The category confusion that costs merchants money
Most e-commerce merchants shopping for a "payment gateway" end up comparing Stripe against Authorize.Net without understanding that they're looking at fundamentally different products with different cost structures.
Stripe is a vertically integrated payments company — it acts as the gateway, the processor, and the risk manager in one platform. NMI is a white-label gateway that lets you connect any of dozens of processors behind it. Authorize.Net is a gateway owned by Visa — the incumbent, battle-tested, with 400,000+ merchants and a bring-your-own-processor option that most users ignore.
The right choice depends on your volume, your risk profile, your technical requirements, and whether you want flexibility or simplicity. Here's the breakdown.
Stripe: excellent product, expensive at scale
Stripe's standard rate for e-commerce is 2.9% + $0.30 per transaction. For a merchant doing $25,000/month at an average ticket of $50, that's $725 + $150 in per-transaction fees = $875/month, or a 3.5% effective rate. That is significantly above what a merchant with that volume should be paying on interchange plus.
At $25,000/month with an average interchange rate of 1.7% (a reasonable estimate for a typical e-commerce card mix per Visa's published rates), a merchant on interchange plus at 0.30% + $0.15 over interchange pays approximately $500 + $75 = $575/month. The delta is $300/month, or $3,600/year.
That said, Stripe earns its premium in several areas:
Stripe's genuine advantages:
- Developer experience is genuinely superior — the API documentation, SDKs, webhooks, and testing tools are best-in-class.
- Fraud tooling (Stripe Radar) is sophisticated and included.
- Instant payout options, international payments, and multi-currency support are native.
- No need to manage a separate merchant account — underwriting is automatic.
- Billing and subscription management (Stripe Billing) is excellent for SaaS.
Stripe is the right answer for startups pre-product-market-fit, developers building complex payment flows, SaaS companies with global subscribers, and marketplaces using Stripe Connect. It is almost never the right answer for a mature merchant doing $50,000+/month who has time to optimize.
Stripe also isn't an option for merchants in high-risk categories. See high-risk merchant processing for how to approach that.
Authorize.Net: the incumbent, underused correctly
Authorize.Net, now owned by Visa, has been the market-standard gateway for card-not-present transactions since 1996. It supports virtually every processor, integrates with virtually every shopping cart platform, and has the deepest documentation of any gateway on the market.
The critical decision: use it in bring-your-own-processor mode, not the default all-in-one mode.
In all-in-one mode, Authorize.Net acts as both gateway and processor at flat rates of approximately 2.9% + $0.30 — same as Stripe, essentially. In bring-your-own-processor mode, you pay $25/month + $0.10/transaction to Authorize.Net and negotiate your interchange plus pricing separately with a processor or reseller. At $50,000/month, the difference between the two modes is approximately $650/month.
Authorize.Net wins when:
- Your shopping cart has native Authorize.Net integration and you want zero dev work.
- You're working with a processor that requires Authorize.Net as a condition of their best pricing tier.
- You process card-not-present volume that doesn't require advanced tokenization or complex recurring billing logic.
- You want a gateway with 25+ years of stability and the deepest third-party integration ecosystem.
Authorize.Net's weaknesses:
- The back-office dashboard is dated. It's functional, not pleasant.
- Advanced recurring billing requires their ARB (Automated Recurring Billing) module, which is less flexible than Stripe Billing or NMI's recurring tools.
- No native advanced fraud scoring beyond basic AVS/CVV — you'll need a separate fraud tool if chargeback rates are a concern.
NMI: the reseller-designed gateway
NMI (Network Merchants Inc.) was built for the ISO/reseller distribution model. Where Authorize.Net has one owner (Visa) and one set of features, NMI is designed to be white-labeled and customized — most resellers have their own branded version. That distribution model means NMI's pricing is set by the reseller, not published publicly, but it typically runs $15–$25/month.
NMI wins when:
- You need high-risk boarding. NMI supports a much broader processor network including high-risk acquirers. If you're in CBD, nutraceuticals, subscription, or adult content, your options with Authorize.Net are narrow. NMI opens the full ecosystem.
- You have complex recurring billing needs. NMI's Customer Vault and recurring billing logic is more configurable than Authorize.Net's ARB module.
- Your developer needs API flexibility. NMI's Direct Post API and Transaction API both offer more programmatic control than Authorize.Net's API for complex use cases.
- You want a white-labeled experience for your customers (resellers building payment solutions for clients).
NMI integrates with your existing merchant account — pair it with the right acquirer for your MCC and risk profile, and the gateway cost is a minor line item. View our gateway options page for the processors we commonly pair with NMI.
The decision matrix
| | Stripe | Authorize.Net | NMI | |---|---|---|---| | Best for | Startups, SaaS, dev-heavy | Established e-com, cart integrations | High-risk, reseller, complex billing | | Pricing model | Flat 2.9% + $0.30 | $25/mo + $0.10/txn (BYOP mode) | ~$15–$25/mo (reseller set) | | High-risk support | No | Limited | Yes | | Developer experience | Excellent | Good | Good | | Recurring billing | Excellent | Moderate | Strong | | Processor flexibility | None (Stripe is the processor) | Wide (BYOP mode) | Wide | | Contract | None | None | Varies by reseller |
The take
For most e-commerce merchants above $25,000/month, the question is not Stripe vs. Authorize.Net — it's whether to use Authorize.Net or NMI in bring-your-own-processor mode with an interchange plus account. Stripe is a premium-priced product worth its cost at early stage and for technically complex use cases. At maturity, it's a generous donation to Stripe's margins.
NMI edges out Authorize.Net for high-risk merchants and anyone building recurring billing logic. Authorize.Net wins on simplicity and cart compatibility for standard e-commerce.
The gateway is only one half of the equation. The pricing with your processor is the other half — and it matters more. Review our pricing structure or reach out and we'll model the full cost of your current setup against alternatives.
This is general business information, not legal or financial advice.