Idaho Home Office Deduction Calculator

Idaho has a flat 5.30% state income tax. Combined with your federal self-employment and income tax, that determines how much a home office deduction is actually worth to you in Idaho.

Business-use percentage

10.0%

Simplified method

$750

$5/sq ft, up to 300 sq ft

Actual expense method

$2,300

10.0% of $23,000 in home expenses

Tax impact of the actual expense method

Deduction amount $2,300
Total tax without deduction $18,336
Total tax with deduction $17,692
Estimated tax savings $643

GigTaxTools provides estimates for planning purposes only and is not tax, legal, or accounting advice. Tax figures reflect 2026 federal and state rates as published and may not capture every deduction, credit, or local tax that applies to your situation. Consult a qualified tax professional before filing.

% © 2026 GigTaxTools. All calculations are estimates.