Blog

Visa and Mastercard chargeback monitoring for SaaS: understand VAMP, ECP, fraud thresholds, dispute ratios, assessments and how to reduce exposure.

European payment methods for SaaS: compare SEPA Direct Debit, iDEAL, Wero, Bancontact and Giropay, including recurring billing and country coverage.

SEPA Direct Debit for SaaS: compare Core vs B2B, payment fees, settlement times, refund rules, and recurring billing with cards.

Learn how EU VAT works for SaaS and digital services, including OSS, VAT thresholds, reverse charge, customer location rules, and Merchant of Record compliance.

Adding auth and billing to a SaaS means seven pieces: identity, checkout, subscription state, entitlements, webhooks, dunning and tax. Most plan for two.

Selling globally makes you liable for VAT, chargebacks, PCI scope and consumer protection. How a merchant of record moves that liability, and what stays put.

PSD3 and the PSR for SaaS: the 2028 timeline, SCA changes, open banking rules, fraud controls, and what your payment provider needs to handle.

A step-by-step guide to EU VAT OSS registration for non-EU SaaS companies, including eligibility, deadlines, quarterly filings, VAT rates, and records.

Learn how to validate EU VAT numbers for SaaS customers using VIES, handle renewals and failed checks, and fix VAT details added after payment.

Learn when European SaaS companies owe US sales tax, how economic nexus works, which states tax SaaS, and when a Merchant of Record helps.

Coding agents scaffold auth before a human reviews it. Claude Code writes it from scratch 48% of the time. What that changes for Clerk, Auth0 and NextAuth.

Auth providers with built-in billing compared: Clerk, Kinde, Polar, Dodo and tiun on entitlements, 3DS support, and who handles VAT as seller of record.