Utilities are the sneaky part of shared living. Rent is fixed and obvious, but electricity, water, gas, and internet arrive on different dates, in different amounts, under different people’s names. Handled badly, they’re a constant low-level source of friction. Handled well, you’ll barely think about them.
Step 1: List every shared utility
Start with a complete picture. Common shared utilities include:
- Electricity
- Water and sewer
- Gas / heating
- Internet and Wi-Fi
- Trash and recycling
- Shared streaming or services (if you split them)
Write them all down so nothing gets forgotten and quietly carried by one person.
Step 2: Decide how to split each one
Most households split utilities equally, and for good reason — it’s simple and usually close enough to fair. But consider these alternatives when usage is clearly uneven:
- By usage for things like electricity if one person runs a space heater or works from home all day.
- By room count if one bedroom is a shared office or has its own AC unit.
- Equal for everything else — internet and water rarely justify the effort of measuring.
Don’t over-engineer it. Equal splitting is the right call for most bills; reserve usage-based splits for genuine outliers.
Step 3: Assign each bill to a person
A clean approach: give each roommate ownership of one or two bills in their name. One handles electricity, another the internet, another water. Each person pays their bill in full, then the cost is split and tracked so it all evens out.
This avoids the nightmare of five people trying to pay one electric company, and it spreads the admin fairly.
Step 4: Track who paid what
Here’s where most setups fall apart. Bills land on different days, amounts vary month to month, and memories are short. Without a record, you get the classic “didn’t I pay more than you last month?” stalemate.
Log every bill as it’s paid — date, amount, who covered it, how it’s split. Over a few months this builds an accurate, transparent ledger that nobody can dispute.
Step 5: Settle up monthly
Because each person pays different bills, balances naturally drift. A monthly settle-up rebalances everyone with a single transfer or two. Keep it routine — same day each month — and it never becomes a Thing.
Handling common disputes
- A roommate who’s away half the month might reasonably pay less for usage-based bills like electricity. Agree on it in advance.
- A new roommate mid-cycle should only pay from their move-in date. Prorate it.
- A bill that spikes (hello, winter heating) — split it the same way as always, and budget for seasonality together.
Make it automatic with Splitser
Tracking utilities by hand is exactly the kind of chore people abandon. Splitser keeps it effortless: set up a household group, log each bill as it arrives, and watch balances update live. When settle-up day comes, it tells you precisely who owes who — no spreadsheet, no arguments.