Need to Know Tax The companion to Income Tax 2026 · Federal & Colorado

Updates since press time

The booklet’s figures freeze in mid-December so it can be printed in January. The IRS and the Colorado legislature do not freeze. Anything that changes afterward is logged here, newest first, with the article it affects.

This page is live before the booklet is

Entries will be added for the November 3 ballot outcomes (Amendment 87, Propositions 136 and NN), the 2027 IRS inflation figures when they are published, any late guidance on Trump accounts, and corrections readers send in.

Affects: the numbers at a glance · Colorado changes already enacted for 2027

How to read an update

Each entry names the date, what changed, and which article it affects. Where a figure in the printed booklet is superseded, the entry gives the new figure and the old one, so a reader with the booklet open can mark the page. Articles on this site are corrected in place and carry an “Updated” date at the bottom.

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