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Opening a business bank account as a contractor

Plenty of contractors start out running jobs through a personal checking account. Deposits, lumber, gas and groceries, all in one place. It works until tax time, or until you try to figure out which jobs made money.

A business bank account is one of the simplest fixes. Here's what official sources say, in plain words.

Why keep business money separate

The SBA says to open a business bank account as soon as you start accepting or spending money as your business (SBA: Open a business bank account). It lists reasons like:

  • Protection. Keeping business funds separate from personal funds supports limited liability protection.
  • Professionalism. Customers can pay the business instead of you personally.
  • Preparedness. Business accounts often come with credit options.

The IRS, in its small business tax guide, also says you should keep a separate bank account for your business (IRS Publication 334).

For contractors, there's a practical reason too. When only business money moves through the account, your statements become a cleaner record of what the business spent.

What you usually need first

The SBA says you can open a business bank account once you have your federal EIN (SBA). If you don't have one yet, read how to form an LLC and get an EIN.

Documents banks commonly ask for, per the SBA (SBA):

  • Your EIN, or your Social Security number if you're a sole proprietor
  • Your business formation documents
  • Ownership agreements
  • A business license

Some banks ask for more. Call ahead.

What to compare between banks

The SBA suggests shopping around and comparing (SBA):

  • Introductory offers
  • Interest rates on savings, checking and lines of credit
  • Transaction fees
  • Early termination fees
  • Minimum balance fees

If you take cards, the SBA also lists merchant and payment processor fees to compare. And it notes a payment processor still needs to connect to a business checking account to pay you.

We don't recommend specific banks. Compare a few, and ask your CPA if they have a preference for how your books are set up.

Good habits once it's open

Once the account is open, a few habits keep it useful:

  • Run all business income and expenses through it. Mixing in personal spending defeats the purpose.
  • Pay yourself on purpose. Move owner pay to personal accounts as a clear transfer, the way your CPA recommends.
  • Keep the receipts. The bank shows what you paid. The receipt shows what you bought. The IRS says you can use any recordkeeping system that clearly shows your income and expenses, and you must keep records as long as needed to prove items on a return (IRS: Recordkeeping).
  • Tie costs to jobs. A bank statement tells you what the business spent. It doesn't tell you which job it was for.

Where Banay OS fits

Banay OS™ doesn't hold money or replace your bank. It handles the job side. Snap a receipt and it's filed to the job. Crew clock in from their phone and hours show by week, tied to each job. Each job gets its own P&L.

Live, automated P&L for every job.*

Join the early-access waitlist, see plans or visit the Banay OS home page.

FAQ

When should I open a business bank account?

The SBA says as soon as you start accepting or spending money as your business, once you have your EIN (SBA).

Can a sole proprietor open a business account?

The SBA lists a Social Security number as an option for sole proprietors (SBA). Ask your bank what it requires.

Does the IRS say I need a separate account?

IRS Publication 334 says you should keep a separate bank account for your business (IRS Pub. 334).

Does Banay OS replace my bank?

No. Banay OS tracks job hours, receipts and job P&Ls. It doesn't hold money.

*Open jobs show a preliminary P&L that updates each time you open it. It becomes official once the job's final P&L is in.

Sources (fetched Oct 21, 2026):