Rent Splitter
Evenly, by income, by room size, or somewhere in between.
Using toolbook means you agree to our Terms and Privacy Policy.
What the household pays
Housemates
Enter everyone’s pay for the same period. Take-home or before tax both work, as long as everyone uses the same.
At 0% everyone pays the same. At 100% shares are fully proportional to income. Most households that argue about this settle somewhere in between, which is what the middle of this dial is for.
per month across 2 people
What each person pays
| Person | Income | Share | vs. even | % of income |
|---|---|---|---|---|
| Person 1 | — | $0.00 | — | — |
| Person 2 | — | $0.00 | — | — |
Shares add to the total exactly. Where a division leaves an odd cent, it goes to whoever has the largest fractional share rather than being rounded away.
No incomes entered yet, so this is currently an even split. Fill in a number for each person to weight it.
Nothing here is saved or sent anywhere — your incomes stay on your device. Close the page and it’s all gone.
Your files stay on your device
How to use it
Enter the rent, bills, and each housemate’s income to split the cost fairly. See each person’s share, and what percentage of their income it is. Nothing is saved.
Add up your rent and bills, add each housemate, and pick how to split: evenly, by income, or by room size.
Can’t agree? Most households land somewhere in between “everyone pays the same” and “pay by income”. Use the slider to find the middle ground.
Look at the “percent of income” column. An even split might be 18% of one person’s pay but 41% of another’s — seeing that side by side makes the conversation much easier.
Rooms very different in size? Split by room instead, using square metres, square feet, or any number you all agree on. Use the same kind of income for everyone (all take-home, or all before tax).
FAQ
How do you split rent by income?
Divide the total cost in proportion to each person’s income. The tool does that and shows each share as a percentage of income.
Is splitting rent by income fair?
It makes the burden equal rather than the amount. Some households love it, others don’t — that’s why there’s a slider.
How should we split rent with different-sized bedrooms?
Split by room size. Or move the slider partway, to split shared space evenly and bedrooms by size.
Gross or take-home income?
Either, as long as everyone uses the same one.
Are our incomes saved anywhere?
No. Everything stays on your device and is gone when you close the page.
How it worksFor the curious
The blend is computed once rather than averaged from two results: each person’s weight mixes an equal share and a proportional one — 0% is equal, 100% tracks income exactly. Averaging two already-rounded splits would produce shares that do not sum to the rent.
Splits are done in whole cents, and any leftover cent goes to whoever has the largest fractional share. Incomes are never sent anywhere or stored.