Montana LLC Tax Calculator

Montana has a graduated state income tax with a top rate of 5.65%, and charges a $20 annual LLC fee. Enter your expected Montana LLC net profit to see your full 2026 tax and fee breakdown.

Take-home rate (after LLC fees) 76%
Take-home $56,908 Tax $18,092

Federal SE tax

Self-employment tax (15.3%) $10,597
Federal income tax $4,898

Montana

Montana income tax $2,577
LLC annual fee $20

Total cost of doing business

Total tax + LLC fees $18,092
Effective rate (tax only) 24.1%
Take-home after tax and LLC fees $56,908

Annual report due April 15.

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.