Split the Bill in the USA: Tax, Tip & Fair Shares
Splitting a US restaurant bill comes down to three things: sales tax, the tip and who ordered what. Because tax and tip are added on top of menu prices, the total at the bottom is always higher than the sum of the dishes. Here is how it works and how to divide it fairly.
How a US restaurant bill is put together
In the United States, the price printed on the menu is almost never the final price. Sales tax is added at the end of the bill, and the rate depends on the state, county and city, commonly falling between about 4% and 10%. Some places have no state sales tax at all, so the same meal can cost a different amount depending on where you eat.
Tipping is also a normal part of dining out. For table service, 15% to 20% of the bill is customary, and many people treat 20% as the default for good service. Servers in the US are often paid a low base wage and rely on tips, which is why leaving one is expected. Many people calculate the tip on the pre-tax subtotal, while others tip on the post-tax total. Both are acceptable.
Watch out for auto-gratuity. Many restaurants add a fixed service charge (often around 18%) automatically for larger parties, commonly six or more guests. If it is already on the bill, you do not need to tip again unless the service was exceptional. Always read the receipt before adding a tip on the card slip.
Two worked examples (in $)
The examples below assume an 8% sales tax and a 20% tip calculated on the pre-tax subtotal. Your local tax rate and tip will differ, so adjust the numbers to match your bill.
Example A: Equal split
Four friends share a dinner where everyone ordered similar meals:
- Food and drink: $120.00
- 8% sales tax: $9.60
- 20% tip (on $120): $24.00
- Total: $153.60
- Each pays: $38.40 ($153.60 ÷ 4)
Equal splitting works best when everyone shared food and drinks evenly.
Example B: Go Dutch (itemised)
Each friend orders differently (food and drink total $120.00):
- Ava: $45.00 items + tax + tip = $57.60
- Ben: $25.00 items + tax + tip = $32.00
- Cara: $30.00 items + tax + tip = $38.40
- Dan: $20.00 items + tax + tip = $25.60
Each person pays their own items plus the same 8% tax and 20% tip on those items. Amounts are rounded to the nearest cent.
Splitting rent and bills with roommates
Sharing an apartment in the US usually means dividing rent, utilities and internet. Splitting rent evenly is simple, but it is not always fair. A larger bedroom, a private bathroom or a room with a balcony often justifies a bigger share than a small room. Splitting rent by room size or features keeps everyone happier.
Utilities such as electricity, gas, water and internet are commonly split equally, unless one person uses far more. Check your lease for who is named on it. In many leases all roommates are jointly responsible for the full rent, so agree on a clear system early. Apps like Venmo, Zelle or Cash App make it easy to send each person's share every month.
Need to calculate fair shares for your roommates? Open the rent split calculator.
Try the calculator in $
Whether you are dividing a brunch check or working out roommate rent, our free calculator handles the math instantly in US dollars ($). Split evenly or assign exact dishes using the Go Dutch tab, with tax and tip allocated proportionally. Once calculated, tap the WhatsApp share button to send a clean breakdown to your group chat. The tool needs no sign-up, is completely free, and nothing is stored: all calculations run privately in your browser.
US bill splitting FAQ
Is tip included in a US restaurant bill?
Usually not. In the United States the tip is added by the customer, typically 15% to 20% of the pre-tax subtotal for table service. The exception is auto-gratuity, which many restaurants add automatically for larger parties (often 6 or more guests), so check the bill before adding more.
Is sales tax included in US menu prices?
No. Menu prices in the US normally exclude sales tax, which is added at the end of the bill. The rate depends on the state and city, commonly somewhere between 4% and 10%.
Should I calculate the tip before or after tax?
Either is acceptable, but many people tip on the pre-tax subtotal because tax is not part of the service. Tipping on the post-tax total is also common and slightly more generous.
How do we split fairly if one person did not drink?
Separate the drinks from the food so non-drinkers only pay for what they ordered, plus their proportional share of tax and tip. An itemised calculator makes this simple by assigning drinks only to those who had them.
Not in the US? See the UK guide, the India guide or use the general bill splitter.
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