Switch payment providers
without breaking anything

Published July 2026 · 6 min read

Switching payment providers feels scary: it's the money coming in, every single day. The good news is that a well-prepared migration happens without a single day of downtime — most merchants even run the old and new systems side by side for a few days. Here is the complete checklist, in order.

Before you cancel anything

1. Re-read your current contract

• Notice period — often 1 to 3 months for contracts with a subscription; sometimes an annual renewal date with automatic rollover;
• Exit fees — early termination, hardware return, outstanding rental balance;
• Do you own the hardware? A rented terminal has to go back (in what condition, by when?). A purchased terminal is yours, but it's usually locked to the old provider — don't count on reusing it.

2. Measure what you actually pay

Take three monthly statements and work out your total cost (commissions + subscriptions + rentals + miscellaneous fees) divided by the volume you took in. That all-in percentage is the only honest baseline for comparing what comes next. Our guide "What does a card payment really cost?" walks through the calculation.

3. List everything that depends on your current provider

• Terminal(s) at the counter, integration with your till software;
• The payment module on your e-commerce site;
• Printed links or QR codes (menus, invoices, signs);
• Recurring payments or subscriptions from your own customers — the trickiest part, to migrate last.

The migration itself

4. Open the new account before closing the old one

Opening a payment account involves an identity and business verification (KYC) that takes anywhere from a few hours to a few days. Do it while the old system is still running — never the other way round.

5. Run both in parallel

A few days is enough: take new sales on the new system, and leave the old one open for the last transactions in flight. You validate the real journey (payment, payout to your bank account, statement) with zero risk.

6. Plan for the chargeback window

After your last sale on the old system, there are still flows to settle: pending payouts, and possible chargebacks (a customer can dispute a payment several weeks after the purchase). Keep the old account open — or at the very least its linked bank account — for 2 to 3 months after the switch.

7. Export everything before closing

Once the account is closed, access to your history often disappears with it. Export the transaction and payout statements for the legally required period (your accountant will thank you), the provider's invoices, and the list of your recurring-payment customers if you have any.

8. Update every touchpoint

New printed QR codes, the payment link in your quote and invoice templates, the module on your website, and possibly the payout IBAN you gave your accountant. Turn step 3 into a list and tick it off on switch day.

The right time to switch

The best moment is a quiet spell (not the run-up to the holidays for a shop, not a Saturday for a restaurant), after your current contract's notice period has run out. Count the notice period backwards: with a 2-month notice period and a switch planned for January, the cancellation goes out in November — and the new account opens in December.

One last piece of advice: a provider that makes leaving hard is telling you something about the rest of the relationship. Look for the opposite — no fixed-term commitment, hardware you buy rather than rent, data you can export at any time. Those are the choices we made at Nextepay, and they're written into our public price list.