Implementing RUBS: Fair Utility Allocation for Multifamily

A primary goal of any multifamily value-add business plan is to shift the financial burden of utility costs from the owner to the tenant. If a property only has a single, master water meter, the landlord typically pays the entire massive bill out of the building's Gross Potential Rent.

Retrofitting a 100-unit building with individual sub-meters is prohibitively expensive, often requiring tearing into walls and rerouting century-old plumbing. The elegant, cost-free solution is implementing a Ratio Utility Billing System (RUBS).

Manage complex multi-tier RUBS allocations instantly with our free RUBS Utility Billback Allocator.

The Mathematics of RUBS

RUBS is a mathematical formula used to equitably divide a master utility bill among tenants based on specific, measurable factors.

You cannot simply take a $5,000 water bill, divide it by 50 units, and charge everyone $100. Doing so forces a single occupant living in a 500 sqft studio to subsidize the extreme water usage of a family of five living in a 1,200 sqft three-bedroom unit.

A legally compliant RUBS formula balances two heavily weighted metrics:

1. Square Footage

Heating, cooling, and electricity usage correlate strongly with the physical volume of the apartment. Therefore, a portion of the bill is usually allocated based on the unit's square footage relative to the building's total rentable space.

2. Occupant Count

Water, sewer, and trash usage are directly tied to the number of living, breathing humans in the unit. The remainder of the bill should be allocated based on the headcount per unit.

The Common Area Deduction

Before you divide the master bill, almost all municipalities mandate a Common Area Deduction (typically 15% to 20%). The landlord cannot legally bill tenants for the water used to irrigate the exterior landscaping or to fill the community pool. That percentage is removed from the billable pool completely.

By utilizing our free RUBS Utility Billback Allocator, property managers can customize these exact weightings, ensuring a perfectly fair and defensible invoice for every single tenant.

Centralized Utility Billing

Typing individual RUBS charges into 50 different tenant ledger accounts every single month is torturous and prone to data-entry errors. Automate your monthly utility billbacks natively. Start a 14-day free trial of Landager to generate perfectly compliant RUBS invoices, automatically apply them to tenant ledgers, and drastically increase your monthly NOI without lifting a finger.