Last updated
Usage-based billing for AI and SaaS — event ingestion, subscription tiers, and global tax compliance at 4% flat fee.
Complete payment solution with Next.js integration, usage-based billing, automated tax handling, and merchant of record services for digital products.
Polar is a developer-first billing platform for AI companies and SaaS products, providing usage-based billing with event ingestion that tracks API calls, token consumption, and any custom metric. With open-source roots and framework adapters for Next.js, BetterAuth, and TypeScript, it delivers production-ready billing in hours rather than weeks.
The platform acts as a global Merchant of Record, handling VAT and GST compliance and chargeback management so developers focus on the product, not tax filings. Subscription tiers, one-off purchases, and customer lifecycle management are fully automated, with feature flags tied directly to subscription status.
Key benefits:
- Usage-based billing with event ingestion for API calls and token tracking
- Subscription tier management with automatic feature flag assignment
- Merchant of Record service that files taxes globally on your behalf
- Global VAT/GST compliance across all major jurisdictions
- One-off purchases alongside recurring subscription products
- Open-source SDKs for Next.js, TypeScript, and BetterAuth integration
Polar is a Swedish company with a transparent, developer-friendly pricing model of 4% + $0.40 per transaction with no monthly or setup fees. As a global Merchant of Record, it handles EU VAT compliance for European sales alongside international tax jurisdictions, making it straightforward for European developers to monetise software globally.
Categories
European alternative to
Head-to-head comparisons
See how Polar stacks up side-by-side against the non-EU incumbent on jurisdiction, GDPR, pricing, and features.
Similar European alternatives
Spendesk
Unify corporate cards, expenses, invoices, procurement and budgets with real-time control and automatic receipt capture for finance teams.
PayFit
Automate payroll and HR with country-specific compliance built in: payslips, declarations, leave, expenses and an AI copilot for your questions.
Qonto
Business account, invoicing, expense management and financing in one platform built for European freelancers, startups and SMEs.
Adyen
One platform for payments, data, and financial products — 150+ currencies, 200+ payment methods, built to scale globally.
Mollie
Online and in-person payments for European SMEs — iDEAL, SEPA, cards, and recurring billing through one clean API.
Payplug
French payment gateway with native Cartes Bancaires support — 92.5% acceptance rate, frictionless 3DS, omnichannel dashboard.