Other Income Ratio Calculator

Other income lines — laundry, parking, pet rent, RUBS, storage — are easy to overlook but often drive 5-10% of NOI. This calculator computes the ratio of other income to rent, per-unit benchmarks, and share of EGI to show whether ancillary revenue is being optimized.

Annual other income

Annual rent collected

Number of units

Other income ratio (of rent)

8.33%

Other income share of EGI

7.69%

Other income per unit / year

$1,500

Other income per unit / month

$125

Effective gross income

$780,000

How the math works

Other income — laundry, parking, pet rent, RUBS, late fees, application fees, storage — should be 5-10% of rent on stabilized multifamily. Properties below 3% are leaving money on the table; above 12% may have aggressive fee structures that lenders discount in underwriting.

Per-unit-per-year benchmarks: $600-$900/unit in well-operated Class A multifamily. Older Class C: $200-$400. Urban high-rise with parking and ancillaries: $1,200+/unit.

How to Use

Enter annual other income (excludes rent and utility pass-throughs).
Enter annual rent collected.
Enter unit count.
Read ratio, per-unit contribution, and share of EGI.

Frequently Asked Questions

What counts as other income?

Laundry, parking, pet rent, pet fee, storage, late fees, application fees, RUBS utility reimbursements, cable/internet bulk revenue, vending, short-term premium. Anything that isn't contract base rent.

Why underwrite separately?

Lenders and appraisers underwrite other income with a higher risk discount (often 50-70% of trailing). Base rent is more stable; ancillary revenue can evaporate when management changes. Always separate in the pro forma.

Common ways to grow?

RUBS (resident utility billing) adds $30-$60/unit/month. Pet rent at $35-$50/unit/month. Package lockers or pet spas add amenity fees. Parking/carports add $50-$200/stall/month.