Where can one download a machine‑readable (CSV) version of Publication 590‑B Appendix B life expectancy tables?

1. Where to download the official tables (IRS PDFs only)

The official source for the life expectancy tables is IRS Publication 590‑B itself, available on the IRS site as both the web page for the publication and as the full publication PDF; Appendix B contains the three life expectancy tables used for RMD and beneficiary calculations ^{[2] [1] [3]}. The IRS also maintains prior-year or draft versions of Publication 590‑B (for example, a prior PDF and a 2025 draft PDF are archived on the IRS site), and those PDFs likewise include Appendix B with the tables ^{[7] [8]}.

2. Is there an IRS-provided machine‑readable (CSV) file?

Among the sources reviewed, there is no IRS-hosted CSV of Appendix B; the IRS presents the tables inside the Publication 590‑B PDF and related web pages, but the provided IRS items are PDFs and HTML pages rather than a downloadable CSV ^{[1] [2] [3]}. The correct, documented fact is that the IRS publishes the tables in Appendix B of Publication 590‑B, but a native CSV file was not found in the supplied reporting ^{[1] [2]}.

3. Third‑party hosting and standalone PDFs that are easier to extract

Several non‑IRS entities have republished the life expectancy tables as separate PDF pages or web‑formatted tables, which are easier to extract into CSV than pulling from the full IRS PDF; examples in the reporting include a life expectancy PDF hosted by mrannuity (an aggregated “LifeExpectancy Tables” PDF) and joint/single table PDFs published by financial firms such as Morgan Stanley, and an Appendix B Uniform Lifetime table PDF hosted by MMBB ^{[4] [5] [6]}. These third‑party files cite Publication 590‑B as their source ^[5].

4. Practical route to a machine‑readable CSV (convert or scrape)

Given the absence of an IRS CSV in the reviewed sources, the practical options are to download the IRS Publication 590‑B PDF and extract the tables to CSV using a PDF table‑extraction tool or script, or to download one of the standalone PDFs/web tables from third parties and convert those to CSV; the IRS PDF and the third‑party copies are the documented sources for the table contents ^{[1] [4] [5]}. For those seeking reproducibility, prefer the IRS PDF for authenticity, then use a tabular extraction approach (OCR or table‑parsing utilities) to produce a CSV, recognizing that extraction requires validation against the original PDF ^[1].

5. Verification and versioning caveats

Because Publication 590‑B is updated and prior‑year versions exist, it matters which edition’s Appendix B is needed; the reporting shows multiple years and draft versions (for example, a 2021 PDF and a 2025 draft) so users must ensure their CSV matches the specific year’s tables used for the tax year in question ^{[7] [8]}. Third‑party reproductions frequently cite the IRS tables but may not indicate the tax year or any editorial changes, so cross‑checking back to the IRS PDF is required to avoid using an outdated or altered factor ^{[5] [4]}.

6. Bottom line recommendation

The authoritative download is the IRS Publication 590‑B PDF (Appendix B) on irs.gov; because a native IRS CSV is not present in the supplied reporting, the recommended approach is to download the IRS PDF (or an official prior‑year PDF if that year is required) and convert the Appendix B tables to CSV, or to download third‑party standalone PDFs that replicate Appendix B and extract CSV from them while verifying against the IRS document ^{[1] [2] [4]}. If an immediately downloadable CSV is required and avoiding conversion is essential, consider contacting the IRS for guidance or checking major financial firms that host reproducible table files, but note the reporting here does not show an IRS‑published CSV ^{[3] [5]}.