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State
Montana
Premium Tax Notes

Zero filings are required for annual filings. but are not required for quarterly filings

Important Premium Tax Due Dates:

  • Premium Tax Annual Filing – March 1
  • Premium Tax Filing Quarter One – April 15
  • Premium Tax Filing Quarter Two – June 15
  • Premium Tax Filing Quarter Three – September 15
  • Premium Tax Filing Quarter Four – December 15

Premium Tax and Captive

Kari Leonard
KLeonard2@mt.gov

Surplus Lines Tax Notes

Surplus lines electronic statements are available March 1st of each year. This accommodates the 60 day filing requirement for coverage issued in December.
Zero filings are not required.
For detailed information, please refer to the website at:
https://csimt.gov/insurance/surplus-lines/

Important Surplus Lines Due Dates:(OPTins Submission Date):

  • Montana Surplus Lines tax payments are due by April 1st of each year.

State Specific/Other Tax Notes

Captive Tax Filing Account

Important Captive Due Dates(OPTins Submission Date):

  • Montana Captive Insurance tax payments are due by March 1st of each year.

Tax Notes

Mandatory Premium Tax filings and payments
Mandatory Surplus Lines Tax filings and payments
Mandatory Captive Tax filings and payments

State Participation Type
OPTins
Service Override
Off