DC’s Form D-4, the Employee Withholding Allowance Certificate, is the District’s own version of a W-4, and it’s the form your employer uses to figure out how much DC income tax to pull from each paycheck. It is separate from the federal W-4, and filing one does not substitute for the other. If you live in DC and owe DC income tax, you fill out a D-4 at the start of your job and update it whenever your situation changes.1Government of the District of Columbia. D-4 DC Withholding Allowance Certificate You can pick up a blank copy from your payroll office or download the current version from the DC Office of Tax and Revenue.2Office of Tax and Revenue. Withholding Tax Forms
Who Files a D-4 and Who Doesn’t
Every new DC-resident employee who owes DC income tax completes a D-4 and gives it to their employer. The form asks for your name, home address, and taxpayer identification number (SSN, ITIN, or other TIN).
If you don’t live in DC, you file a different form. Non-residents who work in the District use Form D-4A, Certificate of Nonresidence, which tells your employer not to withhold DC income tax. You qualify as a non-resident if your permanent home was outside DC for the entire tax year and you didn’t spend 183 days or more in DC that year.3Office of Tax and Revenue. Form D-4A Certificate of Nonresidence in the District of Columbia If you later move to DC, file a regular D-4 promptly so withholding begins.
DC has reciprocal tax agreements with Maryland and Virginia. If you live in either state and commute to DC for work, you don’t owe DC income tax on your wages; file a D-4A to stop DC withholding and handle income tax through your home state.
Choosing Your Filing Status
The D-4 asks you to pick one filing status, and that choice directly affects how much tax comes out of each check. Each status carries a different standard deduction:4Office of Tax and Revenue, District of Columbia. 2015 D-4 DC Withholding Allowance Certificate
- Single: $15,000
- Married or domestic partners filing jointly: $30,000
- Married filing separately: $15,000
- Head of household: $22,500
- Married or domestic partners filing separately on the same return: $30,000
These are the 2025 amounts, adjusted for cost of living each year. Pick the status that matches how you’ll actually file your DC return. If you’re not sure, single with no dependents is the safest default because it produces the most withholding.
Counting Your Allowances
Each allowance you claim lowers the income your employer treats as taxable, which shrinks the withholding per paycheck. The worksheet on the D-4 walks you through it, but the categories are straightforward:1Government of the District of Columbia. D-4 DC Withholding Allowance Certificate
- Yourself: 1
- Each qualifying dependent: 1
- Age 65 or over: 1
- Blind: 1
- Spouse or domestic partner age 65 or over (if filing jointly or separately on the same return): 1
- Spouse or domestic partner blind (same filing conditions): 1
Add them up and enter the total. A single person with no dependents claims 1. A married couple filing jointly with two dependents and one spouse over 65 claims 4. More allowances mean a bigger paycheck now and a smaller refund at tax time. Too many, and you’ll owe when you file.
Adding Extra Withholding
Even with zero allowances, some situations leave you under-withheld: freelance income on the side, investment gains, or just a preference for a larger refund. Line 3 of the D-4 lets you enter a flat dollar amount to be pulled from every paycheck on top of the calculated withholding.4Office of Tax and Revenue, District of Columbia. 2015 D-4 DC Withholding Allowance Certificate Your employer needs to agree to the arrangement, and there’s no cap on the amount.
Claiming Exemption from DC Withholding
You can stop DC withholding entirely by writing “EXEMPT” on the designated line, but only if all three of these are true:
- You owed no DC income tax last year and got a full refund of what was withheld.
- You expect to owe no DC income tax this year and expect a full refund again.
- You also qualify for exempt status on your federal Form W-4.5Government of the District of Columbia. D-4 DC Withholding Allowance Certificate
The federal requirement is the one people overlook. In practice, this mostly applies to very low earners and full-time students with minimal wages. Exempt status expires at the end of each calendar year, so if you want it to continue you must file a fresh D-4 with your employer by February 15. Miss the date, and your employer starts withholding at the default rate.
Military Spouses
Under the Military Spouses Residency Relief Act, if you’re the spouse of an active-duty service member and you’re in DC only because your spouse was stationed here, your wages can be exempt from DC income tax. Your legal residence for tax purposes has to be in a state other than DC, and you must have moved to DC on military orders. Claim the exemption by filing a D-4.6Office of Tax and Revenue. Taxation of Compensation of Military Members and Spouses If you were already a DC resident before your spouse was transferred, it doesn’t apply.
Submitting the Form and Updating It
Once the form is filled out, detach the top portion, sign it, and hand it to your employer’s payroll office. Keep the bottom worksheet for your records.1Government of the District of Columbia. D-4 DC Withholding Allowance Certificate The new withholding takes effect with the first payroll period ending on or after your employer receives it.
You can update your D-4 anytime a change entitles you to more allowances. When something reduces your allowances, though, timing matters. A divorce, a dependent who no longer qualifies, or a similar change gives you 10 days to file a new D-4 reflecting the lower number. DC treats that 10-day window as a compliance deadline.
Your employer keeps every D-4 on file. If you claim 10 or more allowances, or claim exempt status, your employer is instructed to send a copy to OTR’s Compliance Administration for review. The same happens if the employer suspects the form contains false information.7Coppin State University. Form D-4 Employee Withholding Allowance Certificate 2024
What Under-Withholding Costs You
If your withholding falls short and you owe DC income tax when you file, OTR charges 10% interest compounded daily on the underpayment.8Office of Tax and Revenue. Underpayment of Estimated Tax Interest Daily compounding pushes the balance up faster than most people expect, especially if the return is filed late. Inflating your allowances or claiming exempt without meeting the rules is the fastest way to land there.
The interest applies to the gap between what you should have paid across the year and what was actually withheld or sent in as estimated payments. If you have income outside your W-2 wages, such as rental income or contract work, using the extra-withholding line on the D-4 is usually simpler than filing separate quarterly estimated payments with OTR.