Rent is the easy part — utility splits are where roommate relationships go to die. Whose name is on the Wi-Fi? Why is the electricity bill ₹6,000 this month? Did the cook get paid? Most of the friction comes from not having a system, not from the actual numbers.
Here's a default that works for most Indian shared flats, with notes on when to deviate.
The default split table
| Bill | Default | When to deviate |
|---|---|---|
| Wi-Fi / cable | Equal | Almost never |
| Electricity | Equal | 60/40 in heavy AC summer if usage is lopsided |
| Cooking gas | Equal | Almost never |
| Water | Equal (often included in society) | If metered separately |
| Society maintenance | Equal | Almost never |
| House help (maid) | Equal | Person does only some rooms → only those pay |
| Cook | Among those who eat the food | If one roommate eats out always, exclude them |
| Groceries | Equal among cook users | Personal stuff (yogurt, snacks) is individual |
| One-time (RO filter, repair) | Equal | If only specific rooms benefit |
The bill-in-someone's-name problem
Wi-Fi, electricity, society maintenance, gas — all these typically have oneroommate's name on them (or, with luck, the landlord's). The non-named roommates get nervous about timely reimbursement, the named roommate gets nervous about chasing them.
The fix:
- Whoever's name is on the bill logs every payment in a shared tracker the day they pay. They mark themselves as the payer + everyone as a sharer.
- Others see the log + reimburse via UPI within 7 days (give it structure, not just "whenever").
- Use simplify-payments at month-end if there are multiple bills — instead of 5 small UPI transfers, do 1-2 round ones.
Don't over-engineer
The biggest mistake is trying to make every utility "perfectly fair". The cost of tracking individual electricity usage in a shared meter exceeds the unfairness of equal-splitting. The cost of measuring whose Wi-Fi consumed more bandwidth is higher than the ₹400/month bill itself. Default to equal; deviate only when the gap is large enough to actually affect someone's budget.
The exception is cook + cook-related groceries — these can be 50%+ of a roommate's monthly food cost, and one person eating out consistently while paying for cook + groceries is a real loss. Get this right.