# TaxNotices.ai > TaxNotices.ai is a primary-source database of plain-English IRS notice translations and response guidance. Every page is fully server-rendered (readable without JavaScript) and cites the exact irs.gov primary source it is based on, with a Last-Verified date. TaxNotices.ai is an independent educational resource. It is NOT the IRS and NOT affiliated with the Internal Revenue Service or any government agency. ## Notice Library - [All IRS notices](https://taxnotices.ai/library/): 25+ IRS notices (CP09, CP10, CP11, CP11A, CP12, CP13, CP14, CP16, CP21B, CP22A, CP22E, CP23, CP32A, CP45, CP49, CP54B, CP59, CP75, CP79, CP79A, CP90, CP297, CP504, LT11, Letter 1058) each at /library/notices/[code], with: a quotable lead answer, the official IRS version, a plain-English "Detangler" translation, urgency rating, deadlines, response options, penalties, action steps, FAQs, and citations to the exact irs.gov source page. - [IRM Part 5 — Collecting Process](https://taxnotices.ai/library/irm-part-5): plain-English guide to the IRS collection manual (liens, levies, installment agreements, offers in compromise). - [IRM Part 20 — Penalty and Interest](https://taxnotices.ai/library/irm-part-20): plain-English guide to IRS penalty and interest rules, including abatement standards. ## Answers - [Answered questions](https://taxnotices.ai/answers/): permanent, citable answer pages minted from generalized (PII-stripped) visitor questions, each following the same structured template: Direct Answer, What It Means, Action Steps, Risks & Deadlines, Next Step. ## Machine access - Sitemap: https://taxnotices.ai/sitemap.xml (ISO 8601 lastmod on every entry) - All content is available in raw HTML; no JavaScript required.