
Stripe vs. Square vs. PayPal for Small Businesses: Fees, Payouts, Hardware, and the Effective-Rate Math
Stripe is cheapest online at 2.9% + 30¢, Square wins in person with free POS and next-day payouts, and PayPal costs most but converts best.
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Card network dispute and chargeback monitoring, fees, and merchant compliance

Stripe is cheapest online at 2.9% + 30¢, Square wins in person with free POS and next-day payouts, and PayPal costs most but converts best.

Visa gives card-present holds 5 days and card-not-present 10; Mastercard 7; Amex 7; Discover 10 — capture or reverse before the clock runs out.

About 80% of off-invoice U.S. retail deductions are shortage claims, many invalid — win with proof-of-delivery packets filed in each retailer's window.

Shopify payouts are net settlements, not revenue — book gross sales, split every fee, and stage chargebacks; your 1099-K reports the gross to the IRS.

Card-testing attacks surged 175% in 2026 — bots validating stolen cards on your checkout. Velocity limits, CAPTCHA, and CVC checks stop the fees and disputes.

Visa requires express consent, instant terms, a 7-day pre-billing reminder, and easy online cancel for free trials — miss one and the dispute is unwinnable.

A MATCH listing follows a terminated merchant for five years and nobody has to tell you. Here are the reason codes, the high-risk cost, and three paths off.

A rolling reserve is your revenue held as restricted cash, not a fee: book the gross sale, debit Funds Held in Reserve, and post releases as asset transfers.

Stripe deducts fees, holds refunds, and settles net, so your bank deposit never equals your revenue. Book the gross sale, expense the fee separately, and treat each payout as a transfer from your Stripe balance, then reconcile to Stripe's balance in under 30 minutes a month.

Visa's Acquirer Monitoring Program (VAMP) merges TC40 fraud reports and TC15 disputes into one ratio, and the 2026 merchant "excessive" threshold dropped to 0.9%. This guide shows exactly how the ratio is calculated and gives small merchants a prevention and gross-to-net bookkeeping playbook to stay under it.

ASC 606 treats a right of return as variable consideration, so an $80,000 sales month with a 9% historical return rate is $72,800 of net revenue, a $7,200 refund liability, and a recoverable-inventory asset — not $80,000 booked as final. This guide shows how to build a category-weighted reserve from 12 months of your own data, flag the 5 to 10% of buyers who generate 30 to 40% of returns, and apply graduated account limits that stay documented and defensible.

Four competing agentic commerce protocols — Google's UCP, OpenAI's ACP, Alibaba's trust protocol, and Stripe's MPP — launched within months of each other in early 2026. What small online sellers should actually do about machine-readable catalogs, automatic enrollment, and reconciling revenue across four new checkout channels.