The fastest way to start accepting credit cards as a small business is to sign up with a payment service provider like Square, Stripe, or PayPal Zettle, which can have you processing payments within a day. But depending on your sales volume and business type, a dedicated merchant account might save you money over time. Here’s how to evaluate your options, choose hardware, understand fees, and stay compliant.
Two Main Ways to Process Cards
Every credit card payment flows through a processing infrastructure that connects your business to the customer’s card issuer. As a small business, you have two paths into that system: a payment service provider (PSP) or a dedicated merchant account.
A payment service provider is a third-party company that lets you accept credit cards, debit cards, and digital wallet payments without opening your own merchant account. Companies like Square, Stripe, Toast, and PayPal Zettle fall into this category. Hundreds or thousands of merchants share a single pooled merchant account under the provider’s umbrella. The upside is speed and simplicity: approval is typically instant, there’s usually no monthly fee, and you get a bundled suite of tools for invoicing, reporting, and inventory. The downside is less account stability. Because the provider takes on the combined risk of all its merchants, it’s more likely to freeze or terminate an account it suddenly considers risky, sometimes with little warning.
A dedicated merchant account is an account set up specifically for your business. Traditional processors like Helcim, Payment Depot, and many bank-affiliated providers offer these. The approval process involves verification and compliance checks that can take days or weeks, but once you’re approved, your account is far more stable. Dedicated accounts also tend to offer lower per-transaction costs at higher volumes, which matters if you’re processing tens of thousands of dollars a month.
For most businesses just starting out or processing under $10,000 a month, a PSP is the practical choice. As volume grows, running the numbers on a dedicated merchant account can reveal meaningful savings.
Choosing Your Hardware
The hardware you need depends on how you sell. A brick-and-mortar shop has different needs than a food truck, a freelancer invoicing clients, or an online store.
- Bluetooth chip and contactless readers: These small, wireless devices connect to your smartphone or tablet and accept chip cards, tap-to-pay, and mobile wallets like Apple Pay and Google Pay. They’re the most affordable entry point, often under $80. PayPal Zettle’s first card reader costs $29, for example.
- Handheld smart readers: A step up from basic Bluetooth readers, these support multiple payment methods and work without a separate phone or tablet. They have small screens and fewer features than a full POS terminal but cost less. Expect to pay a few hundred dollars.
- Mobile POS terminals: Portable, all-in-one devices with touchscreens, receipt printers, and sometimes barcode scanners. The Clover Flex runs $749, while the Flex Pocket is $699. These are ideal for restaurants, retail counters, or any business that needs a self-contained checkout experience.
- Tap to pay on phone: Some processors now let you accept contactless payments directly on your iPhone or Android device with no additional hardware at all. This works only for tap-enabled cards and mobile wallets.
If you sell exclusively online, you don’t need physical hardware. A payment gateway, which most PSPs include automatically, handles card entry on your website or through emailed invoices.
How Processing Fees Work
Every time a customer pays with a card, several parties take a cut. The card-issuing bank charges an interchange fee, the card network (Visa, Mastercard, etc.) charges an assessment fee, and your processor charges its own markup. How these fees are packaged determines what you actually pay.
Flat-Rate Pricing
The processor bundles interchange fees, assessment fees, and its markup into one predictable rate. A typical flat rate is 2.6% plus 10 cents per in-person transaction, with online transactions running slightly higher (often 2.9% plus 30 cents). On a $50 sale, you’d pay about $1.40 in processing fees. This model is simple to understand and budget for, and it’s what most PSPs use. There’s usually no monthly fee, making it cost-effective for lower volumes.
Interchange-Plus Pricing
The processor passes the actual interchange fee through to you and adds a consistent markup on top, something like 0.4% plus 8 cents per transaction. Because interchange rates vary by card type (a basic debit card costs less to process than a rewards credit card), your per-transaction cost fluctuates. But the transparency often results in lower overall costs, especially as your volume increases. This model is more common with dedicated merchant accounts.
Subscription Pricing
Some processors charge a flat monthly fee (often $50 to $100 or more) and pass interchange fees through at cost with little or no per-transaction markup. This works best for businesses with high monthly volume, where the savings on each transaction more than offset the subscription cost.
