POS System Cost: What Small Businesses Pay Over Three Years

By Office Stack Guide Editors · Updated 2026-11-12

On Square's free plan, a coffee shop taking $25,000 a month in $8 card sales pays about $1,119 a month in fees. That is 4.5%, not the advertised 2.6%, and about $40,000 over three years against $1,198 of hardware.

At a $60,000-a-month restaurant, Toast's "$0" Starter Kit costs about $8,300 more over three years than its $69-a-month plan, because the free plan carries a higher card rate. Compare processing rates and exit terms first. The software price is the small number.

At a glance

What a POS system really costs over three years

A POS (point of sale) system has three cost layers:

• Software: a monthly subscription per location.
• Hardware: card readers, terminals, registers and kiosks, bought, financed or leased.
• Processing: a percentage plus a fixed fee on every card sale, for as long as you take cards.

The table shows three example businesses over 36 months. The figures are our arithmetic using Square's published rates and hardware prices, checked November 12, 2026, assuming every sale is tapped or dipped in person. They are illustrations, not quotes.

The coffee shop pays almost 4.5% because the fixed 15¢ adds 1.9 percentage points to an $8 sale.

The restaurant figure is understated. Tips added to a card raise processed volume, and the totals leave out receipt printers, cash drawers and add-ons such as online ordering or payroll.

The same restaurant on Toast shows how much plan choice matters. At Toast's listed rates, the $69 Point of Sale plan (2.49% + 15¢) comes to about $1,763 a month in software and processing. The $0 Starter Kit (2.99% + 15¢) comes to about $1,994.

POS cost by vendor: Square, Clover, Toast and Shopify (prices checked November 2026)

• Square: Plus at $49 and Premium at $149 per location are set out in Square's pricing announcement; check Square's pricing page before you buy. Financing a Terminal at $27 a month for 12 months totals $324, against a $299 list price.
• Toast: check Toast's pricing page and get the contract term and early termination fee in writing.
• Clover: Clover sold through banks and resellers carries different rates, contracts and leases than Clover direct. Read your own contract.

Every price above is likely to change, including promotional "free hardware" offers.

Processing fees are most of the bill: flat rate vs interchange-plus

Flat rate means one blended price, such as 2.6% + 15¢, for every card. It is easy to forecast, and Square, Toast, Shopify and Clover direct all lead with it. You pay the same whether a customer taps a basic debit card or a premium rewards card.

That sameness has a price. The Federal Reserve caps debit interchange at large banks at 21¢ + 0.05% plus a 1¢ fraud adjustment: about 24¢ on a $40 sale. Square Free charges $1.19 on that sale. The gap goes to Square and to card-network fees.

Interchange-plus splits the fee in two. Interchange is the fee Visa and Mastercard set, paid to the cardholder's bank; Visa publishes its US tables. Visa notes that merchants do not pay interchange directly, but it is built into the rate your acquirer (the bank or processor handling your cards) charges you. It is your cost either way. The processor then adds a markup, such as "interchange plus 0.3% plus 10¢" (a hypothetical example).

Small shops pay well above the national average. US merchants paid $187.2 billion in card fees in 2024, according to the Nilson Report, roughly 1.6% of card volume by our division. That average includes large chains that negotiate their rates.

No independent data pins down when interchange-plus saves money; circulating savings figures come from processor marketing. As a typical range, it becomes worth comparing above roughly $10,000 to $20,000 a month in card sales. Test it on your numbers:

1. Add up total fees and total card sales on your last three statements.
2. Divide fees by sales to get your effective rate.
3. Ask an interchange-plus provider for a written quote listing the markup and every monthly fee.
4. Have them price the same three statements and compare the totals.

Statement, batch, gateway and PCI fees can erase a low markup.

What changes the price: ticket size, card mix, keyed-in sales, volume and plan tier

• Ticket size: the fixed 15¢ adds 0.4 points to a $40 sale and 1.9 points to an $8 sale.
• Keyed-in and online sales: typing in a card number costs 3.5% + 15¢ on every Square plan, so phone-order shops pay more per sale.
• Card mix: under interchange-plus, your cost moves with the cards customers carry. Flat rate absorbs that swing.
• Volume and plan tier: a paid plan lowers your rate, but only pays off above a certain volume.

