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Invoice Tip Calculator

Work out a tip, split a bill, and see what each person owes to the penny.

Invoice Tools Reviews Free · no sign-up

Quick Tool Overview

The Tip Calculator works out a tip at any rate on the pre-tax or tax-inclusive amount, splits a bill evenly or by what each person had with the tip shared proportionally, and warns when a service charge means you are about to tip twice.

What it does
Works out a tip and splits the bill
You give it
The bill, the rate and the number of people
You get back
The tip, the total and what each person owes
Best for
Any table of more than three
Invoice Tools Free, unlimited use No sign-up Runs in your browser

About the Invoice Tip Calculator

Tipping arithmetic is easy and splitting a bill is not, which is why every group of six ends up with somebody doing it on a phone while the card machine waits.

This does both properly. The tip at any rate, on the bill before or after tax — a distinction worth having, because tipping on the tax-inclusive total means tipping on the tax. The split, either evenly or by what each person actually had, with the tip and any service charge shared in the same proportion. And the rounding, so the total comes to a sensible number and the difference is shown rather than quietly absorbed by whoever paid.

It also handles the case everybody gets wrong: a bill that already includes a service charge. Adding a tip on top of a 12.5% service charge is tipping twice, and the calculator says so rather than letting you do it by accident.

Key features of the Invoice Tip Calculator

Pre-tax or post-tax

Tipping on the tax is a choice, so it is shown as one.

Split by what each had

With tax and tip shared in the same proportion.

Service charge warning

A tip on top of 12.5% service is tipping twice.

Round the total

To a sensible figure, with the difference shown.

Work backwards

Enter the total you want to pay and it finds the tip.

How to use the Invoice Tip Calculator

  1. 1

    Enter the bill

    And say whether it already includes a service charge.

  2. 2

    Choose the tip rate

    Or enter a total you want to reach and it works the tip out backwards.

  3. 3

    Decide the base

    Tip on the bill before tax, or on the tax-inclusive total.

  4. 4

    Split it

    Evenly, or by what each person had, with the tip shared proportionally.

  5. 5

    Round it

    To a sensible total, with the difference shown rather than absorbed.

Frequently asked questions

Convention varies, but tipping on the pre-tax amount is the more defensible position — the tax is not part of what the service was worth. On a 20% tax, the difference on a £100 bill is about £3.

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