1099 Contractor in Washington with a Ohio Client: Where Do You File?
Answer
Usually nothing is due anywhere. As a Washington resident you file no state return, and Ohio reaches only the part of your self-employment income that comes from work physically done inside Ohio. Keep a record of any days you spend working on Ohio soil.
Last verified
The most common contractor worry — that invoicing an out-of-state client creates a filing obligation there — is usually unfounded. What creates the obligation is physical presence, and Washington residents have no home-state return in any case.
Ohio publishes no de minimis day count or dollar floor for nonresidents. Any Ohio-source wage income above the state's general filing threshold requires a nonresident return, and that threshold is reset each year — check the current figure on the Ohio Department of Taxation nonresident instructions before filing.
What you file
- 1Nonresident return · OhioForm IT 1040 with Schedule IT NRC
File a Ohio nonresident return only for income from services you physically performed in Ohio. Washington does not tax wage or self-employment income.
The two states, side by side
| Washington | Ohio | |
|---|---|---|
| Taxes wages | No | Yes — graduated |
| Reciprocity partners | None | 5 (Form IT 4NR) |
| Convenience rule | No | No |
| Nonresident return | Not applicable | Form IT 1040 with Schedule IT NRC |
| Credit for other-state tax | No income tax | Ohio Schedule of Credits (resident credit) |
| Nonresident safe harbour | Not applicable | None published |
| Local income tax | No | Yes |
| Revenue department | Washington State Department of Revenue | Ohio Department of Taxation |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in Ohio and working in Washington gives:Home state only — estimated payments.
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: Washington → OhioWork state only
- Remote worker: Washington → OhioNo state income tax on your wages
- Moved mid-year: Washington → OhioOne part-year return — the state you moved to
Other Washington pairs
Questions people actually ask
I live in Washington and my client is in Ohio. Do I have to file a Ohio tax return?
Usually nothing is due anywhere. As a Washington resident you file no state return, and Ohio reaches only the part of your self-employment income that comes from work physically done inside Ohio. Keep a record of any days you spend working on Ohio soil.
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 Washington and Ohio hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The Washington and Ohio rules on this page were last checked against Washington State Department of Revenue and Ohio Department of Taxation 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.
- Washington State Department of Revenue — individual income taxaccessed 2026-08-07
- Ohio Department of Taxation — individual income taxaccessed 2026-08-07
- Ohio — Form IT 4NRaccessed 2026-08-07