• Individual Taxpayer Login

    You must have your City Tax Account number to use this Tool. If you do not have or know your City Tax Account Number, please click here.

    All users (former and new) must activate their online Tool account on an annual basis, and create a password and PIN for use on the Tool this year.

    • 1. If this is your first visit to the site for the current tax year you must first activate your electronic filing account in order to log in. Click on the "activate your electronic filing account" link.

    • 2. You will be asked for your Tax Account Number (if you do not know your account number click here, to look up your Account Number) and the last 4 digits of your SSN.

    • 3. After successfully entering your Tax Account Number and Last 4 digits of your SSN, you will need to create a PIN and Password, provide your email address and select your security question and image.

    • 4. Once this is complete you are an activated user and you will be able to login at Step 2 to use the Tool.

    STEP 2) ACTIVATED USER LOGIN / Upload Tax Documents Enter your tax account number below to login and upload tax documents to the City of Mason Tax Office. This Upload tool may be used to submit the documents needed for us to prepare a Mason Income Tax Return on your behalf or, for an already-file return, to submit additional tax documents as requested by our office.

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    Enter your Tax Account Number:

    Account Number:

    3) View estimated payments on individual accounts for tax year 2021 - Click here