Submetering and Allocation: A Landlord's Guide to Fair Water Billing
Last reviewed September 2026NES Editorial, checked by the Billing & Compliance team
Submetering measures each unit's exact water use, so the property's bill is allocated fairly. Here is how landlords use it to bill residents fairly.
- Typical water savings
- 15-30%Typical water savings
- Typical payback
- ~12 moTypical payback
- Meter reads
- DailyMeter reads
- States served
- 43+States served
How does submetering make water billing fair?
Submetering measures each unit's exact water use, so the property's water bill is allocated to residents by what they actually consumed rather than split evenly. That keeps careful users from subsidizing heavy ones, and it lets a landlord avoid rent increases driven by rising water cost. NES installs the meters, monitors them, and bills residents for their exact usage every month.
Why fair billing matters
When water cost is bundled into rent or split evenly, residents who conserve end up paying for those who do not. Submetering measures each unit's exact use, so the bill is allocated fairly and conservation is rewarded.
How allocation by submeter works
NES installs a meter on each unit, reads it every day, and bills each resident monthly for their exact usage. The property's total water bill is recovered from the people who created it, which protects the operating budget and helps a landlord avoid rent increases tied to water cost.
What NES handles
NES is a submetering equipment and billing provider for multifamily properties with 80 or more units. We install the meters, monitor them, and bill the residents, so the landlord gets fair billing without taking on the work.
What fair allocation does to consumption
- Water use typically drops 15 to 30 percent once residents are billed for their own consumption
- Daily meter data flags leaks early, before they run up the property's bill
- Common-area water is measured on its own, so it is not pushed into resident bills
- Lower water expense improves cash flow, and the install usually pays for itself in 12 to 18 months
Know the rules before you bill
Submetering is regulated by states, counties, and cities, and the rules change frequently. They govern how meters are installed, how accurate they must be, and how residents can be billed. A landlord who self-manages submetering needs to stay current on those rules. NES has a compliance team that verifies the regulations for every community it serves, so billing is set up to match local law from the first invoice.
Where allocation works when meters do not
Some buildings have shared plumbing that makes meters impractical. For those, NES offers ratio or formula-based utility billing, which divides the property's actual utility bill across units using a documented formula. It is less precise than a meter, but it still moves cost to residents fairly and has almost no setup cost.
Not sure submetering fits your property?
Start with a free assessment. Send NES your master-meter bills and unit count, and the team will confirm feasibility, estimate your return, and recommend the right method for your property, with no obligation.
Submetering and Allocation: A Landlord's Guide to Fair Water Billing
See what your property can recover.
Send us your master-meter bills and unit count. We’ll run the numbers on your actual property and reply within one business day with a clear, no-obligation estimate.