Stripe vs Polar: Which Payment Provider Should You Choose for Your SaaS?

I've shipped products on Stripe for years, and recently added Polar to NuxtBeyond as a second payment option. After wiring up both, the choice is less about "which is better" and more about "how much of the tax and compliance headache do you want to own."

The first version of this post, from June 2026, missed something: Stripe Managed Payments, Stripe's own merchant of record option, went GA in April. That turns this into a three-way choice. Fees and limits below were checked on each provider's own pages on 2026-10-17.

Here's the honest breakdown for a solo founder or small team.

The Short Version

Pick Stripe if you're US-only or small, or you need advanced billing like usage-based pricing or marketplaces: it's the cheapest per sale, but you're the merchant and tax is your job. Pick Polar if you sell digital products globally and want a simple merchant of record (MoR) that handles VAT for you and, on a typical $50 US-card sale, costs less than Stripe's version. Pick Stripe Managed Payments if you want an MoR but need to stay inside Stripe, and your product fits its rules (Checkout or Payment Links, digital products, no Connect). I'd start on plain Stripe and move once VAT becomes a real problem.

What "Merchant of Record" Actually Means

This is the whole ballgame, so it's worth being precise.

With plain Stripe, you are the seller. Stripe processes the payment. Tax is your problem. Stripe Tax can calculate and collect the right amount, but you still register, file and remit in every jurisdiction yourself (Stripe's Tax Complete plan adds registrations and filings, or you pay a service to). For an EU/UK/global audience, that's dozens of registrations.

With a merchant of record, the MoR is legally the seller. The transaction is between your customer and the MoR, which then pays you out. Because it's the seller, it's liable for VAT/GST/sales tax and handles all of it. You get one payout and one dashboard, not a compliance project.

Polar is an MoR. So are Creem, Paddle and Lemon Squeezy. Polar's angle is that it's the developer-first, open-source one.

And since April 22, 2026, Stripe is one too, if you turn on Stripe Managed Payments. So "Stripe means tax is your problem" is no longer the full story. It's still true for plain Stripe, and Managed Payments comes with a narrower set of rules.

What About Stripe Managed Payments?

Managed Payments is Stripe acting as merchant of record for digital products. Stripe becomes the seller and handles sales tax, VAT and GST, fraud, disputes and transaction-level customer support, while you keep your Stripe account, dashboard and API. It's for founders who are already on Stripe and want an MoR without moving. The rules:

• Fee: 3.5% per successful transaction, on top of standard Stripe fees. On a US card that's 2.9% + 30¢ + 3.5%, about 6.4% + 30¢, before any international-card or currency-conversion surcharge.
• Checkout or Payment Links only. No Elements or embedded components, and subscriptions have to be created through Checkout or Payment Links. Third-party tax integrations aren't supported.
• Digital products only. Software, digital media, online courses, electronically supplied services like hosting. Not physical goods, professional services like consulting or development, or anything human-delivered like live 1:1 coaching. Each product needs an eligible tax code. AI-as-a-service tax codes became eligible on June 2, 2026, which matters if you're building an AI SaaS.
• No Connect. Platforms and marketplaces are out. Direct integrations only.
• Eligibility review. Stripe decides access based on factors like business type and geography, and your business has to be based in a supported location.

Sources: Stripe's Managed Payments docs, eligibility page, changelog and pricing page, checked 2026-10-17.

Feature Comparison

Fees as of 2026-10-17. They change, so check current pricing before deciding.

Where Stripe Wins

I'm not going to pretend Polar replaces Stripe for everyone.

Maturity and flexibility

Stripe's API does everything: usage-based billing, metered pricing, complex proration, multiple subscriptions per customer, invoicing, connect/marketplaces, in-person payments. If your billing is anything beyond "flat monthly plans," Stripe has a documented path. Polar covers the common cases well but doesn't match that breadth yet.

