This guide walks you through the full process of creating a Maryland Tax Connect profile and linking it to your sales tax account. It covers everything from signing up for a Tax Connect profile using your Kintsugi virtual mail address, through registering as an administrator and connecting the account using your FEIN and Central Registration Number (or a registration PIN if a prior return isn't on hand).
Go to the MD Tax Connect Portal and click Sign Up.
Click Create a Maryland Tax Connect Profile.
Click the Next button to continue.
Tick I agree to the above Terms & Conditions and complete reCaptcha then click Next
Enter the required User Information, then click Next:
First Name
Last Name
Title (optional)
Proposed User ID
Daytime Phone
Extension (optional)
Mobile Phone (optional)
Email / Confirm Email — use the client's Kintsugi virtual mail address (see below)
Note: For Email, copy your Virtual Mail Group ID from the Kintsugi app.
You can find this by logging into your Kintsugi app then navigating to Configuration > Kintsugi Mail > Virtual Mail Group > Group ID
Click Yes to continue.
Check the virtual email address you entered on the form and you should receive a confirmation email with a temporary password, like the image below.
Set up the security questions, then save the login credentials and security question answers in the Kintsugi app.
Update the password to meet Maryland's requirements and click Save.
After setting up the account, we can now link the sales tax account.
Log back in to your Maryland Tax Connect account. Since the new User ID isn't yet associated with a taxpayer account, you'll be prompted to choose between registering as an Administrator (to manage the account) or a User (to perform tax functions on behalf of an existing administrator). Select register as an administrator.
On the account access options, select "I am requesting Administrative access to my tax account(s) and DO NOT have a PIN or my PIN has expired," then click Next.
Note: If you don't have a copy of (or information from) a previously filed return, you can request your registration PIN by emailing MDTAXCONNECTHELP@marylandtaxes.gov. Include your legal business name, FEIN, and account type (Sales and Use Tax). Once you receive the PIN, select "I am requesting Administrative access to my tax account(s) and have a PIN" instead. Keep in mind that the PIN has an expiration date.
Enter the Tax Account Information, then click Next:
ID Type: FEIN
ID Number: the business's EIN
Central Registration Number (CRN): the Maryland sales tax number
Period End Date for the last return filed under this CRN
Payment amount made in the last 120 days for this CRN (enter 0 if no payment was made)
On the Authorized Taxpayer – Signature step, click Yes to confirm you're registering as a Maryland Tax Connect user.
You'll see a Registration Confirmation message and be logged out automatically. Log back in to confirm the tax account now shows as linked.
If any step behaves unexpectedly (for example, the portal rejects the CRN or EIN entered), double-check the values against the client's most recent Maryland sales tax notice before retrying, and flag the account in the import tracker if the issue persists.
You can also reach out to our support team anytime using the chat bubble in the bottom-right corner of the screen; we are always happy to help.
