POS vs payment processor: keep them apart

A customer is paying at checkout and the register shows a message like “There is a problem with your account.” The card does not go through, and neither does the next one. Nobody at the counter knows what is going on or why. The owner finds out later, usually from an email sent by the payment processor. If your POS can only take cards through that one processor, your whole operation stops: no card sales at any register, in any store, and nothing anyone on the floor can switch.

Key takeaways

• If your POS only takes cards through its own payment processor, a suspension of that one processor account can bring your whole operation to a halt.
• Processor reviews apply to new and long-standing accounts alike, and many everyday events can set one off.
• Getting a held or suspended account cleared can take weeks, and part of your money can stay held for six months or more, even after the account clears.
• When you choose a POS, make sure it does not lock you into one payment processor, so you can switch processors without changing your POS.
• Keep backup processor accounts open with different companies, and run some sales through them so they are ready when you need them.

What a processor hold actually stops

Processors use a few different tools, and they hit a store in different ways. The words in the email matter, so it helps to know which one you got.

What the processor does	Can you still take cards?	What happens
Holds or suspends the account	No	Card payments stop. You can be locked out of your account and unable to make sales. Money already in it can stay held while the processor reviews it.
Holds or delays payouts	Yes	Sales go through, but deposits to your bank stop or are delayed.
Puts a reserve on the account	Yes	A share of each card sale is set aside for a period before it is paid out.

Payouts do not have to continue during a hold. Square’s Payment Terms, for example, say Square “may withhold funds by temporarily suspending or delaying payouts,” and can do so “temporarily or indefinitely.”

A payout hold hurts cash flow. A suspension stops the whole operation, because the register itself stops taking cards.

When the POS and the processor are the same company

Many POS systems are built around their own payment service. That is often how they make their money, and it makes setup easy on day one. The cost shows up later, when the processor account has a problem or you want to use someone else.

• Square. Square Point of Sale takes cards through Square’s own processing. Square’s fees page describes the card fee as “Square’s processing fees,” taken out of each sale.
• Shopify POS. Shopify’s POS Go requirements say you need Shopify Payments active and that “third-party payment gateways aren’t supported.” Shopify’s card payments page explains the alternative: an external terminal from another processor, a custom payment type, and staff who “mark the order as paid” by hand.
• Lightspeed Retail. In the stores I ran, we used Lightspeed with Zettle for card payments. Then Lightspeed started charging us for not using Lightspeed Payments. Lightspeed’s switch page lists the fee as $400 a month for lower volume merchants, or up to 0.58% of monthly transaction volume for higher volume merchants, and says it covers the cost of maintaining third-party processors.

None of this is a trick. Each company is open about how its setup works. The point is what it means for you: when the POS and the processor are one account, a problem with the processor is a problem with the whole operation.

When they are separate, the POS keeps working. Your stock counts, customer records and sales history are still there. You turn on a different payment type and keep selling.

Can a payment processor freeze an account that has been fine for years?

Yes. Processors review accounts and monitor your activity on an ongoing basis, not only at signup. Stripe’s account review FAQ says Stripe reviews “both new and existing” accounts and watches every account for risk signals.

Most reviews come from risk checks, compliance rules and card network rules. Square’s reserves page lists reasons such as a high chargeback rate, “variations or inconsistency in transaction sizes or methods,” and being new to Square with no processing history. Stripe’s FAQ lists a “sharp volume increase” as a signal, because a sudden spike can mean a business is struggling to fill orders or is under a fraud attack.

What does this mean for your business? A big holiday weekend, a pop-up event, a big sale day or a wave of holiday returns can all look unusual to a risk system and get your account flagged for a hold and review.

The processor is not trying to put you out of business. In my experience, a hold usually comes with a clear request for documents or information. The hard part is the wait, which often runs to days.

How long does a payment processor hold last?

Plan for weeks, not hours. Some holds clear soon after you send what the processor asked for. Other times the processor rejects your response and documents, or asks for more information.

A reserve, on the other hand, runs on a different clock. It does not stop your sales, but it keeps part of each one back. Square’s reserves page says accounts with reserves are reviewed after a minimum of six months.

Either way, with more and more customers going cashless, a hold or suspension means lost sales and reduced, delayed cash flow.

Pick a POS that works with more than one processor

Your POS decides whether switching processors is a setting or a migration. You do not need to change POS today to act on this. Check what your current one allows, and put these questions to any vendor at your next contract renewal or POS decision:

• Which payment processors does the POS connect to directly?
• Can more than one processor be active at the same time?
• Can each location use a different processor?
• Is there a fee if you do not use the POS company’s own payments?
• Can you use your processor account with a different POS?
• How long does it take to move a register from one processor to another?

The same flexibility helps when nothing goes wrong. Processor fees come out of every card sale, so when a processor changes its rates, you can move on your own schedule.

What a backup processor costs per store

A second processor account usually has no monthly fee. The main cost is a card reader for each store, a small price for knowing your business can keep selling when disaster strikes. Here is what the main US options cost, from each processor’s own pages:

Processor	Monthly fee	Card reader
Stripe	$0 (pricing)	From $59 (readers)
Square	$0 (pricing)	From $59 (readers)
PayPal (Zettle)	$0 (pricing)	From $29 (readers)

Used readers also sell for less on marketplaces such as eBay. Before you buy one, check that your processor and your POS support that model, and ask the processor whether a used reader can be registered to your account.

Set up a backup processor before you need it

A backup only helps if it already works on the day the first account stops. Set it up in this order:

1. Open an account with a different payment processor. A second account at the same provider will not help.
2. Buy a card reader for the backup and keep at least one at every location.
3. Connect the backup to your POS and confirm a test sale goes through at each store.
4. Run real sales through the backup now and then. An account that sits empty for a year and then takes a full Saturday of sales matches the “sporadic processing activity” and “sharp volume increase” signals Square and Stripe describe. Regular small volume gives the processor a normal pattern to compare against.
5. Write down what staff should do when the register shows an account error: who switches the payment type, and who calls the owner. The person at the counter should not have to guess.

How Olet handles payment processors

Olet connects to Square, Zettle/PayPal and Stripe for card payments. A store can keep any combination active at once, along with cash and manual payments, which record payments taken outside Olet. More payment integrations are in progress.

• The store owns its processor account and keeps it if it moves to another POS.
• Different locations can have different processors assigned.
• Switching a register to a second processor that is already connected takes seconds: a toggle turns a payment type on or off. The register needs a card reader compatible with that processor.
• Olet charges no payment processing or transaction fees. Olet charges one fee, based on location and register count.

The setup I see most often among Olet stores is one primary processor, with the others connected as backup.