How to Choose Between Stripe, Square, and PayPal

Compare payment processor fees, features, and business fit to pick the right platform for your transaction volume and sales channels.

1. Calculate your true processing costs. Pull your last 3 months of sales data: total volume, number of transactions, and average ticket size. Factor in both percentage fees (2.6-2.9% for most processors) and per-transaction fees ($0.10-0.30). High-volume, low-ticket businesses get hit harder by per-transaction costs.
2. Map your sales channels to processor strengths. Square dominates in-person retail with integrated POS hardware. Stripe excels at online sales and subscription billing with superior developer tools. PayPal captures customers who prefer checkout without entering card details — roughly 15-20% conversion boost for many online stores.
3. Run the fee math on your actual numbers. Use your transaction data to model monthly costs. For $50K monthly volume at $75 average ticket: Square charges ~$1,450, Stripe ~$1,475, PayPal ~$1,500. The spread narrows as volume grows — enterprise rates kick in around $1M+ annual volume.
4. Factor in integration and operational costs. Calculate setup time, monthly software costs, and staff training requirements. Square's ecosystem costs $60-300/month for POS software. Stripe requires developer resources or third-party integration fees. PayPal plugs into most platforms immediately but offers fewer customization options.
5. Test settlement speed against cash flow needs. Standard settlement is 1-2 business days across all three. Instant deposit costs 1-1.5% extra but solves immediate cash flow crunches. Square offers same-day deposits to Square business accounts. Model the cost of faster access against your working capital requirements.