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The E-Rate invoice deadline — and the 15-day window that can save the money

Last reviewed August 16, 2026 · Written by the team behind the E-Rate Wave tracker · Not legal advice — verify current rules with USAC.

Every funded FRN has a last date to invoice. Miss it, and the committed money is forfeit — there is no appeal path for a plain missed invoice deadline. This is the single most expensive clock in the E-Rate program.

The deadline rule

Invoices (BEAR Form 472 from applicants, or SPI Form 474 from service providers) are due 120 days after the last day to receive service, or 120 days after the Form 486 Notification Letter date — whichever is later. USAC publishes each FRN’s last date to invoice in its open data, and that published date — not your own arithmetic — is the one that counts: it already reflects any extension USAC has granted.

The 2026 change: one extension, 15 days to claim it

The practical consequence: discovering a missed deadline quickly is now worth real money. A miss caught on day 3 is recoverable; the same miss caught on day 20 is usually a write-off.

Two more things that block payment

• SAM.gov registration: as of August 10, 2026, invoice payments require the invoicing entity to have an active SAM.gov registration (UEI). A lapsed registration blocks the disbursement even when the invoice is on time.
• Recurring vs. non-recurring services have different last-day-of-service dates, so their invoice deadlines differ — another reason to track per FRN, not per client.