Roommate Bill Splitting
Living with roommates shouldn't mean awkward conversations about who owes what. PartyTab keeps a running tally so everyone stays accountable.
Moving in with roommates?
Start a tab for your apartment. Log shared expenses as they happen.
Start a Roommate Tab →No app download. Share the link with your roommates.
How Roommates Use PartyTab
Create a Tab
One tab for your apartment. Add all roommates.
Log as You Go
Paid the electric bill? Bought toilet paper? Add it to the tab.
Settle Monthly
At month's end, see who owes who and square up.
Common Roommate Expenses
Rent
Split equally or by room size
Utilities
Electric, gas, water, internet
Groceries
Shared food and supplies
Cleaning Supplies
Paper towels, soap, etc.
Streaming Services
Netflix, Spotify, etc.
Household Items
Furniture, kitchen tools
Why Roommates Love PartyTab
- ✓Ongoing balance tracking
See at a glance who's ahead and who's behind on shared expenses.
- ✓Flexible splitting
Split some expenses 50/50, others by who uses them.
- ✓No app required for roommates
They can view and add expenses via a browser link.
- ✓Payment reminders (Pro)
Nudge roommates when it's time to settle up.
How to Split Rent, Utilities, and Shared Bills
Living together is cheaper than living alone—until the money gets fuzzy. One roommate's name is on the electric bill, another always grabs the paper towels, and rent is “close enough” to even. Three months in, someone's keeping a running tally in their head and starting to feel taken advantage of. That resentment, not the dollars, is what actually strains the apartment.
A shared tab fixes it by making the math visible to everyone:
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Rent— set each person's share once (evenly, by room size, or by an agreed premium) and it stays consistent month to month.
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Utilities— whoever's name is on the bill logs it when it arrives and is credited for fronting it, so they aren't out of pocket waiting to be repaid.
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Shared supplies— split household staples between the roommates who use them, and leave personal groceries off the tab entirely.
A quick example
Three roommates share a $2,100 apartment. The biggest bedroom takes a $100 premium, so shares are $800 / $700 / $600. Over the month, one covers the $150 electric bill, another buys $90 of shared supplies, and the third pays the $60 internet. Rather than reconciling four separate threads, PartyTab rolls rent and every shared cost into one ledger and tells each roommate the single amount to send at month's end.
Frequently Asked Questions
How should roommates split rent when bedrooms are different sizes?+
When rooms aren't equal, splitting rent 50/50 rarely feels fair. Common approaches are by square footage, by room desirability (private bath, natural light, closet space), or a simple agreed premium for the larger room. Decide the percentages together once, then record each person's share in PartyTab so it's the same every month with no re-litigating.
How do you split utilities between roommates?+
Most households split utilities evenly because usage is hard to meter per person. The friction is usually that one roommate's name is on the bill and they front it every month. Log each bill in PartyTab as it arrives so the person who paid is credited and everyone else's share is tracked — no more fronting hundreds of dollars and hoping to be paid back.
What's the fairest way to handle shared groceries?+
Separate truly shared staples (paper towels, dish soap, cooking oil) from personal food. Put shared items on the tab and split them; keep personal groceries off it. PartyTab lets you split a single Costco or grocery run between just the roommates who use those items, so nobody pays for someone else's snacks.
How do you keep track of who paid which bill?+
Use one ongoing tab for the apartment instead of a notes app or memory. Every time someone covers rent, a utility, or a shared run, they add it. The running ledger shows exactly who has paid what, and the settlement view shows who owes whom at any moment.
What happens when a roommate moves out mid-month?+
Settle the tab up to their move-out date. Because PartyTab tracks every expense individually rather than a single lump sum, you can split shared costs only across the dates and people involved, square up the departing roommate, and keep the tab running for everyone who stays.