 36% APRSoft check for Pay in 4Visit ↗
AfterpayInterest-free, every two weeksUp to $8 per missed payment, capped at 25% of the orderPay Monthly, 0%–35.99% APRNo hard check for Pay in 4Visit ↗
SezzleInterest-free, every two weeksYes; late and failed-payment fees vary by stateMonthly financing on some purchasesSoft checkVisit ↗
ZipNo interest, over six weeksYes; amount depends on the planPay in 8 for larger purchasesSoft checkVisit ↗
PayPal Pay in 4Interest-free, every two weeks ($30–$1,500)NonePay Monthly, 3–24 months; APR varies by creditSoft check for Pay in 4Visit ↗
PerpayDifferent model: payroll deductionsSee Perpay's terms; payments come from your paycheckPayments spread over paychecksBuilt around your paycheck, not your scoreVisit ↗

New to pay-later?

Pay-in-4 splits a purchase into four payments, usually every two weeks, with no interest when you pay on time. Longer monthly plans work more like a loan, with interest. Our short guide covers the costs, the credit side and a few habits that keep it painless.

How pay-later works

Quick answers

Is buy now, pay later free?

Pay-in-4 plans are usually interest-free if you pay on time. Costs come from late fees (some services charge them, some don't), per-order fees at a few services, and interest on longer monthly plans.

Which services don't charge late fees?

Affirm and PayPal Pay in 4 say they don't charge late fees. Klarna and Afterpay do, with caps tied to the order size. Check the terms shown at checkout, since they can change.

Does pay-later affect my credit?

Most services use a soft check to approve Pay in 4, which doesn't affect your score. Some report payments to credit bureaus: Affirm reports to Experian, and Sezzle offers opt-in reporting. Longer monthly plans can involve a hard check.

Can I use pay-later anywhere?

Each service works at the stores that offer it at checkout. Some apps, like Zip and Sezzle's paid tiers, can create a virtual card so you can use them at more places.