Tool Review
Open-source merchant-of-record billing platform for software, SaaS, AI products, and developer businesses. A modern payment option when you want MoR benefits with transparent, developer-friendly billing primitives.
Software and AI products that want merchant-of-record handling without a legacy-feeling checkout stack.
Pricing
Polar combines merchant-of-record transaction fees with optional monthly plans that lower the per-transaction rate as sales volume grows.
New software sellers and early launches
Start here
5% + 50¢
/ transaction
Merchant-of-record billing with no monthly platform fee for new organizations.
Sellers with early traction
$20
/ month
Lower transaction fee and prioritized support when volume justifies the monthly plan.
Growing software businesses
$100
/ month
Further fee reduction for higher monthly sales volume.
Higher-volume software businesses
$400
/ month
Lowest published transaction rate and stronger support access.
Capabilities
Comparison-friendly facts
Merchant of record
Yes. Polar is positioned around MoR handling for software and AI businesses.
Pricing transparency
Strong. The May 2026 plan update publishes clear fee tiers instead of hiding volume discounts behind sales.
Platform maturity
Promising but newer than Stripe and less universally battle-tested.
Software fit
Strong for internet-native software, AI products, subscriptions, and developer businesses.
AI builder fit
Good when your app can use Polar as the billing authority and keep entitlement sync explicit.
Recent updates
Polar’s new Starter rate applies to organizations created on or after May 27, 2026, while older organizations remain grandfathered on Early Member pricing unless they upgrade.
Source →Polar added optional paid plans with lower published transaction fees and prioritized support for sellers with enough volume to justify the monthly plan cost.
Source →Polar is interesting because it is aimed at the kind of internet business a lot of indie builders actually run: software, AI products, subscriptions, credits, and digital goods.
It is not trying to be a generic payment processor with a thousand enterprise tentacles. It is trying to make selling software less annoying.
For the Add Payments guide, Polar is the modern merchant-of-record alternative worth tracking closely.
The pitch is straightforward:
That combination makes it more than “another checkout tool.”
Stripe is still the safer default when you need maximum payment feature depth, integrations, and battle-tested edge-case coverage.
Polar is better framed as a strong fit for the right shape of product, especially when merchant-of-record handling is a real benefit and the business model fits its product surface cleanly.
If your monetization is straightforward, software-native, and you care about tax/compliance simplification, Polar is genuinely worth considering.
If your billing model is weird, heavily customized, or already deeply integrated with Stripe’s ecosystem, do more homework before switching.
| polar.sh | Polar pricing | |
| polar.sh | Introducing Polar plans | |
| polar.sh | Polar docs | |
| polar.sh | Merchant of Record |
Related Paths
Taking payments sounds simple until you hit checkout flows, subscriptions, failed payments, refunds, and taxes. These tools help you avoid rebuilding all of that yourself.
Anonymous traffic is useful, but it does not give you anyone to talk to later. An email list does.
Developer-focused payments platform for checkout, subscriptions, invoices, usage billing, tax, and revenue workflows. The power default when payment state needs to become real product logic.
Merchant-of-record checkout, subscriptions, software licensing, and digital product sales for indie software businesses. A friendlier path when you want to sell software without assembling a full Stripe billing-and-tax machine yourself.
