TABOR and taxes have a big impact on seniors in Colorado. TABOR is one of the best friends to seniors in Colorado because it limits the growth of government spending (unless approved by Colorado voters) which, in turn, reduces the need for more taxation. In addition, there are other laws that benefit Colorado taxpayers 55 and older who get a $20,000 retirement income exclusion from state taxes, and the exclusion reaches $24,000 when they reach 65. Seniors may qualify for this exemption of up to 50% of the first $200,000 of property value if they’ve lived in the same house for 10 years. In the November 2000 election, Colorado voters passed a Property Tax Exemption for seniors, known as Referendum A.  It is called the Homestead Exemption Act.

Conversely, a big downside for retirees is that Colorado’s sales taxes (which have a local component) are on the high side and can exceed 11% in some parts of the state. Seniors need to be vigilant about local sales tax increase proposals and local property tax increase proposals that are relentless in requesting more money. Local governments and special districts frequently attempt to elude TABOR restrictions by de-Brucing. As a result, local government tax growth often exceeds the state tax growth rate. Colorado taxpayers have rejected over 20 statewide tax increases since the TABOR amendment to the Colorado Constitution was approved by the voters in 1992. Seniors should oppose de-Brucing efforts at the local level to preserve the TABOR provisions.

Excepting the plains, the only thing that is flat in Colorado is the income tax rate. Colorado became a flat tax state in 1987 and has a flat income tax rate of 4.55% (the approval of Proposition 116, which appeared on the November 2020 ballot, reduced the rate from 4.63% to 4.55%). TABOR limits how much its revenue can grow from year-to-year by lowering the tax rate if revenue growth is too high. For example, in 2019, this resulted in a rate reduction to 4.5%. Colorado is only one of nine states in the US with a flat income tax. The others are Illinois, Indiana, Kentucky, Massachusetts, Michigan, North Carolina, Pennsylvania, and Utah. Only Indiana, Michigan, and Pennsylvania have a lower flat tax than Colorado. However, none of these states have a taxpayer’s bill of rights (TABOR) like Colorado does.

Denver and a few other cities in Colorado also impose a monthly payroll tax.

Up to $24,000 of Social Security benefits taxed by the federal government, along with other retirement income, can be excluded for Colorado income tax purposes ($20,000 for taxpayers 55 to 64 years old). The exclusion is capped at $20,000 or $24,000 (dependent upon age) regardless of what retirement income is applied. In other words, if a taxpayer has Social Security income, IRA income, and pension income, the cap limits restrict the total exclusion to $20,000/$24,000.