Do I need an EIN to get business funding?

Often not by law. Practically, yes: the file a funding partner reads is built on a business bank account in the business's name, and the bank asks for an EIN to open it. The number is free, the IRS issues it online the same sitting, and the account you open with it that afternoon is what starts the clock on a file anyone can read.

Do you legally need one?

There are two questions hiding in that one.

The legal question has a short answer. An EIN (Employer Identification Number) is the nine-digit number the IRS uses to identify a business the way a Social Security number identifies a person. A partnership, a corporation or an LLC with more than one member must have one. A sole proprietor or a single-member LLC needs its own only in some cases: employees, or employment or excise taxes to pay. For income tax, a single-member LLC can report on the owner's Social Security number or an EIN (the IRS on single-member LLCs, 2026-10-05). The IRS's own EIN page lists every case: Who needs an EIN, 2026-10-05.

The practical question is the one that matters if you are reading this because a funding form asked for the number. Whoever reads your file has to match three things: a legal business name, an EIN, and a bank account in that name. Without the number, the other two are hard to get, and the file stops before it starts.

Why funding stalls without one

This is my read of how intake works, not a rule any partner has published, and I am not a lender. It is the pattern I build requests to fit.

A funding partner's file opens with a legal business name, an EIN and a business bank account in that name. The three have to agree with each other before anyone looks at a deposit. A file that arrives as a first name, a Social Security number and a personal checking statement does not get declined at underwriting. It never reaches underwriting. There is nothing in it for an underwriter to read.

What gets read is deposits. For a merchant cash advance, which is a purchase of your future receivables and not a loan, the question is whether the sales exist, and the evidence is the bank statement: how many deposits a month, how steady they are, how many days the account went negative. A business credit score is beside the point at this stage. The sites that answer this question with "build your business credit first" are describing a slower road that ends somewhere else.

Funders say as much in their own material. EXP Capital Solutions writes that "three months covers most working capital and advance files, while six months is standard for a line of credit or term loan" (expcapitalsolutions.com, retrieved 2026-09-24). Crestmont Capital says lenders "often look for a minimum of 5-10 deposits per month" rather than one large lump (crestmontcapital.com, retrieved 2026-09-24). Those are their words about their own reading. No partner has told me its criteria, and I cannot promise what any partner will ask of you. The shape is the point: months of a statement, in the business's name, with a rhythm to it.

Which leads to the sentence this whole page exists for. Eight months of income landing in your personal checking account is not eight months of history a partner can read. The history starts the day the business account opens. Day one is that day, not the day you started working.

Sole proprietor or single-member LLC: do you have to?

By the IRS's rule, no, unless one of its cases applies to you: employees, or employment or excise taxes to pay. You can file taxes on your Social Security number for as long as you like.

Banks are the wrinkle. Chase's own checklist asks for an EIN for most business structures, and says an owner who has not filed for one may still be able to open the account on a Social Security number (chase.com, retrieved 2026-09-24). NerdWallet's survey of the same question says requirements "vary among financial institutions" (nerdwallet.com, retrieved 2026-09-24). Some banks will open a sole proprietor's account on an SSN. Some will not.

My advice is to get the number anyway. It costs nothing and takes one sitting. It removes the bank's objection before you walk in. And it keeps your Social Security number off the paperwork you hand to customers who ask for a W-9.

How to get one: free, online, one sitting

1. If you are forming an LLC or a corporation, form it first. The EIN should carry the exact legal name the bank will match against your formation documents. Staying a sole proprietor is fine: you apply under your own name, with the trade name as the DBA.
2. Have four things to hand. The legal name and address of the business. The entity type. The responsible party's Social Security number or ITIN, which the IRS requires to use the online application. The reason you are applying, which for you is starting a business or banking.
3. Apply on the IRS website, not through anyone else. The online EIN assistant is free, runs during the hours listed on that page, and issues the number immediately when the application is approved. Fax takes about a week and mail four to five weeks, by the IRS's own reckoning. The IRS allows one EIN per responsible party per day.
4. Save the confirmation letter before you close the browser. The session ends with the IRS's confirmation (form CP 575) as a PDF. Download it. Banks commonly ask to see the letter itself, not just the number; the paper copy arrives by post weeks later; and if you lose it, the IRS sends a different letter (a 147C) rather than another copy.
5. Do not pay for it. The FTC has warned about websites that charge "up to $300 per EIN" for this free service, dressed up with IRS-style seals (ftc.gov, retrieved 2026-09-24). If a page wants a card number, you are on the wrong page.

What to do the same day

The number on its own does nothing. The account is the point.

1. Open the business bank account. Bring photo ID, the EIN (or your SSN, at a bank that allows it for a sole proprietor), your formation documents, and the DBA certificate if you trade under a name other than the legal one. Chase lists those four; most banks ask for the same things.
2. Point your card processor and payment apps at it. Square, the card terminal, the invoicing app, whatever your customers pay through. Payouts should land in the business account from tomorrow.
3. Move the business's money into it and pay the business's bills from it. Fuel, parts, the phone, the software subscription. A statement that mixes groceries with a parts run is a statement someone has to untangle, and nobody untangles it for free.
4. Keep a one-line note of what each large deposit was. A customer, a job, a refund. Three months from now it explains the odd week in ten seconds instead of a phone call.

That is day one. Everything a partner will eventually read starts accumulating from here.

If you already have one

Add it on the form. A file whose business name, EIN and bank account already agree moves faster, because nobody has to go back and ask. It is not an application, it does not get you anything on its own, and I do not run credit on it.

When to come back

If the business account already has a few months of deposits behind it, the form takes about two minutes, accepts an EIN, and does not require one. If it does not, the useful thing to do today is the list above, not the form. Get the number, open the account, and come back when the statements exist. I would rather read a request in March that says something than one today that says nothing.