Federal law overview
IRS notices are time-sensitive. A CP2000 (underreporter inquiry) gives you 60 days to respond. A CP14 (balance due) triggers interest accrual immediately. A CP3219A (statutory notice of deficiency) gives you 90 days to petition the Tax Court. Missing deadlines can foreclose your right to contest the IRS's position without going to court.
Generic AI prompt template
I received IRS Notice [NOTICE TYPE, e.g. CP2000] dated [DATE] for tax year [YEAR]. The notice claims I underreported [INCOME TYPE] of $[AMOUNT] from [SOURCE]. I [agree/disagree] because [REASON]. Draft a formal response letter to the IRS that: (1) identifies me by name [NAME], SSN (last 4 digits: XXXX-[LAST4]), and tax year, (2) states my position clearly, (3) includes the following supporting documentation I am enclosing: [LIST DOCUMENTS], (4) requests abatement of any penalties under IRC § 6651 or § 6662 on the basis of [reasonable cause/first-time abatement], and (5) is formatted correctly for IRS correspondence. The IRS response address from the notice is [ADDRESS].
State-specific guides — IRS Notice Response
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Frequently asked questions
What is a CP2000 notice? +
A CP2000 is an IRS underreporter inquiry — it is not a bill. The IRS is proposing changes to your return based on income reported by third parties (employers, banks, platforms). You can agree, partially agree, or disagree within 60 days.
What happens if I miss the response deadline? +
For a CP2000, if you do not respond, the IRS will send a CP3219A (Notice of Deficiency). You then have 90 days to petition the U.S. Tax Court. If you miss that deadline, the IRS will assess the tax and you must pay before disputing it in court.
Can I request penalty abatement? +
Yes. The IRS's First Time Abate (FTA) program waives failure-to-file, failure-to-pay, and failure-to-deposit penalties for taxpayers with a clean compliance history. See IRS.gov/penalties for eligibility.
Should I call the IRS instead of writing? +
Always respond in writing to a notice. Written responses create a paper trail. Phone calls do not — and IRS wait times are often long. If you call, follow up in writing and note the date, time, and agent ID.