Idaho voter registration closes Oct 23 for the November 3, 2026 election. Every deadline — registration, mail ballot and early voting — with the official source for each.
Look up your own ballot and polling place →
Idaho county clerks begin mailing absentee ballots on Friday, Sept 18 to voters who have already requested one. If you request later, your ballot goes out after your request is processed.
Counties that offer early voting may begin Tuesday, October 13, 2026. Your county's start date may be later. In-person absentee/early voting ends 5 p.m. Friday, October 30, 2026. Early voting is offered at county discretion between Oct 13 and 5 p.m. Oct 30, 2026. Check your county clerk for dates, sites and hours.
Your county clerk must receive your absentee ballot application by 5 p.m. Friday, October 23, 2026.
Pre-register online by 5 p.m. local time Friday, October 23, 2026 (11 days before the election). Your county clerk must receive your mailed form by 5 p.m. Friday, October 23, 2026. Forms received later are held until after the election.
In-person absentee/early voting ends 5 p.m. Friday, October 30, 2026. Early voting is offered at county discretion between Oct 13 and 5 p.m. Oct 30, 2026. Check your county clerk for dates, sites and hours.
Your county clerk must receive your voted absentee ballot by 8 p.m. on Election Day. A postmark does not count.
After Oct 23 you can still register in person when you vote early or at your polling place on Election Day (bring photo ID and proof of residence). Register in person when you vote early or at your polling place on Election Day. You need a current photo ID and proof of residence.
Candidate declarations may be filed with the city clerk starting at 8:00 a.m. on Monday, August 16, 2027. Candidate declarations must be in the city clerk's office by 5:00 p.m. on Friday, August 27, 2027.
Candidate declarations must be in the city clerk's office by 5:00 p.m. on Friday, August 27, 2027.
Friday, October 22, 2027 at 5:00 p.m. is the last day to register at the county clerk's office for the November 2, 2027 city election. Idaho also lets you register at an early voting site or at your polling place on Election Day with proof of identity and residence.
Idaho law puts every city's general election on the same day: the Tuesday following the first Monday of November in each odd-numbered year. In 2027 the first Monday in November is November 1, so the city general election is Tuesday, November 2, 2027.
We publish a gap rather than a guess. These points were not settled by an official source:
Every date above was read from the Idaho election office's own published material, last checked Tuesday, September 15, 2026. Confirm anything you are relying on with your local election authority.
https://voteidaho.gov/calendar/
Preregistration Deadline October 23 Voter registrations must be received by the county clerk by 5 p.m. local time — for the Nov. 3 election.
https://legislature.idaho.gov/statutesrules/idstat/title34/t34ch4/sect34-408/
No elector may register in the office of the county clerk after 5:00 p.m. on the eleventh day before any election held throughout the county in which he resides for the purpose of voting at such election
https://voteidaho.gov/voter-registration/
You may also register when you vote in person at early voting or on Election Day.
https://archive.voteidaho.gov/download/2026-election-calendar.pdf
Mail Absentee Ballots: County clerks must begin mailing absentee ballots – to voters who have requested absentee ballots– for the general election. [§34-308, Idaho Code]
https://legislature.idaho.gov/statutesrules/idstat/title50/t50ch4/sect50-407/
This petition must be filed in the office of the City Clerk no earlier than 8:00 a.m. on the twelfth Monday and no later than 5:00 p.m. on the tenth Friday before election day.
https://legislature.idaho.gov/statutesrules/idstat/title50/t50ch4/sect50-405/
A general election shall be held in each city governed by this title, for officials as in this title provided, on the Tuesday following the first Monday of November in each odd-numbered year.