How to split rent and bills fairly with flatmates
Simple models for dividing rent, deposits, utilities and shared household costs without recurring arguments.
Pick a rent model
An equal split is simple when bedrooms and amenities are similar. If one person has a larger room, attached bathroom, balcony or parking, agree on a weighted split before anyone pays the deposit.
Separate fixed and variable bills
Divide fixed costs such as Wi-Fi and housekeeping using the agreed household split. Track variable costs such as electricity, groceries and shared supplies in a common ledger, with a clear monthly settlement date.
Plan for move-outs
Write down how the deposit, damage deductions and replacement-flatmate costs work. Keep proof of every shared payment and agree who is responsible for finding a replacement during the notice period.