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Colorado pass-through entity tax updates: What you need to know

March 12, 2026 / 3 min read

Colorado’s pass-through entity tax election allows S corporations and partnerships to deduct state income taxes at the entity level, helping owners bypass the federal SALT cap. Learn how Colorado’s PTET works and key considerations for taxpayers.

Colorado allows entities treated as S corporations and partnerships (collectively, PTEs) for federal income tax purposes to elect to pay income tax earned on behalf of qualifying owners (the “PTET election”). The intention of this election is to allow owners of pass-through entities to claim a federal deduction for state income taxes on income earned from a PTE without being subject to the federal state and local tax limitation established under the Tax Cuts and Jobs Act and later updated by the One, Big, Beautiful Bill Act. In November 2020, the IRS released Notice 2020-75, allowing a federal deduction for PTE taxes when a state’s tax laws conform to the guidance outlined in the notice. Colorado’s PTET regime follows these provisions.

Colorado pass-through entity tax: A summary

Key provisions of the Colorado PTET include the following:

Colorado PTET election process

A Colorado PTET election can be made on a timely filed DR 0106, including extensions. Alternatively, a PTET election can be made on Form DR 1705 during the tax year, or by marking the SALT Parity Act election box on form DR 0106EP filed with an estimated tax payment. Depending on the PTE’s facts and circumstances, the difference between waiting to make Colorado’s PTET election on the return versus making the election during the year via Form DR 1705 or DR 0106EP could be the timing of the federal deduction — current year or subsequent year.

Pitfalls under PTE tax regimes

While PTE taxes in general can be immensely beneficial for PTE owners in terms of tax savings, there are situations where taxpayers may end up paying more income tax under a PTE tax regime.

As an example, individual owners of PTEs should ensure a credit for PTET paid to other states is allowed in their state of residency. Otherwise, the individual may end up paying tax on the same income twice and receiving only a partial benefit for the federal income tax deduction. Note that Colorado residents are allowed a credit for taxes paid for PTE taxes paid to other states.

Another example is where an owner’s PTET is not refundable in a state, but rather carried forward for a set number of years before expiring. If the PTE owner isn’t able to use the credit for a period of years, or, worse case, the credit expires, then the PTET election results in a detriment.

Research and modeling are highly recommended before making an election or payment. Taxpayers should weigh the benefits of the PTET election against the cost of compliance required to ensure pitfalls are avoided.

How we can help with Colorado’s PTET

If you have questions about the impact of a PTET election in Colorado or any other state, please contact your Plante Moran advisor or one of the authors to discuss the specific facts and circumstances of your situation.

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