How Many Bank Accounts Does a Small Business Need?
Four. A fifth if you collect sales tax.
Not four because more is better. Four because each one answers a question you would otherwise have to work out, and working it out is the job that never gets done.
One account means every question starts with an hour of sorting. Four means you can answer most of them by looking.
The Money Mastery System dashboard showing accounts side by side. Example data.
The short version
Four accounts: operating, tax set-aside, owner pay and buffer. A fifth for sales tax if you collect it.
The set-aside account is the one that makes your balance true.
Open them one at a time, starting with tax.
A sole proprietor is generally not required to have a business account, but one that is only ever business is half your bookkeeping.
The four, and what each is for
Account | What goes in | What comes out | What breaks without it |
|---|---|---|---|
Operating | Everything clients pay you | Everything the business spends | Nothing, this is the one everyone has |
Tax set-aside | A fixed share of every payment, on the day it lands | Tax payments, and nothing else, ever | The balance lies to you all year and April is a shock |
Owner pay | A regular amount you decide in advance | Your own life | You pay yourself whatever is left, which is a different number every month |
Buffer | Whatever is spare, monthly | A quiet month, a broken thing, a late client | One late invoice becomes a personal loan |
Sales tax, if you collect it | The tax portion of every sale | The filing, when due | You spend money that was never yours |
Why the set-aside account does the most work
Every other account on that list is organisation. The set-aside is the one that changes what you can see.
With one account, your balance is your money plus the tax money plus the client deposit you have not earned yet. You cannot tell them apart by looking, so every decision about whether you can afford something is a guess.
Move the tax out on the day the money arrives and the operating balance becomes true. That single change is worth more than the other three together.
Do you need a business account legally?
A sole proprietor generally is not required to have one. An LLC or a corporation effectively is, because mixing personal and business money undermines the separation the structure exists to give you.
But the practical answer is stronger than the legal one: one account that is only ever business turns your statement into half your bookkeeping.
The categorization screen showing transactions by account. Example data.
Setting them up without it becoming a project
Open the tax set-aside account first. It is the one that pays for itself fastest.
Automate the transfer if your bank will do it. A percentage on every deposit.
Add owner pay next, on a fixed day.
Leave the buffer until the first three are habits.
Four accounts opened in one afternoon and ignored is worse than one account opened this week and used.
What a month looks like with four accounts
Say $6,000 arrives from clients in a month, in five payments. Each payment lands in operating. The same day, 25% of it moves to the tax set-aside, which makes $1,500 by the end of the month.
On the 1st and the 15th, a fixed $1,400 goes to owner pay, which is $2,800. Business costs of $1,300 leave operating through the month. What is left, $400, moves to the buffer on the last day.
Nothing in that month needed a decision. The percentage and the paydays were decided once, and the month simply followed them. The figures are an example. Yours come from your own profit and your own tax position.
How much belongs in the buffer
Enough to cover the gap between a slow month and your fixed costs. A simple way to size it is to add up what the business must pay every month whatever happens, and use two to three months of that figure as a starting target.
Build it from what is spare, never from the set-aside, and stop when you reach the target. A buffer that keeps growing is money that could be paying you.
See all four in one place, free
Four accounts are only an improvement if you can still see the whole picture. La Soglia, the free membership of the Money Mastery System, holds more than 60 account types with personal and business together, so splitting your money does not mean losing sight of it. Free, no bank connection, no card. The Money Mastery Collective comes with it.
Bring it to the Collective
Which bank, which account, and whether the fees are worth it is a question the feed answers better than any article can, because the answer is local. The discussion feed is open on the free membership.
Questions we hear
Can I use a savings account for the set-aside?
Yes, and it is better if it pays interest and is slightly awkward to reach.
What if my bank charges for multiple accounts?
Compare the fee against one missed tax deadline. It is usually not close. If it is, move banks.
Do I need a separate account for each client?
No. That is a spreadsheet problem, not a banking one.
Should owner pay go to my personal account?
Yes. Owner pay is the bridge between the business and your own life, so it leaves the business on a set day and arrives in your personal account.
What percentage should go to the tax account?
Your own, worked out from your profit and your household's tax position. Our post on setting your tax set-aside percentage walks through it.
Start free with La Soglia
La Soglia is the free membership of the Money Mastery System. It gives you the Net Worth Tracker, where everything you own and everything you owe sits in one place, and the Money Mastery Collective. There is no card to enter and no bank connection.
Keep in touch
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A note on what this is
This article is educational. The Money Mastery System is an educational tool, not financial software, and nothing here is legal, tax, investment or financial advice. Whether your structure requires a separate account depends on your entity and your state. For guidance on your own circumstances, please speak with a qualified professional who knows them.
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