How Business Payment Services Work and What They Cost

What business payment services do

Business payment services move money between your company's bank account and your customers' accounts or cards. They handle the mechanics: taking a payment, verifying the funds exist, moving the money to you, and handling disputes or refunds. You do not process these payments yourself — a payment processor (the company you contract with) does the work and takes a fee for it.

The service you choose depends on how your customers pay you. If they swipe a card in person, you need a point-of-sale (POS) system. If they pay online, you need a payment gateway. If they mail checks or pay by bank transfer, you may not need a service at all — but many businesses use one anyway to speed up deposits and track cash flow automatically.

The processor sits between your customer and your bank. Your customer sends money to the processor, the processor verifies it, takes its cut, and deposits the rest into your business bank account — usually within one to three business days, though some services offer next-day or same-day deposits for an extra fee.

Key Takeaways

• A payment processor takes a percentage of each transaction (typically 1.5 to 3.5 percent for cards) plus sometimes a flat per-transaction fee, and deposits the remainder into your business bank account.
• Point-of-sale systems handle in-person card payments; payment gateways handle online payments; ACH services handle bank-to-bank transfers.
• Deposit speed varies by service and payment method — some offer next-day deposits, others take three to five business days, and faster deposits usually cost more.
• Chargebacks and disputes are handled by the processor, but you may lose the money while the dispute is investigated, so keeping records of what you sold is essential.
• Monthly fees, setup fees, and equipment rental fees vary widely, so comparing the total cost across all transaction types matters more than comparing one rate alone.

How fees work and what they actually cost you

Payment processors charge in three ways: a percentage of the transaction amount (called an interchange fee or discount rate), a flat fee per transaction, and sometimes a monthly account fee. A typical card transaction might cost you 2.2 percent plus $0.30 per swipe. On a $100 sale, that is $2.50 out of your pocket. On a $10 sale, the flat fee hurts more — you lose $0.30 plus $0.22, which is 5.2 percent of the sale.

Different payment methods cost different amounts. Credit cards cost more than debit cards. Online payments cost more than in-person payments (because the processor takes on more fraud risk). Bank transfers (ACH) cost less — often a flat $0.25 to $1.50 per transfer, or sometimes free. Some processors charge a monthly minimum or a monthly account fee whether you process anything or not.

The only way to know your true cost is to add up every fee across every payment method you use, then multiply by your expected monthly volume. A processor quoting you 2.2 percent might be cheaper than one quoting 2.5 percent if the first one charges no monthly fee and the second charges $25 per month. The math changes if you process $500 a month versus $50,000 a month.

Point-of-sale systems for in-person payments

A point-of-sale (POS) system is hardware and software that lets customers pay you with a card in your physical location. It includes a terminal (a device that reads the card), a receipt printer, and software that tracks your sales. The processor owns or leases you the hardware, and you pay a monthly fee plus transaction fees.

You can rent a terminal from your processor for $20 to $50 per month, or buy one outright for $200 to $1,000 depending on features. Renting spreads the cost but costs more over time. Buying saves money if you keep the business for years, but locks you into one processor — switching means buying new hardware or losing your investment.

Some processors offer all-in-one systems (Square, Toast, Clover) that combine the terminal, software, and payment processing in one contract. Others let you bring your own device — you can use an iPad with a card reader attachment, which costs less upfront but may have higher transaction fees. The trade-off is always between lower upfront cost and lower per-transaction cost.

Payment gateways for online and remote payments

A payment gateway is software that lets customers pay you through your website, email, or invoice. It does not require a physical terminal. The gateway encrypts the customer's card information, sends it to the processor, and tells your website whether the payment went through. You never see the card number itself.

Payment gateways charge per transaction (usually 2.2 to 3.5 percent plus $0.30) and sometimes a monthly fee ($10 to $50). Some charge a setup fee. The gateway integrates with your website or invoicing software — if you use Shopify, WooCommerce, or QuickBooks, you can plug in a gateway without building anything new.

The gateway also handles recurring payments (subscriptions) and invoicing. You can send a customer an invoice link, they click it and pay, and the money lands in your account automatically. This is useful for service businesses, membership sites, and any business that bills the same customer repeatedly.

ACH transfers and bank-to-bank payments

ACH stands for Automated Clearing House — it is the system that moves money directly from one bank account to another. Unlike card payments, ACH does not go through a payment processor; it goes through the banking system itself. ACH is slower (three to five business days) but much cheaper (often $0.25 to $1.50 per transfer or free).

