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My State Tax Letter Looks Wrong. What Do I Do in California or New York?
Last reviewed 2026-07-12
A state tax notice proposing extra tax due is usually a proposal, not a final bill. In California, you generally have 60 days to protest a Notice of Proposed Assessment. In New York, you generally have 90 days to appeal a Notice of Deficiency. Both deadlines are set by the date printed on your own notice, so check it carefully.
What happened
A state tax agency sent you a letter proposing more tax, interest, or penalties than you expected. In California, this is called a Notice of Proposed Assessment. In New York, it is often a Notice of Deficiency. Both states treat this as a proposal you can challenge, not a final decision, as long as you act by the date on your notice.
What usually applies
In California, you generally have 60 days to protest a Notice of Proposed Assessment. Protesting does not stop interest. Paying within 15 days of the notice date is the only way to stop interest from growing. In New York, you generally have 90 days to appeal a Notice of Deficiency. You can use a conciliation conference or the Division of Tax Appeals. In both states, just calling or asking questions does not pause your deadline. Only a formal, written filing done on time protects your rights.
“This notice is not a bill. Your balance due will become a bill if you take no action by the protest by date.”
“You have 60 days to protest.”
“Filing a protest will not stop the accrual of interest on the NPA. To stop the accrual of interest, pay your NPA balance in full within 15 days of the notice date.”
“Generally, you must file your appeal within 90 days of the date the notice was issued. Refer to the notice you received for the applicable time limit.”
“If you are disagreeing with a notice that has protest rights, submitting a request for review or contacting us does not extend your time to file a protest.”
What to do
- 1
Find the deadline printed on your own notice
The exact protest or appeal date is on your letter, since the timelines differ by state and notice type.
- 2
Decide if you agree or want to protest
If you disagree, you may have 60 days in California, or 90 days in New York, based on your notice.
- 3
File your protest or appeal in writing
A written, timely filing is what protects your rights. A phone call or a simple question does not.
- 4
Pay early in California if you want to stop interest
Protesting alone does not stop interest from growing. Paying within 15 days limits how much builds while you wait.
State tax rules can be confusing, and the two states use different forms and deadlines. Free legal aid clinics and low income taxpayer clinics help with state tax protests and appeals. If your deadline is close, contact legal aid or your local 211 line right away.
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Sources
- California Franchise Tax BoardRetrieved 2026-07-11
- New York State Department of Taxation and FinanceRetrieved 2026-07-11
- New York State Department of Taxation and Finance, Office of the Taxpayer Rights AdvocateRetrieved 2026-07-11
Last reviewed 2026-07-12