Buy now, pay later is no longer a niche option — the U.S. BNPL market is projected to reach $258.4 billion by 2031, up from $107 billion in 2025. Whether you're spreading the cost of a large purchase or managing monthly cash flow, the right BNPL app can save you real money in interest — if you choose wisely. Pair any of these tools with solid expense tracking apps to stay on budget. Here are the 9 best options available in the U.S. right now.
Quick Answer
The best buy now pay later apps in the U.S. include Affirm, Afterpay, Klarna, Zip, and Sezzle. Most offer 0% interest on pay-in-4 plans split over 6 weeks. The U.S. BNPL market hits $107 billion in 2025, making these tools mainstream for managing purchases without credit card debt.
Jump to
Summary Table
| Item Name | Price Range | Best For | Website |
|---|---|---|---|
| Klarna | 0% interest (short-term); up to 48-month plans | Flexible payment options & rewards | Visit Site |
| Affirm | 0%–36% APR; up to $20,000 | Large purchases & credit building | Visit Site |
| Afterpay | 0% interest; $35 late fee max | Fashion & lifestyle shoppers | Visit Site |
| PayPal Pay in 4 | 0% interest; $30–$1,500 purchases | Existing PayPal users | Visit Site |
| Sezzle | 0% interest; rescheduling fees apply | Budget shoppers & credit builders | Visit Site |
| Zip | $1–$5 per transaction fee; up to $1,500 | Everyday purchases anywhere | Visit Site |
| Perpay | No credit check; repay via paycheck | Bad credit or no credit history | Visit Site |
| Splitit | 0% interest; uses existing credit card | Cardholders avoiding new debt | Visit Site |
| Shop Pay Installments | 0% (4 payments) or 10%–36% APR (monthly) | Shopify store shoppers | Visit Site |
9 Best Buy Now Pay Later Apps in 2026: Complete Guide
Below you'll find detailed information about each option, including what makes them unique and their key benefits.
1. Klarna
Klarna is one of the most widely used buy now pay later apps, letting shoppers split purchases into four interest-free payments or defer payments up to 30 days. It integrates with thousands of retailers including H&M, Sephora, and ASOS, making it a flexible option whether you're shopping in-app or using the browser extension at checkout.
Key features:
- Pay in 4 installments — no interest if paid on time
- 30-day "Pay Later" option for full deferral
- Longer financing plans (6–36 months) available; interest rates vary by purchase
2. Affirm
Affirm stands out among deferred payment platforms for its transparent, no-hidden-fees structure — you see the total interest cost upfront before committing. It's particularly strong for larger purchases like furniture, electronics, and travel, with repayment terms ranging from 1 to 60 months depending on the retailer and your credit profile.
Notable perks:
- 0% APR available at select partner retailers
- APR ranges 0–36% — no late fees or compounding interest
- Works at Amazon, Walmart, and thousands of other stores
3. Afterpay
Afterpay is a popular installment payment service that splits your total into four equal payments due every two weeks — always interest-free. It's especially well-suited for fashion and beauty purchases, with strong partnerships across brands like Urban Outfitters, Levi's, and Ulta Beauty. According to Fortunly, Afterpay serves over 20 million active customers globally, reflecting how mainstream these split-payment tools have become.
What you get:
- Four biweekly payments — zero interest charged
- Late fees capped at 25% of the order value
- In-store Afterpay Card available via the app for physical retail
PayPal Pay in 4 is one of the most accessible buy now pay later options because millions of shoppers already have a PayPal account. It splits purchases between $30 and $1,500 into four equal payments over six weeks, with zero interest and no fees if you pay on time. It works at any retailer that accepts PayPal at checkout, giving it broad usability compared to store-specific BNPL tools.
Key details:
- 0% interest, no late fees on first missed payment at most merchants
- Purchase range: $30–$1,500
- No separate app download required if you already use PayPal
5. Sezzle
Sezzle stands out among installment payment apps for its credit-building feature — it reports payment history to credit bureaus, which most BNPL services don't do. Purchases are split into four interest-free payments over six weeks, and Sezzle Up (its premium tier) actively helps users improve their credit scores. It's a solid pick for shoppers who want short-term payment flexibility while building financial health simultaneously.
Key details:
- Four interest-free payments over 6 weeks
- Sezzle Up reports to credit bureaus (opt-in)
- Rescheduling fee applies if you delay a payment
6. Zip
Zip (formerly Quadpay) is a flexible deferred payment app that works virtually anywhere Visa is accepted, not just partner retailers. According to GlobeNewswire, Zip is among the top BNPL platforms projected to shape the $258 billion U.S. market by 2031. It charges a flat $1 per installment fee rather than interest, making costs predictable upfront.
Key details:
- Four payments over six weeks; $1 fee per installment
- Works in-store and online via a virtual Visa card
- Late fees apply if payments are missed
7. Perpay
Perpay is a buy now, pay later app built specifically for shoppers with limited or poor credit, making it one of the more accessible installment payment options available. You shop from Perpay's marketplace and repay through automatic paycheck deductions, which removes the risk of missed payments. It also reports payments to credit bureaus, helping users build credit over time.
Key features:
- No credit check required to get started
- Payments deducted directly from your paycheck
- Credit-building benefit included at no extra cost
8. Splitit
Splitit works differently from most installment apps — instead of issuing new credit, it splits purchases into monthly payments using your existing Visa or Mastercard credit card. This makes it a strong choice for shoppers who already have available credit and want zero interest, no fees, and no new credit applications. It's accepted at select online retailers and works without a separate approval process.
Key features:
- 0% interest when using an existing credit card
- No credit check or new account required
- Up to 24 monthly installments depending on the merchant
Shop Pay Installments is Shopify's built-in BNPL option, available at checkout across thousands of Shopify-powered stores. Powered by Affirm, it lets shoppers split purchases into 4 interest-free biweekly payments or longer monthly plans for larger orders. It's one of the most seamlessly integrated deferred payment solutions for online retail, requiring no separate app download if you already use Shop Pay.
Key features:
- 4 interest-free payments for orders $50–$999
- Monthly plans (with interest) available for orders up to $17,500
- No late fees on the 4-payment option
Final Words
Your best bet depends on whether you prioritize zero interest, flexible limits, or retailer compatibility — so match the app to your actual spending habits. Pair it with price tracking apps to make sure you're splitting payments on genuinely good deals.