Lower headline fees

2.9% + 30¢ vs Polar's 5% + 50¢ default. As of Polar Plans (May 2026), new accounts start at 5% + 50¢ with no monthly fee, and you buy the rate down with a subscription: Pro ($20/mo) drops it to 3.8% + 40¢, Growth ($100/mo) to 3.6% + 35¢, Scale ($400/mo) to 3.4% + 30¢. Non-US cards add 1.5% on every plan. (Organizations created before May 27, 2026 are grandfathered at 4% + 40¢ + 0.5% on subscriptions, but lose that the moment they upgrade.) Current numbers are on Polar's fees page.

So the gap to plain Stripe is wider than it used to be unless you're paying for a higher tier. If you've already solved tax (you're US-only, or you're big enough to afford an Avalara/TaxJar setup), you keep more of each sale with Stripe. The MoR premium only pays for itself if it's replacing real tax-compliance cost or effort.

Ecosystem

Every tool integrates with Stripe. Every Stack Overflow answer exists. Every AI coding assistant knows the Stripe API cold. When something breaks at 1am, you'll find the answer faster. Managed Payments keeps all of that, which is its main selling point.

Where Polar Wins

You stop thinking about tax

This is the reason most indie founders move to an MoR. Selling to the EU as a US solo founder means VAT obligations from your first euro of revenue. Polar absorbs that entirely. Managed Payments does too now, but on a $50 US-card sale Polar costs less. For a one-person company, that peace of mind is worth a lot more than the couple of points of revenue it costs.

Developer experience

Polar is built by developers, for developers, and it's open source. The API is clean, the dashboard isn't bloated, and digital-goods features (license keys, file downloads, benefits/entitlements) are first-class instead of something you bolt on.

Simpler mental model for digital products

If you're selling software, courses, or any digital product to a global audience, Polar's whole design assumes that's what you're doing. Less wiring, fewer edge cases to handle yourself.

Fees: The Real Math

Don't compare the headline percentages in isolation. Compare the total cost of getting paid compliantly.

Here's a $50 sale on a US card, no currency conversion, at the rates I checked on 2026-10-17:

Non-US cards change the picture. Polar adds 1.5% on international cards, another $0.75 on that $50. Creem lists no international card fee. Stripe adds its own surcharge for international cards and currency conversion, on plain Stripe and Managed Payments alike, so check Stripe's pricing page for the current figure.

Sources: Stripe pricing, Polar fees, Creem pricing, all checked 2026-10-17.

So Stripe's MoR is real now, but at $50 it's the most expensive MoR option in this table. Its pull is that you stay inside Stripe: same account, same dashboard, same API.

Plain Stripe is still the cheapest per sale, but that $2.00 doesn't include the time or the accountant it takes to register and file. For a US-only hobby project at low volume, Stripe is cheaper, full stop. For anyone selling globally who'd otherwise need tax registrations, an MoR's premium is often cheaper than the alternative once you count compliance. And at volume, a paid Polar plan narrows the gap further (Polar puts the Pro breakeven at about $1,379/mo in sales).

When to Choose Stripe

• You're US-only and small, or you already have tax compliance handled
• You need advanced billing (usage-based, metered, marketplaces, invoicing)
• You want the largest ecosystem and the most documentation
• You value the lowest possible per-transaction fee over convenience

When to Choose Stripe Managed Payments

• You're already on Stripe and don't want to move customers or rewrite your billing
• Your checkout runs on Stripe Checkout or Payment Links, not Elements
• You sell a digital product with an eligible tax code (SaaS, software, courses, AI-as-a-service)
• Your business is based in a supported location and you're not a Connect platform
• You want Stripe's ecosystem plus an MoR, and you're fine paying more per sale for it

When to Choose Polar

• You sell digital products to a global audience and don't want to touch VAT
• You're a solo founder who'd rather pay a few extra points than become a part-time tax accountant
• You like open-source, developer-first tooling
• Your billing is straightforward subscriptions or one-time digital sales

Why NuxtBeyond Ships With Both

I didn't want to pick for you. NuxtBeyond supports both Stripe and Polar, switchable with a single environment variable:

# .env
PAYMENT_PROVIDER=stripe   # or 'polar'

Behind that switch is a shared PaymentProvider interface, so checkout and the customer portal work the same regardless of which one you use. Plans map to products by name (Stripe via a price lookup key like pro_monthly, Polar via product metadata like { planName: "pro" }), and each provider has its own webhook handler. Start on Stripe, move to Polar when you go global, or run a quick test on both. No rewrite required.