ACH works best when your customer initiates the payment — they give you their bank account number and authorize you to pull money from it. You can also push money to them (send them a refund or payment) using ACH. Many invoicing and accounting software tools (QuickBooks, FreshBooks, Wave) let you request ACH payments from customers directly in the invoice.

ACH is riskier than cards because the customer can dispute the payment for up to 60 days after it posts, even if they authorized it. If they claim they never approved it, the bank pulls the money back out of your account and you have to prove they did authorize it. For this reason, keep a written record (email, signed form, or screenshot) of every ACH authorization.

Deposits, timing, and cash flow

After a customer pays, the processor does not send you the money immediately. The time between payment and deposit is called the settlement period. Standard settlement is two to three business days — you process a payment on Monday, it settles Wednesday or Thursday. Some processors offer next-day or same-day settlement for an extra fee (usually 0.5 to 1 percent of the transaction).

The settlement period exists because the processor needs time to verify the payment went through, handle any disputes that pop up immediately, and batch all your transactions together before sending them to your bank. During this time, the money is not in your account — it is held by the processor. If a customer disputes the charge during this window, the processor can reverse it before it ever reaches you.

For small businesses, this delay matters. If you need cash today to pay suppliers, waiting three days for a deposit can force you to borrow money or dip into savings. Faster deposits cost more, so you have to decide whether the speed is worth the extra fee. Some processors offer a line of credit that lets you borrow against future deposits at a high interest rate — this is expensive and should be a last resort.

Chargebacks, disputes, and protecting yourself

A chargeback happens when a customer tells their bank "I did not authorize this charge" or "I did not receive what I paid for." The bank pulls the money back out of your account and gives it to the customer. The processor notifies you and gives you a window (usually 7 to 10 days) to dispute the chargeback by providing evidence that the customer did authorize the payment and received the goods or service.

Evidence that wins a chargeback dispute includes: a signed receipt or contract, an email from the customer authorizing the charge, a delivery confirmation showing the customer received the item, or a record showing the customer used the service. If you cannot provide evidence, you lose the money and usually pay a chargeback fee ($15 to $100) on top of it.

To protect yourself, keep records of every transaction. For in-person sales, keep receipts. For online sales, keep order confirmations and delivery tracking. For services, keep contracts or emails showing what the customer paid for and when. For subscriptions, keep a record of when the customer signed up and when they could have canceled. If chargebacks become frequent (more than 1 percent of your transactions), the processor can shut down your account.

Comparing processors and choosing one

No single processor is cheapest for every business. A processor cheap for high-volume card sales might be expensive for a business that mostly takes ACH payments. Before you sign a contract, calculate your expected monthly cost under each processor's fee structure.

Start by listing how you expect customers to pay: percentage by card, percentage by ACH, percentage by check. Then get quotes from three to five processors (Square, Stripe, PayPal, your bank, and a local processor are good starting points). For each processor, calculate: (percentage fee × your monthly card volume) + (flat fee per card transaction × number of card transactions) + (ACH fee × number of ACH transactions) + monthly account fee. The processor with the lowest total is your cheapest option.

Also ask about contract terms. Some processors lock you in for a year; others let you cancel anytime. Some charge an early termination fee. Some own the customer data; others let you export it. Read the contract before you sign — processor agreements are long, but the cancellation terms and data ownership clauses are the parts that matter most.

Frequently Asked Questions

What is the difference between a payment processor and a payment gateway?

A payment processor handles the money — it takes the payment from the customer, verifies the funds, and deposits it into your account. A payment gateway is the software that collects the customer's payment information and sends it to the processor. You need both for online payments; for in-person payments, the POS terminal combines both functions.

Can I use the same processor for card payments and ACH payments?

Yes. Most major processors (Stripe, Square, PayPal) handle both. But the fees are different — ACH is usually much cheaper. If you expect a lot of ACH volume, ask the processor what their ACH fees are before you sign up, because some processors push card payments and charge high ACH fees to discourage them.

What happens if a customer disputes a charge after I have already spent the money?

The processor pulls the money back out of your account, even if your balance goes negative. You then have to dispute the chargeback with evidence, or you lose the money. This is why keeping records matters — and why some businesses require payment upfront or use services like ACH that are harder to dispute.

Do I have to use the processor's hardware, or can I bring my own device?

Most processors let you bring your own device (like an iPad with a card reader), but they may charge higher transaction fees for it. Some processors (like Square) own the hardware and lease it to you, so switching processors means buying new hardware. Check the contract before you commit.

How long does it take to get paid after a customer pays me?

Standard settlement is two to three business days. Some processors offer next-day or same-day settlement for an extra fee. ACH transfers take three to five business days. Checks take five to seven business days to clear. The fastest option is always the most expensive.