Where’s My Refund?
Federal: https://www.irs.gov/wheres-my-refund
Colorado: https://tax.colorado.gov/where-is-my-refund
Potential COVID-Era IRS Penalty Relief
A recent Court of Federal Claims decision, Kwong v. United States (Kwong), may allow some taxpayers to recover certain IRS penalties and interest that were assessed and paid for tax years 2019, 2020, 2021, and 2022.
The issue remains unsettled. The United States has appealed the decision, and it may take years for the ultimate outcome of the case to be known.
Taxpayers who paid IRS penalties or related interest during any of these years, may wish to preserve rights to a potential refund by filing a protective refund claim.
Important: Protective refund claims related to the Kwong case must be filed before July 10, 2026, to protect your potential refund rights. A protective claim does not guarantee that you will receive a refund, but it preserves your rights while the legal issues are resolved.
Taxpayers may file their own protective refund claim by submitting IRS Form 843, Claim for Refund and Request for Abatement, directly to the IRS (see links below for forms and instructions).
The state of Colorado may also pay refunds due to this issue. There is no specific form to file, but you can write a letter to them at: Colorado Department of Revenue, Denver, CO 80261.
It is recommended that any mailings are sent by certified mail for proof of timely submission.
https://www.irs.gov/forms-pubs/filing-form-843-for-claims-citing-kwong-v-united-states
https://www.irs.gov/pub/irs-pdf/f843.pdf
https://www.irs.gov/instructions/i843
General Tax Filing Deadlines
(May change due to weekends and holidays)
March 15
- Partnerships
- S-Corporations
April 15
- Individuals
- C-Corporations
- Trusts
September 15
- Partnerships – extended
- S-Corporations – extended
October 15
- Individuals – extended
- C-Corporations – extended
Quarterly Estimated Payments
- April 15
- June 15
- September 15
- January 15 (for previous tax year)

Mosaic Tax Group LLC
303-444-4327
2590 Trailridge Drive E, Suite 201 Lafayette, CO 80026
