Montana Tax Tables
Montana Tax Tables provide a complete reference of how state income tax is calculated for each supported year. These tables summarise the official rules issued by the Montana Department of Revenue and present them in a clear structure that matches the calculations used in our Montana Tax Calculator. They are useful for checking withholdings, estimating liability, reviewing historical tax years and understanding how state policy shapes taxable income.
Quick Access Tools
Tax Years
Select a tax year to view the official Montana tax rates and rules used in our calculators. Each page shows the brackets or flat tax rate, deduction amounts, credit structures, withholding guidance and any year-specific updates published by the Montana Department of Revenue. You can also access the matching Montana Tax Calculator for precise calculations for that year.
How Montana Calculates Income Tax
Montana uses a progressive tax system where income is divided into brackets and each portion is taxed at its marginal rate. These rules determine how wages and other taxable income are assessed for Montana returns, with updated tables released each year to reflect legislation and inflation changes. For a broader explanation of how tax tables work, see our Tax Tables guide.
Montana supports resident, nonresident and part-year filing rules. The tax tables help clarify which thresholds apply when income is earned both inside and outside the state.
What Is Contained in the Montana Tax Tables?
Each tax-year page provides a structured summary of the components Montana uses to calculate individual income tax. While details vary by year, the state tax tables generally include the following elements:
- State tax brackets and marginal rates for each filing status.
- Standard deduction amounts for each filing status.
- Itemized deductions where permitted under Montana law.
- Dependent and family-related credits including any child-based or filer-based reductions.
- Retirement income rules including partial or full exemptions for pensions or Social Security.
- State withholding tables used by employers for payroll calculations.
Together, these elements provide a transparent breakdown of how Montana calculates tax for each year. This structure helps taxpayers review year-to-year changes, employers validate payroll withholding and financial planners analyse how Montana’s rules differ from federal requirements. All values shown in our Montana Tax Tables match the official figures published by the state.
Frequently Asked Questions
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.