What is the business tax rate in Mason?
One Percent (1%)

Who must pay the business income tax?

• Corporations
• Unincorporated businesses (i.e. sole proprietorships, rental properties, partnerships, farm income)
• Trusts and estates
• Professions derived from work done, services performed or rendered, and business or other activities conducted in the City of Mason
• Business conducted by non-residents for work done or services performed in the city

Am I required to withhold Mason municipal taxes from my employees?
Yes, if you are located within or doing business within the City of Mason and you employ one or more persons, whether as an employee, officer, director or otherwise. Withholding requirements are explained in Tax FAQs - Frequently Asked Questions About Mason's Withholding Requirements, available by clicking on the link and from the Mason Tax Office.

What types of income are taxable?
Net profits, as shown on the federal tax return, are subject to Mason income tax. A copy of your federal return must be included with your Mason return.

What are the due dates for filing returns?
BR - Annual Return
Calendar Year Filers: April 15
Fiscal Year Filers: Four months after the end of the fiscal year

W-1 - Withholding Tax Return
Quarterly Filers: April 15, July 15, October 15, and January 15
Monthly Filers: On or before the 15th of the following month

W-3 - Withholding Tax Reconciliation
All Filers: On or before February 28

Extensions (Form BR only)
All Filers: Must apply in writing by the due date of the return

What if I miss the due date?
A penalty and interest will be assessed on any unpaid tax liability, as shown below.

INTEREST - One- half percent (.05%) of the unpaid balance per month or any part thereof

PENALTY - The greater of twenty dollars ($20.00) or:

One percent (1%)of the unpaid balance per month or any part thereof, if payment is made 6 months or less after it is due.

Two percent (2%)of the unpaid or any part thereof, if payment is made more than 6 months but less than 12 months after it is due.

Four percent (4%) of the unpaid balance per month or any part thereof, if payment is made more than 12 months after it is due.

If I overpay my taxes, can I get a refund?
Yes. The refund amount will be figured on your Mason tax return. You may have the amount applied to your next year's estimate or, if the amount is over $1.00, you may request a refund check by filling out the appropriate entries on the tax return.

Can I get an extension of the filing deadline?
Yes, if a written request is submitted on or before the due date for filing the return. Extensions may not exceed six months or one month beyond any extension requested of or granted by the Internal Revenue Service.

Can a return be amended after it is filed?
Yes. An amended return must be filed to report additional income and to pay any additional tax due, or to claim a refund of overpaid taxes.

How are payments applied to my account?
All payments are first applied to interest charges, then penalties in the order in which they were assessed, then against past due taxes in the order in which they became due, and then against all current taxes due.

How do I obtain the appropriate Mason Tax forms?
When you call or write the Mason Tax Office to open a new business account, your business will be added to the distribution list for tax forms. Each year, annual returns (form BR) and notices of estimated taxes due will be automatically sent by mail to all business account holders.

What publications are available from the Mason Tax Office?

The TAX FAQs series is a set of informational brochures that answer questions often asked of the Mason Tax Office. There are three separate brochures:
Tax FAQs - Frequently Asked Questions About Mason's Individual Income Tax
Tax FAQs - Frequently Asked Questions About Mason's Business Income Tax
Tax FAQs - Frequently Asked Questions About Mason's Withholding Requirements

Copies of these documents are available at the customer service window in the Masont Municipal Center.