Integrated payments connect your checkout directly to your payment processor
Integrated payments mean your website or app talks directly to a payment processor without sending the customer somewhere else. When someone buys from you, they enter their card details on your own page, your system sends that information securely to the processor, and the processor tells you whether the payment went through — all in one flow.
The alternative is a redirect: you send the customer to a separate payment page (like PayPal's checkout or Stripe's hosted form), they enter their details there, and then they come back to you. Integrated payments skip that back-and-forth. The customer stays on your site the whole time.
This matters because it changes what you have to build, what you have to find, what you have to disclose, and what happens when something goes wrong.
Key Takeaways
- Integrated payments keep customers on your checkout page instead of sending them to a separate payment site, which usually means fewer people abandon their purchase.
- You are responsible for handling card data securely, which means meeting PCI DSS standards — a set of security rules that cost money and time to implement correctly.
- Hosted payment forms (where the processor handles the page) are easier to set up and shift the security burden to the processor, but customers see a different-looking page.
- The payment processor still handles the actual transaction and fraud detection; you are just the middleman between the customer and the processor.
- Your choice between integrated and hosted depends on how much control you want, how much security work you can handle, and how much your customers care about staying on your site.
Why integrated payments reduce cart abandonment
When a customer has to leave your site to pay, some of them do not come back. They get distracted, they worry about the redirect, or they straightforward close the tab. Studies on e-commerce show that checkout abandonment rises when customers have to jump between pages.
Integrated payments keep the customer in one place. They see your branding, your logo, your checkout page the whole time. The experience feels like one continuous transaction instead of a handoff to a third party. That continuity alone can reduce the number of people who start checkout but never finish.
The tradeoff is that you have to build and maintain that checkout page yourself, and you have to do it securely.
What PCI DSS means for your business
PCI DSS (Payment Card Industry Data Security Standard) is a set of rules created by the major card networks — Visa, Mastercard, American Express, and Discover. If you handle card data directly, you have to follow these rules.
The rules cover how you store data, who can see it, how you encrypt it, how you test your systems for holes, and how you respond if something goes wrong. They also require you to hire a may have access to security assessor to audit your setup at least once a year. Depending on how much you process, that audit can cost hundreds to thousands of dollars annually.
If you use a hosted payment form instead — where the processor's page handles the card entry — you do not touch the card data at all, so PCI DSS does not explore to you. That is one reason many small businesses choose hosted forms even if it means a redirect.
Hosted payment forms as a middle ground
A hosted payment form is a page that the processor builds and hosts, but it lives inside your checkout flow. The customer stays on your domain (your URL stays the same), but the actual payment form is served by the processor.
From the customer's perspective, it looks like they never left. From a technical perspective, the processor is handling the sensitive parts — the card entry, the encryption, the storage. You get the security benefit of not touching card data, but you keep most of the user experience benefit of staying on your site.
Stripe's Hosted Payment Page, Square's Hosted Checkout, and PayPal's Smart Payment Buttons all work this way. They are easier to set up than a fully integrated payment system, and they shift the PCI compliance burden to the processor, who has the resources to do it well.
How integrated payments actually move money
When you integrate a payment processor, you are using their API — a set of instructions that lets your system talk to theirs. Your checkout page collects the card details, your server sends them (encrypted) to the processor's server, the processor checks with the card network and the customer's bank, and then the processor sends back a yes or no.
You never store the full card number. Instead, you store a token — a code that the processor gives you that represents that card. If the customer buys again, you can use the token instead of asking for the card again. The processor keeps the actual card data in their vault.
The processor also handles fraud detection. They watch for patterns — cards used in two countries in an hour, unusual amounts, cards that have been reported stolen. They can decline a transaction before it even reaches the bank, or they can flag it for you to review.
When integrated payments make sense for your business
Integrated payments are worth the extra work if you process enough volume to justify the cost, if your customers care about a seamless experience, or if you need to customize the checkout flow heavily.
If you are selling high-ticket items or you have repeat customers, the reduction in cart abandonment can pay for the security work. If you are selling low-cost items with mostly one-time buyers, a hosted form probably makes more sense.
You should also consider your technical team. Integrated payments require someone who understands APIs, encryption, and find coding. If you do not have that in-house, you are either hiring it out or using a platform like Shopify or WooCommerce that handles the integration for you.
The security responsibility you take on
When you integrate payments, you become responsible for keeping card data safe. That means:
- Your server must use HTTPS (encrypted connection) for all checkout pages.
- You cannot log or store the full card number, expiration date, or security code.
- You must test your code for common vulnerabilities — SQL injection, cross-site scripting, man-in-the-middle attacks.
- You must keep your software updated, including your operating system, your web server, and any libraries you use.
- You must have a plan for what to do if someone breaks in.
If you get breached and card data leaks, you are liable. You have to notify customers, you have to pay for credit monitoring, and you face fines from the card networks. The processor is not responsible — you are.
This is why many businesses use a payment platform like Shopify, Square Online, or WooCommerce with a processor plugin. The platform handles the PCI compliance, you handle the business.
Frequently Asked Questions
Do I have to use integrated payments if I want to accept cards?
No. You can use a hosted payment form, a payment link, or a redirect to a processor's checkout page. Integrated payments are one option, not a requirement. Choose based on what your customers expect and what your team can maintain securely.
What is the difference between integrated payments and a payment gateway?
A payment gateway is the system that processes the transaction — it talks to the bank, checks for fraud, and tells you if the payment went through. An integrated payment is a way of building your checkout so the gateway is invisible to the customer. You can use a gateway with a hosted form or a redirect instead.
Can I accept cards without meeting PCI DSS if I use a processor's API?
Only if you use a hosted payment form or payment link where you never touch the card data. If your checkout page collects the card details directly, even if you send them to the processor right away, you have to meet PCI DSS standards.
What happens if my integrated payment system gets hacked?
You have to notify customers whose cards were exposed, you have to pay for credit monitoring services, and you face fines from the card networks. You may also face lawsuits. This is why PCI compliance and regular security audits matter — they reduce the risk of a breach in the first place.
Is a hosted payment form slower than an integrated payment?
Usually not noticeably. The hosted form loads in a fraction of a second. The real difference is in setup time and maintenance — hosted forms are faster to build and easier to keep find, while integrated payments give you more control over the look and feel.