Montana Tax Calculators — 2026

Free self-employment and income tax calculators for Montana residents. Updated for the 2026 tax year.

Montana has two brackets: 4.7% and 5.65% (HB 337 reduced top rate). No state sales tax.

Tax Calculators for Montana

Montana Tax Quick Facts

State Income Tax
Yes — up to 6%
Sales Tax
None
LLC Filing Fee
$70
Annual Report Fee
$20

Frequently Asked Questions

What taxes do self-employed people pay in Montana?
Self-employed individuals in Montana pay federal self-employment tax (15.3%) on net profit, plus federal income tax and Montana state income tax. You must make quarterly estimated payments if you expect to owe $1,000 or more.
Is Montana a good state for freelancers?
Montana has state income tax which adds to your total tax burden. Compare with no-tax states (FL, TX, NV, WA, etc.) using our state comparison tool to see potential savings.