2026 Supplemental Report Calendar

2026 Supplemental report calendar (PDF)

Primary Election: Tuesday, June 30, 2026

General Election: Tuesday, November 3, 2026

Supplemental reports Dates
Electioneering Communication May 31, 2026, through November 2, 2026
24-Hour Notice of Major Contributor May 31, 2026, though June 29, 2026
and
October 4, 2026, through November 2, 2026
48-Hour Notice of Independent Expenditure May 31, 2026, though June 29, 2026
and
October 4, 2026, through November 2, 2026

Electioneering Communication period starts 30 days before the Primary election and concludes the day before the election. This includes communications which are broadcasted, printed, mailed, delivered, or otherwise distributed that mention one or more candidates. If you spend $1,000 or more in a calendar year on this type of communication, you must report this and if you are a registered committee, this will be part of your standard disclosure report. Your report will also have you include the method and dates of the communication, and the name(s) of the candidate(s) mentioned in the communication.

24-Hour Notice of Major Contributor report period starts:

  • 30 days before the Primary election and ends the day before the Primary election, and starts again.
  • 30 days before the General election and ends the day before the General election.

A Major Contribution is any contribution (monetary or non-monetary / in-kind), including loans by a candidate to their own candidate committee, of $1,000 or more that given within 30 days before a primary, general, or regular biennial school election. This is a separate report from your standard report and is due within 24 hours of receiving a Major Contribution.

This applies to:

  • Candidate Committees whose office appears on the Primary and / or General Election ballot,
  • Political Parties, and
  • Issue Committees - only applies the 30 days before the General Election (and it doesn’t matter whether the Issue Committee is or is not participating in the Election).

48-Hour Notice of Independent Expenditure report period starts:

  • 30 days before the Primary election and ends the day before the Primary election, and starts again.
  • 30 days before the General election and ends the day before the General election.

An Independent Expenditure expressly advocates for or against candidates and is NOT coordinated with a candidate, candidate committee, or political party. If you obligate/spend funds in excess of $1,000 for an Independent Expenditure, within 30 days before the Primary election or General election, a separate Independent Expenditure report is due within 48 hours of the obligation/spending. This only applies to Independent Expenditure Committees.

This applies only to Independent Expenditure Committees.

Questions?

Contact the Campaign Finance Support Team or review the Colorado Campaign and Political Finance manual (PDF).

Reporting: TRACER
Email: CPFHelp@coloradosos.gov
Telephone: 303-894-2200