Title 26 › Subtitle Subtitle A— Income Taxes › Chapter 1— NORMAL TAXES AND SURTAXES › Subchapter O— Gain or Loss on Disposition of Property › Part II— BASIS RULES OF GENERAL APPLICATION › § 1019
If you rent out real estate and your tenant builds improvements on it, the value of those improvements is generally not taxed to you as income. The flip side: your cost basis in the property does not go up or down because of that untaxed value. You cannot claim a higher basis for improvements you never paid for or paid tax on.
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Internal Revenue Code — Source: USLM XML via OLRC
Legislative History
Reference
Citation
26 U.S.C. § 1019
Title 26 — Internal Revenue Code
Last Updated
Apr 6, 2026
Release point: 119-73