Idaho Voting Laws & Election Rules 2026

Complete guide to Idaho’s voter ID requirements, early voting window, absentee mail voting, registration deadlines, and same-day registration eligibility for the 2026 midterm elections.

R+31

2024 Presidential

1.9M

Population

Yes

Same-Day Registration

Yes

Mail Voting

Voting Rules at a Glance

Rule	Idaho Requirement
Voter ID	Photo or non-photo ID (utility bill accepted); tribal ID accepted
Early In-Person Voting	25 days before Election Day
Absentee / Mail Voting	No-excuse absentee; must be requested; return by Election Day
Registration Deadline	25 days before Election Day; in-person same-day at polls
Same-Day Registration	Same-day registration at polls on Election Day

Idaho Election Context

Idaho is one of the most Republican states in the nation. Boise is the only significantly Democratic area, though it remains outnumbered statewide. Idaho eliminated the Democratic Party primary in 2011, requiring party registration for primaries.

Governor

Brad Little (R)

US Senators

Mike Crapo (R) & Jim Risch (R)

2020 Presidential

Trump +31

2024 Presidential

Trump +32

2026 Election Dates for Idaho

2026 Midterm Election Day	November 3, 2026
Earliest Possible Early Voting Start	Varies by county — check Idaho Secretary of State
Primary Election (approximate)	May–August 2026 (state-specific)
Official Source	Idaho Secretary of State / Election Division