Massachusetts sales tax for small businesses: what is taxed and when to file

Key takeaways

• The Massachusetts sales tax is 6.25% of the sales price or rental charge, set by the state in M.G.L. c. 64H, s. 2. The rate is the same in Boston and every other city and town.
• Clothing is exempt up to $175 per item. On a single item priced above $175, Massachusetts taxes only the amount over $175, so a $200 suit carries $1.56 in tax, according to the Department of Revenue (DOR).
• Food for home consumption, most personal and professional services, newspapers and magazines are exempt. Restaurant meals, standardized software and telecommunications services are taxed.
• A business that collects more than $1,200 a year in sales and use tax files Form ST-9 monthly. From $101 to $1,200 the return is quarterly, and at $100 or less it is annual.
• Sales and use tax returns are due on or before the 30th day after the filing period ends, and DOR requires businesses to file them electronically through MassTaxConnect.

This guide is for owners and managers of small shops, online sellers and service firms in Boston and the cities and towns around it. The Massachusetts sales tax is a 6.25% state tax on retail sales and rentals of tangible personal property and on telecommunications services. You, the vendor, collect it from the buyer and send it to the Massachusetts Department of Revenue. The state sets the rate, so it is the same in Boston, Cambridge, Somerville and Brookline.

The sections below cover what is taxed and what is exempt, who has to register, how often Form ST-9 is due, the advance payment rule for larger filers, how the use tax and the August sales tax holiday work, and the penalties for filing late.

What is the Massachusetts sales tax rate?

The Massachusetts sales tax rate is 6.25% of the sales price or rental charge. Chapter 64H, Section 2 of the General Laws sets the rate on a vendor’s gross receipts from retail sales. The tax applies to tangible personal property, a category that includes gas, electricity and steam, and to telecommunications services sold or rented in Massachusetts.

The rate is a state rule. The one local add-on most small businesses meet is on restaurant meals: a city or town that has adopted the local option meals excise adds 0.75% to the 6.25% state tax on meals, for 7% in total, according to DOR’s sales tax on meals guide.

What is taxed and what is exempt from Massachusetts sales tax?

Massachusetts sales tax applies to most physical goods sold at retail, and the exemptions are written into the law item by item. DOR’s sales and use tax guide lists these among the items a small business is likely to sell tax-free:

• Food for human consumption, other than restaurant meals.
• Clothing, up to $175 per item. Apparel designed solely for athletic or protective use is taxable.
• Newspapers and magazines. Newsletters are generally taxable.
• Prescription drugs and prescription eyeglasses.
• Personal and professional services such as accounting, legal work, haircuts and car repairs.

The clothing exemption has a ceiling per item, not per sale. If one item costs more than $175, you charge tax only on the amount above $175. DOR’s example is a $200 suit: $25 is taxable, and the tax is $1.56.

Several things owners assume are exempt are taxed. Standardized software is taxable whether it is delivered on a disk or electronically, and so are fees for remote access to it. Books, stationery, furniture and tools are generally taxable. A service business that also sells products has to itemize the products and charge tax on them.

Who has to register to collect Massachusetts sales tax?

Anyone who sells or rents taxable goods or telecommunications services in Massachusetts has to register with the Department of Revenue as a vendor before making sales.

Registration is done online. DOR’s MassTaxConnect registration page gives these steps for a new business:

1. On the MassTaxConnect home screen, choose Sign Up, then Register a New Business.
2. Enter your federal Employer Identification Number (a sole proprietor with no employees can use a Social Security number), business start date, legal and mailing addresses, and owner or officer details.
3. Select the Sales and Use tax type. A restaurant or cafe selects Meals, Food and Beverage as well.

After approval, DOR mails a sales and use tax registration certificate, Form ST-1, for each business location. Form ST-1 must be posted where it is visible at all times. The DOR page does not state a fee for registering, so confirm that in MassTaxConnect when you apply.

Remote and marketplace sellers

An out-of-state seller becomes a Massachusetts vendor when its sales into the state exceed $100,000 in the prior or current calendar year. The rule took effect October 1, 2019 under regulation 830 CMR 64H.1.9, according to DOR’s remote seller and marketplace facilitator FAQs. If you sell through an online marketplace that collects and remits the tax, you are generally not responsible for tax on those sales, provided the marketplace gives you a collection certificate, Form ST-16. Only your direct sales count toward your own $100,000 threshold.

