How Much to Tip, and How to Split the Bill

The check arrives. Everyone suddenly becomes very interested in their phone. Someone mumbles, "So... 20%?" And then the group math begins: fumbled calculations, uneven splits, and the lingering question of whether you're supposed to tip on the tax.

Here's how to work out the tip quickly, what's normal for different services, and how to split the bill.

Standard Tip Percentages

In the United States, standard tipping looks like this:

If you're outside the US, tipping norms vary wildly. In Japan, tipping can actually be considered rude. In much of Europe, a service charge is often included in the bill, and rounding up is sufficient. In Australia, tipping is appreciated but not expected.

How to Calculate Tips in Your Head

Here's the fastest mental math method for common tip amounts.

For 10%: Move the decimal one place left. A $47.80 bill → $4.78 tip.

For 15%: Find 10%, then add half of that. $47.80 → $4.78 + $2.39 = $7.17.

For 20%: Find 10%, then double it. $47.80 → $4.78 × 2 = $9.56.

For 25%: Divide the bill by 4, or find 20% and add 5% (half of your 10%). $47.80 → $9.56 + $2.39 = $11.95.

Or skip the mental gymnastics entirely and use our Tip Calculator. It calculates the tip, shows the total, and splits the bill between any number of people.

Tip on the Subtotal or Total?

There's an eternal debate: do you tip on the pre-tax amount (subtotal) or the post-tax amount (total)?

Etiquette experts say: Tip on the pre-tax subtotal. The tip is for the service, not for the tax.

In practice: Most people tip on the total because it's the number that's right there on the bill. On a $50 meal with 8% tax, the difference between tipping 20% on $50 versus $54 is just $0.80. Not worth overthinking.

If you want to be precisely correct, tip on the subtotal. If you want to be generous (and avoid math), tip on the total. Either is fine.

Splitting the Bill

Splitting evenly is simple: total divided by number of people. But "evenly" doesn't always feel fair when one person had water and a salad while another had three cocktails and a steak.

Options for fair splitting:

1. Even split — Fastest. Everyone pays the same. Works best when orders are similar.
2. Itemized split — Each person pays for what they ordered, plus their share of tax and tip. Fairer but slower.
3. Proportional split — Calculate each person's share of the subtotal as a percentage, then apply that to the total including tip.

Our Tip Calculator handles option 1 automatically — enter the bill total, tip percentage, and number of people, and it tells you what each person owes.

When to Tip More

• Holidays. If you're dining out on Christmas Day, New Year's Eve, or other major holidays, the server is working instead of being with family. Tip 25%+.
• Large groups. Many restaurants add an automatic 18–20% gratuity for parties of 6+. Check the bill before tipping on top.
• Exceptional service. Server went above and beyond? Tip reflects that.
• Difficult conditions. Terrible weather, understaffed restaurant, your kids made a huge mess — a bigger tip acknowledges the extra effort.

When to Tip Less (or Not at All)

• Already included. Check the bill for a service charge. If one's there, you're covered (though you can add a small extra for outstanding service).
• Counter service with no table wait. A dollar or two in the jar is fine.
• Self-checkout and self-service kiosks. That iPad guilt-tip screen spinning around at you? You're not obligated.

Genuine bad service is the one case where a lower tip is appropriate. But "the kitchen was slow" isn't the server's fault. Tip less only when the service itself — attentiveness, attitude, accuracy — was actually poor.

The Quick Way

Don't fumble with the check. Our Tip Calculator handles the math instantly: enter your bill, choose a tip percentage, add the number of people, and get each person's share. No app download, no sign-up, runs right in your browser. For more detailed percentage math, the Percentage Calculator has you covered.