Taking payments on your website requires three things working together: a payment gateway that encrypts your customer’s card details, a payment processor that moves the money, and a place for those funds to land before they reach your bank account. The good news is that modern payment platforms bundle all three into a single service, so you don’t need to set up each piece separately. Here’s how to choose the right approach and get it running.
How Online Payments Actually Work
When a customer enters their card number on your site, the transaction passes through several layers before money hits your account. A payment gateway acts as the digital checkpoint, encrypting the card data and sending it securely to a payment processor. The processor contacts the customer’s bank, confirms the funds are available, and approves or declines the charge. Once approved, the funds settle into a merchant account, which is a holding account that temporarily stores the money before transferring it to your regular business bank account.
Years ago, businesses had to contract separately with a gateway provider, a processor, and a bank that offered merchant accounts. Today, platforms like Stripe and PayPal handle all three roles in one integration. You sign up, add a few lines of code or install a plugin, and you’re processing cards. The tradeoff is that you pay per-transaction fees instead of negotiating individual rates with each provider, but for most small and mid-sized businesses, the simplicity is worth it.
Choosing a Payment Platform
The two most widely used platforms for website payments are Stripe and PayPal. Both charge no monthly fee for their standard service, and both support credit cards, debit cards, and digital wallets like Apple Pay and Google Pay.
Stripe charges 2.9% plus 30 cents per online transaction. International cards cost more at 4.4% plus 30 cents. If you also sell in person, Stripe’s rate drops to 2.7% plus 5 cents for card-present transactions. Stripe is especially popular with developers and businesses that want deep customization, since its API lets you build a fully tailored checkout experience.
PayPal charges 3.49% plus 49 cents when customers pay with their PayPal or Venmo balance, and 3.39% plus 29 cents for virtual terminal transactions (where you key in a card number manually). In-person payments run 2.29% plus 9 cents. PayPal also offers optional add-ons: Advanced Fraud Protection for $10 per month, recurring billing tools for $10 per month, and Payments Pro for $30 per month if you want a fully integrated checkout without redirecting customers to PayPal’s site.
For a quick comparison on a $50 online sale, Stripe’s fee would be about $1.75, while PayPal’s fee for a PayPal/Venmo payment would be about $2.24. On a standard card transaction, the gap narrows, but Stripe’s flat pricing tends to be simpler to predict. If your customers already have PayPal accounts and expect to see that option at checkout, offering PayPal can reduce cart abandonment. Many businesses offer both.
Three Ways to Add Checkout to Your Site
You don’t need to be a developer to start accepting payments, but your technical comfort level will determine which integration method fits best.
Payment Links (No Code)
This is the fastest option. You create a payment link through your provider’s dashboard, and customers click it to reach a hosted payment page. No website editing required. You can share the link over email, text, or social media, or turn it into a QR code or an embeddable buy button on your site. Payment links support one-time charges, recurring subscriptions, and even pay-what-you-want pricing. If you’re a freelancer sending invoices, a creator selling a digital download, or a small business testing online sales for the first time, this gets you live in minutes.
Hosted Checkout Pages
A hosted checkout page is a prebuilt payment form provided by your payment platform. You embed it on your site or redirect customers to a page the provider hosts for you. The form handles card validation, error messages, address auto-complete, and security compliance automatically. You can customize colors, fonts, and branding to match your site so the experience feels seamless. This approach also qualifies you for the simplest level of PCI compliance (the security standard required for handling card data), because your servers never touch the raw card numbers.
If you run a WordPress, Shopify, Squarespace, or Wix site, most payment providers offer plugins that install a hosted checkout with a few clicks. This is the sweet spot for businesses that want a professional checkout without writing code.
Direct API Integration
For full control over the payment experience, you can use composable UI components and APIs to build checkout from scratch. This lets you design a pixel-perfect form that lives entirely on your site, style every element with CSS, and access over 100 global payment methods. You’ll need a developer (or strong coding skills) to implement and maintain it, but the result is a checkout flow that looks and behaves exactly the way you want. Larger e-commerce businesses and SaaS companies typically go this route.
Accepting Recurring Payments
If you sell subscriptions, memberships, or retainer services, you’ll want automated recurring billing rather than charging customers manually each cycle. Stripe Billing, for example, lets you set up weekly, monthly, or annual billing on either flat-rate or usage-based models. Customers can pause, cancel, upgrade, or downgrade their plans, and charges are automatically prorated when they switch mid-cycle.
Failed payments are one of the biggest sources of lost subscription revenue. Look for a provider that offers smart retry logic, which automatically attempts the charge again at times when the card is most likely to succeed. Dunning management is equally important: this sends automated emails prompting customers to update their payment information when a charge fails, so you recover revenue without chasing people down manually.
Supporting International Customers
If you sell to customers outside the United States, your payment setup needs to handle currency conversion and local payment preferences. Credit cards work globally, but many countries have preferred local methods. Customers in parts of Europe often use SEPA Direct Debit (a bank transfer system), while shoppers in China may prefer Alipay. Digital wallets like Apple Pay and Google Pay are popular nearly everywhere.
International card transactions typically carry higher processing fees. Stripe, for instance, adds 1.5 percentage points for international cards compared to domestic ones. If a significant share of your revenue comes from abroad, factor that surcharge into your pricing. Offering localized payment methods can also improve conversion rates, since customers are more likely to complete a purchase when they see a familiar payment option.
Security and PCI Compliance
Any business that accepts card payments must comply with the Payment Card Industry Data Security Standard, commonly called PCI DSS. This set of rules governs how card data is stored, transmitted, and processed. Failing to comply can result in fines and loss of the ability to accept cards.
The easiest way to stay compliant is to never let raw card data touch your servers. Hosted checkout pages and payment links accomplish this by default, since the payment provider’s systems handle the sensitive information. If you use a hosted checkout, you typically only need to fill out a short self-assessment questionnaire (known as SAQ A) to verify compliance. Direct API integrations require more rigorous security measures on your end, including encryption protocols and regular vulnerability scans.
Getting Set Up Step by Step
Once you’ve chosen a platform and integration method, the setup process is straightforward. Create an account with your payment provider and verify your business details, including your legal name, tax ID, and bank account for deposits. Most providers approve standard accounts within a day or two.
Next, install the checkout on your site. For a no-code payment link, just copy the URL and place it where customers can find it. For a hosted checkout on a platform like WordPress or Shopify, install the provider’s plugin and follow the configuration wizard. For an API integration, your developer will add the provider’s JavaScript library and server-side code, then test transactions in a sandbox environment before going live.
Before you launch, run a few test transactions to confirm that payments process correctly, confirmation emails fire, and funds appear in your dashboard. Check the mobile experience too, since a large share of online purchases happen on phones. Most hosted checkouts are already optimized for small screens, but it’s worth verifying that buttons, forms, and error messages display properly.
Deposits from processed payments typically arrive in your bank account within two business days, though some providers offer next-day or instant payouts for an additional fee. Once transactions start flowing, monitor your dashboard for chargebacks (disputes where a customer asks their bank to reverse a charge) and respond promptly with documentation when they arise.