Why It Matters
Accrual accounting gives a more accurate picture of business performance over time than cash accounting does. Revenue earned in one month but collected three months later still gets recorded in the month it was earned. Expenses incurred in one period but paid later still get recorded in the period they were incurred. This matching of revenue to expense within the period it relates to is what makes accrual financials reliable for decision-making and for comparison over time.
For business owners, accrual accounting is what makes a P&L meaningful. It shows what the business actually produced in a given period rather than just what cash happened to move in or out during that window.
How It Differs From Cash Accounting
Cash accounting records revenue when cash arrives and expenses when cash is paid. Accrual accounting records both when they are earned or incurred, regardless of cash timing.
The same business will produce dramatically different financials under the two methods in any single period. Over a long enough horizon, the two converge. But within any month or quarter, the difference between accrual and cash views is often where owners get confused about why a profitable P&L coexists with a tight bank balance.
What Owners Commonly Miss
The most common mistake is reading an accrual P&L as if it described cash. A business with strong accrual revenue can still be cash-strapped if customers are slow to pay, inventory is rising, or large expenses have been incurred but not yet paid. Reading the accrual P&L alongside the cash flow statement and the balance sheet is what reveals the full picture. The P&L tells what was earned. The cash flow statement tells what actually moved.