How to Pay for Things in the United States

The Price You See is Never the Price You Pay

The number on the menu, the shelf tag, or the hotel booking site is not what leaves your bank account. Two invisible costs get added after you commit: sales tax, which state and local governments levy, and the tip, which the service worker expects as their wage. Together they push your final bill 25% to 35% above the listed price.

Sales Tax Arrives at the Register

Sales tax is not included in the displayed price of anything you buy, from a coffee to a car rental. The rate depends on the state, the county, and the city where you make the purchase. Combined rates range from 0% in states like Oregon and Montana to over 10% in parts of Alabama, Louisiana, and Tennessee. The tax applies to restaurant meals, hotel rooms, rental cars, and most goods. Groceries are exempt in most states but taxed in a minority. You do not see the final price until the cashier hits the total button. Budget for 8% to 12% extra on every purchase. Treat anything under that as a bonus.

Tipping is Not Optional, it is How Wages Are Paid

Sit-Down Restaurants and Bars

In sit-down restaurants where a server takes your order at the table, tipping 18% to 22% of the pre-tax bill is mandatory. Federal law allows restaurants to pay tipped workers as little as $2.13 per hour. The tip is not a bonus for good service. It is the server's income. Failing to tip, or tipping 10%, is understood as withholding wages, not expressing dissatisfaction. If service is genuinely bad, speak to a manager and leave 15%. Do not use a low tip as a protest.

At bars, tip $1 to $2 per drink when paying cash, or 15% to 20% of the total if you run a tab on a card.

Services and the Grey Zone

For taxis and ride-hailing, tip 15% to 20% of the fare. Ride-hailing apps prompt you to add a tip after the trip. Hotel housekeeping gets $2 to $5 per night, left daily in an envelope or under the key card. Staff changes day to day. Bellhops get $1 to $2 per bag. Food delivery drivers expect 15% to 20% of the order total, with a minimum of $3 to $5 in bad weather or for long distances. Tour guides get 10% to 20% of the tour cost. Group bus drivers get $1 to $2 per person.

Counter service and takeout are the grey zone. The payment screen will prompt you to tip. There is no fixed social obligation to do so, but 10% to 15% is common in urban areas. If you are picking up a pizza you ordered over the phone, zero is fine. If a barista hands you a tablet with tip options starting at 18% for pouring a black coffee, select the no-tip option and do not feel guilty.

Cards Dominate, but Cash Still Wins in Specific Places

Where Plastic Works

Visa and Mastercard are accepted almost everywhere cards are taken. American Express has notable gaps at small merchants and discount stores. Contactless payment via phone or watch is widespread in retail chains, grocery stores, pharmacies, and transit systems. It is not guaranteed at independent restaurants and bars. Always carry a physical card as backup.

Three Situations That Demand Cash

Rural areas, including most of the Great Plains, the Mountain West, and small towns in the South, have businesses that operate cash-only. Transactions under $10, like a slice of pizza or a farmers market item, are frequently cash-preferred. Any unattended terminal, particularly fuel pumps at gas stations and parking kiosks, may require a US ZIP code to process a foreign card. At a self-serve gas pump, a foreign Visa or Mastercard will often be rejected. The failure case: go inside the station, prepay with the attendant in cash, and pump the exact amount. Do not assume the pump will take your card.

Foreign-issued cards with a Visa or Mastercard logo are accepted at attended terminals. The exception is some unattended machines. If you drive a rental car and need fuel at 1 am in rural Wyoming, the pump will reject your card. Carry at least $60 in small bills for that exact scenario.

ATMs, Fees, and the Dynamic Currency Conversion Trap

Finding and Paying for Cash

ATMs are ubiquitous in cities and towns but sparse in national parks, remote rural areas, and on some Native American reservations. Bank-owned ATMs charge a fee to non-account holders, typically $2 to $5 per withdrawal. Privately owned ATMs, found in convenience stores, bars, and hotels, charge higher fees that vary with location. Your home bank may add its own foreign-transaction fee and out-of-network fee on top. One withdrawal at a private ATM can cost you $8 to $12 in total fees.

Always Choose US Dollars

When you insert a foreign card at an ATM or point of sale, the machine may offer dynamic currency conversion. It asks whether you want to be charged in your home currency or in US dollars. Always select US dollars. DCC applies an exchange rate set by the merchant's payment processor, typically 3% to 7% worse than the card network's wholesale rate. If you are charged in your home currency without consent, dispute it with your card issuer. The same rule applies at a merchant terminal: when it asks for currency choice, pick USD.

How Much Cash You Actually Need

For a 14-day trip across multiple states, you do not need more than $300 in cash at any one time. Break it into $20s, $10s, $5s, and $1s. The $20 bill is the largest denomination commonly accepted in retail. $50 and $100 bills are difficult to spend at small businesses. They may refuse them due to counterfeiting concerns or lack of change. Keep larger bills for hotel check-in or car rental deposits if needed.

You will use cash for: tipping housekeeping daily, paying at farm stands and small-town diners, buying from food trucks, splitting a group bill at a bar, and feeding a parking meter that does not take cards. You will use cards for everything else. Do not carry more than $100 on your person in a major city. Theft from rental cars is a real problem in national park parking lots and urban neighborhoods. Use the hotel safe for the rest.

The Failure Case That Catches Most Visitors

The Gas Pump Trap

The most common mistake is assuming that a foreign Visa or Mastercard will work at an unattended gas pump. It will not. The pump asks for a US ZIP code, your card is declined, and you are stuck at a rural station with no attendant on duty. The fix: use a pump with a card reader that accepts chip-and-PIN, or go inside and prepay with cash. If it is 1 am and the station is closed, you are stranded until morning. Fill your tank before leaving a town, and keep cash for that purpose.

The Menu Math Mistake

The second most common mistake is underestimating how much sales tax and tip inflate your restaurant bill. A $30 entree, a $12 cocktail, and an $8 dessert on the menu add up to $50 listed. At 10% combined sales tax and a 20% tip on the pre-tax subtotal, you pay $60 for the meal, plus $5 in tax, plus $10 in tip, for a total of $75. That is 50% more than the menu total for the food alone. Run the mental math before you order, not when the check arrives.