About FairRentHQ
FairRentHQ was built to provide transparent, equitable financial calculators for roommates and renters without paywalls or data harvesting.
Why we built FairRentHQ
Renting an apartment with roommates is one of the fastest ways to cut living costs, yet it routinely triggers household resentment. Most people divide total monthly rent straight down the middle. That simple division fails when one bedroom has an ensuite private bathroom, another has double the square footage, or one housemate works remotely from the dining table every day.
We founded FairRentHQ to replace personal friction with transparent mathematics. Every tool runs client-side in your web browser, never asks for an account or credit card, and clearly documents the mathematical reasoning behind every single dollar.
Our four core calculation principles
1. Private vs. Common Space Split
Bedrooms are private retreats, while the kitchen, living room, and shared hallways belong to all occupants equally. Our splitter isolates the common pool and divides it equally per person before applying square footage formulas.
2. Quantitative Amenity Weighting
Private ensuite bathrooms, parking spaces, and balconies carry real market value. We provide fair percentage multipliers and dollar adjustments to prevent anyone from getting a free ride.
3. Net Pay Affordability
The 30% gross rule is broken in high-tax states. We evaluate actual take-home net income, state tax brackets, and 50/30/20 balance so renters avoid signing leases they cannot sustain.
4. Tenant Legal Protections
Landlords have statutory obligations to mitigate damages and return deposits on strict timelines. We empower tenants with statute citations and formal demand notices.