What is the sales tax rate in South Yarmouth, Massachusetts?

The combined sales tax rate in South Yarmouth, Massachusetts is 6.300% as of 2026. This includes the Massachusetts state rate of 6.300% plus local jurisdiction taxes.

How is the South Yarmouth sales tax calculated?

Multiply your purchase amount by 6.300% (or 0.00630) to get the tax owed. For example, a $100 purchase incurs $6.30 in sales tax.

What is the Massachusetts state sales tax rate?

The base Massachusetts state sales tax rate is 6.300%. Local jurisdictions may add additional taxes on top of this rate.

Does South Yarmouth have a county sales tax?

South Yarmouth does not levy an additional county-level sales tax beyond the state base rate.

When was the South Yarmouth sales tax rate last updated?

The South Yarmouth sales tax rate was last verified on March 27, 2026. We cross-reference all rates against the official State Department of Revenue data.

Live Data: April 2026

South Yarmouth, MA Sales Tax Rate 2026

The combined sales tax rate in South Yarmouth, Massachusetts is 6.300%.

Combined Rate 6.300%

State6.300%

South Yarmouth Sales Tax Breakdown

Jurisdiction	Rate
Massachusetts State Sales Tax	6.300%
Total Combined Rate	6.300%

Which County Is South Yarmouth In?

South Yarmouth falls within Barnstable, Massachusetts. Barnstable imposes a 0.000% county-level sales tax in addition to the Massachusetts state base rate.

South Yarmouth ZIP Codes

The following ZIP codes are mapped to South Yarmouth for sales tax purposes. All listed codes apply the 6.300% combined rate.

02664

Nearby Tax Rates

Combined Rate

Combined Rate

Business Nexus in Massachusetts

Economic Nexus Threshold

Selling into Massachusetts from out of state? Once you exceed $100,000 in annual sales or 200 transactions, you must register and collect Massachusetts sales tax.

FAQ: South Yarmouth Sales Tax

The combined sales tax rate in South Yarmouth, Massachusetts is 6.300% as of 2026.

Multiply your purchase price by 6.300% to find the tax owed. A $500 purchase would include $31.50 in sales tax.

Groceries are generally taxable in Massachusetts. Check the official Department of Revenue for specific exemptions.

Vehicle purchases in South Yarmouth are subject to the 6.300% combined rate, though some states apply different rules for vehicle sales. Verify with the Massachusetts Department of Revenue or DMV.

Register for a sales tax permit through the official Massachusetts Department of Revenue website. Registration is typically free and required before collecting any sales tax.

Sales Tax Calculator

Using 6.300% rate for South Yarmouth, MA

Purchase Amount ($)

Tax Amount $0.00

Total with Tax $100.00

Rate applied: 6.300% combined

Official Tax Authority

Massachusetts Department of Revenue

Filing Deadline: Monthly returns due the 20th; quarterly returns due the 20th. File via MassTaxConnect.

Visit Official Portal (617) 887-6367