What this document is
Living together multiplies money decisions: rent, electricity, water, internet, gas, cleaning supplies, the occasional repair. A roommate expense agreement is the household's money constitution — it fixes each person's rent share, how bills are split, when everyone pays, and who actually sends the money to the landlord and providers. Unlike a one-off expense split, it is built for repetition: the same amounts, the same dates, every month.
It also covers the moments that strain house-shares most: the security deposit and moving out. If three roommates split a THB 12,000 condo with one name on the lease, that lease-holder is personally exposed for the whole rent and the whole deposit. This agreement records each person's deposit contribution, requires notice before leaving, and defines how a departing roommate's share and deposit are handled — the disputes that otherwise end friendships.
When to use it
- Moving in with friends or acquaintances and splitting rent and bills for the first time.
- One roommate holds the lease and collects from the others, and wants that arrangement — and their protection — in writing.
- Roommates share costs beyond rent: internet, a cleaner, gas bottles, shared groceries or supplies.
- A new person is joining an existing house-share and the deposit and share arithmetic needs to be reset.
- A house-share has already had one payment argument and wants the rules written before the next one.
When not to use it
- Between tenant and landlord — that relationship belongs in a lease or room rental agreement, not this document.
- Couples merging their overall finances, which is a broader conversation than expense-splitting.
- Subletting a room for profit, which needs the landlord's consent and a proper rental document.
- When one roommate is covering another's share as a loan — record that separately as a loan or debt acknowledgment.
Information you will need
- Names and contact details of all roommates
- The address, the total rent, and who is named on the lease
- Each roommate's rent share and the date it is due each month
- Who transfers the rent to the landlord, and by which method
- Which bills are shared — electricity, water, internet, gas — and the splitting rule for each
- Each person's contribution to the security deposit, with the payment records
- The notice period a roommate must give before moving out
- How a departing roommate's deposit share and final bills are settled
- How shared purchases for the house (appliances, furniture) are owned and split if someone leaves
Clauses included
Roommates and property
Lists everyone in the house-share, the address, and who holds the lease with the landlord.
Rent shares
Fixes each person's monthly rent amount and the day it must reach the person who pays the landlord.
Bill splitting
States which bills are shared and how each is divided — equally, by room, or by usage.
Payment flow
Names who collects and forwards rent and bills, and the payment method so every month leaves a record.
Security deposit shares
Records what each roommate contributed to the deposit and that refunds follow those proportions.
Late payment
Sets the grace period and what happens when a share is late — including that late fees charged by the landlord fall on the late payer.
Moving out
Requires written notice, defines how the leaver's deposit is returned or transferred to a replacement, and settles final bills.
Shared purchases
Covers who owns jointly bought household items and how they are divided or bought out at the end.
What the guided builder asks
- 1PartiesWho is providing the money?
- 2AmountHow much is being provided?
- 3RepaymentWill it be repaid once or in installments?
- 4InterestWill interest apply?
- 5Late paymentWhat happens if a payment is late?
- 6Additional termsAdditional terms (optional)
- 7ReviewClauses included
- 8ExportExport PDF · Export DOCX
How to sign it
All roommates sign one document, and everyone keeps a copy — a shared folder or house group chat with the signed PDF pinned works well. When a roommate leaves and a new one arrives, sign a short dated update rather than relying on 'the same deal as before'.
Pay shares by bank transfer or e-wallet wherever possible, always to the same collector, with a consistent note like 'July rent'. Twelve months of consistent transfer records is the cleanest evidence a house-share can have — it protects the collector as much as the payers.
Keep deposit evidence carefully: each person's contribution record, and eventually the landlord's refund. Deposit disputes usually surface at move-out, sometimes years after the money was paid, when memories have completely diverged.
Common mistakes
- Leaving the whole arrangement on trust with only the lease-holder legally on the hook for everything.
- Splitting bills 'roughly' in cash each month, leaving no trail of who has actually paid what.
- Never recording deposit contributions, then fighting over the refund when the house-share ends.
- Having no notice period, so a roommate can vanish mid-month and leave the others covering their share.
- Buying a shared washing machine with no note on ownership, guaranteeing an argument when someone moves out.
- Letting one roommate run a month behind 'temporarily' without writing down the arrears and a catch-up date.
Frequently asked questions
Only my name is on the lease. How does this agreement protect me?
It converts your roommates' vague obligations into written ones: named shares, due dates, notice periods, and their responsibility for damage to their rooms. If a roommate leaves owing money, you hold a signed record of exactly what they agreed to pay, instead of trying to reconstruct it from memory and old chats.
How should utility bills be split if usage differs a lot?
Pick a rule everyone accepts and write it down — equal splits are simplest, but house-shares often split air-conditioning-heavy electricity by room or by agreed weights while keeping water and internet equal. The specific rule matters less than its explicitness; resentment grows in the gap between what people privately assume is fair.
A roommate is a month behind on their share. What should I do?
Put it in writing early: a friendly message stating the amount, the month it covers, and a specific catch-up date. If it continues, record the arrears as a signed note or debt acknowledgment with a payment plan. Chasing verbally for months and then exploding is the common pattern — written, early, and calm works better.
What happens to the deposit when one roommate moves out mid-lease?
The usual mechanism is replacement: the incoming roommate pays the deposit share directly to the outgoing one, and the agreement is updated with the new name. If there is no replacement, the remaining roommates either buy out the leaver's share or agree in writing that the leaver waits for the landlord's refund at the end of the lease.
Should shared groceries and small household items be in the agreement?
Keep the signed agreement for the structural items — rent, bills, deposit, moving out — and run small shared costs through a simple monthly tally or kitty that the agreement mentions but does not micromanage. A document that tries to govern every bottle of dish soap will simply be ignored.
Is this document legally binding between roommates?
An agreement about who pays what, signed by everyone, is generally treated as an enforceable arrangement between the signers in most countries — though for small amounts the practical remedies are reminders, deductions from deposit shares, and small-claims processes. Its daily value is preventing disputes, not winning them.
This template provides general document assistance and is not a substitute for legal advice. Legal requirements vary by jurisdiction, transaction type, and individual circumstances.