Beyond per-transaction fees, watch for additional charges: monthly account fees, PCI compliance fees, chargeback fees (typically $15 to $25 per disputed transaction), and early termination fees if you cancel a contract. Many PSPs don’t charge these extras, which is another reason they appeal to newer businesses.
What You Need to Get Started
Signing up with a payment service provider is straightforward. You’ll typically provide your name, business name, an email address, a bank account for deposits, and your Social Security number or Employer Identification Number (EIN). Most PSPs approve you instantly and ship hardware within a few days.
Applying for a dedicated merchant account requires more documentation. Expect to provide:
- Business formation documents: Your articles of incorporation, LLC operating agreement, or DBA registration.
- Bank statements: Usually three to six months of business banking history.
- Processing history: If you’ve accepted cards before, prior statements help the processor assess your risk profile.
- Estimated transaction volume: How many transactions you expect per month and your average ticket size.
- Your method of accepting payments: Whether you’ll process cards online, in person, or both.
The underwriting process (the processor’s review of your financials and risk level) can take anywhere from a couple of days to a few weeks. Businesses in industries that processors consider higher risk, such as travel, supplements, or subscription services, may face longer reviews or higher rates.
Keeping Card Data Secure
Any business that accepts credit cards must follow the Payment Card Industry Data Security Standard, known as PCI DSS. This is a set of technical and operational requirements designed to protect cardholder data, and it applies to every merchant regardless of size or transaction volume.
For small businesses, compliance usually means completing a Self-Assessment Questionnaire (SAQ). There are several versions of this questionnaire, each designed for a specific type of payment environment. A business that only uses a provider’s hosted payment page online fills out a different, shorter SAQ than a business that stores card data on its own servers. Your processor or payment brand will tell you which SAQ applies to you.
If you use a PSP, much of the compliance burden is handled for you. The provider manages the secure infrastructure, and PCI compliance is typically included at no extra charge. With a dedicated merchant account, you may need to complete annual SAQ validation and could be charged a separate PCI compliance fee, often $80 to $120 per year.
Regardless of your setup, a few basics apply to every business: never write down or store full card numbers, use only approved and up-to-date hardware or software, and make sure any staff handling payments understand the basics of protecting customer information.
Getting Paid: How Deposits Work
After a customer swipes, dips, or taps their card, the funds don’t land in your bank account immediately. Most processors deposit funds within one to two business days, though some offer next-day or even instant transfers for an additional fee. Square, for instance, offers instant transfers to a linked debit card for a per-transfer charge.
Your deposit will be the transaction amount minus processing fees, which are typically deducted automatically. Some processors batch fees together and deduct them as a single monthly charge instead. Either way, reconciling your processing statements against your bank deposits on a regular basis helps you catch errors and understand your true cost of accepting cards.
Accepting Cards Online
If you sell through a website, you’ll need a payment gateway, which is the digital equivalent of a card terminal. It securely captures card information, sends it for authorization, and returns a confirmation. Most PSPs include a gateway automatically. Stripe and Square, for example, offer embeddable checkout forms, hosted payment pages, and plugins for popular e-commerce platforms like Shopify and WooCommerce.
For invoiced services, nearly every processor lets you email a payment link or digital invoice that the customer can pay with a card. This is often the simplest way for freelancers, consultants, and service businesses to start accepting cards without building a website checkout flow.
Picking the Right Option for Your Business
Start by estimating your monthly card sales and average transaction size. If you’re processing under $5,000 a month, flat-rate pricing through a PSP will almost certainly be the simplest and cheapest path. The lack of monthly fees, fast setup, and included tools (invoicing, reporting, online store features) make it easy to get running without a big upfront investment.
Once your monthly volume consistently exceeds $10,000 to $15,000, compare your effective rate (total fees divided by total sales) against quotes from interchange-plus or subscription processors. Even a fraction of a percentage point in savings adds up quickly at higher volumes. A business processing $30,000 a month that shaves 0.3% off its effective rate saves roughly $1,080 a year.
Also consider your selling environment. A mobile business benefits from a lightweight Bluetooth reader and a phone-based app. A busy retail store needs a countertop terminal that can handle volume without lag. An online-only business doesn’t need hardware at all, just a reliable gateway. Match the solution to how your customers actually pay, and you’ll avoid spending on features you never use.