IRS deadlines don't wait. Neither should you.

Turn your IRS notice into a response packet before the deadline.

Upload your CP2000, CP2501, or CP3219A notice. Our AI analyzes it, drafts an evidence-backed response, and exports a ready-to-send packet — in minutes, not weeks.

Build My Response Packet — FreeI Already Have an Account
Bank-level encryptionAverage response time: 8 minutesNot legal advice — documentation assistant only

Typical CP2000 deadline

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Don't let the clock run out on your response window.

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How It Works

Three steps. Zero guesswork.

From IRS notice to response packet in under 10 minutes. No tax expertise required.

STEP 1

Upload Your Notice

Drop your CP2000, CP2501, or CP3219A PDF. We auto-detect the notice type, extract the deadline, and identify the key issues — even from scanned documents.

STEP 2

AI Drafts Your Response

Ask questions in plain English. Get draft response language with citations back to your uploaded documents. Identify evidence gaps and build a rebuttal matrix.

STEP 3

Export & Send

Export a formatted response packet with your draft letter, evidence checklist, citations, and submission instructions. Ready to print, sign, and mail.

Trusted by Taxpayers

What our users say

“Got a CP2000 for $12,400 in alleged underreported income. ReplyBy30 helped me draft a response with my actual 1099 records in 15 minutes. IRS accepted my explanation.”

Maria R.

Small Business Owner, TX

CP2000

$12,400 disputed

“I had 21 days to respond to a CP2501 and was panicking. The AI identified exactly which documents I was missing and drafted the letter. Worth every penny.”

James T.

Freelance Consultant, CA

CP2501

$8,200 disputed

“The rebuttal matrix feature is incredible. It laid out each IRS claim, my counter-position, and what evidence I needed. Felt like having a tax attorney in my pocket.”

Patricia K.

Retired Teacher, FL

CP3219A

$23,100 disputed

Simple Pricing

One price. No surprises.

Start free. Upgrade when you need unlimited notices and packet exports.

Free

$0

No credit card required

  • 1 workspace
  • 3 notices per month
  • AI chat assistant
  • Notice classification
  • Deadline extraction
  • Basic evidence checklist
Get Started Free
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Pro

$149/month

Cancel anytime

  • Unlimited workspaces
  • Unlimited notices
  • AI chat + response drafting
  • Packet export (PDF + Markdown)
  • Rebuttal matrix builder
  • Deadline reminder emails
  • Evidence gap task tracking
  • Priority support
Start Pro Trial

FAQ

Common questions

We currently support CP2000 (underreporter proposed changes), CP2501 (preliminary underreporter inquiry), and CP3219A (Notice of Deficiency). We auto-detect the notice type when you upload your PDF and tailor the response workflow accordingly.
No. ReplyBy30 is a documentation assistant only. It helps you organize your response, draft language, and track evidence — but it does not provide legal or tax advice. For complex tax situations, we recommend consulting a qualified tax professional.
Our AI analyzes your uploaded notice and supporting documents, then generates draft response language with citations back to your specific files. Every claim in the draft references a source document, so you can verify accuracy before sending.
Yes. We support both digital PDFs and scanned documents. Our OCR pipeline extracts text from scanned images so the AI can analyze them. For best results, ensure scans are clear and legible.
Most users complete the full workflow — upload notice, chat with AI, review draft, export packet — in under 10 minutes. The actual time depends on how many supporting documents you upload and how many questions you ask.
You receive a formatted markdown document containing your draft response letter, evidence checklist, citations, and submission instructions. Print it, review it, sign it, and mail it to the IRS address on your notice via certified mail.
Yes. Cancel anytime from your billing settings. You'll retain access until the end of your current billing period. No long-term contracts or cancellation fees.
Yes. All data is encrypted in transit and at rest. We use bank-level encryption. Your uploaded documents are only used to generate your response — we never sell or share your data with third parties. You can delete your workspace and all associated data at any time.

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