Montana state income tax
Varies
Can You Write Off Montana state income tax?
Short answer: For 2026 Montana taxes ordinary income at 4.7% up to $47,500 (single/MFS), $71,250 (HoH) or $95,000 (MFJ) and 5.65% above (down from 5.9%), with the top rate scheduled to fall to 5.4% in 2027.
Montana starts from federal taxable income, so it effectively uses the federal standard deduction; long-term capital gains get lower rates (3%/4.1%), and the state EITC is 20% of the federal credit. State and local income, sales, and property taxes share one SALT cap ($40,400 for 2026, reduced above about $505,000 of income) and only help if you itemize.
Records to keep: Keep your state return, W-2s and 1099s (1099-R, SSA-1099), and any state credit worksheets. Check your state revenue department's current-year instructions before you file.
Montana state income tax
Varies
Individuals / Personal Taxes
For 2026 Montana taxes ordinary income at 4.7% up to $47,500 (single/MFS), $71,250 (HoH) or $95,000 (MFJ) and 5.65% above (down from 5.9%), with the top rate scheduled to fall to 5.4% in 2027.
Business justification
For 2026 Montana taxes ordinary income at 4.7% up to $47,500 (single/MFS), $71,250 (HoH) or $95,000 (MFJ) and 5.65% above (down from 5.9%), with the top rate scheduled to fall to 5.4% in 2027. Montana starts from federal taxable income, so it effectively uses the federal standard deduction; long-term capital gains get lower rates (3%/4.1%), and the state EITC is 20% of the federal credit. State and local income, sales, and property taxes share one SALT cap ($40,400 for 2026, reduced above about $505,000 of income) and only help if you itemize.
Category
- Personal Tax Deductions