How often do you file a Massachusetts sales tax return?

How often you file a Massachusetts sales tax return depends on how much sales and use tax you collect in a year. The return is Form ST-9, and DOR’s tax due dates page sets three schedules:

Annual tax collected	Filing frequency	Form ST-9 due
$100 or less	Annual	On or before the 30th day after the end of the year
$101 to $1,200	Quarterly	On or before the 30th day after the end of the quarter
More than $1,200	Monthly	On or before the 30th day after the end of the month

Meals are on a separate schedule: a business registered for sales tax on meals, food and beverage files monthly no matter how little it collects.

Returns go through MassTaxConnect. DOR requires electronic filing for businesses with sales and use tax liabilities, including new businesses and returns that show zero tax.

What is the advance payment rule for larger Massachusetts sales tax filers?

The advance payment rule requires a business with more than $150,000 in cumulative tax liability in the previous calendar year to pay part of each month’s Massachusetts sales tax early. Under DOR’s advance payment requirements, in effect since April 2021, the payment is due on or before the 25th of the month. The payment covers the tax owed for the 1st through the 21st, or at least 80% of the prior month’s liability. The balance is due with the return on the 30th day after the month ends.

Most small businesses fall under the threshold and make no payment on the 25th. For those over it, DOR applies a 5% penalty to the underpaid part of an advance payment. Use tax on your own purchases is left out of both the $150,000 count and the advance payment.

What is the Massachusetts use tax, and when does a business owe it?

The Massachusetts use tax is a 6.25% tax on taxable items you use, store or consume in Massachusetts when no sales tax, or tax at a lower rate, was paid at purchase. A common case is equipment ordered online from a seller that did not charge Massachusetts tax.

A business reports use tax on Form ST-10, due April 15 for purchases made in the prior calendar year, according to DOR. Sales tax you paid to another state can be credited against the use tax, up to 6.25%, but only if that state has a reciprocal agreement with Massachusetts.

Goods you buy to resell are treated differently. You give your supplier a Sales Tax Resale Certificate, Form ST-4, and pay no tax on the inventory.

How does the Massachusetts sales tax holiday affect retailers?

The Massachusetts sales tax holiday is a weekend when most retail items priced at $2,500 or less are sold free of the 6.25% tax. The 2026 holiday was Saturday, August 8 and Sunday, August 9, according to DOR’s sales tax holiday FAQs. DOR had not posted 2027 dates as of November 13, 2026.

The holiday covers purchases by individuals for personal use only. Sales to corporations and other businesses stay taxable, and so do purchases an individual makes for business use. Meals, motor vehicles, motorboats, telecommunications services, gas, steam, electricity, tobacco, marijuana products and alcoholic beverages are excluded. If a single item costs more than $2,500, the full price is taxable.

What happens if you file or pay Massachusetts sales tax late?

Filing or paying Massachusetts sales tax late brings two separate penalties plus interest. DOR’s sales and use tax guide lists them:

• Late filing: 1% of the balance due per month or part of a month, up to 25%.
• Late payment: 1% of the unpaid tax per month or part of a month, up to 25%.
• Interest: the federal short-term rate plus 4%, compounded daily.

Keep records of gross receipts (taxable and nontaxable), exemption certificates and purchases for at least three years from the date the return was filed or was due, whichever is later. DOR can audit back six years when tax is understated by more than 25%, and no time limit applies when no return was filed.

What should you recheck before you act?

The figures below were checked against Department of Revenue pages and the General Laws on November 13, 2026. Confirm each one on mass.gov or in MassTaxConnect before you rely on it:

• The 6.25% rate and the $175 clothing limit: DOR’s sales and use tax guide, last updated May 7, 2026.
• The $100 and $1,200 filing thresholds and the 30th-day due date: DOR’s tax due dates page, last updated March 23, 2026.
• The $150,000 advance payment threshold and the 25th-of-the-month due date: DOR’s advance payment requirements page, last updated April 22, 2026.
• The $100,000 remote seller threshold: DOR’s remote seller FAQs, last updated February 1, 2026.
• Sales tax holiday dates and the $2,500 cap: DOR’s sales tax holiday FAQs, which showed no 2027 dates on the date checked.
• Whether your city or town has adopted the 0.75% local option meals excise: DOR keeps the list, linked from its meals guide.

This guide is general information, not legal or tax advice. Rules and fees change; confirm the current requirements with the agency named before you file or pay.

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