Landlord guide
How to split one electric or water bill among your tenants
In a boarding house or rental building, one meter often covers a dozen rooms. That single bill has to be divided fairly — and the method you pick determines whether it stays a bookkeeping task or turns into a monthly argument. Here are the three approaches landlords use, the arithmetic behind each, and where the utility rules come in.
Why one bill becomes your problem
The account is in your name, so the whole bill is your debt on the due date — whether or not the tenants pay you. A ₱4,000 bill across twelve rooms is roughly ₱333 each, and the arithmetic has to survive twelve people checking it.
The monthly unit of electricity is billed in kilowatt-hours, and your total consumption is the sum of everything in the building: each tenant's lights, air conditioning, appliances, and the common areas you run yourself — the hallway lights, the water pump, your own unit.
Keep your own consumption separate. If you live in one of the units, decide upfront whether your unit is metered like everyone else's or treated as a cost you absorb. Both are acceptable; what causes arguments is a rule that appears without warning.
Method 1 — Split equally
The simplest approach, and the right one when usage is broadly similar across units.
share = (total bill − common-area cost) ÷ occupied units example Meralco bill ₱4,120 less common areas −₱620 (hallway, water pump, your unit) ÷ 12 occupied units = ₱350 ÷ 12 units = ₱291.67 per unit, rounded to ₱292
Take the remainder — ₱4 in the example — rather than letting the arithmetic drift. Assign it once, openly, instead of absorbing it silently or hoping nobody notices.
Weakness: it does not respond to actual usage. Two households running air conditioning through a Manila summer subsidise the room with the broken window unit — and they will say so.
Method 2 — Split by occupancy
When occupancy varies but usage is broadly similar, weight by headcount. A room shared by three people uses more than one occupied by a single person.
total occupant units = 15 people across 12 rooms share per person = ₱3,500 ÷ 15 = ₱233.33 Room 1A · 3 people ₱700.00 Room 1B · 1 person ₱233.33 Room 1C · 2 people ₱466.67 …
Weakness: treats a student who studies all night the same as someone who is away for work all week.
Method 3 — Sub-meter and bill by reading (the defensible one)
Give each unit its own meter, read it on the same day each month, and bill the difference between readings multiplied by the rate. This is how it is meant to work, and it is the only method that survives a tenant disputing the number.
consumption = current reading − previous reading amount = consumption × rate example (electricity) previous reading 12,480 kWh current reading 13,215 kWh consumption 735 kWh × rate ₱7.42 = ₱5,453.70 → billed to that unit then reconcile with the Meralco bill: sum of all unit bills + common areas = total billed
Two things make this hold up in practice:
- Read every meter on the same day. A day out of sync shifts usage between tenants unpredictably.
- Carry the rate over, not just the reading. Utilities adjust rates mid-period; record the rate used at reading time so a rate change can't be mistaken for a tenant using more.
The reconciliation step matters: if your unit bills don't add up to the utility bill, the difference is leakage — unmetered common areas, a shared riser, or a meter that drifted. Better to discover that in the arithmetic than in a tenant's complaint.
Where the utility rules come in
Two things are worth confirming with Meralco or Maynilad before you restructure anything:
- You generally cannot consolidate dwelling units onto one account under additional or fictitious names. The account holder stays liable for the entire bill, so adding names creates liability without reducing any of it. Billing a dwelling unit separately means a separate meter, arranged with the utility.
- Sub-metering may need their sign-off. Utilities differ in how they treat private sub-meters used for re-billing. Ask what documentation they require before you install, rather than after.
Treat these as the questions to ask your utility, not as settled rules — your provider's current requirements are what binds you, and they change.
What tenants should see on a statement
Whatever method you use, the tenant-facing number should be boring and itemised. Four lines beat a total every time:
October 2026 — Room 1A Rent ₱4,500.00 Electricity (86 kWh) ₱638.12 Water ₱185.00 Less payments received −₱5,323.12 ───────────────────────────────────── Balance due ₱0.00
Show the previous and current readings, the consumption they imply, and the rate applied. A tenant can check that multiplication in their head, and a number they can verify is a number they won't dispute.
Doing this by hand every month
Twelve units means twelve readings, twelve multiplications, a reconciliation against the utility bill, and then a message to each tenant asking for money. RentBase-PH does that loop for you: record each meter reading once, and each tenant's statement shows their share, their balance, and a link to pay by GCash or bank transfer.
Common questions
Can I add tenants' names to my Meralco bill?
No. Consolidating meters under fictitious or additional names on a single account is not allowed — the account holder is responsible for the whole bill, and adding names creates liability without reducing it. Each dwelling unit that will be billed separately must have its own meter, which you arrange with the utility.
Is it legal to charge tenants for utilities?
Charging a tenant for their consumption of water, electricity or other utilities is standard practice and normally permissible, provided the charge is reasonable, measured, and what the tenant sees matches what you were billed. Charge only what the tenant caused, and keep the evidence.
Equal split or metered split?
Equal split is only fair when occupancy and usage are similar. A unit where four people share a shower uses far more water than a unit occupied by one person. Metered split follows actual consumption and survives a disagreement; equal split is simpler and easier to explain.
More guides on rent collection and landlord admin, or read the RentBase-PH FAQ.