Which is cheapest: Stripe, Square, or PayPal?

All three charge similar base rates. Stripe: 2.9% + 30¢ online. Square: 2.6% + 10¢ in-person, 2.9% + 30¢ online. PayPal: 3.49% + 49¢ standard checkout. For online businesses, Stripe and Square are comparable; PayPal is typically the most expensive. Square is cheapest for in-person retail transactions.

What is the main difference between Stripe, Square, and PayPal?

Stripe is developer-first payment infrastructure for online and SaaS businesses. Square is a complete business platform with POS hardware, inventory, and payroll for retail/restaurants. PayPal is a consumer payment network with 400M+ users offering brand trust for buyers. Each serves different primary use cases.

Which payment processor is best for SaaS companies?

Stripe is the overwhelming choice for SaaS. Stripe Billing handles subscriptions, metered billing, per-seat pricing, and prorations. PayPal and Square have limited subscription tooling. Nearly all SaaS startups use Stripe as their primary payment processor.

Should I offer Stripe, Square, and PayPal on my checkout?

Offering PayPal alongside Stripe can increase conversions by 5-10% for B2C stores, since some buyers prefer not to enter card details. Square is better kept as an in-person POS system, not typically combined with Stripe online. For e-commerce: Stripe for cards + PayPal as an alternative is the most common setup.

Stripe vs Square vs PayPal Pricing 2026

Payment Processing Fees (US Card Transactions)

Provider	Card-Present	Card-Not-Present	International	Monthly Fee
Stripe	2.7% + $0.05	2.9% + $0.30	2.9% + $0.30 (varies by country)	$0
Square	2.6% + $0.10	2.6% + $0.30 (higher for 3D secure)	2.9% + $0.30	$0
PayPal	N/A (no in-person)	2.9% + $0.30	3.99% + $0.49	$0

All three have $0 monthly fee. No setup cost. No hidden charges (but can vary by country/method).

Cost at Different Transaction Volumes

Scenario 1: Small Store ($5K/month revenue)

Stripe (2.9% + $0.30) $165/month

Square (2.6% + $0.30) $156/month

PayPal (2.9% + $0.30) $165/month

Scenario 2: Growing SaaS ($50K/month revenue)

Stripe (2.9% + $0.30) $1,520/month

Square (2.6% + $0.30) $1,430/month

PayPal (2.9% + $0.30) $1,520/month

Scenario 3: Enterprise ($500K/month revenue)

Stripe (2.9% + $0.30, custom rates) ~$14,000/month + negotiable

Square (2.6% + $0.30, custom rates) ~$13,100/month + negotiable

PayPal (2.9% + $0.30, custom rates) ~$14,000/month + negotiable

Feature Comparison

Feature	Stripe	Square	PayPal
Recurring Billing	✓ (excellent)	✓ (via Square Subscriptions)	✓
Invoicing	✓ (Stripe Invoicing)	✓ (Square Invoices)	✓ (basic)
POS/In-Person	✓ (Stripe Terminal)	✓ (Square Reader, best-in-class)	Limited
Payouts	Next day, $0	Same day (premium), next day free	Next day, $0
Developer API	✓ (best-in-class docs)	✓ (good)	✓ (basic)
International	✓ (100+ countries)	Limited (US, Canada, AU, JP, SG)	✓ (100+ countries)
Multi-currency	✓ (excellent)	Limited	✓

When to Choose Each Provider

✓ Choose Stripe if:

You're building SaaS with recurring billing
You need excellent API documentation and developer support
You operate internationally (100+ countries supported)
You need advanced features like Connect (marketplace payments)

Best for: SaaS, platforms, global businesses, developers

✓ Choose Square if:

You have in-person POS needs (Square Reader is industry-leading)
You run a retail, restaurant, or service business
You're in US, Canada, Australia, Japan, or Singapore
You want simple invoicing + POS in one platform

Best for: Retail, restaurants, local services, small businesses

✓ Choose PayPal if:

You want to accept PayPal, credit cards, and ACH in one account
You operate internationally but want a simpler platform
You already have established PayPal business presence
You want invoice + subscription support without custom APIs

Best for: Small businesses, invoicing-heavy workflows, non-tech teams

Bottom Line

For most SaaS/tech: Stripe. Best API, most flexible for subscriptions, best international support.

For retail/POS: Square. Industry-leading hardware (Reader), simplicity, great invoicing.

For simplicity: PayPal. All-in-one, no tech debt, widely trusted.

Cost difference: At small transaction volumes (<$10K/mo), Square saves ~5% vs Stripe/PayPal. Difference diminishes at scale.

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