1099 Contractor in Mississippi with a District of Columbia Client: Where Do You File?
Answer
Mississippi taxes all of it; District of Columbia taxes only what you earn on its soil. Nothing is withheld from a 1099, so you pay Mississippi quarterly. A District of Columbia client alone creates no District of Columbia filing obligation — performing services inside District of Columbia does, and Mississippi then credits that tax.
Last verified
The client's location is the wrong thing to track. What matters is where you were sitting when you did the work — which is why a contractor's exposure to District of Columbia is measured in days on the ground rather than in invoices sent.
Nonresidents have no District filing obligation on wages, whatever the amount or the number of days worked. Form D-40B exists only to recover District tax that an employer withheld in error.
What you file
- 1Quarterly estimated payments · Mississippi
Make quarterly estimated payments to Mississippi Department of Revenue on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · District of ColumbiaForm D-40B (Nonresident Request for Refund)
File a District of Columbia nonresident return only if you performed services inside District of Columbia. Nonresidents have no District filing obligation on wages, whatever the amount or the number of days worked. Form D-40B exists only to recover District tax that an employer withheld in error.
- 3Resident return · MississippiForm 80-160
File the Mississippi resident return last and claim the credit for any tax paid to District of Columbia.
The two states, side by side
| Mississippi | District of Columbia | |
|---|---|---|
| Taxes wages | Yes — flat | Yes — graduated |
| Reciprocity partners | None | 2 (Form D-4A) |
| Convenience rule | No | No |
| Nonresident return | Form 80-205 | None — nonresidents exempt |
| Credit for other-state tax | Form 80-160 | Schedule U (Form D-40) |
| Nonresident safe harbour | None published | Not applicable |
| Local income tax | No | No |
| Revenue department | Mississippi Department of Revenue | District of Columbia Office of Tax and Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in District of Columbia and working in Mississippi gives:Home state, plus the client state if you work there.
Same two states, different situation
The withholding answer turns on how you are paid and where the work happens, not only on which two states are involved.
- W-2 commuter: Mississippi → District of ColumbiaNonresidents are exempt by statute
- Remote worker: Mississippi → District of ColumbiaHome state only
- Moved mid-year: Mississippi → District of ColumbiaTwo part-year returns
Other Mississippi pairs
Questions people actually ask
I live in Mississippi and my client is in District of Columbia. Do I have to file a District of Columbia tax return?
Mississippi taxes all of it; District of Columbia taxes only what you earn on its soil. Nothing is withheld from a 1099, so you pay Mississippi quarterly. A District of Columbia client alone creates no District of Columbia filing obligation — performing services inside District of Columbia does, and Mississippi then credits that tax.
Do reciprocity agreements help a 1099 contractor?
No. Every state reciprocity agreement in the country is an arrangement about wage withholding between two revenue departments, and a 1099 has no withholding to switch off. Whether Mississippi and District of Columbia hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Mississippi and District of Columbia rules on this page were last checked against Mississippi Department of Revenue and District of Columbia Office of Tax and Revenue on 2026-08-07. We re-check the full grid every December after state legislative sessions close, and re-check the convenience-of-the-employer states quarterly because that is where the rules move fastest.
Sources
Every fact above comes from the revenue department that publishes the rule. We do not cite secondary summaries, and we do not restate a figure we could not find at source.
- Mississippi Department of Revenue — individual income taxaccessed 2026-08-07
- District of Columbia Office of Tax and Revenue — individual income taxaccessed 2026-08-07