Free calculator
Bill splitter calculator
Enter what each person paid, add tip and tax, and choose an even or income-weighted split. You get each person's fair share and the smallest set of payments that settles everything.
Result
Subtotal $80.00 · Total with tip and tax $92.00
| Person | Paid | Fair share | Balance |
|---|---|---|---|
| Person 1 | $92.00 | $46.00 | $46.00 |
| Person 2 | $0.00 | $46.00 | -$46.00 |
Person 2 owes Person 1 $46.00
How to split a bill fairly
An even split works when incomes are similar. When they are not, splitting in proportion to income keeps the pain equal: if you earn 60% of the household total, you cover 60% of the shared cost. Tip and tax scale with the bill, so the same percentages apply to them.
To find who owes whom, subtract each person's fair share from what they paid. Positive means they are owed; negative means they owe.
Frequently asked questions
How do you split a bill fairly when incomes differ?
Use the percentage mode above and set each share to that person's portion of combined income.
Should tip and tax be split the same way?
Yes — they scale with the total, so the same split percentages stay fair.
Can I track this automatically instead?
Nest does this continuously for couples: log shared expenses, and it keeps the running balance and settles it each period.
Related: Splitwise alternatives for couples, how to split expenses with your partner and the 50/30/20 budget calculator.
Stop recalculating every month
Nest keeps the shared tab, splits every expense by your rules, and tells you who owes whom at the end of each period.
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