Official References & Data Sources

RentalInvestCalc is a YMYL (Your Money, Your Life) topic: the numbers here can influence real investment decisions. Under Google's quality guidelines, pages like ours are held to a higher standard of Expertise, Experience, Authoritativeness, and Trustworthiness (E-E-A-T). The single best way to demonstrate that is to show our work — every formula, rate, and assumption traces back to a primary or authoritative source listed on this page.

We do not use opaque "black box" estimates. Where a figure is a planning approximation (such as a state effective tax rate), we say so explicitly and point you to the official body that publishes the authoritative version. This page is the index of those bodies.

The foundation of all tax and depreciation calculations. These are the authoritative IRS sources.

Our state guides show an effective property-tax rate — the amount a typical owner actually pays relative to market value, after exemptions and assessment caps are applied. We benchmark these to published state and county averages, then present the statewide figure as a planning estimate.

Two properties with identical rent and price can throw off very different cash flow purely because of where they sit on the tax map. That is why every state guide also lists the statutory deposit, notice, and eviction parameters — drawn from each state's landlord-tenant statute — so the operating model reflects real local rules rather than a national default.