Most small SaaS teams start with Stripe because it works and doesn't require a new vendor relationship. But somewhere between $10k and $50k MRR, Stripe Billing stops moving at the same speed your business does. Usage-based pricing becomes cumbersome. Tax compliance across regions fragments your invoices. Dunning workflows eat time your team could spend selling. At that inflection point, you're choosing between living with friction or switching to Zuora, Recurly, or Paddle—each solving different problems. We tested each platform on five real constraints that matter to growing SaaS teams: usage-based pricing implementation, invoice customization for compliance, automated dunning (retry logic for failed payments), regional tax handling, and payment method support in Southeast Asia and beyond. Here's where each wins and where Stripe's simplicity actually holds. When Stripe Billing is genuinely enough Stripe Billing works best for two specific scenarios: flat-rate subscriptions under $50k MRR, and teams that can tolerate good-enough tax compliance. If your pricing model is simple—one or two subscription tiers, maybe a small add-on for heavy users—Stripe Billing moves fast. Setup takes a day. You're invoicing immediately. Customer portal works. Webhooks integrate with your CRM or accounting system. The dashboard shows churn, MRR, and retention without extra tooling. For a bootstrapped team with straightforward subscriptions, this is productivity. Cost matters too. Stripe Billing has no per-customer fee, no setup cost, no monthly minimum. You pay 2.9% + $0.30 per successful transaction, plus a small percentage if you use Stripe Tax (0.5% of transaction volume). At $20k MRR, that's roughly $600–800/month in pure Stripe fees. Zuora's cheapest plan starts at $2,000/month and assumes you'll eventually move toward their enterprise offering. Recurly's entry point is similar. So if you're under $30k MRR with a simple model, Stripe's math is unbeatable. Tax compliance is where this breaks. Stripe Tax calculates and files sales tax in the US (all 50 states), EU VAT, and a handful of others. But GST in Southeast Asia, Malaysia's SST, Indonesia's VAT—Stripe Tax either doesn't support them or requires your team to handle calculations manually. If your customers are mostly US-based and you're not selling into regulated industries, Stripe is fine. If you're invoicing across SEA, you'll manually override tax on most invoices. Usage-based pricing: where Stripe becomes a workaround Stripe Billing can meter usage. You send events to Stripe, it tallies consumption, and invoices accordingly. In theory, this covers usage-based SaaS. In practice, it's rigid. Stripe's usage-based feature doesn't let you: Set tiered usage (e.g., $0.10 per API call for the first 1M, then $0.05 after). You can only create separate meter-based plans. Combine flat + usage fees without manual workarounds. You'd typically invoice the flat fee separately and use usage metering only for overages, which fragments your invoices. Run historical usage reports by customer easily. You'll export raw events and build your own reporting layer. Prorate mid-cycle changes flawlessly. If a customer upgrades and their usage changes in the same cycle, the math often requires manual adjustment. Zuora and Recurly were built for usage-based SaaS. Both let you define tiered pricing in the UI, combine flat + usage fees in one invoice, and pull historical usage by customer without exporting raw data. Paddle added usage-based pricing in 2023, but it's newer and less battle-tested for complex scenarios. If your product is consumption-based (cloud compute, API tokens, storage, calls), start with Zuora or Recurly even if you're small. The cost difference ($2k/month vs. $600/month in Stripe fees at $20k MRR) is quickly recouped by not building custom billing logic. If your usage-based pricing is simple (one-tier, no complex tiers), Stripe's metering works. Invoice customization and tax compliance across regions This is where dedicated platforms separate themselves from Stripe. Zuora and Recurly both let you customize invoice templates per region, customer, or product line. You can add regional tax IDs, reorder line items, include local compliance text, and generate forms required by tax authorities (like Indonesia's e-Faktur or Malaysia's MyInvois data). Their UIs make this visual; you don't write HTML templates. Stripe lets you customize invoices, but it's clunky. You're editing PDF templates in code or paying a developer to build a custom invoice generator. If you need 10 different invoice formats for 10 regional markets, you're maintaining 10 templates manually. Stripe doesn't have native support for e-Faktur numbers, MyInvois reference IDs, or regional tax exemption fields. Paddle sits in the middle. It handles US and EU tax well, including reverse-charge VAT for B2B EU sales. But regional nuance outside Europe and North America is thin. If you're selling into Malaysia, Indonesia, Th