Cash vs. Accrual Accounting: What's the Difference, and Which Should Your Business Use?

You did a $500 bookkeeping job in March. The client paid you in April. Which month did you “make” that $500? The honest answer is: it depends which accounting method you're using — and that's not a technicality, it changes what your books say about your business.

Cash accounting and accrual accounting are the two ways to answer that question. Neither one is “more correct” in some universal sense — they're just two different rules for when a transaction counts, and small businesses are allowed to use different ones depending on where they are and what they do.

The cash method, with an example

Say you invoice a client for $500 on March 28 and they pay you on April 5.

Under the cash method, that $500 isn't income until April — the month the money actually landed in your account. It's the same logic most people already use for their personal finances: your bank balance is your bank balance, full stop.

Why people like it: it's simple. Your books match your bank account, so you always know exactly how much cash you have, and you're never taxed on money you haven't collected yet.

Where it misleads you: it can make a healthy business look broke, or a struggling one look fine, purely based on timing. If you did $10,000 of work in December but don't get paid until January, December's books show almost no income — even though the work, and the value you delivered, happened in December.

The accrual method, with the same example

Under the accrual method, that same $500 job counts as income on March 28 — the day you completed the work and sent the invoice — not the day the payment arrived. The unpaid invoice sits on your books as accounts receivable, a term for money customers owe you that you haven't collected yet, until the cash actually comes in.

Why people like it: it shows the true shape of your business — what you've actually earned and owe — independent of payment timing. This is also the method required to produce financial statements under Generally Accepted Accounting Principles (GAAP), the standard rulebook accountants use, which matters if you'll ever need statements a lender or investor trusts.

Where it's harder: you have to track money you haven't received and bills you haven't paid yet, which takes more bookkeeping discipline than “check your bank balance.”

Why this isn't just a technical detail

The method you use changes what your profit and loss statement says for any given month — sometimes by a lot. A business with fast-paying customers won't see much difference between the two methods. A business that invoices on 30- or 60-day terms, or that buys inventory well before selling it, can see a very different monthly picture depending on which method it uses. That's exactly why the method has to be chosen deliberately and applied consistently, not switched around from month to month.

Which method can you actually use? (This differs by country)

In the United States: most small businesses and self-employed people can freely choose the cash method. The IRS generally requires accrual accounting for C corporations and partnerships with a C corporation as a partner, and for businesses that need to track inventory as income-producing property — but there's a gross receipts test exception: if your average annual gross receipts for the prior three tax years are at or below a set threshold ($32 million for tax years beginning in 2026, adjusted for inflation each year under IRC Section 448(c)), you qualify for the small-business exception and can use the cash method even if you'd otherwise be required to use accrual. In practice, this means almost every small business and solo bookkeeper in the US is free to pick whichever method suits them.

In Canada: the default is the opposite. The CRA requires accrual accounting for business income under Section 28 of the Income Tax Act. The cash method is only available to farmers, fishers, and self-employed commission agents — everyone else reporting self-employment or business income is required to use accrual, whether or not they find it more complicated. If you're a Canadian freelancer, contractor, or small business owner, this isn't optional the way it is south of the border.

The bottom line

Understanding both methods matters even if you only ever use one: accrual is the language of financial statements, and once you can read a set of books built on it, you can make sense of any business's numbers — not just your own. If you're building your own bookkeeping habits from scratch, iLuvAccounting's free courses and Academy start with exactly this kind of foundation.