SuperCitizen

The mortgage-interest deduction (MID) lets homeowners deduct interest on up to $750K of mortgage debt (post-TCJA) on a primary or secondary home. The 2017 Tax Cuts and Jobs Act roughly doubled the standard deduction, dramatically reducing the share of homeowners who itemize and benefit from the MID.

Empirical work generally finds the MID has minimal effect on home-ownership rates — most of the benefit goes to higher-income owners who would buy anyway. The deduction is one of the largest "tax expenditures" in the code.

Reform proposals include further capping the eligible mortgage size, converting to a refundable credit (broader access), or eliminating it and redirecting savings to renter-side programs.

Spectrum of framings

How adherents on each side of the conventional left / center / right spectrum frame this issue — written so each camp would recognize the framing as charitable.

left

Progressives generally favor capping or eliminating the MID and redirecting funds to renter assistance.

center

Most tax economists favor MID reform; the TCJA partial-cap was a step in this direction.

right

Conservative views split: some favor full retention as ownership-friendly; others favor reform as part of broader tax simplification.

Perspectives

Each perspective is presented in terms its advocates would recognize, with the concerns they treat as paramount. None is endorsed.

Eliminate-or-cap reformers

The MID is a regressive subsidy that doesn't increase home-ownership but inflates home prices. Redirect the revenue to renter assistance and first-time-buyer programs.

Regressivity of current MID
Negligible effect on ownership rates
Renter equity

Defenders

Home-ownership is the single most important wealth-building tool for middle-class families. The MID supports the housing market and a long-standing pro-ownership tax framework.

Middle-class wealth building
Housing-market stability
Continuity in tax expectations

Mortgage interest deduction

Spectrum of framings

Perspectives

Related lessons