1099 Contractor in California with a North Carolina Client: Where Do You File?
Answer
Pay California by instalments, and watch your North Carolina days. Reciprocity agreements do not help here: every one of them covers wage withholding, and a 1099 has no withholding to switch off. California taxes the full profit, North Carolina taxes the on-site share, and the California credit reconciles them.
Last verified
Reciprocity agreements are the first thing contractors ask about and the first thing that does not apply to them. Every agreement in the country is a wage-withholding arrangement, and a 1099 has no withholding to switch off.
North Carolina publishes no de minimis day count or dollar floor for nonresidents. Any North Carolina-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 North Carolina Department of Revenue nonresident instructions before filing.
What you file
- 1Quarterly estimated payments · California
Make quarterly estimated payments to California Franchise Tax Board on your full self-employment income — nothing is withheld from a 1099.
- 2Nonresident return · North CarolinaForm D-400 with Schedule PN
File a North Carolina nonresident return only if you performed services inside North Carolina. North Carolina publishes no de minimis day count or dollar floor for nonresidents. Any North Carolina-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 North Carolina Department of Revenue nonresident instructions before filing.
- 3Resident return · CaliforniaSchedule S
File the California resident return last and claim the credit for any tax paid to North Carolina.
The two states, side by side
| California | North Carolina | |
|---|---|---|
| Taxes wages | Yes — graduated | Yes — flat |
| Reciprocity partners | None | None |
| Convenience rule | No | No |
| Nonresident return | Form 540NR | Form D-400 with Schedule PN |
| Credit for other-state tax | Schedule S | Form D-400TC |
| Nonresident safe harbour | None published | None published |
| Local income tax | No | No |
| Revenue department | California Franchise Tax Board | North Carolina Department of Revenue |
| Last verified |
The other direction
Reversing the commute does not always reverse the answer. Living in North Carolina and working in California 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: California → North CarolinaBoth states — credit offsets the double tax
- Remote worker: California → North CarolinaHome state only
- Moved mid-year: California → North CarolinaTwo part-year returns
Other California pairs
Questions people actually ask
I live in California and my client is in North Carolina. Do I have to file a North Carolina tax return?
Pay California by instalments, and watch your North Carolina days. Reciprocity agreements do not help here: every one of them covers wage withholding, and a 1099 has no withholding to switch off. California taxes the full profit, North Carolina taxes the on-site share, and the California credit reconciles them.
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 California and North Carolina hold an agreement makes no difference to a self-employed filer — sourcing rules decide the answer instead.
How current is this?
The California and North Carolina rules on this page were last checked against California Franchise Tax Board and North Carolina Department of 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.
- California Franchise Tax Board — individual income taxaccessed 2026-08-07
- North Carolina Department of Revenue — individual income taxaccessed 2026-08-07