How do I compare payment processors fairly?

Compare on five things: effective rate at your card mix and ticket size, contract length and termination fee, settlement time, hidden fees (PCI, monthly minimum, batch, statement), and approval rate for your industry. Sticker rates rarely match what you actually pay.

Is Stripe cheaper than Square?

It depends on your channel mix. For online-only and recurring payments under $25,000 monthly, Stripe and Square are roughly equivalent. For in-person retail, Square is usually cheaper because Stripe's hardware ecosystem is thinner. Above $80,000 monthly, both are beaten by interchange-plus alternatives like Helcim or Stax.

Which payment processor has the lowest fees in 2026?

Below $10,000 monthly volume, Helcim's interchange-plus pricing is the standard answer. Between $25,000 and $250,000 monthly, subscription processors like Stax or negotiated IC++ contracts win. Above $250,000 monthly, custom IC++ contracts beat anything advertised publicly.

Should I use PayPal or Stripe for online payments?

Stripe wins on developer tooling, subscription billing, and global routing. PayPal wins on consumer trust at checkout, especially for first-time buyers. Many high-converting checkouts run both: Stripe as the primary processor and PayPal as an alternative button.

How long does it take to switch payment processors?

For an online merchant on a standard processor, switching takes 1 to 3 weeks: underwriting (2 to 7 days), integration testing (3 to 5 days), and DNS or webhook updates. For complex verticals, 2 to 6 weeks is realistic. Most contracts have a termination fee, calculate the breakeven before you start.

Compare Payment Processors: Real 2026 Rates from $10K to $1M Monthly

Updated May 2026. Compare 15 U.S. payment processors at real effective rates from 2.32% (Adyen, enterprise) to 3.07% (PayPal). Barak Bachar reconciles every rate against live merchant statements before publishing. Pick by volume tier and transaction mix in under five minutes.

Updated May 2026

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12 Payment Processors at a Glance — 2026 Real Rates

Published 2026 rates for the U.S. market. IC = interchange (the card-network fee, typically 1.3-2.3% — passed through). For your effective rate, use the fee calculator.

Processor	Online rate	In-person rate	Monthly fee	Best for
Stripe	2.9% + $0.30	2.7% + $0.05	$0	Online-first, developer teams
Square	2.9% + $0.30	2.6% + $0.10	$0	Retail / POS, $0-$80K monthly
PayPal	2.99% + $0.49	2.29% + $0.09	$0	Checkout conversion (5-10% lift)
Helcim	IC + 0.40% + $0.08	IC + 0.30% + $0.08	$0	Transparent IC-plus, >$25K/mo
Stax (FattMerchant)	IC + $0.18	IC + $0.10	$99-199	Subscription pricing, >$80K/mo
Payment Depot	IC + 0.20%	IC + 0.15%	$79-199	High volume members, >$100K/mo
Clover	2.3-3.5% + $0.10	2.3-2.6% + $0.10	$0-$60	All-in-one restaurant / retail POS
Authorize.net	2.9% + $0.30	N/A (gateway)	$25 + $0.10/tx	Gateway-only, BYO processor
Braintree	2.59% + $0.49	2.29% + $0.09	$0	Subscription + marketplace
Adyen	IC + 0.60% + $0.13	IC + 0.50% + $0.13	Custom	Enterprise / global / >$1M/mo
Shopify Payments	2.4-2.9% + $0.30	2.4-2.7% + $0.00	Plan-bundled	Shopify stores only
Worldpay	Negotiated	Negotiated	Custom	Mid-market enterprise, >$500K/mo

Rates pulled from each processor's public pricing page as of May 2026. Custom-negotiated rates differ. Effective rate (what you actually pay) usually runs 0.20-0.60% above sticker due to card mix and hidden fees.

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