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State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Montana Department of Revenue
PO Box 5805
Helena, MT 59604-5805
Email: DORCustomerAssistance@mt.gov
Phone: 406-444-6900
State electronic filing details
Grace period | 10 days |
E-filing mandate | No |
Accepts state-only filings | Yes |
Return types accepted |
Resident Nonresident Part-year Amended |
Return types not accepted |
Estimate Payments Extensions |
Accepts returns with these conditions |
Refund Zero balance Balance due |
Direct deposit of refunds | Yes |
Accepted forms of payment |
Direct debit (EFW) Electronic funds transfer (EFT) Credit card |
Signature requirements | None |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations |
Contact information
Montana Department of Revenue
Email: DORCustomerAssistance@mt.gov
Phone: 406-444-6900
State electronic filing details
Grace period | 10 days |
E-filing mandate | No |
Accepts state-only filings | Yes |
Return types accepted |
C Corporation S Corporation Consolidated/Combined Amended Short-year Composite (part of main return e-file) Withholding (part of main return e-file) |
Return types not accepted |
Estimate Payments Extension |
Direct deposit of refunds | Yes |
Accepted forms of payment |
Direct debit (EFW) Electronic funds transfer (EFT) Check by mail |
Signature requirements | None |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations |
State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Montana Department of Revenue
Email: DORCustomerAssistance@mt.gov
Phone: 406-444-6900
State electronic filing details
Grace period | 10 days |
E-filing mandate | Partnership returns with more than 100 partners. |
Accepts state-only filings | Yes |
Return types accepted |
Partnership Amended Short-year Composite (part of main return e-file) Withholding (part of main return e-file) |
Return types not accepted |
Estimate Payments Short-year |
Direct deposit of refunds | Yes |
Accepted forms of payment |
Direct debit (EFW) Check by mail |
Signature requirements | None |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations |
State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Montana Department of Revenue
Email: DORCustomerAssistance@mt.gov
Phone: 406-444-6900
State electronic filing details
Grace period | |
E-Filing mandate | None |
Accepts state-only filings | Yes |
Return types accepted |
Resident Non-resident Amended |
Return types not accepted |
Estimate payments Extension |
Accepts return with these conditions |
Refund Zero balance Balance due |
Direct deposit of refunds | Yes |
Accepted forms of payment |
Direct debit Check |
Signature requirements | None |
Supports PDF attachments | Yes |
Special considerations | None |
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