> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.sosmt.gov/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# When filing for reinstatement, withdrawal, or resolving an active-suspended tax-related case in Montana, is a Title 15 Tax Certificate requi

Filings that require submitting a Tax Certificate (Title 15) document include reinstatements, withdrawals, and active-suspended (tax-related) cases. Use the online portal and upload the documents to the page.

You must apply online through the Montana Department of Revenue. Please visit [tap.dor.mt.gov](https://tap.dor.mt.gov/_/). An approved certificate will be sent by email. Once you have received this document, save it on your computer.