Should I tip on pre-tax or post-tax?

Convention in the US is to tip on the pre-tax amount, though tipping on the total (including tax) is also acceptable. The difference is small — on a $50 bill with 8% tax, the difference between tipping on pre-tax vs post-tax at 20% is about $0.80.

What is a good tip percentage at a restaurant?

In the US, 15–20% is standard for table service. 15% is acceptable for average service, 18–20% for good service, and 25%+ for exceptional service. In many other countries tipping is optional or not customary at all.

How do I split a bill unevenly?

Use the 'Custom split' toggle in the bill splitter. Enter the amount each person owes directly, or assign a percentage of the total bill to each person. The tool tracks the remaining balance so nothing is missed.

Is it rude not to tip in Japan?

In Japan, tipping is generally not practiced and can sometimes be considered rude or awkward. Excellent service is considered part of the standard. The customary tip percentage in Japan is 0%.

What does 'round up' rounding mode do?

Round up mode increases the tip to the nearest whole dollar so that per-person amounts are clean, round numbers. For example, if the raw tip is $11.40, it rounds up to $12, making the total $72 — easier to split evenly among 4 people ($18 each vs $18.35).

Tip Calculator & Bill Splitter

Split the bill, calculate the tip — in seconds.

Bill Amount

Country Preset

Tip Percentage

Number of People

Tax

Add tax

Tip Amount

$10.80

18% tip

Total Bill

$70.80

bill + tip

Per Person

$70.80

each

Rounding

Custom (Uneven) Split

Assign each person a share of the bill. Adjust amounts directly — remaining balance updates live.

Person	Their amount	Owes (with tip)

Remaining: $0.00

Tipping Customs by Country

Tipping norms vary dramatically around the world. Use the country preset above to automatically set the suggested tip percentage, or browse the guide below.

United States

Standard: 15–20%

United Kingdom

Standard: 10–15%

Canada

Standard: 15%

Australia

Standard: 10–15%

France

Optional: ~5%

Germany

Optional: ~5–10%

Japan

Not customary: 0%

China

Not customary: 0%

Mexico

Standard: 10–15%

Brazil

Service fee: 10%

India

Optional: 10%

Thailand

Optional: ~10%

How Tip Calculation Works

The tip amount is calculated by multiplying the bill (or pre-tax amount) by the tip percentage:

        Tip Amount = Bill Amount × (Tip % ÷ 100)

        Total = Bill Amount + Tip Amount

        Per Person = Total ÷ Number of People

Worked example

Dinner for 4 people: bill is $80.00. You want to leave 20% tip.

Tip = $80.00 × 0.20 = $16.00 · Total = $80.00 + $16.00 = $96.00 · Per person = $96.00 ÷ 4 = $24.00

Rounding modes explained

None: Tip and total displayed to the cent. Round tip up: Tip is rounded up to the nearest dollar (e.g. $16.40 → $17.00), making per-person splits cleaner. Round total up: The total is rounded up to the next whole dollar instead.

Frequently Asked Questions

Convention in the US is to tip on the pre-tax amount, though tipping on the total (including tax) is also acceptable. The difference is small — on a $50 bill with 8% tax, the difference between tipping on pre-tax vs post-tax at 20% is about $0.80. Use the "Add tax" toggle in the calculator to experiment.
In the US, 15–20% is standard for table service. 15% for average service, 18–20% for good service, and 25%+ for exceptional service. In many other countries tipping is optional or not practiced at all — use the Country Preset to see local norms.
Set the number of people, then open "Custom (Uneven) Split." You can type the exact amount each person owes. The remaining balance indicator shows what's left to assign, turning green when the full bill is covered.
In Japan, tipping is generally not practiced and can sometimes be considered awkward. Excellent service is considered part of the standard. The customary tip percentage in Japan is 0%. Select "Japan" in the Country Preset to pre-fill this value.
It increases the tip to the next whole dollar so per-person amounts are clean, round numbers. For example, if the raw tip is $11.40, it rounds up to $12, making the total $72 — much easier to split evenly among 4 people ($18.00 each instead of $17.85).