Everyone in the DMV knows about reciprocity. It is why a Maryland resident working in DC files only in Maryland, and why no one in the region thinks twice about a paycheck that crosses a border. The agreements are real and they work.

The problem is what people assume they cover. Reciprocity covers your paycheck. For a high earner, the paycheck is often the simplest line on the return.

What reciprocity actually does

DC, Maryland, and Virginia hold reciprocal agreements with one another. A resident of one who earns wages in another pays state tax only to their home state. A Virginia resident working a salaried job in DC files in Virginia. A Maryland resident commuting into Virginia has tax withheld and paid to Maryland. The work state steps aside, but only for wage and salary income.

That last clause is the whole article. Reciprocity applies to wages, salaries, and compensation for personal services. Nothing else.

Where it stops

These categories are not covered by DMV reciprocity, and they are exactly the income a high earner is most likely to have:

• Business and self-employment income
• S-corp and partnership income reported on a K-1
• Rental income from property in another state
• Capital gains, including gains on property sales

For this income, the ordinary rules apply: the state where it is earned or sourced can tax it, and you claim a credit for that tax on your resident return. The person reciprocity protects least is the person with the most going on.

The DC trap that catches Virginia and Maryland owners

Here is the one almost no one expects. Virginia’s own guidance is explicit that reciprocity covers individual income tax but not the DC Unincorporated Business Franchise Tax. If you live in Virginia or Maryland and run an unincorporated business (a sole proprietorship, partnership, or single-member LLC) that operates in DC, your salary may be exempt while the business itself owes a DC tax at the entity level.

So a consultant in McLean who assumed reciprocity meant no DC filing at all can be wrong in an expensive way. The wages are clean. The business is not. This is the most common multi-state surprise we see from DMV owners, and it traces directly to assuming reciprocity covers everything.

Three DMV situations, three different answers

A McLean consultant with an unincorporated business serving DC clients. Wages exempt under VA-DC reciprocity. The business can still owe the DC Unincorporated Business Franchise Tax. Reciprocity does not reach it.

A Silver Spring resident with a rental in Virginia. The rental income is sourced to Virginia and not covered by reciprocity. That means a Virginia nonresident return, a credit claimed back on the Maryland resident return, and Maryland’s county income tax layered on top of the state rate. Three moving parts on what looked like one rental.

A DC resident consulting across Maryland and Virginia. DC residents pay DC tax on all income. If the consulting work creates business nexus or sourced income in another state, that can add nonresident filings on top of the DC return.

Where people get the mechanics wrong

Two mistakes recur, and they fail in opposite directions:

• Claiming a credit for income that reciprocity already exempts. If wages were taxed by the wrong state by mistake, you fix it by filing for a refund there and submitting the exemption form to your employer, not by claiming an other-state credit on your resident return.
• Not filing the nonresident return for business or rental income. This is the costly one. Non-wage income sourced to another state usually requires a return there. Skip it and the liability sits unaddressed, accruing penalties and interest while you assume reciprocity handled it.

Why this gets expensive quietly

State tax agencies share data with each other and with the IRS. A return filed in one state that reports income clearly sourced to another is a visible mismatch. For a high earner the numbers are large enough to draw a notice, and by the time it arrives, penalties and interest have been compounding on a balance no one was tracking. Multi-state issues are cheap to plan around during the year and costly to fix after the fact.

What to do

The fix is not complicated, but it has to happen before filing, and ideally before the income is earned.

• Track where you work and where income is sourced, not just where you live
• Separate wage income (reciprocity) from business, rental, and gain income (sourcing rules) when you plan
• Confirm whether your business has a filing or franchise-tax obligation in DC, Maryland, or Virginia
• File the nonresident returns that non-wage income requires, and claim the resident-state credit correctly

This connects directly to entity structure, since how your business is organized affects where and how it is taxed across state lines. See our pieces on S-corp reasonable compensation and tax planning for high-income earners for how the structure and the state question fit together.

Income crossing DC, Maryland, or Virginia lines? Schedule a discovery call at intake.simonsgroup.net for a focused review before filing season.

Frequently asked questions

Do DC, Maryland, and Virginia have tax reciprocity?

Yes. Residents who earn wages in another of the three pay state income tax only to their home state. The agreements apply to wage and salary income only.

Does reciprocity cover business or rental income?

No. Business income, self-employment income, K-1 income, rental income, and capital gains are not covered. They follow ordinary sourcing rules: the state where the income is earned can tax it, and you claim a credit on your resident return.

Can DC tax my business if my wages are exempt?

It can. The DC Unincorporated Business Franchise Tax applies at the entity level to qualifying unincorporated businesses operating in DC, even when the owner’s wages are exempt under reciprocity. Thresholds and rates apply, so confirm whether your business is subject to it.

Which state return do I file if I have a rental in another state?

Generally a nonresident return in the state where the property sits, reporting that rental income, plus your resident return claiming a credit for the tax paid to the other state. Local county taxes, as in Maryland, may apply on the resident side.