You cannot convert a personal account to a business account, but you can open a business account and move your money over
Banks do not allow you to change a personal checking account into a business account after it is opened. The two account types are separate products with different legal structures, tax reporting, and liability protections. If you have been using a personal account for business and need a business account, you will need to open a new one and transfer your balance yourself.
The reason banks keep them separate is regulatory: a business account reports income differently to the IRS, carries different liability rules, and requires different documentation at signup. Changing the account type retroactively would create gaps in that paper trail. Opening a fresh business account takes a few days and costs nothing, so banks treat it as the standard path.
Key Takeaways
- Personal and business accounts are separate products; you cannot convert one into the other after opening.
- You will need an Employer Identification Number (EIN) or your Social Security Number to open a business account, depending on your business structure.
- Most banks can open a business account within one to three business days if you have the required documents ready.
- You can transfer money from your personal account to your new business account yourself; the bank will not do it automatically.
- Using a personal account for business expenses creates tax and liability problems that a business account solves going forward.
What documents you need to open a business account
The documents required depend on your business structure. If you are a sole proprietor (self-employed with no formal business entity), you will need your Social Security Number, a government-issued ID, and proof of address. Some banks also ask for a business license or a letter from your state showing your business name registration, though this is not always required for sole proprietors.
If you have formed an LLC, S-Corp, or C-Corp, you will need your Employer Identification Number (EIN), which you get from the IRS. You will also need the business formation documents (Articles of Organization for an LLC, for example), a government ID, and proof of address. A few banks ask for a business license as well. Call your bank before you go in or explore online; they will tell you exactly what they need.
If you have not yet obtained an EIN, you can explore for one free on the IRS website (irs.gov) or by phone. The online process takes about 15 minutes and you receive your number when ready. By mail it takes about four weeks.
How to move money from your personal account to your business account
Once your business account is open, you transfer the money yourself using one of three methods: an internal transfer (if both accounts are at the same bank), an ACH transfer (if they are at different banks), or a check written to yourself.
An internal transfer is fastest—usually when ready or within one business day. Log into your personal account online or call the bank and request a transfer to your new business account. You will need the business account number.
An ACH transfer works across banks. Go to your personal account, select "Send Money," and enter your business account details. ACH transfers typically take one to three business days. There is no fee for this method at most banks.
A check written to yourself is the slowest method but works everywhere. Write a check from your personal account payable to your business name, deposit it into the business account, and wait for it to clear—usually three to five business days.
Why you should not keep using your personal account for business
Using a personal account for business expenses creates three problems: tax confusion, liability exposure, and proof issues if you are audited.
Tax confusion happens because the IRS expects business income and expenses to flow through a business account or be clearly separated in your personal records. Mixing personal and business transactions in one account makes it harder to calculate what you actually owe. An accountant can sort it out, but it costs more time and money.
Liability exposure means that if your business is sued, a plaintiff's lawyer can argue that you did not treat the business as separate from yourself—which can put your personal savings at risk. A business account is one piece of evidence that you kept things separate.
Audit proof matters because the IRS will ask to see your account statements. If everything is mixed together, you have to manually categorize every transaction. A business account shows the IRS that you took the business seriously from the start.
Timeline for opening a business account
Most banks can open a business account within one to three business days if you explore online or in person with all documents ready. Some banks offer same-day approval if you walk in during business hours, though the account may not be fully active until the next day.
The slowest part is usually getting your EIN if you do not have one yet. If you explore online, you have it in 15 minutes. If you explore by mail, allow four weeks. Once you have the EIN, the account itself opens quickly.
If you are in a hurry, explore for your EIN online first, then walk into your bank with all documents. This path usually takes one business day total.
Which banks accept business accounts and what they cost
All major banks (Chase, Bank of America, Wells Fargo, Citibank) and most regional banks and credit unions offer business checking accounts. Online banks like Mercury, Brex, and Novo also offer them, often with lower fees and faster signup.
Monthly fees range from zero to $25 depending on the bank and account type. Some banks waive the fee if you maintain a minimum balance (often $500 to $2,500) or set up direct deposit. Online banks tend to have lower or no monthly fees. Compare the fee structure before you choose; over a year, the difference adds up.
Most business accounts come with a debit card, online banking, and the ability to add authorized users. Some charge extra for these features; others include them. Ask about what is included before you open.
What happens to your old personal account
You can keep your personal account open after you open the business account, or you can close it. There is no requirement to close it. Many people keep both: the personal account for personal expenses and the business account for business.
If you decide to close the personal account, make sure all automatic payments and direct deposits have been moved or cancelled first. Call the bank to close it, or do it online if the option is available. Closing takes one to three business days. The bank will send you a final statement showing any remaining balance.
Frequently Asked Questions
Can I use my personal account while I wait for the business account to open?
Yes. Keep using your personal account until the business account is ready. Once the business account is open and funded, you can start directing new business income and expenses there. You do not have to switch everything at once.
Do I need an LLC or corporation to open a business account?
No. Sole proprietors can open a business account using just their Social Security Number and a business name. You do not need to form an LLC or corporation first, though some banks prefer it because it simplifies their paperwork.
What if I do not have an EIN yet?
explore for one online at irs.gov before you go to the bank. You will have it in 15 minutes. If you cannot wait, some banks will open an account using your Social Security Number temporarily and let you add the EIN later, but this varies by bank—call ahead.
Can I transfer money from my personal account to my business account without the bank's help?
Yes. You can write a check to yourself, use an ACH transfer, or request an internal transfer. The bank does not move the money for you; you initiate the transfer yourself through online banking or by calling.
Will opening a business account affect my personal credit?
No. Business accounts do not report to your personal credit report. The bank may do a soft credit check or check your banking history, but it will not lower your credit score.