LetterAgent

Mail physical letters by just asking your AI assistant.


Status: LetterAgent is currently in private testing ahead of public launch. Everything on this page describes the service as it works today.

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How do I respond to an IRS notice by mail?

Reply to the address printed on the notice, not the IRS's general address, and include the notice number (like CP2000), the tax year, your name, and Social Security number. Respond by the deadline on the notice, send copies never originals, and keep proof of mailing. Most notices are routine requests, not audits.

This is general information, not tax advice.

Read the notice before you do anything

IRS notices are numbered, and the number tells you what is being asked. A CP14 is a balance-due notice: it says you owe a specific amount. A CP2000 flags income the IRS has on file that did not appear on your return: it is a proposal, not a bill, and you can agree or disagree with it. CP501 and CP502 are reminder notices about unpaid balances. The notice also names a deadline and, in most cases, a specific reply address: often a processing center, not the IRS's general mailing address. Replying to the wrong address is the most common reason responses go missing.

Include in your responseWhy
The notice number and tax yearRoutes your letter to the right case file
Your name and Social Security numberIdentifies the taxpayer; write it on every page
Whether you agree or disagreeState it plainly in the first paragraph
Your explanation and documentsCopies only: corrected figures, receipts, or records supporting your position
A tear-off slip, if enclosedSome notices include a payment voucher or response stub: send it back

What if I agree? What if I do not?

If you agree with the notice, pay by the deadline on the notice to stop penalties and interest from growing: interest accrues daily until the balance is zero. If you disagree, say so clearly, explain why, and attach the documents that support your position. Partial agreement is fine: agree with what is correct and dispute the rest, line by line. Keep your tone factual throughout. The person reading your letter processes hundreds of these; a clear agree/disagree statement with organized documents gets resolved, while a long emotional letter gets set aside.

What should I never do?

Ignore it. Penalties and interest keep accruing whether or not you open the envelope, and silence eventually escalates to enforced collection. Two relief valves people miss: if you have a clean compliance history, you can request first-time penalty abatement, which wipes certain penalties for one bad year; and if you cannot pay in full, the IRS offers installment agreements you can request by mail. If the IRS is not responding or the situation is causing real hardship, the Taxpayer Advocate Service, an independent office inside the IRS, can intervene on your behalf.

Can LetterAgent mail my IRS response?

Yes. Describe the response to your AI assistant, approve the exact quoted price, and it is printed and mailed to the address on the notice. Use the registered option (US Certified Mail) so you have dated proof of when the IRS received it: with response deadlines and penalty clocks running, that receipt is worth keeping with your tax records. Note that the letter will contain your Social Security number, so consider who handles it at each step.

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Ready to mail it? Send your letter with LetterAgent: describe it to your AI assistant, approve the exact quoted price, and it is printed and mailed.


LetterAgent is a working name. Prices include print, postage, and our service fee. US prices in USD, Canadian prices in CAD (Canadian prices exclude applicable sales tax, added at checkout). Currently in private testing.

Need help? Ask your assistant: it can check a job's status any time. If it ever can't handle something: hello@getletteragent.com

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