The Stripe side uses Stripe Checkout with Stripe Tax (automatic_tax) turned on. I wrote up how the Stripe Checkout and webhook side works in Nuxt 4 if you want the details. Because it's already Checkout, Managed Payments is something you'd evaluate on top of it, after checking Stripe's eligibility and integration rules first, since it doesn't allow third-party tax integrations and you'd have to change the Checkout session config yourself.

If you're still deciding on the rest of your stack, I've also written a full comparison of Nuxt SaaS boilerplates and a deeper Supastarter vs NuxtBeyond breakdown.

What I'd Do

If you're US-based, just starting, and validating an idea, start with Stripe. It's the default in NuxtBeyond for a reason, and you don't need to overthink it.

The moment you're selling to Europe or the rest of the world and the VAT paperwork starts looming, flip the env var to Polar and let them be the merchant of record. If you're already deep in Stripe and can live with Checkout-only and the higher fee, Managed Payments is the way to get an MoR without moving. Either way, don't marry a billing provider before you know which problem you actually have. That's exactly what the dual-provider setup is built for.

FAQ

Does Polar replace Stripe or work with it?

It replaces Stripe in your code and uses Stripe for your payouts. You integrate Polar's API and checkout instead of Stripe's, and Polar is the merchant of record, so your customers buy from Polar. Your earnings come out through a Stripe Connect Express account you connect to Polar, and Polar's fees page says payout fees are Stripe's. If you're already on Stripe, Polar has a migration guide.

Is Stripe Managed Payments cheaper than Polar?

Not on a $50 US-card sale. Managed Payments adds 3.5% on top of Stripe's 2.9% + 30¢, so a $50 sale costs $3.50, vs $3.00 on Polar Starter and $2.30 on Polar Pro. On small tickets it flips against Polar Starter: below about $14 a sale, Stripe's 30¢ fixed fee beats Polar's 50¢, so Managed Payments comes out a little cheaper (Polar Pro stays cheaper above about $4). On non-US cards both go up: Polar adds 1.5%, and Stripe adds its own international surcharge. The extra you pay Stripe buys you staying inside Stripe.

Creem vs Polar: what's the difference?

Both are merchants of record. Creem charges a flat 3.9% + 40¢ with no monthly fee and lists no international card fee. Polar Starter is 5% + 50¢ plus 1.5% on non-US cards, and its paid plans go down to 3.4% + 30¢ for a monthly fee. For most small sellers Creem is the cheaper one: on a $50 US sale Polar's paid plans only save 5¢ to 35¢ over Creem, so the monthly fee pays off only at hundreds of sales a month, almost all on US cards (about 400 on Pro, and Polar's 1.5% non-US fee wipes out Pro's 5¢ edge once roughly 1 sale in 15 is international). Below that, pick Polar for its open-source, developer-first tooling, not for the fees. Paddle and Lemon Squeezy are the other MoRs worth a look.

Do I still need Stripe Tax with Polar?

No. Polar is the seller, so it handles the tax. Stripe Tax is for plain Stripe, where you're the merchant: it calculates and collects at 0.5% per transaction where you're registered (Tax Basic), but you still register and file yourself. With Managed Payments, tax is part of what Stripe handles as the merchant.

I'm the founder of NuxtBeyond, which ships with both Stripe and Polar. Fees and limits for Stripe, Stripe Managed Payments, Polar and Creem were checked on their own pages on 2026-10-17, and they change. If a number here has moved, send it my way on X and I'll fix the post.