Which payment processor has the lowest fees: Stripe, PayPal, or Square?

Square has the lowest standard card processing rate at 2.6% + $0.30. Stripe is 2.9% + $0.30. PayPal is the most expensive at 3.49% + $0.49. For $10,000/month in sales: Stripe costs ~$319/mo, PayPal ~$384/mo, Square ~$293/mo—Square saves $26–91/month. However, fees are only one factor; integration, features, and acceptance rates matter.

Should SaaS companies use Stripe or PayPal?

Stripe is better for SaaS. Stripe's API is developer-friendly (preferred by engineers), supports recurring billing natively, and has better global support. PayPal is better for marketplaces and sellers who already have PayPal accounts. For subscription SaaS, Stripe is the standard choice—most SaaS platforms integrate Stripe natively because Stripe's billing engine is superior.

Why would anyone use PayPal instead of Stripe or Square?

PayPal advantages: (1) sellers can accept payments WITHOUT a bank account (use PayPal balance), (2) invoicing/recurring payments built-in, (3) brand trust (PayPal checkout is recognized), (4) protection for sellers (chargeback disputes). For small sellers and non-integrated use cases, PayPal is simpler. For custom integrations and SaaS, Stripe wins.

What are the hidden costs beyond processing fees?

Stripe: Free tier exists, chargebacks are $15/each, monthly statements are free. PayPal: Monthly account fees exist (variable rates), chargebacks are $20/each, higher fees for non-USD currencies (4.4%+), invoicing has limits. Square: Hardware costs (readers $10–$300), chargebacks $50/each. Always compare total cost-of-ownership, not just percentage rates.

Stripe vs PayPal vs Square Pricing 2026 — Payment Processor Comparison

Pricing at a Glance

Stripe

API-first payment platform

2.9% + $0.30

Per online card transaction

Standard: 2.9% + $0.30/transaction
ACH (bank): 1% capped at $5
International: 3.9% + $0.30 (varies)
Chargebacks: $15 each

PayPal

Account-based payment service

3.49% + $0.49

Per online transaction (merchant services)

Standard (website): 3.49% + $0.49/transaction
International: 4.4% + variable fee
Monthly Fee: None (varies by volume)
Chargebacks: $20 each

Square

All-in-one payment solution

2.6% + $0.30

Per online card transaction

Standard: 2.6% + $0.30/transaction
ACH (bank): 1% capped at $5
Card Reader: Free (hardware ~$50 upfront)
Chargebacks: $50 each

Cost Comparison: $10,000/Month Revenue

Stripe Processing Cost $319/month ($3,828/year)

PayPal Processing Cost $384/month ($4,608/year)

Square Processing Cost $293/month ($3,516/year)

Cheapest by Year: Square saves $92–1,092

Feature Comparison

Feature	Stripe	PayPal	Square
Online Payments	✓	✓	✓
In-Person (Card Reader)	Stripe Terminal only	✗	✓ Native
Recurring Billing / Subscriptions	Native (best)	PayPal Billing Plan	Square Subscriptions
API Quality (Developer Experience)	Excellent	Good	Good
Global Payments (100+ countries)	✓ All major regions	✓ All major regions	60+ countries
Settlement Speed	1 business day	1 business day	1 business day
Invoicing Included	Via Invoice API	✓ Native	✓ Native
Multi-currency Support	140+ currencies	100+ currencies	10+ currencies
Account Required to Receive	Bank account only	PayPal account optional	Bank account only
Marketplace / Platform Support	Excellent (Connect)	Excellent (Adaptive)	Growing support

Verdict Boxes

💳 STRIPE — Best for SaaS and API-First Companies

Use Stripe if: You're building a SaaS platform with recurring billing, need advanced developer APIs (webhooks, CLI, webhooks, custom flows), or want the strongest recurring billing engine. Stripe's subscription support is unmatched. Stripe's 2.9% rate is middle-of-the-road but worth it for API quality. Stripe is the standard for YC startups and VC-backed SaaS.

☑️ PAYPAL — Best for Sellers and Non-Technical Integrations

Use PayPal if: You're a seller/reseller and don't have a traditional business bank account (PayPal balance works). You want invoicing built-in without custom API work. You have existing PayPal customers expecting PayPal Checkout. PayPal's 3.49% + $0.49 is expensive, but the brand trust and simplicity appeal to non-technical users. Avoid for SaaS.

⭐ SQUARE — Best for In-Person + Online Hybrid (and cheapest rate)

Use Square if: You need both online and in-person payments (physical card readers). You're a small retail business or market vendor. You want the lowest processing rate (2.6%) without sacrificing features. Square's $50 card reader is the cheapest hardware option. Square is weaker for SaaS but excellent for hybrid retail/e-commerce.

How to Choose

For SaaS with subscriptions: Stripe. No competition. The recurring billing engine is world-class.

For marketplace/multi-vendor: Stripe Connect > PayPal Adaptive > Square (by feature depth).

For retail + online: Square is best (in-person + online in one platform).

For sellers without bank accounts: PayPal (only processor that accepts PayPal balance as settlement).

For lowest fees: Square at 2.6% + $0.30 (saves ~$70–100/month on $10K revenue).

Frequently Asked Questions

Can you use Stripe and PayPal together?

Yes. Many platforms offer both: customers choose their preferred payment method at checkout. Stripe + PayPal combined coverage is nearly universal for US/UK transactions. Just manage two sets of fees and settlement accounts.

Which processor is most trusted by customers?

PayPal and Stripe have equal trust. PayPal has brand recognition (older, ubiquitous). Stripe is trusted by developers and tech-forward customers (minimal friction). Offering both at checkout maximizes conversion.

Are there hidden monthly fees?

Stripe: No monthly fees (except chargeback disputes at $15/each). PayPal: No monthly fees on Standard (higher rates on some tiers). Square: No monthly fees. All three have free accounts and charge only per-transaction.

What if I'm outside the US?

Stripe supports 140+ countries (best global reach). PayPal supports 100+ countries. Square is limited (60+ countries, not all with same features). If you're outside the US, Stripe is typically the best choice.

Which processor is easiest to integrate?

For developers: Stripe API is the most documented and developer-friendly. For non-coders: PayPal's checkout button is simplest (copy-paste). For hybrid: Square has good plugins for e-commerce platforms (Shopify, WooCommerce).

Never miss payment processor pricing updates

All three processors adjust fee rates, add new features, and change terms quarterly. Stripe has raised rates twice in 2026. PayPal adds new minimum fees. Square's rate is competitive but monitor for changes.