Start with the LLC’s other reasons for needing an EIN
First check whether this exact LLC already has an EIN. The bank’s request for evidence is not a reason to duplicate a number. If a letter is missing, use the existing-EIN search record and the assignment-versus-confirmation letter guide.
The IRS single-member LLC page says a disregarded LLC can obtain an EIN to open a bank account. Its discussion of an LLC without employees or excise-tax liability must be read alongside the rules for foreign-owned U.S. disregarded entities. No employees does not settle every filing obligation.
For example, the SS-4 table has a separate single-member-entity row covering an EIN needed for Form 8832, employment or excise taxes, state reporting, or Form 5472 for a foreign-owned U.S. disregarded entity. That row says to complete lines 1–18 as applicable. Do not substitute the shorter banking-only list when those are the actual facts.
If the LLC needs the EIN to file Form 5472, the SS-4 instructions give a specific line 10 “Other” description: “Foreign-owned U.S. disregarded entity filing Form 5472.” A simultaneous bank request does not erase that purpose. Resolve an uncertain purpose before signing; line 10 allows only one reason box.
Read the banking-only field list with its conditions
The December 2025 form’s banking-only row lists 1–5b, 7a–b, 8a, 8b–c (if applicable), 9a, 9b (if applicable), 10 and 18. This map groups that list for review. It is not an instruction to omit a field that another applicable row or instruction requires.
| Listed lines | What to check in the file |
|---|---|
| 1–5b | Entity and any applicable trade-name/care-of entries; real mailing address and a different physical address when required. Use the address guide for the field definitions. |
| 7a–b | Responsible party and the identifier entry allowed by the current instructions for those facts. Banking purpose does not change the responsible-party rules. |
| 8a–c, 9a–b | LLC facts, member count, place of organization and entity classification entries as applicable. Follow the disregarded-entity instructions; do not infer tax classification from the bank’s application label. |
| 10 | One reason box and a truthful banking-purpose description if the request really is banking-only. |
| 18 | Whether the applicant entity named on line 1 previously applied for and received an EIN. Keep the owner’s identifiers separate. |
The table does not remove the signature requirements on page 1 or replace the line-by-line instructions. Do not invent employees, wage dates or business activities to make an application resemble another sample. If the facts require a different row, revisit its complete field list.
Keep a private purpose record
Copy these headings into your own secure file. They help explain the decision to a reviewer; they are not an IRS submission or a bank’s onboarding checklist.
- Applicant
- Exact LLC legal name and supporting formation record. Identify the entity that needs the account.
- Existing EIN check
- Documents searched, IRS notice found or still missing, and whether a prior assignment to this entity is verified. Do not fill a gap with an owner’s number.
- Bank request
- The bank’s actual request, its date and which document or number it asks for. Preserve the request separately from any IRS instructions.
- Other purposes
- Known employment, excise, state-reporting or election facts; foreign ownership and transactions relevant to a Form 5472 review. Record unresolved questions explicitly.
- Row and description
- The SS-4 revision, the row reviewed and the facts supporting its use. If banking-only is confirmed, an illustrative description is “To open a deposit account in the LLC’s legal name.” Use it only if accurate; the wording itself does not establish eligibility for the row.
- Review outcome
- Which purpose was supported, which questions remain and the documents behind the conclusion. Keep any later EIN notice with this record; it does not establish bank acceptance.
Three fictional purpose files
1. The bank wants proof of an existing number
Reed Example LLC has an IRS EIN notice in its legal name. The bank asks for EIN documentation.
Record: existing assignment verified; bank document request preserved. Review which evidence the bank will accept. Do not turn a request for proof into a new SS-4 application.
2. The bank request is only one purpose
Elm Example LLC has no employees or sales. Its foreign owner contributed funds. The owner describes the EIN as “just for banking.”
Record: contribution evidence and foreign-ownership facts require a Form 5472 review. No sales does not resolve it. If the reviewer establishes that an EIN is needed for Form 5472, use the applicable disregarded-entity instructions rather than labelling the request banking-only.
3. Banking-only is the supported purpose
Birch Example LLC’s record establishes no prior LLC EIN and contains a bank request. A review of its actual facts supports a banking-only purpose, with no other identified reason requiring a different SS-4 row.
Record: retain that review and the truthful banking description, then use the current row and line instructions together. This hypothetical assumes the purpose review is complete; it does not establish that a particular foreign-owned LLC qualifies or that any bank will open an account.
Official sources and limits
- Form SS-4, December 2025: page 2 banking-only and single-member-entity rows; page 1 fields and signature.
- SS-4 instructions, December 2025: line 10, disregarded entities, addresses and prior EIN.
- Single-member LLC guidance: EIN use for banking and separate employment-tax identification.
- Form 5472 instructions, December 2024: definitions, who must file and Part V.
Sources checked November 3, 2026. This page organizes an EIN purpose file. It does not select a bank, promise approval, determine tax or withholding obligations, recommend an election or submit an application.