The entity validation error decoder

How the review actually works (so the waiting makes sense)

When SAM.gov can't match your entity automatically, you upload documents and a case is created. The FSD's own article (KB0058183) describes the machinery: you get a confirmation email from FSDSupport@gsa.gov with an incident number (format INC-GSAFSD…), documents are reviewed in one to three business days, and — the rules people trip on:

• Reply or update your incident within five business days of any request, or your case will be closed.
• If more documents are requested, do not attach them to the FSD.gov incident — Your documents must be attached to your entity validation case … in SAM.gov.
• If your case gets closed, you cannot reopen it — you restart and open a new case in SAM.gov.
• Opening multiple tickets does not speed anything up; GSA's bulletin says it actually slows down the overall process.

Error: “SAM can't find my entity” / validation stuck in review

Symptom: your business isn't in the legal-entities list, you submitted documents, and the registration sits in validation.

What to do: confirm you received the FSDSupport@gsa.gov confirmation (if not, your submission may not have gone through); watch the email of the person who opened the ticket, including spam; respond within the five-day window; and keep every follow-up inside the SAM.gov validation case, not in chat or new tickets.

Error: legal name or address doesn't match your documents

Symptom: documents rejected because the name/address on them doesn't match what you typed into the Entity Information screen.

The rule (KB0059705): Your documents must show your entity information exactly as you entered it. The KB's own example: entering "ACME Company" while your license says "ACME, Inc." fails. At least one document must carry both your full correct legal business name and your current physical address, on the same document. An older document can prove start year or state of incorporation, but then a second, current document must make the name-plus-address linkage.

P.O. boxes and mail-store addresses fail every time. The KB is blunt: P.O. boxes and mail service addresses (e.g. UPS store locations) are not considered physical address locations by the federal government. A home address is acceptable; if you use a virtual office, use the address where you actually keep your records.

Error: TIN mismatch with IRS records

Symptom: after submission, your registration fails TIN validation and the Government Business POC gets an email.

Cause: the IRS matches your TIN and taxpayer name against its files — including the IRS "name control" — for the most current tax year reported. Any deviation from the name exactly as it appears on your most recent IRS document fails the match. "LLC" vs "L.L.C.", a missing comma, an old business name after a change: all fatal.

Fix: enter the taxpayer name and TIN exactly as on your IRS record (your EIN assignment letter, CP-575, is the reference) and resubmit; the re-check takes 2–5 business days.

The timing trap the KB warns about: if your TIN or taxpayer name is NEW or recently changed, the IRS needs about 5 weeks to fully process it into its master file — You should not attempt to register or update in SAM.gov with new or updated TIN information until at least 5 weeks from the date you receive the letter from the IRS have passed.

Error: incorporation documents rejected — what's actually accepted

GSA publishes an exact list (Entity Validation Documentation Requirements, attached to KB0055230). The most useful accepted documents for proving name and address:

• Articles of Incorporation / Organization / Formation — only if stamped as filed with the state authority (an unstamped copy you typed is rejection reason #5)
• Secretary of State Certificate of Filing, or a screenshot/PDF of your current state business-registry profile showing the registry URL
• The IRS letter that assigned your EIN
• Bank statements (redact balances) and utility bills — water, gas, or electric only; phone and internet bills are not on the list
• For sole proprietors: unexpired driver's license or passport with the exact name and address

Age rule: recurring documents (bank statements, utility bills, registry screenshots, certificates of good standing) must be 5 years old or less; foundational documents like stamped articles have no age limit if the information is unchanged.

The FSD's seven rejection reasons, condensed: (1) right document, too old; (2) information doesn't match what you entered; (3) P.O. box address; (4) non-English document without a certified translation — machine translation is prohibited; (5) unprocessed applications, plain typed documents, or screenshots of federal sites (D&B/DUNS screenshots are explicitly listed as unacceptable; state registry screenshots are the one exception); (6) poor or partial scans — all pages, seals visible; (7) an unclear ticket description.

FAQ

How long does SAM.gov entity validation take?

The Federal Service Desk says documents are reviewed in 1-3 business days per submission; total time depends on whether your first documents match. Respond to any request within 5 business days or the case is closed.

Why were my SAM validation documents rejected?

The FSD lists seven reasons; the most common are documents whose name/address don't exactly match what you entered, expired recurring documents (over 5 years old), P.O. box addresses, and unstamped articles of incorporation.

Can I use a P.O. box for SAM.gov registration?

No. FSD guidance is that P.O. boxes and mail-service addresses (like UPS store boxes) are rejected every time as physical addresses.

Why did my TIN fail SAM validation when my EIN is correct?

The IRS matches TIN plus taxpayer name exactly, including the IRS name control. Enter the name precisely as on your IRS records; if the TIN or name is new or changed, wait about 5 weeks for the IRS master file to update.