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6 tools scored · 6 dimensions · Last reviewed June 2026
A payment processor handles charging your customers — card payments, subscriptions, invoicing, and increasingly the tax compliance that comes with selling internationally.
Stripe remains the default for developers building custom checkout flows, with the best documentation and broadest ecosystem of any processor. But a distinct category has grown around "merchant of record" providers — Paddle, Lemon Squeezy, and Polar — that take on the legal responsibility of being the seller of record in every country, handling VAT and sales tax compliance for you in exchange for a higher per-transaction fee. For a solo founder selling globally, that compliance handling alone can be worth the extra percentage point, since getting international tax wrong is a real legal and financial risk.
What are you looking for?
I want the best developer experience and full control
Stripe has the most polished API, the most complete documentation, and the largest ecosystem of guides and integrations of any payment processor — the default choice when you want to build a fully custom checkout experience.
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I sell globally and don't want to deal with international tax law
Paddle and Lemon Squeezy both act as merchant of record, meaning they are legally the seller in every country and handle VAT/sales tax compliance on your behalf — a major simplification for solo founders selling SaaS worldwide.
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I need marketplace or multi-party payment splitting
Braintree (owned by PayPal) has stronger built-in support for marketplaces and multi-party payment orchestration than a standard Stripe integration, at the cost of a more complex setup.
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| Weighted average | Overall | API design, checkout components, and integration speed. | Transaction fees and how they scale with volume. | Supported countries, currencies, and local payment methods. | Subscriptions, invoicing, tax handling, and dunning. | Overall cost relative to capability at typical SaaS volume. | Dispute handling, documentation, and account support quality. | Monthly |
| ★Stripe The default choice for developers worl… | 88 | 98 | 75 | 92 | 95 | 80 | 80 | Free usage |
| Braintree A PayPal company with strong enterpris… | 79 | 75 | 75 | 88 | 85 | 78 | 78 | Free usage |
| Lemon Squeezy Merchant of record built specifically … | 79 | 88 | 65 | 88 | 80 | 80 | 78 | Free usage |
| Paddle Merchant of record — Paddle handles yo… | 78 | 82 | 60 | 95 | 88 | 75 | 82 | Free usage |
| Polar Open-source, developer-first payments … | 78 | 90 | 70 | 78 | 70 | 82 | 70 | Free usage |
| PayPal The most recognised checkout brand for… | 74 | 65 | 68 | 96 | 75 | 72 | 70 | Free usage |
Click tool names to see the full radar breakdown · Open screener for advanced filtering
Developer UX
API design, checkout components, and integration speed.
Fees
Transaction fees and how they scale with volume.
Global Reach
Supported countries, currencies, and local payment methods.
Feature Set
Subscriptions, invoicing, tax handling, and dunning.
Price / Value
Overall cost relative to capability at typical SaaS volume.
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A merchant of record is legally the seller in the transaction, which means it — not you — is responsible for calculating, collecting, and remitting sales tax/VAT in every jurisdiction you sell into. Paddle, Lemon Squeezy, and Polar all operate this way. Stripe, by contrast, makes you the merchant of record, meaning you (or a tool like Stripe Tax) are responsible for that compliance yourself.
If you sell mainly in one country or have the resources to manage tax compliance yourself, Stripe's lower fees and superior developer experience usually win. If you're a solo founder or small team selling SaaS globally and want to avoid the legal complexity of international tax law entirely, the higher fee charged by Paddle or Lemon Squeezy is often worth it for the compliance handled.
PayPal remains the most recognised checkout brand among consumers — offering it as a payment option alongside cards measurably increases checkout conversion for some audiences simply through trust and familiarity, even though its developer experience for custom integrations lags well behind Stripe.
Stripe's standard rate is 2.9% + 30¢ per transaction for most cards; merchant-of-record providers like Paddle charge more (often 5%+ all-in) because that fee bundles in the tax compliance work. Rates vary by country, card type, and volume — always check current published pricing rather than relying on a remembered number, as these change.
Polar is newer and smaller than Paddle or Lemon Squeezy, but it's gaining real traction specifically with open-source and developer-tool projects thanks to its GitHub-native integrations and developer-first focus. Worth evaluating if you're in that specific niche; the more established players still have a longer track record for general SaaS.
How these scores are calculated
Payment processor scores are based on published per-transaction fees, supported countries and local payment methods, API/SDK quality and documentation, built-in subscription and invoicing feature depth, and dispute/chargeback handling quality as of 2026.
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