How to Respond to an IRS Notice and When to Get Professional Help in California

When you receive an IRS notice, the instinct is often to set it aside and hope it resolves itself. That approach almost always makes things worse. Understanding what each notice means — and knowing when to bring in a qualified tax professional — can save you significant time, money, and stress.

Not All IRS Notices Are the Same

The IRS sends dozens of different notice types, each identified by a number and letter code. Some are informational; others require a response within a strict deadline. Here are a few of the more common ones California taxpayers encounter:

  • CP2000 — The IRS received income information from third parties (employers, banks, brokers) that does not match what you reported. This is not an audit; it is a proposed change. You have the right to agree or disagree.
  • CP501, CP503, CP504 — These are balance due reminders and escalating collection notices. CP504 is a Notice of Intent to Levy and carries an urgent response deadline.
  • LT11 / Letter 1058 — Final notice of intent to levy. This triggers your right to request a Collection Due Process hearing.
  • Letter 525 / Letter 915 — Notice of audit or examination. These require a formal response.

When You Should Contact a Tax Professional

Not every IRS notice requires professional help. A simple math error notice (CP11 or CP12) may be something you can respond to directly. However, you should bring in a CPA, Enrolled Agent, or tax attorney if:

  • The notice proposes a significant change to your tax liability
  • You receive any notice related to a levy, lien, or seizure
  • You receive a notice of audit or examination
  • The notice involves a year for which records are incomplete or returns were not filed
  • You disagree with the IRS’s proposed changes and want to appeal

What a Professional Can Do With an IRS Notice

A qualified representative can respond to the IRS on your behalf using IRS Form 2848 (Power of Attorney). They can communicate directly with IRS personnel, gather documentation to support your position, and represent you at an appeals conference if needed. Enrolled Agents in particular are trained specifically for this type of work.

Finding Help in California

If you need representation for an IRS notice matter, you can find qualified professionals through the IRS Directory of Federal Tax Return Preparers at irs.treasury.gov/rpo/rpo.jsf. The directory contains only certain federal tax return preparers: those with an active preparer tax identification number (PTIN) who are also an Enrolled Agent, Certified Public Accountant, attorney, Enrolled Retirement Plan Agent, or Enrolled Actuary, or who are Annual Filing Season Program participants. You can also check the California Board of Accountancy at dca.ca.gov/cba to verify a CPA’s active license.

Official sources referenced: IRS.gov, California Board of Accountancy (dca.ca.gov/cba), California Franchise Tax Board (ftb.ca.gov). Not reviewed by a credentialed tax professional.

TaxProsOfCA.com is an independent consumer-information site. We are not tax preparers. We do not prepare, file, review or advise on tax returns, we are not CTEC-registered, and nothing here is tax or legal advice. We publish explanations of how California's tax-preparer credential system works so you can check someone's registration yourself. For advice about your own situation, consult a credentialed professional whose status you have verified.