How to track who owes what between roommates
Living with roommates, it gets harder to remember who owes whom as expenses pile up. One person buys the groceries, another pays the electricity, a third covers the internet, and at the end of the month everyone feels they paid more.
This guide covers three ways to keep a record, the logic of debt simplification that settles everything with the fewest payments, and the most common mistakes.
Why keep a record at all?
- It ends arguments: you look at the record instead of saying "I paid that".
- It makes small debts visible: $10 or $20 differences quietly add up.
- It simplifies moving out: when someone leaves, the balance is ready.
Three ways to track debts
1. Settle every time. Pay each other right after each purchase. It works in small homes with few expenses, but opening a banking app every time gets tedious.
2. Settle monthly. Everyone logs their expenses, the total is calculated at month end and each person pays once. It needs the fewest transfers, but you have to log consistently.
3. Shared pot. Everyone puts in a fixed amount and shared costs come out of it. If the pot runs out, or someone spends more, control gets harder.
For most homes, monthly settlement is the best balance, as long as expenses are logged the same day.
Debt simplification: who pays whom
In a three-person home these costs came up (example):
| Expense | Paid by | Amount | Share per person |
|---|---|---|---|
| Groceries | Alex | $90 | $30 |
| Electricity | Sam | $60 | $20 |
| Internet | Jordan | $30 | $10 |
| Total | $180 | $60 |
Each person's share is $60. Here is how much each person paid compared with what they should have paid:
| Person | Paid | Should have paid | Difference |
|---|---|---|---|
| Alex | $90 | $60 | +$30 (is owed) |
| Sam | $60 | $60 | $0 |
| Jordan | $30 | $60 | -$30 (owes) |
Going expense by expense would create six separate debts between the three of you. Using the net difference, the result is a single payment: Jordan pays Alex $30 and everyone is square. That is debt simplification.
What a good record includes
- Date: the day of the purchase.
- What for: description and category (groceries, electricity, internet).
- Amount: the total and each person's share.
- Who paid.
- How it was split: equally or with custom shares.
- Proof: a receipt or bill photo, if possible.
A 10-minute month-end routine
- In the last week of the month everyone checks their expenses and adds anything missing.
- Work out the total and each person's share.
- Look at each person's net balance.
- People who owe pay the same or next day.
- After paying, close the record and the person who is owed confirms.
Common mistakes
- Logging expenses later, when the amount and payer have been forgotten.
- Mixing personal purchases into the shared list.
- Assuming equal shares and never discussing different use (someone was away, someone had guests).
- Paying but never closing the record, so the same debt is chased twice.
- Keeping the record somewhere not everyone can see.
A spreadsheet works. Ev Ortağım does the same thing automatically: it splits each expense, shows everyone's current balance and closes payments with both sides' approval.
Frequently asked questions
How do roommates keep track of debts?
Log every expense the same day, work out each person's net balance at month end and settle with a single payment where possible. Keep the record where everyone can see it.
What is debt simplification?
Netting out the debts roommates owe each other so they can be settled with as few payments as possible. Six separate debts can reduce to a single payment.
Do roommates need an app to track debts?
Not necessarily. A spreadsheet is fine for small homes. An app automates the maths and makes sure everyone sees the same record.