Utility Bill Split Calculator (RUBS)

Split a shared utility bill across rental units the way most RUBS (Ratio Utility Billing System) programs do — by occupants, by square footage, or equally. Print the itemized result to include with a tenant's bill.

Check your state and local rules first. Some states and cities restrict RUBS-style billing, cap administrative fees, or require specific lease language and notice. This calculator is a math tool, not legal advice.

Total utility bill for this period ($) Utility type (shown on the printed breakdown)

Billing period

Admin fee per unit ($, optional)

Some RUBS vendors add a small per-unit fee. Check local caps.

Allocation method

By occupants By square footage Equal split

Units

Unit	Occupants	Sq ft