Stripe vs PayPal vs Square: Best Payment Processor for Startups
Stripe, PayPal, and Square all let you accept money — but they are built for very different businesses. Picking the wrong one costs you in fees, checkout friction, and missed integrations. Here is how to choose the one that fits what you are actually building.
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The quick answer
Stripe wins for online-first businesses, developers, and SaaS. Square wins for in-person retail and food service. PayPal wins when your customers expect to pay with a PayPal balance and trust is a barrier.
Side-by-side breakdown
Stripe: 2.9% + 30 cents per transaction online. Best-in-class API and developer docs. Supports subscriptions, invoicing, usage-based billing natively. Requires some technical setup for custom checkout flows.
PayPal: 3.49% + 49 cents for standard checkout. Higher brand recognition with older and international shoppers. Easy setup with no code required. Checkout redirects can hurt conversion on desktop.
Square: 2.6% + 10 cents in-person, 2.9% + 30 cents online. Free card reader for in-person sales. POS system built-in. Less powerful for subscription or digital product businesses.
When to choose Stripe
Choose Stripe if you are selling online, running subscriptions, building a SaaS product, or want developer-grade control over your checkout. Stripe's billing and revenue recovery tools (retry logic, dunning emails) pay for themselves in reduced churn.
When to choose Square
Choose Square if you have a physical location, do pop-up markets, or run a restaurant or service business with in-person transactions. The free card reader and integrated POS system eliminate the need for separate hardware.
The verdict
Most new online businesses should start with Stripe. Add PayPal as a secondary checkout option if your customer base expects it — conversion data shows 5-15% of buyers prefer to use their PayPal balance. Use Square only if in-person payments are a primary channel.
How to get started
Create a Stripe account at stripe.com — you can have a payment link live in under 10 minutes with no code. Run a $1 test transaction to yourself before your first real customer. If you need in-person capability, order the free Square reader and set up your item catalog before your first event or appointment.
RECOMMENDED TOOLS
Stripe
Best online payment processor — create a payment link in under 10 minutes
Square
Free card reader and POS for in-person and online payments
PayPal Business
Widely trusted — your customers already have an account
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FREQUENTLY ASKED QUESTIONS
Can I use Stripe and PayPal at the same time?
Yes, and many businesses do. Platforms like Shopify and WooCommerce let you enable both as checkout options simultaneously. Stripe handles most transactions while PayPal captures buyers who prefer it.
Does Stripe charge a monthly fee?
No. Stripe's standard plan is pay-as-you-go at 2.9% + 30 cents per transaction with no monthly fee. Stripe Billing for subscriptions and some advanced features have separate pricing.
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