Montana Quarterly Tax Calculator for Gig Drivers

Montana has its own state income tax on top of federal self-employment tax. Get your exact quarterly estimated tax payment, effective rate, and recommended set-aside — free, in seconds.

Montana Estimated Tax Facts

State Income Tax

Yes

Estimated Tax Form

Form IT

File When You Owe

$500+ in state tax

Self-Employment Tax Rate

15.3% (federal)

Calculate Your Montana Quarterly Payment

Annual Gig Income ($)

Miles Driven / Year

Quarterly Payment

Annual Tax

Effective Rate

Set Aside / Payout

Montana Specific Tax Notes

Montana simplified to 2 tax brackets in 2024: 4.7% and 5.9%
Estimated tax required if you expect to owe $500+ in state tax
Montana has its own standard deduction of approximately $5,500 for single filers
Montana follows federal quarterly payment deadlines
Last reviewed: April 2026 — verify current rates at mtrevenue.gov

Montana Estimated Tax Facts

Calculate Your Montana Quarterly Payment

Montana Specific Tax Notes

Get Your Montana Tax Kit — $1