Stripe vs Paddle vs Custom Billing for SaaS

Billing is the part of a SaaS product that founders underestimate most consistently. It looks like a solved problem (just use Stripe, right?) until you're six months in and you need usage-based billing with volume tiers, per-seat pricing that changes mid-cycle, prorated downgrades, revenue recognition for annual plans, and tax compliance for 40 countries. Then "just use Stripe" becomes a multi-month engineering project anyway, except you're building it on top of a payment primitive rather than a billing platform.

Here is an honest comparison of the three realistic options: Stripe (Billing), Paddle (Merchant of Record), and building a custom billing engine.

What Each Option Actually Is

Stripe Billing is a subscription management layer on top of Stripe's payment processing. You handle merchant of record responsibilities: you collect the customer's money, you remit tax in each jurisdiction, you handle chargebacks, you manage PCI compliance. Stripe gives you subscription primitives and a dashboard.

Paddle is a Merchant of Record (MoR). Paddle charges your customers on your behalf, handles all sales tax and VAT globally, manages refunds and chargebacks, and remits tax to the relevant authorities. You receive net revenue after Paddle's fees. Paddle also handles EU VAT for digital goods, which is where many SaaS founders get caught by compliance they didn't expect.

Custom billing means you build subscription management, invoicing, dunning, and revenue recognition on top of a payment processor (Stripe, Braintree, or similar). You own the logic completely; you are responsible for everything Paddle would otherwise handle.

Feature and Trade-off Comparison

When Stripe Billing Makes Sense

Stripe Billing is the right choice for most early-to-mid-stage SaaS products, particularly if:

• Your primary market is the US, where sales tax complexity is lower for software (though still non-trivial for some states)
• You need granular control over subscription logic
• You have engineering resource to build on top of Stripe's primitives
• You want to own the full checkout experience

The trap is treating Stripe as a complete billing solution out of the box. Stripe gives you the payment and subscription rails, but revenue recognition, tax filing, and complex dunning sequences require either additional products (Stripe Revenue Recognition costs extra) or custom code. Plan for this work upfront.

When Paddle Makes Sense

Paddle's Merchant of Record model is genuinely valuable for SaaS businesses selling to customers globally, especially into the EU, where VAT on digital goods is required per-country. If you're a UK or US company selling SaaS to European customers without proper VAT registration, you have a compliance problem. Paddle makes that problem disappear, at a cost.

Paddle makes sense if:

• You want to launch globally without hiring a tax lawyer and registering for VAT in 30 countries
• You sell primarily to individuals or SMBs (Paddle's model works better for self-serve than enterprise)
• Simplicity is more valuable to you than the lowest possible transaction cost
• Your pricing model fits within Paddle's supported structures (it's less flexible than Stripe for complex metered billing)

The 5% fee sounds steep until you calculate the actual cost of tax compliance, chargeback management, and PCI audits across multiple jurisdictions. For many businesses, Paddle is cheaper in total cost than the alternatives.

When Custom Billing Makes Sense

Building a custom billing engine is the right answer in a narrow set of situations:

• Your pricing model is genuinely unusual: usage-based with multiple dimensions, complex metering, credits and drawdown systems
• You process high enough volume that percentage-based fees are a significant cost
• You need tight integration with internal systems (ERP, revenue recognition, CRM) that off-the-shelf solutions can't accommodate
• You're in a regulated industry (financial services, healthcare) with specific invoicing and audit requirements

Custom billing is not the right choice for an early-stage startup. The upfront engineering cost is real: dunning, proration, upgrade/downgrade mid-cycle, invoice generation, revenue recognition, and failure handling are all non-trivial. Build it when the economics justify it, not at launch.

The Hybrid Approach

Many mature SaaS companies end up on a hybrid model: Stripe Payments as the payment processor, with a custom subscription management layer on top that handles the business logic, and either manual tax filing or a tax service (Avalara, TaxJar) for compliance. This gives you maximum control over pricing logic without rebuilding payment processing from scratch.

For companies with meaningful revenue (typically from mid-seven-figures ARR upward), the per-transaction savings from Stripe's lower processing fees versus Paddle's MoR percentage can be substantial.

How Anointed Coder Approaches SaaS Billing

Our SaaS development team implements billing systems across the full spectrum: Stripe Billing for straightforward subscription models, Paddle integrations for globally-facing products, and custom billing engines for products where the off-the-shelf options are genuinely insufficient.

We build the dunning logic, proration calculations, and revenue recognition flows that make billing work correctly at scale. Milestone pricing means you see a working billing integration before you fund the next phase. You own all code and IP on payment.

The Short Version

Stripe Billing is the right default for most SaaS products: flexible, well-documented, and powerful enough for most pricing models. Paddle makes sense when global tax compliance is your biggest concern and you'd rather pay a percentage than manage it yourself. Custom billing is only justified at significant revenue or with genuinely unusual pricing requirements. The mistake to avoid is treating any of them as zero-engineering solutions: all three require real implementation work to do correctly.