Tax Year 2026Updated July 23, 2026

Montana Paycheck Calculator 2026

Q: What taxes are deducted from my Montana paycheck?

Your Montana paycheck has deductions for federal income tax (10%-37%), FICA (Social Security + Medicare), and Montana state income tax using graduated brackets (2 brackets).

Q: How do Montana's income tax brackets work?

Montana uses a graduated (progressive) income tax with 2 brackets. Each bracket applies only to income within that range, not your entire income. For example, if you earn enough to reach the third bracket, only the income above the second bracket's threshold is taxed at the third bracket's rate.

Q: What tax bracket am I in for Montana?

Your Montana bracket depends on your taxable income (after deductions) and filing status. The calculator above shows your effective state tax rate, which is usually lower than your marginal bracket rate because lower portions of your income are taxed at lower rates.

Q: Does Montana conform to the OBBBA overtime and tips deductions?

Yes. Montana conforms to the federal OBBBA deductions for tips and overtime. These deductions reduce both your federal and Montana state taxable income, giving you a double benefit.

Q: Does Montana tax Social Security benefits?

Yes. Montana is one of a small number of states that taxes Social Security benefits at the state level. Montana allows a $5,500 pension/annuity exclusion for qualifying taxpayers with AGI below certain thresholds. Social Security is taxed following federal taxation rules. Verify 2026 exclusion amount and income limits. Most states fully exempt Social Security from state income tax, making this a notable distinction for retirees living in or considering Montana.

This calculator estimates your take-home pay as a Montana worker after federal income tax, FICA, and Montana's 2-bracket graduated income tax (rates from 4.70% to 5.65%). Enter your salary, pay frequency, and filing status below.

Montana Income Tax Brackets 2026

The rates below apply to taxable income after subtracting Montana's standard deduction of $5,540 (single) or $11,080 (MFJ).

Taxable Income	Rate
$0 - $21,600	4.70%
Over $21,600	5.65%

Source: Montana Tax Authority

Retirees may benefit from partial pension income exclusions.

Montana's Independent Deduction System

Montana deliberately sets its own standard deduction at $5,540 (single), which differs from the federal standard deduction of $16,100. Combined with a $3,000 personal exemption, Montana provides a dual-layer deduction system before its graduated brackets apply. This independence from federal deduction rules means your Montana taxable income starting point may differ significantly from your federal return.

No Sales Tax in Montana

Montana is one of only five states with no sales tax (along with Montana, New Hampshire, Delaware, and Alaska). While Montana workers face a higher income tax rate (up to 5.65%), they pay no state or local sales tax on purchases. This is a significant cost-of-living advantage. The average American household spends thousands per year on sales tax in states that impose it.

Social Security Taxation in Montana

Montana is one of a small number of states that taxes Social Security benefits. Montana allows a $5,500 pension/annuity exclusion for qualifying taxpayers with AGI below certain thresholds. Social Security is taxed following federal taxation rules. Verify 2026 exclusion amount and income limits. This affects retirees in Montana and is an important consideration when comparing the state's overall tax burden to states that fully exempt Social Security.

How Your Montana Paycheck Is Calculated

Gross pay: Your annual salary divided by the number of pay periods.
Federal income tax: 2026 progressive brackets (10%-37%) after the federal standard deduction of $16,100 (single) or $32,200 (MFJ).
Social Security: 6.2% on wages up to $184,500.
Medicare: 1.45% on all wages, plus 0.9% above $200,000 (single).
Montana state income tax: 2-bracket progressive system (4.70% to 5.65%).

Montana Standard Deduction

Montana's standard deduction for 2026 is $5,540 for single filers and $11,080 for married filing jointly. This is subtracted from gross income before Montana's tax brackets are applied. Note: the state deduction is separate from and much smaller than the federal standard deduction of $16,100.

Retirement Income in Montana

Montana offers a partial exclusion for pension and retirement income. Some retirement income may be exempt or receive preferential treatment depending on the source and amount. Montana allows a $5,500 pension/annuity exclusion for qualifying taxpayers with AGI below certain thresholds. Social Security is taxed following federal taxation rules. Verify 2026 exclusion amount and income limits.

