Cash vs. Accrual Accounting: Which Should a Small Business Choose?

Every set of books answers a deceptively simple question: when does money count? Cash and accrual accounting are the two possible answers, and the one you pick shapes every report you'll ever read.

Cash basis: money counts when it moves

Under cash accounting, income exists when the payment lands in your account, and an expense exists when the money leaves. Send an invoice in December, get paid in January? That's January income. It's the way most people intuitively think about money, which is exactly why most small businesses start here.

The strengths are real: your books mirror your bank account, there's nothing abstract to track, and you're never taxed on money you haven't received yet.

Accrual basis: money counts when it's earned

Accrual accounting records income when you earn it (the invoice date) and expenses when you incur them (the bill date), regardless of when cash moves. That December invoice is December income even if the check arrives in February.

Why bother? Because accrual books show economic truth. If you did $30k of work in Q4 but collected it in Q1, cash books make Q4 look like a disaster and Q1 look like a miracle. Accrual books show what actually happened.

How to choose

• Service business, no inventory, under ~$1M revenue: cash basis is usually the right call, simpler, and the IRS generally allows it.
• Carry inventory or invoice with long payment terms: accrual starts earning its complexity fast.
• Growing toward outside investors or loans: banks and investors expect accrual statements.
• Over ~$30M average revenue (the current federal threshold moves with inflation): accrual is generally required, talk to a CPA well before then.

The practical middle path

Many small businesses run cash-basis books but still track invoices and bills, so they know who owes them and what's due, without formally posting accrual entries. That hybrid gives you cash simplicity plus receivables visibility, and it's exactly how tools like SmallBooks are shaped: your reports follow the money, while open invoices and bill aging keep the future visible.

Whichever you choose, be consistent, and loop in a tax professional before switching, changing methods is a formal election, not a settings toggle.