The P&L is a period
A profit and loss statement, or income statement, summarizes revenue and expenses over a period such as a month, quarter, or year. It answers questions about gross profit, operating costs, and whether the business generated accounting profit during that period.
The balance sheet is a point in time
The balance sheet shows assets, liabilities, and equity as of a specific date. Cash, receivables, fixed assets, loans, credit cards, payroll liabilities, sales tax, deferred revenue, and owner or shareholder equity live here.
Why a profitable business can be short on cash
Profit is not the same as cash. A company can record revenue before collecting the receivable, buy equipment that becomes an asset instead of an immediate expense, repay loan principal that reduces a liability rather than an expense, or collect cash in advance that remains deferred revenue. The balance sheet explains many of the movements the P&L does not.
Read them together
Start with the P&L to understand what changed during the period, then use the balance sheet to test the quality of that story. A strong profit number paired with rapidly growing receivables may signal collection pressure. A low expense line paired with a rising credit-card balance may show costs that have been incurred but not yet paid.
The close should protect both statements
A bookkeeping process that only reviews the P&L can leave stale loans, unreconciled payroll liabilities, negative assets, or incorrect equity untouched for months. Reconcile the balance sheet every close; the P&L becomes more reliable when the balance-sheet accounts feeding it are controlled.
Use the balance sheet to challenge the profit story
When the P&L shows a surprising result, trace the related balance-sheet accounts before assuming the explanation is purely operational. Growing revenue with slower collections can increase receivables. Lower cash after a profitable month may reflect debt repayment, inventory purchases, equipment, owner distributions, or payments of liabilities recorded in an earlier period.
The relationship also works in reverse. An unusual balance-sheet movement can reveal a missing or misclassified income-statement item. Reviewing both statements together is one of the simplest ways to catch a financial story that looks plausible in one report but does not agree with the rest of the accounting record.
Sources
Requirements and product details can change. Check the linked guidance for the facts that apply to your situation.
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General information, not personalized accounting, tax, legal, or investment advice. Have the appropriate qualified professional review decisions that depend on your circumstances.