Worked Examples

Example 1: $135,000/year - Single, Monthly

Profile: $135,000 annual salary, Single filer, paid monthly (12 paychecks/year)

Gross per period: $11,250.00
Federal income tax: -$1,761.17
Social Security: -$697.50
Medicare: -$163.13
Montana state income tax: -$592.44
Net take-home pay: $8,035.76 per paycheck ($96,429/year)
Effective total tax rate: 28.57%

Example 2: $85,000/year - Head of Household, Semi-monthly

Profile: $85,000 annual salary, Head of Household filer, paid semimonthly (24 paychecks/year)

Gross per period: $3,541.67
Federal income tax: -$289.50
Social Security: -$219.58
Medicare: -$51.35
Montana state income tax: -$167.72
Net take-home pay: $2,813.52 per paycheck ($67,524/year)
Effective total tax rate: 20.56%

Example 3: $48,000/year - Married Filing Jointly, Biweekly

Profile: $48,000 annual salary, Married Filing Jointly filer, paid biweekly (26 paychecks/year)

Gross per period: $1,846.15
Federal income tax: -$60.77
Social Security: -$114.46
Medicare: -$26.77
Montana state income tax: -$66.74
Net take-home pay: $1,577.41 per paycheck ($41,013/year)
Effective total tax rate: 14.56%

Montana Tax Notes

Graduated brackets: 2 brackets from 4.70% to 5.65%.
Supplemental withholding rate: 5.65% for bonuses and supplemental wages.

Montana does not impose local income taxes. There is no general sales tax. Some resort communities levy a 3% resort tax on lodging, restaurants, and certain goods/services.

OBBBA Conformity

Montana conforms to the federal OBBBA deductions for tips and overtime. These deductions reduce both your federal and Montana state taxable income.

Frequently Asked Questions

What taxes are deducted from my Montana paycheck?

Your Montana paycheck has deductions for federal income tax (10%-37%), FICA (Social Security + Medicare), and Montana state income tax using graduated brackets (2 brackets).

How accurate is this paycheck calculator?

This calculator estimates take-home pay using 2026 federal and Montana state tax rates. It models federal income tax, FICA, and state income tax. It does not include pre-tax deductions (401(k), HSA, health insurance premiums), post-tax deductions, or state-specific payroll taxes (disability insurance, paid leave). Your actual paycheck may differ.

How do Montana's income tax brackets work?

Montana uses a graduated (progressive) income tax with 2 brackets. Each bracket applies only to income within that range, not your entire income. For example, if you earn enough to reach the third bracket, only the income above the second bracket's threshold is taxed at the third bracket's rate.

What tax bracket am I in for Montana?

Your Montana bracket depends on your taxable income (after deductions) and filing status. The calculator above shows your effective state tax rate, which is usually lower than your marginal bracket rate because lower portions of your income are taxed at lower rates.

Is my pension or retirement income taxed in Montana?

Montana offers a partial exclusion for pension and retirement income. Some retirement income may be exempt or receive preferential treatment depending on the source and amount. Social Security benefits are partially taxed at the state level.

How are bonuses and supplemental wages taxed in Montana?

Montana withholds state tax on bonuses, commissions, and other supplemental wages at a flat rate of 5.65%. This may differ from your regular withholding rate. At the federal level, supplemental wages are typically withheld at a flat 22% (or 37% above $1 million).

Does Montana conform to the OBBBA overtime and tips deductions?

Yes. Montana conforms to the federal OBBBA deductions for tips and overtime. These deductions reduce both your federal and Montana state taxable income, giving you a double benefit.

Does Montana tax Social Security benefits?

Yes. Montana is one of a small number of states that taxes Social Security benefits at the state level. Montana allows a $5,500 pension/annuity exclusion for qualifying taxpayers with AGI below certain thresholds. Social Security is taxed following federal taxation rules. Verify 2026 exclusion amount and income limits. Most states fully exempt Social Security from state income tax, making this a notable distinction for retirees living in or considering Montana.