Break-even math for paid plans, calculated from the rates above:

Below those volumes, buy Square Plus or Premium for features you will use, not fee savings. Toast's paid plan pays off much sooner because its free tier carries a higher rate.

Contracts, leases and "free" terminals: what the FTC has found

On November 2, 2026, the FTC and the Washington attorney general announced a proposed settlement with Riverside Payments and Cascade Equipment Leasing. The complaint alleged:

• Hidden activation, batch, non-compliance and inactivity fees.
• Promised savings of 40% to 60% that did not materialize.
• Processing and lease contracts that auto-renewed after a 3-year term without clear disclosure.
• Equipment leases that ran a year past the processing agreement, as reported by Payments Dive and CFO Dive.
• A $695 early termination fee buried in a 26-page contract.
• A "risk-free" cancellation promise that was not honored.

The trap was two companies. Riverside ran processing and Cascade held the lease, so cancelling one did not end the other. A second company name on your hardware paperwork means a second contract with its own end date.

Riverside pays $600,000, under 2% of a $32.1 million judgment that was suspended because the companies said they could not pay. Affected businesses get a 60-day window to cancel without penalty, Payments Dive reported, and OPB reported that more than 300 Washington businesses are eligible for relief. The inflated promises ran inside the company too: the FTC alleged that sales agents were promised $75,000 to $95,000 a year and averaged $3,787.

FTC consumer protection director Christopher Mufarrige said the companies "promised small businesses significant savings, but instead locked them into costly contracts and made cancellation very difficult," according to Payments Dive.

On July 29, 2022, the FTC acted against First American Payment Systems over hidden terms, $495 cancellation fees on 3-year contracts and withdrawals that continued after businesses revoked consent. The company paid $4.9 million. In February 2025, the FTC sent 5,588 refund checks totaling just over $2.6 million, about $465 each, less than one exit fee.

Lease math shows the stakes. A hypothetical $79 monthly lease over 48 months totals $3,792; a Clover Mini lists for $849 on Clover's site.

In both cases, the costly terms were already in the written contract while the sales pitch said otherwise. Getting "something in writing" was not enough. Instead:

1. Have the termination fee, renewal date and lease end date stated in dollars and dates on the quote itself.
2. Have any savings or cancellation promise written into the contract.
3. Read the contract against the quote before signing, or have a business attorney do it for a multi-year deal.

How to choose a POS system: questions to ask before you sign

Get written quotes from two or three providers, then ask each one:

1. What would my last three months of sales have cost on your pricing, in dollars?
2. What are your rates for in-person, keyed-in and online sales, and which monthly fees apply on top?
3. How long is the contract, when does it renew, and what is the exit fee in dollars?
4. Is the hardware bought, financed or leased, and which company holds the lease?
5. Does the lease end on the same date as processing, and can it be cancelled?
6. Does a "free" hardware offer change my rate or contract term?
7. Will this hardware work with another processor if I leave?

Pending changes: the card settlement and the debit cap

A revised Visa/Mastercard settlement won preliminary approval in June 2026. It proposes a 0.1-point average cut in credit interchange for 5 years, a 1.25% cap on standard consumer cards for 8 years, and new surcharging and card-acceptance rights. The final approval hearing is scheduled for November 16, 2026, and appeals are expected.

Even at full effect, the cut is small. On the coffee shop's $25,000 a month, 0.1 point is at most $25 a month, or $900 over three years, against $40,275 in processing.

Separately, on October 26, 2026, the Eighth Circuit upheld a ruling striking down the Fed's 21¢ debit cap. The court found the Fed counted too many bank costs, National Law Review reported, and Fed data put large banks' processing cost at about 4.1¢ per transaction in 2023. The current cap stays until the court's order takes effect. The Fed must then rewrite the rule, and no new number exists yet.

