How to vote · 2026
Idaho
IdahoAny voter can request a mail ballot
Registration, mail-ballot, and early-voting dates, with source notes and official election-office links. Election Day is Tuesday, November 3, 2026.
Dates and rules
Registration, mail ballots, and early voting
Registration deadlineOctober 23, 2026Advance registration (online, mail received, or in person) by Oct. 23, 2026 (11 days before). Same-day registration with proof of residence during in-person absentee voting and on Election Day.
Mail-ballot request deadlineOctober 23, 2026
Mail ballots first sentSeptember 18, 2026Mail ballots become available about 45 days out and are sent as applications are processed beginning Sept. 18, 2026 (per CEIR, based on correspondence with the Idaho SOS, May 2026). Request deadline 5 p.m. Oct. 23 (11 days out).
Return ruleMust be received by 8 p.m. on Election Day
Early in-person votingSeptember 18, 2026Through October 30, 2026 · In-person absentee voting at county clerk offices from Sept. 18 through Oct. 30, 2026; some counties additionally offer early voting from Oct. 13. Varies by county.
Official ID election site ↗Automated verification has not confirmed every listed date. Check the official election office for current deadlines and eligibility rules.Sources: [1] USA.gov directory of official state election offices[2] Mail voting from Sept. 18, 2026; includes email correspondence with Idaho SOS (May 7, 2026)[3] CEIR 2026 voter registration deadlines (June 25, 2026 dataset; per-mode deadlines and same-day registration windows)[4] NCSL Table 7: statutory rule for when absentee/mail ballots are mailed[5] NCSL Table 5: statutory absentee ballot application deadline[6] NCSL Table 11 (updated Dec. 2025): ballot receipt/postmark deadline
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The full table of mail-ballot send dates, registration deadlines, and early-voting windows for all fifty states and DC, plus the documented record of government actions on mail voting this cycle.
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