Paddle and FastSpring are the two main players in the Merchant of Record (MoR) market for SaaS. Both handle tax compliance, invoicing, refunds, and financial responsibility toward the end customer. But under the hood, there are significant differences that affect your choice depending on geography, business model, and scale.
Websites: paddle.com | fastspring.com
Architectural Differences
Paddle built its product for SaaS companies from the ground up. Their API is tailored for subscription models: trial periods, upgrade/downgrade, automatic email notifications for trial expiration, and dunning management (overdue payment reminders).
Key component: Paddle.js — a client-side library for embedding checkout directly into your product interface. Overlay checkout on top of your site, no redirect to a third-party page. Conversion to payment is 7-12% higher than redirect checkouts.
FastSpring historically worked with software and games and only recently focused on SaaS. Their API is more powerful in product catalog customization: complex pricing grids, volume pricing, bundles, cross-selling at checkout. But checkout is a redirect to a FastSpring subdomain, and page customization is less flexible than Paddle’s.
Tax Coverage: Who Pays What for You
Both are MoR, both handle taxes. But the details differ.
Paddle: covers VAT (EU), GST (Australia, New Zealand, Singapore, India), US sales tax (all states), Japan consumption tax. But doesn’t cover LATAM taxes (Brazil, Mexico require local legal entities).
FastSpring: same plus — LATAM tax coverage through local legal entities. This is the only significant difference in tax coverage. If your customers are from Brazil — FastSpring. If 90% of revenue comes from EU/US — no difference.
Fees: The Real Math
| Parameter | Paddle | FastSpring |
|---|---|---|
| US transactions | 5% + $0.50 | 5.9% + $0.95 |
| EU transactions | 5% + $0.50 | 5.9% + $0.95 |
| International | 5% + $0.50 | 5.9% + $0.95 |
| Payouts | Monthly | Bi-monthly |
| Minimum payout | None | $500 (!) |
At $10K/mo revenue, the fee difference: Paddle ~$500/mo, FastSpring ~$590/mo. That’s $1,080/year overpayment. Plus FastSpring’s $500 minimum payout: if you have a seasonal business with dips, you might not get your money on time.
Onboarding and Support
Paddle: 1-3 day onboarding. Fill out form → upload company documents → verification → API access. Support — email and chat in the dashboard, 2-8 hour response time.
FastSpring: 1-2 week onboarding. Stricter business verification, detailed product description requested, sometimes requires a call. Support — dedicated account manager on Enterprise plans, for Standard — email with same-day response.
For a startup wanting to launch payments today — Paddle. For enterprise with a compliance department — FastSpring offers a more personalized approach.
Localization and Currencies
| Parameter | Paddle | FastSpring |
|---|---|---|
| Currencies | 20+ | 20+ |
| Local methods | iDEAL, Bancontact, SEPA | iDEAL, Boleto, Konbini, Alipay, WeChat |
| Checkout languages | 10 | 20+ |
| Auto price conversion | Yes | Yes |
FastSpring wins in Asia and Latin America. Paddle is strong in Europe. For a global SaaS with APAC customers — FastSpring. For EU/US focus — Paddle.
Affiliate Programs
Paddle: affiliate program via PartnerStack:
- Commission: 20% of revenue in the first year
- Cookie: 90 days
- At $100K ARR for referral: ~$2K/year your income
- Minimum payout: $10
FastSpring: also via PartnerStack:
- Commission: 20% of FastSpring’s fee (~6% → you get ~1.2% of transactions)
- Cookie: 90 days
- At $100K ARR: ~$1,200/year your income
- Payouts are slower due to longer cycle
For affiliate earnings, Paddle wins: higher percentage of revenue and lower payout threshold.
Final Recommendations
Choose Paddle if:
- You’re a SaaS startup with EU/US customers
- Onboarding speed matters (1-3 days)
- You need a modern API and overlay checkout
- You want to pay less in fees
- Your ARR < $500K
Choose FastSpring if:
- You have customers in LATAM and APAC with local taxes
- You sell software or games, not just SaaS
- You need support for exotic local payments (Boleto, Konbini)
- Your ARR > $500K and you’re okay with longer onboarding
- You need a dedicated account manager
For 80% of SaaS companies, Paddle is the better choice. FastSpring is needed in specific scenarios with broad geography and complex product catalogs.