Receipt Calculator: Split Items, Tax & Tip on a $192.75 Dinner

By The Divvy Team · October 25, 2026 · 7 min read

A receipt calculator works out each person's total by adding their items to a slice of the tax and tip, sized by how much of the bill they ordered. The person who ordered 20% of the food pays 20% of the tax and tip. Here is one real-looking receipt, done line by line, so you can copy the steps or check them against any tool.

The formula

For each person:

their subtotal + (their subtotal ÷ total subtotal × total tax) + (their subtotal ÷ total subtotal × total tip)

Keep the cents unrounded while you work. Round only each person's final amount. Rounding at every step is how a bill ends up a few cents off.

Worked example: a $192.75 dinner for four

Maya, Jon, Priya and Sam go out. Maya puts the whole thing on her card. The receipt:

Item	Who had it	Price
Nachos	Maya, Jon, Priya (Sam skipped)	$24.00
Burger	Maya	$18.00
Lemonade	Maya	$4.00
Steak	Jon	$32.00
IPA	Jon	$8.00
Salad	Priya	$16.00
Wine	Priya	$12.00
Pasta	Sam	$26.00
Beer	Sam	$10.00
Subtotal		$150.00
Tax (8.5%)		$12.75
Tip (20% of the pre-tax subtotal)		$30.00
Total		$192.75

Step 1: split the shared dish first

The nachos cost $24 and three people ate them. That is $8 each. Sam pays nothing toward them. Do this before anything else, so each person has one clean subtotal.

Step 2: add up each person's subtotal

Maya: $18 + $4 + $8 nachos = $30
Jon: $32 + $8 + $8 nachos = $48
Priya: $16 + $12 + $8 nachos = $36
Sam: $26 + $10 = $36

Those add up to $150, the receipt subtotal. If yours don't match, an item went to the wrong person or got skipped.

Step 3: turn each subtotal into a share

Divide each person's subtotal by $150. Maya is 20%, Jon 32%, Priya 24% and Sam 24%. Then take that share of the $12.75 tax and the $30.00 tip:

Person	Subtotal	Share	Tax	Tip	Owes
Maya	$30.00	20%	$2.55	$6.00	$38.55
Jon	$48.00	32%	$4.08	$9.60	$61.68
Priya	$36.00	24%	$3.06	$7.20	$46.26
Sam	$36.00	24%	$3.06	$7.20	$46.26
Total	$150.00	100%	$12.75	$30.00	$192.75

The column adds back to the receipt total to the penny. That is your check.

The $192.75 receipt with each item circled in its owner's color and the $24.00 nachos circled in three colors for Maya, Jon and Priya.

The one-number shortcut

You can skip the separate tax and tip math. Divide the bill total by the subtotal: $192.75 ÷ $150 = 1.285. Multiply each person's subtotal by 1.285.

Maya: $30 × 1.285 = $38.55. Jon: $48 × 1.285 = $61.68. Same answers, one step.

For mental math at the table, multiply by about 1.30. It assumes roughly 9% tax and a 20% tip, and it lands within a dollar or two. Jon's $48 becomes $62.40 against the exact $61.68. Good enough to sanity-check a number, not good enough to send as a request.

Why dividing by four gets it wrong

Split that same $192.75 evenly and everyone owes $48.19. Maya, who ate $30 of food, overpays by about $9.64. Jon, who ate $48, underpays by about $13.49. The tip is where it bites. An even split charges Maya $7.50 of tip when 20% of her food is $6.00.

Bar chart comparing an even $48.19 split with item-based amounts: Maya $38.55, Jon $61.68, Priya $46.26, Sam $46.26.

Even splits do work in one case. Take an $80 bill with $6.40 tax and a $16 tip. The total is $102.40, or $25.60 each among four. If everyone ordered similar food and nobody skipped a course, divide by four and go home. Anything lopsided, use the item method above.

Tip, gratuity and discounts

Tip on the pre-tax subtotal. That is the usual convention. On a $100 meal with 15% tax, a 20% tip is $20, not $23.
Check for auto-gratuity. Parties of 8 or more often get 18–20% added to the bill. It is calculated on the bill, so it follows the same proportional rule. Don't tip on top by reflex. If you're unsure what a line is, service charge vs tip covers how to read it.
Take discounts off first. A gift card or credit comes off the bill total before you work out shares.
Drink-only taxes go to the drinkers. Some places print a separate drink tax line. Say the tab has $9.25 in sales tax plus $4.50 at a 15% drink tax, so $13.75 in tax lines. That $4.50 came from $30 of drinks, so split it among the people who ordered them.

For more on the tip side, see the guide to splitting tax and tip fairly.

Rounding leftover cents

Some bills don't divide cleanly. Split $10.00 three ways and you get $3.33 each, which is $9.99. Someone has to cover the extra cent. Give it to one person: $3.34, $3.33, $3.33. The shares then add to exactly what was charged, and nobody argues about a penny.

Doing it by hand or with a receipt calculator

By hand, this dinner takes a few minutes. With eight people and two shared pitchers, it takes a lot longer. The free bill split calculator does the same math: split evenly or by item, with tip. Enter each person's items, and it gives you the totals. For a longer walk-through of assigning dishes, see how to split a bill by item.

If you would rather not type line items at all, scan the receipt instead.

Getting paid back after you fronted it

Maya paid $192.75. Her own share is $38.55. So the others owe her:

Jon: $61.68
Priya: $46.26
Sam: $46.26

That is $154.20 in all. Maya covers the remaining $38.55 herself. Send each person their own number and the ask is easy to answer. Nobody has to open a spreadsheet.

Divvy bill splitting does these steps for you on iPhone. Point the camera at the receipt and it reads every line item, the tax and the tip. Tap a name on each item to assign it, and split a shared dish like the nachos between the people who ate it. Tax and tip are split by each person's share of the items. Each person's share becomes a Venmo or Cash App request in one tap, with reminders until it's paid. Friends don't need the app or an account: they open a share link, see what they owe, and pay. Divvy is free to download.

Send the requests the same night, while everyone still remembers the nachos.

Frequently asked questions

What if the restaurant already added a gratuity to the bill?

Don't add a second tip by default. Auto-gratuity is calculated on the bill, so split it the same way as tip: each person's subtotal divided by the total subtotal, times the gratuity amount. Add extra only if you want to tip beyond it.

How do I handle someone who only had a drink?

Give them just that drink as their subtotal. Their share of tax and tip shrinks with it. If a $4 soda is 2.7% of a $150 subtotal, that person owes about $5.14 at the 1.285 multiplier.

Does this work for groceries or other receipts with line items?

Yes. The method is the same for any receipt: assign items, split shared ones among the people who used them, and spread tax in proportion. Divvy's camera scan reads line items on restaurants, groceries, travel and anything else with line items.

Do my friends need to install an app to pay me?

Not with Divvy bill splitting. Friends open a share link, see what they owe, and pay. They don't need the app or an account. You can also copy the amount and ask for it by bank transfer, Wise, Revolut or in a chat.

Should I round each person's share up?

Round only the final per-person total, to the nearest cent. If the shares then add to a cent more or less than the bill, assign the extra cent to one person so the total is exact.