A month's income statement

Sales are at the top. Subtracting the cost of what was sold leaves gross profit, and subtracting the running expenses leaves the profit. In this example the restaurant made $7,000.00, 21.9% of what it sold.

ItemAmount
Sales$32,000.00
Cost of sales−$9,800.00
Gross profit$22,200.00
Wages−$9,600.00
Rent−$3,000.00
Utilities−$1,400.00
Other expenses−$1,200.00
Profit for the month$7,000.00

The balance sheet

Assets are what you have: money in cash and in the bank, and stock. Liabilities are what you owe: suppliers, wages or taxes payable. The difference is equity, what really belongs to the owner.

ItemAmount
Cash and bank$6,500.00
Stock$3,700.00
Total assets$10,200.00
Owed to suppliers−$2,800.00
Equity$7,400.00

Why making a profit is not the same as having cash

You can show a profit and have little cash: because you bought stock for several weeks, paid an old debt or took money out. That is why you look at both: the income statement says whether the business works, and the balance sheet where the money is.

Questions

Do I still need an accountant?

For taxes and legal filings, yes. Day-to-day statements help you decide without waiting for the month-end close.

Are the owner's withdrawals an expense?

No. A withdrawal lowers cash and equity, but it does not change the profit for the period.