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Credit Card Sean

Guide Plain English

How to switch credit card processors without missing a sale

By Sean Carriveau, Certified Payments ProfessionalReviewed October 29, 2026

On this page
  1. Step 1: Know what you pay today
  2. Step 2: Read your current agreement
  3. Step 3: Compare quotes on the same month
  4. Step 4: Check your equipment
  5. Step 5: Apply and get approved
  6. Step 6: Set up and test before you cancel anything
  7. Step 7: Move your saved cards and payment links
  8. Step 8: Close the old account in writing
  9. Common questions

The short answer

Read your current agreement first, compare quotes on the same month of sales, set up and test the new account before you cancel the old one, then close the old account in writing and watch your next statement.

Switching processors sounds like a big job, so a lot of owners put it off for years. Done in the right order, it is mostly paperwork, and your customers never notice. The mistakes that cost money come from doing the steps out of order: canceling too early, signing before reading the old agreement, or forgetting about a lease.

Here is the order I walk owners through.

Step 1: Know what you pay today

Pull your most recent monthly statement and find two numbers: total card sales and total fees. Divide fees by sales to get your effective rate. Without that number you cannot tell whether a new quote is actually better.

Fees ÷ sales

Your effective rate: the one number every quote has to beat

Step 2: Read your current agreement

Before you sign anything new, find out what leaving costs. Most of this is in the agreement or the terms your processor emailed when you signed up.

  • When the agreement ends, and whether it renews on its own.
  • Whether there is a cancellation or early termination fee, and how it is calculated.
  • Whether you own your terminal or are leasing it. A lease is a separate contract and keeps billing after you switch.
  • How many days' written notice they want before you close.

A cancellation fee does not automatically mean you should stay. If the yearly savings are clearly bigger than the fee, paying it can still come out ahead. Do the math before deciding.

Step 3: Compare quotes on the same month

Give every processor the same recent statement and ask for a written comparison on those exact numbers. A quote that only lists a rate is not a quote.

  • Ask for the pricing model in writing: flat rate, tiered, or interchange-plus.
  • Ask for every monthly, yearly and per-transaction fee, not only the rate.
  • Ask how fast deposits land in your bank account.
  • Ask who you call when something breaks, and how quickly they answer.

Step 4: Check your equipment

Some terminals can be reprogrammed for a new processor. Others are locked to the company that sold them. Find out before you switch, so you are not paying for two machines or scrambling for a new one on opening day.

Step 5: Apply and get approved

The application asks for basic business details. Having these ready makes it go faster:

  • Your business name, address and tax ID (EIN), or your SSN if you are a sole owner.
  • A voided check or bank letter for the account your deposits go to.
  • A photo ID for each owner.
  • One to three recent processing statements.

Step 6: Set up and test before you cancel anything

Card setup can take up to about two weeks. A new POS system can take two to six weeks to build and install. Keep taking cards on the old account the whole time, so there is never a day you cannot take a payment.

  1. Install or reprogram the equipment while the old account is still open.
  2. Run a small test sale on the new account and refund it.
  3. Wait for the deposit to land in your bank, so you know funding works.
  4. Train whoever runs the register, even if it is just a five-minute walkthrough.

Step 8: Close the old account in writing

Once the new account is working, send the old processor written notice and ask for a confirmation that the account is closed. Then check your bank account and your next statement for any charges that keep coming.

Keep your old statements. A customer can dispute a sale months later, and you will want the records.

Common questions

  • How long does it take to switch credit card processors?

    Approval often takes a day or a few days. Getting set up can take up to about two weeks, and a full POS install can take two to six weeks. Because you keep the old account open until the new one is tested, you should never lose a day of sales.

  • Can I keep my current card machine?

    Sometimes. Many terminals can be reprogrammed for a new processor, but some are locked to the company that sold them. Check before you sign, and if your terminal is leased, read the lease too.

  • Is it worth paying a cancellation fee to switch?

    Only if the savings are bigger. Compare the fee to what you would save over the next year on your real numbers. If the savings are small or uncertain, it can make sense to wait until the agreement ends.

  • Do I have to switch to get a better price?

    No. A written comparison sometimes gives you what you need to ask your current processor for a better deal. If they lower your price and the rest of the service is good, staying is a fine outcome.

Thinking about switching? Start with your statement

Send over a statement and I will tell you where you stand.

  1. You send your statement
  2. I break down every fee
  3. We walk through it together
  4. You decide

What you get back

  • Your effective rate
  • Every fee explained
  • A side-by-side comparison
  • A written summary you keep

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