Moving In Together Cost Calculator

The predictable part is housing, and it's bigger than most couples expect: a security deposit plus the first month's rent, before you own a single thing. Deposits are typically one month's rent nationally, and often one and a half to two months in high-cost cities and states without a cap, so budget two to two and a half months of rent up front. Against a US median rent of roughly $1,385 a month in mid-2026, that alone is about $2,800 to $3,500, and far more in New York, San Francisco, or Los Angeles. On top of that come movers or a truck, furniture and household basics for whatever neither of you already owns, and utility setup fees or deposits. Because those three vary enormously by city and by how much furniture you already have between you, an average is close to useless. Add up your own numbers in the calculator above, then add a buffer of about 10%, because move-in costs overrun more often than not.

A useful floor is your full day-one total plus one extra month of shared costs. The day-one number covers the deposit, first month's rent, movers, furniture, and setup fees. The extra month means a late paycheque or a surprise repair in week three doesn't turn into borrowing from each other, which is where a lot of early money friction starts.

Proportional splitting is the fairest default. Work out each person's share of your combined income, then apply those percentages to the costs. If you earn $5,000 a month and your partner earns $3,000, you pay 62.5% and they pay 37.5%. The point is that the move costs you the same share of your income, so it feels equally affordable to both of you rather than equally expensive in dollars.

If you're buying it new for the shared home, treat it like any other one-time cost and split it by whatever method you've agreed. If one of you already owns furniture that's going into the shared space, count its resale value as their contribution to the move. What matters more than the split is agreeing upfront what happens to shared purchases if you separate later, because a jointly bought sofa with no agreement is a genuinely awkward conversation to have after the fact.

Only if you earn roughly the same. When there's a real income gap, a 50/50 rent split means the lower earner spends a much bigger slice of their paycheque on housing than the higher earner does, which builds quiet resentment fast. Many couples land on splitting rent proportionally while keeping small everyday things even, and this calculator lets you set the one-time and monthly splits independently for exactly that reason.

You don't have to. A joint account for shared bills is convenient, but plenty of couples keep separate accounts and simply transfer their share each month, which preserves financial independence and makes separating easier if it comes to that. What actually matters is that both of you know what's shared, what each person owes, and when it's settled. That's the part a tracking app handles better than a bank account does.

Four things save most arguments later: which costs count as shared and which stay personal, how you'll split each of those, who physically pays each bill and how the other person reimburses them, and what happens to jointly bought items if you split up. Write it down somewhere you can both see it. It's not unromantic, it's the same clarity you'd want with anyone you share a lease with.

Yes, completely free, and there's no signup. Nothing you enter is stored or sent anywhere. If you want the split applied automatically to every shared expense after you move in, that's what Halfway does, but the calculator works fully on its own.