Washington campaign-finance filing deadlines
Official 2026 report due dates for Washington state candidates file with Washington Public Disclosure Commission.
6 report deadlines for the 2026 cycle.
These are the campaign-finance report due dates a Washington state candidate files with Washington Public Disclosure Commission for the 2026 election cycle, stored verbatim from the official schedule. The 2026 primary is Aug 4, 2026.
| Due | Type | Report | Covers |
|---|---|---|---|
| Jul 14, 2026 | Pre-election | WA 21-Day Pre-Primary C-4 Report Summary report due 21 days before the August 4 primary. |
— |
| Jul 28, 2026 | Pre-election | WA 7-Day Pre-Primary C-4 Report Summary report due 7 days before the August 4 primary. |
— |
| Sep 10, 2026 | Post-election | WA Post-Primary C-4 Report Post-primary summary report due September 10 (covering through August 31). |
— – Aug 31, 2026 |
| Oct 13, 2026 | Pre-election | WA 21-Day Pre-General C-4 Report Summary report due 21 days before the November 3 general. |
— |
| Oct 27, 2026 | Pre-election | WA 7-Day Pre-General C-4 Report Summary report due 7 days before the November 3 general. |
— |
| Dec 10, 2026 | Post-election | WA Post-General C-4 Report Post-general summary report due December 10 (covering through November 30). |
— – Nov 30, 2026 |
Shaded rows are deadlines that have already passed.
Good to know
The unconditional election-cycle C-4 summary reports for a full-reporting state legislative candidate. Also required but not listed here as fixed dates: monthly C-4 reports due the 10th of each month (next business day if a weekend/holiday) for any month with over roughly $750 of activity; weekly C-3 deposit reports each Monday from June 1; and an end-of-election-cycle C-4 covering December, due in mid-January 2027 (the PDC 2026 Key Dates page prints a wrong-year date for it — confirm on the 2027 schedule). Mini-reporting candidates are exempt from C-3/C-4 detail (deadlines to switch to full reporting are June 22 and August 31). File via ORCA; $1,500+ last-minute contributions trigger event-driven special reports.
Electbase compiles these dates from official state sources as a workflow aid. It is not legal advice. Confirm every deadline with your filing authority before you rely on it.
Last updated July 13, 2026