Cash vs accrual accounting: which one your business should use
The difference between cash and accrual accounting, why it changes your numbers, and a simple way to pick the right method.
Cash and accrual are the two ways to keep books, and the choice quietly shapes how profitable you look on paper. The difference comes down to one question: do you record a transaction when the money moves, or when the work happens? Both are valid, but one usually fits your business better.
Cash basis: record when money moves
Under the cash method, you book income when payment lands in your account and expenses when you actually pay them. It is simple and it mirrors your bank balance, which makes it intuitive. A December invoice you collect in January counts as January income. Most small service businesses start here.
Accrual basis: record when it is earned
Under the accrual method, you book income when you earn it and expenses when you incur them, regardless of when cash changes hands. That December invoice counts as December income even if you collect it later. Accrual gives a truer picture of profitability over time, especially when you bill clients or carry inventory.
Why the choice changes your numbers
- Cash basis can make a month look great or terrible based purely on payment timing.
- Accrual basis matches revenue to the period that earned it, smoothing out that noise.
- Cash basis often defers tax, since income is not counted until collected.
- Accrual basis is required for larger businesses and any company holding significant inventory.
A simple way to pick
If you are a small service business that gets paid close to when you do the work, cash basis is simpler and usually fine. If you invoice clients on terms, hold inventory, or have grown past the IRS gross receipts threshold for required accrual, lean toward accrual. When in doubt, ask a CPA, because switching methods later involves a formal change.
Cash basis tells you what is in the bank. Accrual basis tells you whether the business is actually making money. Pick the one that answers the question you care about.
Whichever method you choose, consistency is what matters. Books kept on one method all year, categorized as transactions land, give you statements you can trust and a return that ties out cleanly.
