Got an IRS letter? We'll help you write back.
Plain-English explanations of every IRS notice, the documents to gather, and letters you fill in and send. Plus every deadline, extension, and penalty rule.
Next up
- October 15, 2026Extended individual returns (2025 tax year)
- January 15, 2027Q4 2026 estimated tax payment
- March 15, 2027Partnership and S corporation returns, or Form 7004
- April 15, 2027Individual returns and payment, or Form 4868
Start with what landed on your desk
Decode the letter
22 families of notices, explained. What it means, the deadline, what to gather, and what to send.
Not ready by AprilFile an extension
Six more months to file. Zero more days to pay. How to do it right.
Already lateWhat it costs, and how to ask for relief
The penalty math, and the one-time waiver most people never claim.
Letters that run in your browser
All toolsFirst-time penalty abatement request letter
If you have filed and paid on time for the past three years, the IRS will usually remove a failure-to-file or ...
Reasonable cause statement
When first-time abatement does not apply, you can ask the IRS to remove a penalty because circumstances beyond...
CP14 response letter
A short letter that responds to a balance due notice: what you are paying, what you dispute, and what you are ...
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Who writes this
All writersEvery page carries a named writer and the date it was last checked. Every date and rate links to the IRS or state source it came from. How we work.