Tip & Split the Bill

Excel Formulas › Business

All versionsROUNDUP

Split a restaurant bill with tip in a couple of cells. Add the tip to the total, divide by the number of people, and optionally round each share up so the tip is never short.


Quick formula: for a bill in B1, tip rate in B2, and people in B3:
=B1 * (1 + B2) / B3
Bill times (1 + tip) gives the grand total; dividing by the headcount gives each person’s share.

Functions used (tap for the full reference guide):

The example

A $120 bill, 18% tip, split 4 ways.

AB
1Bill$120.00
2Tip 18%$21.60
3Total$141.60
4Each (of 4)$35.40

The formula

Per-person share with tip:

=B1 * (1 + B2) / B3 // $120 × 1.18 ÷ 4 = $35.40

How it works

Three steps folded into one formula:

  1. Add the tip by multiplying the bill by (1 + tipRate)1.18 for 18%.
  2. Divide by the number of people for each share.
  3. Want to tip on the pre-tax amount? Compute the tip on the subtotal, then add tax separately.
  4. To make sure the pooled tip is never short, round each share up with ROUNDUP (see the variation).

Round up so you never under-tip: =ROUNDUP(B1*(1+B2)/B3, 2) rounds each share up to the cent; with a few people that pads the tip by a few cents total — better than coming up short. Round to the dollar with ROUNDUP(…, 0) for easy cash splits.

Try it: interactive demo

Live demo

Set bill, tip %, and people.

Total · Each

Variations

Round up each share

Never under-tip:

=ROUNDUP(B1*(1+B2)/B3, 2)

Tip on pre-tax

Tip the subtotal, add tax after:

=(subtotal*(1+tip) + tax) / people

Just the tip

Total gratuity:

=B1 * B2

Pitfalls & errors

Zero people divides by zero. Guard the headcount or ensure it’s at least 1.

Tip base. Tipping on the post-tax total tips a bit more than tipping on the subtotal. Decide which you mean.

Rounding direction. Plain ROUND can make the shares sum to slightly less than the total; ROUNDUP guarantees you cover it.

Practice workbook

📊
Download the free Tip & Split the Bill practice workbook
A bill-splitter with tip, the round-up, pre-tax, and tip-only variants, plus 4 challenges with answers. No sign-up required.

Frequently asked questions

How do I split a bill with tip in Excel?
Use =bill * (1 + tipRate) / people. Multiplying by (1+tip) adds the gratuity, and dividing by the headcount gives each share.
How do I make sure the tip isn't short when splitting?
Round each share up: =ROUNDUP(bill*(1+tip)/people, 2). This pads the pooled tip by a few cents rather than coming up short.
Should I tip on the pre-tax or post-tax amount?
Either is fine, but be consistent. Tipping the subtotal (pre-tax) tips slightly less; some prefer to tip the full total.

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Related formulas: Roundup & rounddown · Invoice total with tax · Percent change & % of total

Function references: ROUND · ROUNDUP