Small Business Tax Guide for DC, Maryland and Virginia

Operating a business in the Washington DC metropolitan area means navigating the tax codes of up to three different jurisdictions: the District of Columbia, Maryland, and Virginia. Each has its own income tax rates, filing requirements, sales tax rules, and business registration obligations. If you live in one jurisdiction, work in another, and have clients in all three, the compliance burden can be significant. This guide breaks down what small business owners in the DMV need to know.

Washington DC Business Taxes

The District of Columbia imposes a franchise tax (corporate income tax) on businesses that operate within DC. For tax year 2026, the DC corporate tax rate is 8.25% of taxable income. All businesses operating in DC must register with the DC Office of Tax and Revenue (OTR) and obtain a basic business license.

DC does not impose a personal income tax on pass-through business income at the entity level; instead, that income flows through to the individual owners and is taxed at DC individual income tax rates, which range from 4% to 10.75% for 2026. The top rate of 10.75% applies to income over $1 million.

DC has a combined sales and use tax rate of 6% on most goods and services. Some categories have higher rates: restaurant meals and takeout food are taxed at 10%, hotel accommodations at 14.95%, and alcohol at 10.25%. Businesses must register for a sales tax certificate and file returns monthly, quarterly, or annually depending on their sales volume.

Maryland Business Taxes

Maryland imposes a corporate income tax of 8.25% on corporations. Pass-through entities (S-Corps, LLCs, partnerships) are not taxed at the entity level, but Maryland offers a pass-through entity tax (PTET) election that allows these entities to pay state tax at the entity level. This is significant because it allows business owners to effectively bypass the federal $10,000 SALT deduction cap, resulting in substantial tax savings for many DMV business owners.

Individual income tax rates in Maryland range from 2% to 5.75%, plus a local income tax ranging from 2.25% to 3.2% depending on your county of residence. Montgomery County, for example, imposes a 3.2% local income tax, making the combined state and local rate up to 8.95% for high earners.

Maryland sales tax is 6% on most goods. Services are generally not subject to sales tax in Maryland, which is an important distinction from DC. However, certain digital products and cloud-based services became taxable in recent years under Maryland's digital advertising and digital goods legislation.

Virginia Business Taxes

Virginia imposes a corporate income tax of 6% on taxable income. Like Maryland, Virginia offers a pass-through entity tax election (PTET) at a rate of 5.75%, allowing S-Corp and LLC owners to deduct state taxes at the entity level. This has been a valuable tax-saving strategy for Virginia business owners since its enactment.

Individual income tax in Virginia tops out at 5.75% on income over $17,000. While the rate is lower than DC and Maryland, Virginia has a broader tax base because the top rate kicks in at a relatively low income threshold. There is no local income tax in Virginia (unlike Maryland), but some localities impose a Business, Professional and Occupational License (BPOL) tax based on gross receipts.

Virginia sales tax is 5.3% in most areas (4.3% state rate plus 1% local rate). In Northern Virginia (the Hampton Roads and Northern Virginia Transportation Authority regions), the rate is 6% to 6.3% due to additional transportation surcharges.

Multi-State Tax Obligations

Many DMV business owners face obligations in more than one jurisdiction. If you are a Maryland resident working in DC, DC may withhold income tax from your wages, but you generally receive a credit on your Maryland return for taxes paid to DC. The reciprocity rules can be complex, especially for business owners with income sourced in multiple states.

For businesses with employees or operations in multiple DMV jurisdictions, you may need to file business tax returns and payroll tax returns in each jurisdiction where you have nexus. Nexus is the legal connection that requires a business to collect and remit taxes in a particular state. Physical presence (an office, employees, or inventory) creates nexus, and in many cases, economic activity alone (meeting revenue or transaction thresholds) creates nexus as well.

Entity Selection Considerations for DMV Businesses

The choice between LLC, S-Corp, and C-Corp has state-level tax implications beyond the federal considerations. For DMV business owners, the pass-through entity tax elections offered by Maryland and Virginia are a significant factor. If you operate an S-Corp in Maryland or Virginia, the PTET election can save you thousands in federal taxes by converting a non-deductible SALT expense into a deductible entity-level tax.

DC does not currently offer a similar PTET election, which is a disadvantage for DC-based pass-through entities. However, DC has other incentives, including economic development zones and programs for qualified high-technology companies that can provide significant tax benefits.

Business Registration and Licensing

Each DMV jurisdiction has its own business registration requirements. In DC, you need a basic business license from the Department of Licensing and Consumer Protection, along with a clean hands certificate proving you have no outstanding tax obligations. In Maryland, you register with the State Department of Assessments and Taxation (SDAT) and may need additional licenses depending on your industry and county. In Virginia, you register with the State Corporation Commission and obtain any required local business licenses.

If you operate across state lines, you may need to foreign-qualify your business entity in each additional state. For example, a Virginia LLC that also operates in DC should register as a foreign LLC in DC.

Working With a DMV-Experienced CPA

The interaction of federal, state, and local taxes in the DC-Maryland-Virginia area creates complexity that goes well beyond what most business owners can navigate on their own. A CPA with specific DMV experience understands the reciprocity agreements, PTET elections, multi-state filing requirements, and local nuances that can make a material difference in your total tax burden. Whether you are choosing where to incorporate, deciding how to structure multi-state operations, or simply trying to comply with all filing obligations, local expertise is invaluable.