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TaxBandits supports state-only filing for W-2 forms.
Montana Form W-2 & MW-3
Filing Requirements
Meet your Montana W-2 filing requirements confidently with TaxBandits!
Simplify Your Montana W-2 Filing with TaxBandits
- Complete Montana tax filing compliance
- We support state-only filing
- Free retransmissions and corrections
E-file at just $0.95/form
Montana Filing Requirements for W-2
The State of Montana mandates W-2 filing, even if no state tax is withheld.
| Condition | Filing Method | Additional Forms | Due Date |
|---|---|---|---|
| If Montana Tax Was Withheld | Direct State Filing | Form MW-3 | February 02, 2026 |
| If NO Montana Tax Was Withheld | Direct State Filing | Not Required | February 02, 2026 |
Ready to start filing W-2s with Montana?
Information Required to File W-2 Forms with Montana
Discover the key information needed to file Form W2 with the State of Montana.
1. Employer’s state ID number
The employer's state identification number refers to the Montana Withholding Account Number.
Montana State ID Format:
- 13 digits starting with 10 digits followed by a hyphen, followed by 3 constants WTH (Eg, 9999999999-WTH)
- 13 digits starting with 7 digits followed by a hyphen, 3 digits followed by a hyphen, followed by 3 constants WTH (Eg, 9999999-999-WTH).
The state accepts your federal EIN as state ID.
2. State income
The total amount of taxable income that is subject to the Montana state income tax.
3. State tax withheld
The total amount of state income taxes withheld from the employee’s income.
E-file W-2s to the State of Montana in minutes with TaxBandits!
Montana Annual Reconciliation Form MW-3
Form MW-3 is an Annual Reconciliation used to report the total income taxes withheld from employees and taxes remitted to the state. It's also used to claim an overpayment refund or pay if the taxes are underpaid.
Information Reported on Form MW-3:
- Number of 1099s and W-2s Submitted
- Montana Annual W-2 1099 Withholding Tax Reconciliation
- Total Montana withholding tax paid
- Breakdown of deposit period, deposit paid, tax withheld, tax paid, and the difference between them
TaxBandits does not support filing Form MW-3 with the state. The payer must take care of filing Form MW-3 directly with the State of Montana.
E-file W-2 with Montana state in minutes using TaxBandits!
TaxBandits – Simplifying Montana State W-2 Compliance
TaxBandits supports the e-filing of W-2 forms directly with the Montana Department of Revenue, ensuring compliance with state regulations.
Supports State-Only Filing
With TaxBandits, you can file W-2 forms directly with your state, even if you don’t file your federal W-2 with us.
State Filing Guidance
TaxBandits provides step-by-step instructions to complete the e-filing process from start to end without any hurdles.
Free W-2 State Corrections
TaxBandits supports e-filing of W-2 corrections with the State of Montana at no additional cost if the original form was filed
with us.
Free Resubmissions
If your W-2 forms are rejected by the Montana Department of Revenue, you can correct errors and resubmit them for free.
Create a TaxBandits account to start filing your Montana W-2 returns!
How to File Montana W-2 with TaxBandits?
Create your account and follow these steps to easily e-file your W-2s with the State of Montana!
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Step 1: Choose Form W-2
Select the type of W-2 form you want to file.
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Step 2: Enter Form W-2 details
Complete the form using manual entry or other bulk import options.
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Step 3: Complete State Filing Information
Provide the required Montana state details for Form W-2.
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Step 4: Choose Distribution Options
Select the form distribution option — postal mailing, online access, both, or print and mail yourself.
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Step 5: Review and Transmit
Review your form and transmit it to the SSA and state agencies.
Start e-filing W-2 Forms with Montana today—TaxBandits makes it quick and easy!
Frequently Asked Questions
Does Montana require W-2 filing?
Yes, Montana mandates the filing of the W-2 forms even if no state tax is withheld.
TaxBandits enables you to file W-2 forms directly with the state of Montana, even if you filed your federal W-2 elsewhere. E-file now
Does Montana require any additional forms to be submitted while filing W-2?
Yes, the state of Montana requires you to submit Form MW-3 with your W-2.
When e-filing, you must submit Form MW-3 with your W-2s.
If you prefer paper filing of W-2, you need to submit both W-3 and MW-3 to the state.
What is the deadline to file W-2 with Montana?
The filing deadline for Form W-2 and Form MW-3 with Montana is January 31.
If the deadline falls on a weekend or a federal holiday, the next business day is the deadline.
Can I electronically file W-2 with Montana?
Yes, Montana provides an option to e-file W-2. Employers filing more than 250 W-2s are required to file electronically.
If you’re looking for an e-file service provider, check out TaxBandits. We support the filing of W-2 with the SSA and the state of Montana.
What are the W-2 penalties for Montana?
The state of Montana imposes penalties for the following:
Not filing W-2 on time
Failure to file W-2 on time will result in penalties. The penalty would be:
- Minimum of $50, or
- 5% of your unpaid taxes per month
- Maximum of 25% of your unpaid taxes.
Late payment of withheld taxes
If you have not paid your taxes on time, you may be charged the following penalties:
- 0.5% per month, up to 12% of the unpaid taxes, or
- 1.5% per month, up to 15% of the unpaid taxes
Underpayment
- For underpayment, the penalty is 20% of the unpaid taxes.
Learn more about Form W-2 penalties.
Where do I mail W-2 forms when filing with the State of Montana?
You are required to mail in the W-2 copies only when you paper file. When mailing W-2s, Form MW-3 & W-3 should be attached. Also, it is mandatory to e-file if you are filing 250 or more W-2s.
E-filing is the best choice for submitting W-2s quickly. This filing method enables you to easily track your return.
If you still prefer paper filing of W-2s, send the copies to the address below:
Montana Department of Revenue,
PO Box 5835,
Helena, MT 59604-5835.
Can I file W-2c with the State of Montana?
Yes! You can file W-2c with Montana to correct previously filed W-2s. The state accepts both paper filings and e-filings of W-2c.
If you choose to paper-file W-2c, send the copies to the mailing address below:
Montana Department of Revenue,
PO Box 5835,
Helena, MT 59604-5835.
TaxBandits supports W-2c e-filing with the Montana Department of Revenue. Create your FREE account now to start e-filing your W-2c forms.
Get started with TaxBandits today and stay compliant with the State of Montana! Start Filing Now
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