How-to MeterEase blog
How to handle utilities when a tenant moves out mid-month
Tenants rarely move out on the last day of a utility billing period. Water bills in particular often run on the utility’s meter-reading cycle, not the calendar month, and the final bill can arrive weeks after the keys are returned. Here is a clean way to handle it.
Short answer: figure the unit's full share for the billing period as usual, then multiply by the days the tenant actually occupied the unit divided by the days in the billing period. Bill the rest to the next tenant, or to yourself if the unit sat vacant.
Why move-outs get messy
Three things make move-outs harder than a normal month:
- The bill period does not match the lease. A bill covering March 14 to April 12 straddles two calendar months and possibly two tenants.
- The bill arrives late. You may return the deposit before the final utility bill comes in.
- Someone else is involved. A new tenant, or a vacant period you pay for, shares the same period.
Planning for these ahead of time keeps the final accounting from turning into a negotiation.
The proration formula
Tenant’s share = unit’s full share for the period × (days occupied ÷ days in the billing period)
Count days the same way every time. A common convention is to count the move-out day as occupied and the move-in day as occupied by the new tenant. Whatever you choose, write it down.
Worked example (made-up numbers)
A four-unit building gets a $520 water and sewer bill covering March 14 to April 12, which is 30 days. The lease splits by square footage and the owner pays any vacant share.
- Unit 2 is 900 sq ft out of 3,600 sq ft total, so its full share is 900 ÷ 3,600 × $520 = $130.00.
- The Unit 2 tenant moved out on March 25. Counting March 14 through March 25 inclusive, they occupied the unit for 12 days.
- Their prorated share is $130.00 × 12 ÷ 30 = $52.00.
What about the other 18 days ($78.00)?
- If a new tenant moved in on April 1, they occupied it April 1 to April 12, or 12 days, and owe $130.00 × 12 ÷ 30 = $52.00.
- The remaining 6 days (March 26 to March 31) were vacant. Under an owner-pays-vacancy rule, you pay $130.00 × 6 ÷ 30 = $26.00.
Check: $52 + $52 + $26 = $130. The other three units pay exactly what they would have paid anyway.
If your lease instead splits vacant shares among occupied units, the six vacant days get spread across the other units for that slice of the period. That is more math and more questions, which is one reason many landlords pay vacancies themselves.
The move-out proration calculator does this for you and shows each step, so you can paste the math straight into your final statement.
When the final bill has not arrived yet
You have a few options. Pick one and put it in the lease or move-out policy:
- Wait and bill later. Send the final utility statement once the bill arrives. Simple, but you are chasing a former tenant.
- Estimate and true up. Use the same period last year, or the average of recent bills, to estimate the final share. Hold that amount (where your state allows it), then send a true-up statement when the real bill arrives, with a refund or balance due.
- Read the meter. If the building has a master meter you can read, note the reading on move-out day. It will not tell you this unit’s use, but it helps you estimate the building’s bill for the partial period.
Deposit rules differ by state, including deadlines and what you can deduct. Check yours before holding back any utility amount. This is general information, not legal advice.
Partial periods in occupant-based splits
If you split by occupants, a move-out also changes the building’s total headcount. Two common approaches:
- Person-days. Count each person’s days in the period. A tenant of 2 people for 12 days contributes 24 person-days. Divide the bill by total person-days. This is the most precise.
- Snapshot. Use the headcount on a set day (for example, the first day of the period) and prorate only by the unit’s days. Simpler, less precise.
Either works if the lease says which one you use.
The move-out statement
A good final statement includes:
- The billing period and the utility’s total.
- The method and the unit’s full share, with the math.
- Move-in and move-out dates and how days were counted.
- The proration math ($130.00 × 12 ÷ 30 = $52.00).
- Any estimate, and a promise to true up when the actual bill arrives.
- A copy of the bill, or a note that you will send it when it arrives.
The bill-back letter generator creates a printable letter explaining a charge, and the tenant utility bill template gives you a layout.
Move-out checklist
- Note the move-out date and, if you can, a master meter reading.
- Tell the outgoing tenant how and when their final utility share will be billed.
- Mark the vacant days and the new tenant’s move-in date.
- When the bill arrives, figure each unit’s full share, then prorate the changed unit by days.
- Make sure the slices add up to the unit’s full share.
- Send the statement with the math and the bill.
- Keep a copy with the move-out file.
How MeterEase handles it
On the Growth and Portfolio plans, MeterEase prorates mid-month move-ins and move-outs, applies the vacancy rule you picked, and shows the math in each tenant’s email. You review it before anything is sent. See how it works and pricing, or try the free calculator first.
Split the bill and email every tenant in minutes
MeterEase reads the master bill PDF, applies your method and vacancy rule, and emails each tenant their share with the math shown and the source bill attached, after you check the numbers. Plans start at $14/month.