A preparer files 47 returns from a home office, never applies for an Electronic Filing Identification Number, and paper-files every one. That single omission breaks the e-file mandate, and the exam tests it directly.
Electronic returns reach the IRS only through firms it has screened and approved. The credential that identifies an approved firm is the Electronic Filing Identification Number (EFIN), a six-digit number assigned to a firm at a specific physical location.
The application process to be an e-file provider runs through the IRS e-services portal, an online set of tools for tax professionals.
You create an e-services account first, then complete the e-file application online. The e-file application process uses no paper form.
- Register for e-services. You verify your identity through the IRS credential-service provider (currently ID.me), which includes a photo identification check.
- Complete the e-file application. It asks for the firm's name, its business structure, its physical address, and its Electronic Filing Identification Number contact person.
- List every Principal and every Responsible Official. Principals are the owners and officers: a sole proprietor, a partner with a 5 percent or more interest, or a corporate officer.
Common mistakes
- Treating the EFIN as portable. Candidates assume a preparer can carry an EFIN from one firm to the next, the way a PTIN follows the individual. It can't. The EFIN belongs to the firm at a physical location and is never sold or transferred, so a new firm applies for its own.
- Mailing Form 8879 to the IRS. The e-file authorization stays in the ERO's file for three years from the later of the due date or the IRS received date. Only Form 8453 is mailed, and only within three business days of acceptance.
- Filing Form 8948 separately or in advance. Form 8948 attaches to the paper return the client mails. The request made in advance is Form 8944, the hardship waiver application. Answer choices routinely swap the two.
Bottom line
- EFIN: six digits, belongs to the firm at one physical location, obtained through e-services after suitability screening, never sold, transferred, or shared; PTIN identifies the individual preparer.
- E-file mandate: a preparer reasonably expecting to file more than 10 covered individual, estate, and trust returns per calendar year, counted firm-wide; Form 8948 attaches to any paper return, Form 8944 requests the hardship waiver in advance.
- Advertising standards: no IRS logo, seal, or implied endorsement; retain advertising copies and recipient lists until the end of the calendar year after the last use.
- ERO: the provider that originates the submission; verifies identity, holds all Forms W-2 and 1099-R first, furnishes the return copy, obtains the signature before transmitting, and never charges a refund-percentage fee.
Exam shortcut
Sort every number by what it counts. Sixes: EFIN digits and IP PIN digits. Fives: the taxpayer's Self-Select PIN and the ERO's PIN, plus the perfection period (a corrected e-filed return accepted by the fifth calendar day after the due date, or 5 calendar days to retransmit a rejected Form 4868). Thirties: days to update the application, days for each appeal stage.
The full lesson (about 7,272 words, 48 min read) adds 2 worked examples, all 7 common mistakes, a self-check, free in the app.
Learning objectives
- 3
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