Montana Withholding Tax




What is Montana Withholding Tax?

Withholding tax is the amount of employee’s pay withheld by the employer and sent directly to the government as partial payment of state income tax.  The amount of withholding tax depends on employee’s income.  The Montana state income tax is between 2.0%-5.75%. Therefore, the withholding tax should be similar to the state income tax range.

Employees do not need to take any action.  The employers/businesses will need to deduct the withholding tax from employee’s paycheck and submit and file the withholding tax to Montana Dept of Revenue.

How much is Montana Withholding Tax?

Since Montana withholding tax withheld is used to pay for employee’s Montana state income tax, the withholding tax should correlate with state income tax bracket.  The Montana state income tax rate ranges from 2.0% to 5.75%.  The withholding tax should be within the state income tax rate range.

State Year  State Income Tax Rate Withholding Tax Rate
Montana 2015 2%-5.75% 2% to 5.75%

How to File Montana Withholding Tax?

Employees do not need to do anything.

Employers/Businesses need to register withholding tax account with Montana Department of Revenue.  Depending the size of the company, every three months, the employers have to file a quarterly withholding reports and submit withholding tax to the Department of Revenue.  Most small businesses need to file quarterly while larger businesses need to file more frequently.

Montana Withholding Tax Forms

Form Number Form Description
Form W-4  Withholding Certificate
Form MW1  Withholding Tax Payment Return
Form REG Withholding Tax Registration

How to Register for Montana Withholding Tax?

Businesses with employees will need to register for Montana Withholding account. The easiest and fastest way to register for Withholding tax is online.

Click here to register for Montana Withholding Tax.

When to File and Deadlines for Montana Withholding Tax Return

Generally, Montana Withholding Tax returns have to be filed every three months, ending on March 31 (Q1), June 30 (Q2), September 30 (Q3) and December 31 (Q4). Typically, the deadline to mail Montana Withholding Tax return is the last day of the following month.

Quarter Months Deadline
Q1 January - March April 30
Q2 April - June July 31
Q3 July - September October 31
Q4 October - December January 31

Montana MT Withholding Tax Contacts and Address:

For more information or help on Montana Withholding Tax, please use the contact information below

Website Montana Dept of Revenue
Telephone 866-859-2254
Email DORCustomerAssistance@mt.gov
Address Montana Department of Revenue
125 N. Roberts 3rd Floor
Helena  MT 59604

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