Most landlords set utility responsibility once, in the first lease they ever wrote, and never revisit it. Then water rates climb 6% a year, a tenant starts running a space heater in a master-metered building, and suddenly the operating expense line that was supposed to be 4% of gross rent is sitting at 13%. Utilities are one of the few costs in rental property that a tenant's behavior can move dramatically — which makes the structure you choose more consequential than the rate you pay.

This is a guide to getting that structure right: which utilities to push to the tenant, which to keep, how to bill when the meters won't cooperate, and how to stay on the correct side of billing regulations that vary enormously by state and city.

Start With What the Meters Physically Allow

Before you decide anything about fairness or market norms, walk the property and answer one question per utility: is there a separate meter serving this unit only? That physical reality constrains every option you have.

Single-family and most duplexes built after 1980 are typically fully separated — electric, gas, and water each have their own meter per unit. Older multifamily, especially pre-1970 buildings, frequently have one water meter for the whole building, one gas line feeding a central boiler, and separated electric. Converting a master water meter to individual submeters runs $400–$900 per unit for a simple stacked-plumbing building and $1,500–$3,000 per unit when the plumbing runs horizontally and needs to be re-piped. Gas submetering is more expensive and often not permitted without utility company sign-off.

Document what you find, unit by unit. Meter number, location, utility account number, and who the account is currently in the name of. This sounds trivial until you're standing in a basement with six water meters and no labels trying to figure out which one belongs to the unit that just went vacant. Recording meter numbers and account details in a property record system — KeyLoft keeps this alongside the unit record so it's there at turnover — saves an hour of detective work every time a tenant moves.

Rule of thumb: if a utility is separately metered, the tenant should pay it directly to the provider. Every layer you insert between the tenant and their consumption weakens the incentive to conserve.

The Four Structures, and When Each One Fits

There are really only four ways to handle a utility, and each has a distinct risk profile.

  • Tenant-direct — tenant opens the account in their own name and pays the provider. Zero billing work for you, strongest conservation incentive, and the tenant's usage never touches your books. This is the default for anything separately metered.
  • Landlord-paid, included in rent — you pay, and the cost is baked into the rent number. Simple, but you absorb every rate increase and every long shower. Appropriate for utilities you literally cannot separate, like water in a master-metered fourplex, or where the amount is small and stable.
  • Submetered — you install private meters downstream of the master meter and bill actual measured consumption. The fairest allocation method that doesn't require utility separation, and it produces roughly 15–20% consumption reduction in water studies once tenants see their own numbers.
  • RUBS (Ratio Utility Billing System) — you take the master bill and allocate it by a formula: square footage, occupant count, bedroom count, or a blend. No hardware required. Legal in most states but restricted or banned in some jurisdictions, and it generates more disputes than any other method.

The mistake I see most often is landlords defaulting to "included in rent" for water because the meter is master, then never adjusting rent to reflect that. If the market rent for your two-bedroom is $1,650 and comparable units are tenant-paid-water, your effective rent is $1,650 minus $65/month in water — you're renting at $1,585 and telling yourself you're at market.

Getting RUBS Right (Or Deciding Not to Use It)

RUBS gets a bad reputation, mostly earned by operators who use it as a profit center. Used honestly it's a reasonable tool for buildings that can't be submetered economically.

The core rules if you're going to do it:

  1. Never bill more than 100% of the actual master bill. Add up every unit's allocation. If it exceeds what you paid the utility, you have a legal problem in most states and an ethical one everywhere.
  2. Deduct common-area usage first. Irrigation, laundry rooms, hallway lighting, and the hose bib the landscaper uses are your costs, not the tenants'. A typical deduction is 10–25% of the water bill for a building with landscaping. Deduct it off the top before allocating.
  3. Pick a formula and disclose it in the lease. The allocation method, the common-area deduction, any administrative fee, and a sample calculation should all appear in the lease itself — not on a notice you hand out later.
  4. Attach the master bill to every statement. Tenants who can see the underlying bill and check your arithmetic dispute far less than tenants who receive a number with no backup.

Occupancy-based allocation is the most defensible for water and sewer, since consumption tracks people more than floor area. A common approach weights the first occupant at 1.0 and each additional at 0.75, which reflects the reality that a second person doesn't double water use. Square footage is more defensible for heating in a master-boiler building.

Check your state before you start. California heavily regulates submeter billing under SB 7 for buildings permitted after 2018. Texas requires registration and specific disclosure formats for allocated water billing. Some cities — parts of Wisconsin, and several Massachusetts municipalities — effectively prohibit passing through water costs unless units are individually submetered to utility standards. This is one area where "everyone in my market does it" is not a defense.

Ready to put this into practice? Download KeyLoft for Free — it’s free and works offline.

Handling the Vacancy Gap

The utility cost nobody budgets for is the gap between tenants. When a tenant closes their account on move-out day, the utility doesn't just shut off — it reverts to the property owner, usually at a higher rate class, plus a reconnection fee if it was actually disconnected.

Set up a landlord agreement (most utilities call it a "continuous service" or "landlord revert" program) with each provider serving your properties. It's free to enroll, and it automatically puts the account in your name the day a tenant closes it, then transfers to the new tenant when they open service. No disconnection, no reconnection fee, no frozen pipes because the gas got shut off in January.

