How to split rent with your partner

Where to start: rent is the biggest bill

For most couples, rent is half or more of what the household costs each month. That's why the method matters here: on a $60 utility bill the difference between methods is a few dollars, on rent it's hundreds over a year.

Take a couple with take-home pay of $5,000 and $3,500 a month, and $1,600 in rent.

Method 1: fifty-fifty

Each of you pays $800.

• For the partner earning $5,000, rent is 16% of their pay.
• For the partner earning $3,500, it's 23%.

It's the easiest to run: the number never changes and there's nothing to recalculate. With similar incomes it's also the fairest. As the gap grows, the lower earner is left with less room for everything else.

Method 2: in proportion to income

Together you take home $8,500. The partner earning $5,000 brings in about 59% of it, the one earning $3,500 about 41%. On $1,600 of rent, that's $941 and $659.

• You both spend about 19% of your pay on rent.
• The higher earner keeps $4,059, the other partner $2,841.

Many couples find this the fairest option when incomes are far apart. The same idea works for every shared cost, and we walk through it in how to split bills with your partner. To skip the math, use the split bills by income calculator.

Method 3: by space

If one of you works from home and uses a room as an office, that room is theirs for most of the day. One way to account for it:

1. Divide the rent by the number of rooms. In a two-bedroom with a living room, three rooms, that's about $533 each.
2. The room used by one person alone is paid by that person: $533.
3. The rest, $1,067, is split in half: $533.50 each.

The partner with the office pays $1,066.50, the other $533.50. Use it with care: if working from home also means that partner spends less on commuting and lunches, you may already be even. A middle ground also works, for example putting only half of the office room on the partner who uses it.

If one of you owns the place

When one partner owns the home, there's no rent to split, but the home still costs money. The most common setups:

• The partner who moves in pays part of the running costs (utilities, HOA fees, groceries) but not the mortgage, because the mortgage builds equity that belongs to the owner.
• Or they pay a fixed monthly amount, below market rent, that you agree on together.

Whatever you decide, write it down: a few years in, it's easy to forget what you agreed. If you're married or living in Italy, who owns the home and the savings also depends on your property regime, explained in community or separate property in Italy.

Who pays the landlord, and how to keep track

Usually one person sends rent to the landlord, whoever is on the lease or has the handier account. The other pays back their share. There are three ways to do it:

• a monthly transfer of the share, on the same day each month;
• a joint account that rent comes out of, with each of you paying in your part (read the pros and cons of a joint bank account first);
• an expense sharing app for couples, where rent is logged once as a recurring expense and the balance between you includes everything else too.

The third has a practical upside: rent stops being a separate tally and lands in the same balance as groceries and utilities. The apps that do this are compared in our guide to expense sharing apps.

Which one to choose

• Similar incomes, same use of the place: fifty-fifty.
• Incomes far apart: by income, recalculated when a paycheck changes.
• One of you works from home with a room of their own: by space, or a middle ground.

You can always switch. More guides are in splitting costs.