Cash vs. Accrual Accounting: Which Should Your Small Business Use?

Cash or accrual? It sounds like accountant jargon, but it’s one of the first real decisions every small business makes — and it changes how your profit looks on paper, when you owe tax, and how useful your reports are. Here’s the difference in plain English, and how to choose the right method for your business.

The two methods, simply

Cash-basis accounting records income when money actually hits your bank account and expenses when you actually pay them. If you invoice a client in March but they pay in May, you record the income in May.

Accrual accounting records income when you earn it and expenses when you incur them — regardless of when cash changes hands. Same example: you’d record that income in March, when you did the work and sent the invoice.

A quick example

Say you finish a $5,000 project in December and get paid in January.

• Cash basis: the $5,000 counts as January income (next year).
• Accrual basis: the $5,000 counts as December income (this year).

Same business, same money — but a very different picture of which year you “made” it, and which year you owe tax on it.

Cash vs accrual at a glance

Pros and cons

Cash basis is simple, intuitive, and gives you a clear view of the cash you actually have. The downside: it can be misleading. A great month where clients happen to pay can hide the fact that you barely worked, and vice versa.

Accrual gives a truer picture of profitability and matches income to the expenses that earned it — which is why lenders, investors, and serious financial planning rely on it. The trade-off is complexity: you have to track money owed to you (accounts receivable) and money you owe (accounts payable).

What the IRS actually requires

Many small businesses can choose either method — but not all. As a general rule, once a business grows past a certain revenue threshold, or carries inventory, the IRS may require accrual accounting. The thresholds are adjusted over time, so if you’re approaching a few million in revenue or hold inventory, confirm your requirement before assuming you can stay on cash basis.

So which should you choose?

• Choose cash basis if you’re a smaller service business, you want simplicity, and you mainly care about the cash in your account.
• Choose accrual if you carry inventory, invoice clients and wait to get paid, plan to seek financing, or want reports that reflect true performance.

A common middle path: run your books on accrual for accurate management reporting, while your tax preparer files on whichever method you’re eligible for. Good accounting software (QuickBooks or Xero) can show you both views once your books are set up properly.

Can you switch methods later?

Yes — but changing your accounting method for tax purposes generally requires filing a form with the IRS and following specific rules. It’s very doable, just not something to do casually mid-year without guidance.

Frequently asked questions

Is cash or accrual better for taxes?

Cash basis can give you more control over timing (you’re taxed when paid), which many small owners prefer. But “better” depends on your business — and whether you’re even allowed to use cash basis.

Which method do most small businesses use?

Many small, service-based businesses start on cash basis for simplicity and move to accrual as they grow, add inventory, or seek financing.

Do I have to pick one and stick with it?

You choose a method and use it consistently; switching later requires IRS approval. Consistency is what keeps your books comparable year to year.

This article is general information for US small business owners, not tax or accounting advice. IRS eligibility rules change — please confirm your requirements with a qualified professional (or ask us).