The minimum setup for accepting mobile payments
To accept mobile payments, you need three things: a smartphone or tablet, a card reader that plugs into it, and an account with a payment processor. The card reader is the physical device that reads the customer's card or phone. The payment processor is the company that handles the money — they take the payment from the customer's bank, hold it briefly, and send it to your business bank account.
You do not need a traditional cash register, a landline, a computer, or a physical storefront. A single person with a phone and a reader can start taking payments anywhere — at a market, a customer's home, a pop-up location, or a vehicle. This is why mobile payments work for people who are new to formal business or who move around.
Key Takeaways
- A card reader that connects to your phone is the only hardware you must buy; most cost between $20 and $100 depending on the type.
- Your phone must have a working internet connection — either mobile data or WiFi — to process the payment in real time.
- The payment processor (the company you sign up with) provides the app you use; you do not buy software separately.
- You will need a business bank account to receive the money, though some processors can send payments to a personal account while you are starting out.
- A receipt printer is optional but useful if you want to print receipts instead of sending them by email or text.
The card reader: types and what they do
A card reader is a small device that reads payment information from a customer's card, phone, or smartwatch. It connects to your phone through the headphone jack, the charging port, or Bluetooth wireless. The type you choose depends on how your customers want to pay and how much you want to spend.
A magnetic stripe reader reads the black stripe on the back of older cards. These are the cheapest option, often $20 to $30, but fewer cards use them now. A chip reader reads the small metal square on modern cards and is more find; these cost $30 to $50. A contactless reader accepts payments from cards, phones, and smartwatches held near the device without touching it; these usually cost $50 to $100. Many readers combine all three — they read stripes, chips, and contactless payments in one device.
The reader you choose should match how your customers actually pay. If most of your customers use phones or smartwatches, a contactless reader is worth the extra cost. If you are selling to older customers or in a place where card readers are not common, a chip reader that also reads stripes covers most situations.
Your phone or tablet and internet connection
Your phone or tablet must run either iOS (Apple) or Android (Google). It does not need to be new or expensive — a phone from three or four years ago works fine as long as the operating system can be updated. The phone needs enough storage for the payment app, which usually takes less than 100 megabytes.
Your phone must have a working internet connection at the moment you process each payment. This can be mobile data (the connection your phone uses to make calls and send texts) or WiFi. If your internet drops while a payment is processing, the transaction may fail and you will need to try again. Some payment processors let you take payments offline and send them later, but this is slower and riskier — the payment might fail when it tries to go through.
If you are in a location with weak signal, test your connection before you set up. A mobile hotspot from another phone or a portable WiFi device can be a backup if your main connection is unreliable.
The payment processor and their app
A payment processor is the company that actually moves money from the customer's bank to yours. They provide the app you read to your phone, the card reader you use, and the bank account connection that sends you the money. Common processors include Square, PayPal, Stripe, and Clover, though there are many others.
You sign up with a processor, read their app, and connect your card reader to it. The app shows you a list of transactions, lets you refund payments if needed, and tracks your sales. You do not buy the app — it is free. The processor makes money by taking a small percentage of each transaction (usually 2 to 3 percent) or charging a monthly fee, or both.
Different processors have different features. Some are designed for small sellers at markets or events. Others are built for restaurants or retail shops. Some let you invoice customers (send them a bill they pay later). Some include inventory tracking. Before you sign up, think about what you actually need — a straightforward processor is often easier to use than one packed with features you will not touch.
Your business bank account
Most payment processors require a business bank account to send you the money. A business bank account is separate from your personal account and is registered under your business name. You will need to open one at a bank or credit union.
Some processors will send money to a personal account while you are starting out, but this is temporary and comes with limits on how much you can receive. Moving to a business account later is straightforward — you just update your banking information in the processor's settings.
A business bank account usually costs nothing to open if you have a business license or tax ID number. If you do not have either yet, ask the bank what documents they accept — some banks work with sole proprietors who have only a Social Security number and a business name.
Receipt printers and optional equipment
A receipt printer is a small device that prints a paper receipt for the customer. It connects to your phone through Bluetooth or WiFi. A basic receipt printer costs $100 to $300. You do not need one — most payment apps can send receipts by email or text message instead.
A receipt printer is useful if your customers expect a paper receipt, if you are in a retail location where receipts are standard, or if your internet is slow (printing is faster than sending an email). If you are selling at a market or doing one-time transactions, email or text receipts usually work fine.
Other optional equipment includes a cash drawer (if you also take cash and want to store it securely), a barcode scanner (if you sell multiple items and want to track inventory), or a second phone as a backup. None of these are necessary to start.
What you do not need
You do not need a physical store, a landline phone, a computer, or a traditional point-of-sale system. You do not need to buy software — the payment processor provides the app. You do not need a merchant account from a bank — the payment processor handles that. You do not need to be registered as a business to start, though you should register once you are earning regular income.
You do not need to buy a reader from the same company as your processor, though most people do because it is simpler. Some readers work with multiple processors, which gives you flexibility if you want to switch later.
Frequently Asked Questions
Can I use a reader from one company with an app from another?
Sometimes, but not always. Most readers are designed to work with one processor's app. Before you buy a reader, check the processor's website to see which readers they support. Mixing and matching can cause connection problems or prevent transactions from going through.
What happens if my phone dies during a payment?
The payment will not go through. The customer's card is not charged. You will need to restart your phone and try the transaction again. This is why a backup phone or a portable charger is useful if you are processing payments all day.
Do I need WiFi or is mobile data enough?
Mobile data is enough. WiFi is faster and more reliable if you are in one location, but mobile data works fine for most small sellers. Test your signal in the location where you plan to work before you start.
Can I use a tablet instead of a phone?
Yes. A tablet works the same way as a phone — it needs the payment app, a card reader, and an internet connection. Tablets have larger screens, which some people find easier to use, but they are more expensive and less portable.
What if I want to take payments but do not have a business bank account yet?
Some processors will send money to your personal account while you are getting started. This usually has limits on how much you can receive per month. Open a business account as soon as you can — it protects your personal finances and looks more professional to customers.