Roommate finance guide

How to split bills with roommates — without the arguments.

The most common source of roommate conflict isn't noise or cleaning. It's money. Here's how to split bills fairly, track who owes what, and handle it when someone doesn't pay.

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the 4 methods

Choose the method that fits your situation.

Method 1 · Equal split

“Everyone pays the same.”

Simple but can feel unfair if one person uses significantly more. Works well for shared services.

Best for: utilities, internet, streaming

Not ideal for: rent when rooms differ in size

Method 2 · Proportional by room size

“Bigger room, bigger share.”

Each person pays a percentage based on their room size. Common for rent when rooms are different sizes.

Formula: Your room sq ft ÷ Total sq ft × Total rent

Best for: rent

Method 3 · Proportional by income

“More income, more contribution.”

Each person pays a percentage based on their income. Fairer in theory but requires financial transparency from everyone.

Best for: long-term living situations with trust

Method 4 · Usage-based

“You use it, you pay for it.”

Track actual usage and split accordingly. Requires effort to track but eliminates arguments about fairness.

Best for: groceries, toiletries, cleaning supplies

what to include

Every bill — and how to split it.

Bill type	Recommended method	Notes
Rent	By room size	Factor in amenities (en-suite, windows)
Electricity	Equal or usage-based	Smart plugs help track per-outlet usage
Gas	Equal	Hard to track individually
Internet / WiFi	Equal	Everyone uses it equally
Streaming services	Equal	Netflix, Spotify, etc.
Groceries	Usage-based or separate	Easiest to keep completely separate
Cleaning supplies	Equal	Shared household resource
Toilet paper / supplies	Equal	Track automatically with Coun5el

Track all of this automatically. Coun5el logs every payment in real time, sends reminders for late payments, and documents disputes — so your records are always current.

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the paper trail problem

The handshake agreement always fails.

The mistake

Verbal agreements about bill splitting are impossible to enforce. When someone “forgets” they owe $200 for March utilities, you have no record.

What you need

A written agreement on split method. A monthly record of who paid what. Documentation of any disputes — including dates, amounts, and responses.

What Coun5el does

Tracks all payments automatically — logged, timestamped, and always current. When something goes wrong, the record is already built.

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when someone doesn't pay

Step by step — what to do next.

Days 1–3

Written reminder. Send a message — text or email. Keep it factual: “March utilities of $87 were due March 1st. Please pay by [date].” Keep a copy.

Days 4–7

Formal written notice. If no response, send a more formal written notice referencing your agreement. This strengthens your paper trail.

Ongoing

Document everything. Every payment, every reminder, every response — logged. If the situation escalates, this documentation matters.

If needed

Know your options. Small claims court (up to $10,000 in NY, $12,500 in FL). Mediation through your building. Coun5el's AI arbitration for co-living members.

Track bills automatically

Track bills automatically with Coun5el

Payments logged in real time
Automatic reminders for late payments
Dispute documentation built in
Free for one home

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frequently asked

Common questions.

By room size is generally considered fairest — divide each room's square footage by total apartment square footage to get each person's percentage.

For high-variance utilities like electricity, consider smart plugs that track usage per outlet. For most bills, equal split is simpler and avoids constant negotiation.

Document everything in writing first. If unpaid bills are significant, small claims court is an option in every US state — filing fees range from $30 to $75. Coun5el's arbitration handles disputes within co-living arrangements.

Apps like Splitwise work for tracking. But they don't help when someone refuses to pay — for that you need documentation and a formal process.

Only if your agreement specifically allows it. In NY, security deposits are regulated under GOL § 7-103. In co-living arrangements with a Membership Hold Fee structure, the terms of your agreement apply.

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