Budget the vacancy utility cost explicitly. For a typical two-bedroom in a moderate climate, expect $90–$140/month during vacancy across electric, gas, and water, and more if you're running heat to protect plumbing or air conditioning during a summer listing. On a 21-day turnover that's real money, and it belongs in your turnover cost calculation next to paint and cleaning.

Enroll in landlord revert programs before you need them. Enrolling takes ten minutes per utility; discovering you weren't enrolled costs a $75 reconnection fee and a day of delay on your make-ready.

Lease Language That Actually Prevents Arguments

Most utility disputes come from a lease that says "Tenant is responsible for all utilities" and nothing else. That sentence loses arguments. Specific language wins them.

  • Name every utility explicitly — electric, natural gas, water, sewer, trash, recycling, stormwater fee, internet, and any municipal service fees. Assign each to landlord or tenant by name. Sewer and stormwater are the ones landlords forget, and they can exceed the water charge itself.
  • Require proof of account transfer — tenant provides account numbers within 5 days of move-in, and you verify. Otherwise you find out in month three that the electric has been in your name the whole time.
  • Specify the billing cycle and due date for any landlord-billed utility — "billed monthly with rent, due with the following month's rent" removes ambiguity about when a utility charge becomes late.
  • Set minimum heat requirements — tenant maintains at least 55°F during heating season whether or not occupying the unit. This is a maintenance clause disguised as a utility clause and it prevents burst pipes.
  • Address seasonal HVAC in landlord-paid buildings — if you pay heat, set a thermostat range and state that windows must remain closed when heat is running.

Keep a copy of each utility clause where you can find it. When a tenant argues that trash was included, you want the actual signed page in front of you in under a minute, not somewhere in an email thread. This is the same discipline that makes any landlord recordkeeping system worth maintaining — the value shows up only in the moment of dispute.

Reducing the Bill You Can't Pass Through

For utilities that stay on your books, the return on efficiency work is unusually good because you capture 100% of the savings.

Water is the highest-yield target in master-metered buildings. A running toilet flapper wastes 1–3 gallons per minute — roughly $40–$200 per month at typical combined water and sewer rates — and it's invisible unless someone reports it. Add toilet dye tests to your annual inspection routine; a $15 pack of tablets covers a whole portfolio. Replacing pre-1994 toilets (3.5–7 gallons per flush) with 1.28 gpf models pays back in 14–24 months in a master-metered building. Aerators at 1.0 gpm on bathroom faucets and 1.5 gpm showerheads cost under $12 per fixture and cut fixture consumption 30–40%.

On the gas side, insulating an old boiler's distribution pipes and adding an outdoor reset control typically cuts heating fuel 8–15% in a hydronic building. If you're doing any of this work through contractors, treat it like the capital project it is — scope, bids, change orders, and job costs. Landlords doing serious renovation work often end up needing real job-costing discipline; TrestleBook is built for exactly that kind of construction project and contractor billing tracking, and it's a better fit than trying to force a plumbing retrofit into a rent ledger.

Tracking It So You Know Your Real Number

You cannot manage utility cost without a baseline. Pull twelve months of history for every account you pay — most utilities let you download it — and record monthly cost and consumption per property. Consumption matters more than cost, because cost moves with rates and tells you nothing about behavior.

What you're looking for: a month where consumption jumps 40% and stays there. That's a leak or a new occupant, not a rate change. Catching it in month one instead of month six is the difference between a $60 problem and a $400 one. Logging each bill against the property as you pay it — KeyLoft handles this as a recurring expense category tied to the unit, and works offline so you can enter it standing in the basement — makes the pattern visible without a spreadsheet exercise every quarter.

Separate utility expense by type in your books rather than lumping it into one "utilities" line. At tax time, utilities are fully deductible operating expenses for the portion you pay on rental units, and having water, gas, electric, and trash broken out makes the deduction defensible and the year-over-year comparison useful. If you also run a separate trade or self-employed business alongside the rentals, keep those books genuinely separate — tools like Stintly handle freelance and small business finance tracking independently, which keeps your Schedule E and Schedule C from bleeding into each other.

Track consumption, not just cost. A bill that went up 8% because rates rose is a market condition. A bill that went up 40% because usage rose is a maintenance ticket you haven't written yet.

A Decision Framework You Can Apply This Week

Run each property through this sequence:

  1. Inventory — list every utility account, its meter configuration, and who currently pays. Most landlords find at least one surprise.
  2. Separate what can be separated — anything individually metered goes tenant-direct at the next lease renewal, with rent adjusted to reflect the shift if the market supports it.
  3. Price the submetering option — for master-metered water in a building with 4+ units, get a quote. At $700/unit and $55/month in recovered cost, payback is under 13 months.
  4. If submetering doesn't pencil, decide RUBS or include-in-rent — and if you include it in rent, actually raise the rent to cover it rather than pretending it's free.
  5. Fix the lease language — every future lease names every utility and assigns it explicitly.
  6. Enroll in landlord revert programs — today, for every provider.

Utility structure is one of the few operating decisions that compounds quietly. A landlord absorbing $85/month in water across four units is giving up $4,080 a year, which at a 6% cap rate is roughly $68,000 in property value. The fix isn't glamorous — it's a meter audit, a lease rewrite, and a spreadsheet of twelve months of bills — but it's among the highest-return afternoons you can spend on a small portfolio. Do the inventory first. The rest follows from what you find.