Montana State Tax Forms & Schedules for 2026
The tax forms on this page can be essential for your Montana state tax return. Each form automatically calculates the relevant deductions and tax amounts based on the 2026 Montana State tax tables.
Quick Access Tools
We are currently updating the tax forms for Montana to reflect the 2026 tax year. If you were looking for a specific tax form for Montana, please contact us and we will prioritize this.
Tip: Use the Montana Tax Calculator to fine-tune your refundable and non-refundable tax credits. Complete, calculate, print, and save your tax calculation for later use.
Frequently Asked Questions
Common Montana tax questions include how to claim the Elderly Homeowner Credit, when to itemize vs. use the standard deduction, and how federal tax deductions apply on the state return.
Does Montana have a personal exemption?
No—personal exemptions were eliminated in recent tax simplifications.
How are bonuses taxed in Montana?
They’re taxed as ordinary income at the state’s flat rate.
Can I claim a deduction for health insurance premiums?
Yes, self-employed individuals may deduct health insurance costs similar to federal rules.
Is there a Montana Earned Income Credit?
Yes—Montana offers a refundable EITC equal to 3% of the federal EITC amount.
How does Montana handle remote work?
Income earned while working in Montana is subject to Montana state tax.
Important Notes
All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.