To split a restaurant bill when people order different things, add up each person's food and drinks, then share the tax and tip in the same proportions. If your dishes were $25 of a $120 food total, you pay about 21% of the tax and tip too. When everyone ordered roughly the same, an even split gives nearly the same answer with far less math, so many groups itemize only when one person's share would change by more than a few dollars.
This post works through the three common ways to split a dinner with one example, so you can see how far apart they land and pick the one that fits your table. For the cases where the card charge and the split don't line up (a tip that posts a day later, a rounded total, one dinner on two cards), see what to do when a Splitwise bill and the card charge don't match.
The example dinner
Say four friends go out. The food and drinks come to $120 before tax and tip:
- You: $25
- Friend one: $25
- Friend two: $30
- Friend three: $40, a steak and two cocktails
Tax is $12 and the tip is $24, so the bill is $156. You put it on your card.
Option 1: split it down the middle
$156 divided by four is $39 each. It takes ten seconds, and nobody has to read the receipt line by line.
The cost of that speed is easy to see here. You and friend one ordered $25 of food, but each of you pays $39. Friend three ordered $40 and also pays $39. The even split moves money from the lighter orders to the heavier one.
An even split is fair when the orders really were close. If everyone's food was within a few dollars of everyone else's, the gap after tax and tip is a dollar or two, and the speed is worth it.
Option 2: itemize, with tax and tip in proportion
To itemize, give each person their own food total, then scale it up by the same amount the tax and tip added to the whole bill.
The bill is $156 on $120 of food, so every dollar of food costs $1.30 once tax and tip are added. Multiply each person's food by 1.3:
- You: $25 times 1.3 is $32.50
- Friend one: $25 times 1.3 is $32.50
- Friend two: $30 times 1.3 is $39
- Friend three: $40 times 1.3 is $52
Those add up to $156, which is the check that nothing was dropped.
Compared with the even split, you and friend one each pay $6.50 less, friend two pays the same, and friend three pays $13 more. Thirteen dollars is real money for one dinner, and it all came from the cocktails and the steak.
Splitting the tax evenly but the food by order would be off, because friend three's larger order added more tax and a larger tip. Scaling by one number keeps it simple and keeps everyone in proportion.
Option 3: family style, split by plate
Family-style dinners are harder, because nobody has their own order. The fair way is to split each plate among the people who ate from it.
Say the same four friends share three plates instead, and friend two is vegetarian:
- A vegetable curry for $36, shared by all four: $9 each
- A lamb dish for $60, shared by the three who eat meat: $20 each
- Rice and bread for $24, shared by all four: $6 each
The food is still $120. Friend two's food comes to $15. Everyone else's comes to $35. Scale by 1.3 again: friend two pays $19.50, and the other three pay $45.50 each. Check the total: $19.50 plus three times $45.50 is $156.
An even split would have charged friend two $39, twice what their food cost with tax and tip. This is the dinner where someone usually ends up itemizing the receipt by hand, and it's worth doing.
Drinks work the same way. If the food was shared evenly but only two people drank, split the food four ways and give each drink to the person who ordered it.
When to itemize and when to split evenly
A simple rule to agree on before the bill comes:
- Split evenly when every share would land within about $5 of the even split.
- Itemize when any one share would move by more than that, which usually means drinks, a much pricier main, or someone who skipped part of the meal.
- Split by plate when the food was shared and not everyone ate everything.
You don't need to work out the itemized split to apply the rule. A quick look at the receipt usually tells you whether one order stands out.
Settling it the same night helps. Whoever paid adds the bill to Splitwise or sends requests with each person's amount, so nobody has to remember a week later what they ordered. Splitwise lets you enter a different amount for each person, so any of the three splits fits in one bill.
What the dinner costs in your budget
Whichever way you split it, the person who paid did not spend $156 on dining. Their spending is their own share, and what the others owe comes back as paybacks.
In the itemized version, your card shows $156, your friends owe you $123.50, and your dining spending is $32.50. When the three paybacks arrive on Venmo or by bank transfer, they settle what your friends owed. They don't lower your spending a second time, and they aren't income.
If a friend paid instead, nothing left your account that night, but you still spent your $32.50 on the day of the dinner. The money you send them later settles the debt. The same rule covers paying a friend back later.
Many budget apps count the full $156 for whoever paid, because the card charge is all the bank can see. Monio reads the split instead: connect Splitwise and it links each shared bill to its card charge, so only your share counts as spending and money friends pay you back isn't counted as income.
Questions
How do you split a restaurant bill when people order different things?
Add up each person's food and drinks, then share the tax and tip in the same proportions. On a $156 bill with $120 of food, each dollar of food costs $1.30, so a $25 order pays $32.50.
When is it fair to split the bill evenly?
When everyone ordered about the same. If every share would land within about $5 of the even split, splitting down the middle saves time and changes little.
How do you split tax and tip when people order different amounts?
Scale each person's food total by the same amount the tax and tip added to the whole bill. If tax and tip turned $120 of food into $156, multiply each person's food by 1.3.
How do you split a family-style dinner with a vegetarian?
Split each plate among the people who ate from it, then add tax and tip in proportion. In a $156 dinner where a vegetarian skipped a $60 lamb dish, their fair share was $19.50 instead of $39.