State of Maryland Income Tax Carroll County, Maryland Local Income Tax

Carroll County Income Tax


tax rate for residents who live in Carroll County


tax rate for nonresidents who work in Carroll County

Residents of Carroll County pay a flat county income tax of 3.05% on earned income, in addition to the Maryland income tax and the Federal income tax.

Nonresidents who work in Carroll County pay a local income tax of 1.25%, which is 1.80% lower than the local income tax paid by residents.

What is a local income tax?

A local income tax is a special tax on earned income collected by local governments like counties, cities, and school districts. Fourteen states including Maryland allow local governments to collect an income tax.

While the federal income tax and the Maryland income tax are progressive income taxes with multiple tax brackets, all local income taxes are flat-rate taxes which are the same for every taxpayer regardless of income.

Another major difference between local income taxes and federal or state taxes is that most local taxes are collected only on earned income, and not on capital gains or other non-earned income like interest and dividends.

How do you pay the Carroll County income tax?

The Carroll County income tax is due on April 15th, when you file your federal and state tax returns. Because calculating your local income tax is relatively simple compared to your other tax returns, many tax preparers will file your Carroll County income tax return for free.

If you file your own taxes, the Carroll County tax collector will likely mail you a copy of the tax forms you need by April. Unfortunately, many leading e-file providers (like TurboTax and H&R Block) do not support local income taxes. Carroll County may have a proprietary e-filing system you can use alongside your state and federal e-filing provider.

Other local income taxes in Maryland

We have information on the local income tax rates in 24 Maryland localities. Use this list to compare the Carroll County income tax with local income taxes in nearby counties. Click on any city or county for more details.