Both changes cut interchange, which processors pay. A flat 2.6% + 15¢ is not tied to interchange, so flat-rate merchants see a cut only if their vendor lowers its published rate.

FAQ

Can I pass card fees on to customers?

Surcharging (adding a fee to card payments) is allowed in some cases. Visa requires you to notify your acquirer 30 days before you start. Card network rules prohibit surcharging debit cards, and some states restrict or ban surcharging, so confirm with your processor and your state attorney general's office first.

Would interchange-plus fix a coffee shop's 4.5% rate?

Only partly. Debit interchange at large banks is about 22.4¢ on an $8 sale, or 2.8% before any markup, and Fed data shows the average capped debit fee was 22¢ to 24¢ in 2023. A small-ticket shop has less to gain from switching than a $40-ticket shop.

Should I take a "free" terminal?

Price what it costs you through the rate. Toast's $0-hardware Starter Kit requires a 2-year term and 2.99% + 15¢, versus 2.49% on its paid plan. At $60,000 a month, half a point is $300 a month, or $7,200 over the term, against $1,697 for comparable Square hardware bought outright.

What is PCI compliance, and should I pay a PCI fee?

PCI DSS is the card industry's security standard, and the PCI Security Standards Council says every merchant must comply regardless of size; small merchants usually file a yearly Self-Assessment Questionnaire (SAQ). The Council does not enforce compliance. Your acquirer and the card brands do, so ask them what to file. Some processors charge monthly PCI or "non-compliance" fees, which the FTC's Riverside complaint alleged went undisclosed, so ask whether filing your SAQ removes the fee.

Key takeaways

• Compare effective rates, not plan prices. Processing was 95% to 97% of three-year cost in every example.
• Upgrade on break-even math: Square Plus above about $49,000 a month in person, Toast's paid plan above about $13,800.
• Treat a second company name on hardware paperwork as a second contract with its own end date.
• Expect small tickets to cost more. At $8, the fixed 15¢ adds 1.9 points.

The bottom line

Pull your last three months of statements and calculate your effective rate. Get two or three written quotes priced on those statements, with exit fees, renewal dates and lease end dates in dollars and dates. Buy hardware outright where you can, and confirm every price on the vendor's page before signing. Do not count on the settlement or the debit ruling: they cut interchange, and a flat rate falls only if your vendor chooses to lower it.

Sources

• Square Support: What are Square's fees? (Square, 2026)
• Square: Pricing (Square, 2026)
• Square Shop: POS hardware (US) (Square, 2026)
• Toast: Pricing (Toast, 2026)
• Shopify POS pricing (Shopify, 2026)
• POS system cost (Shopify, April 23, 2026)
• Square Simplifies Commerce Software with New Unified Plans and Pricing (Square)
• Toast: Starter Kit (Toast, 2026)
• Clover Flex, Clover Mini and Clover Station Duo (Clover, 2026)
• FTC, Washington Take Action Against Payment Processor for Deceiving Small Businesses (Federal Trade Commission, 2026)
• Payment processor settles FTC allegations of deceptive fees (Payments Dive, 2026)
• Payment processor settles FTC allegations of deceptive fees (CFO Dive, 2026)
• Vancouver credit card processor misled customers (OPB, 2026)
• FTC Takes Action to Stop Payment Processor First American from Trapping Small Businesses with Surprise Exit Fees (Federal Trade Commission, 2022)
• First American Payment Systems Settlement refunds (Federal Trade Commission, 2025)
• PCI Security Standards Council: Merchant Resources (PCI Security Standards Council, 2026)
• Visa: Regulations and fees for businesses (US) (Visa, 2026)
• 2023 Interchange Fee Revenue, Covered Issuer Costs, and Covered Issuer and Merchant Fraud Losses (Federal Reserve, 2023 data)
• Merchant Processing Fees in the United States 2024 (Nilson Report, 2025)
• Court approves Visa-Mastercard settlement (Payments Dive, 2026)
• Eighth Circuit invalidates Federal Reserve's 21-cent debit card interchange fee cap (National Law Review, 2026)