Food Cost Percentage: The Number That Drives Everything
Food cost percentage is the ratio of what you spend on ingredients to what you earn in food revenue. It is one of the most important numbers in restaurant financial management — and one of the most commonly ignored.
The formula is simple: food cost ÷ food revenue × 100. If you spent $12,000 on food and earned $40,000 in food sales, your food cost percentage is 30%. Most full-service restaurants target 28–35%. Quick-service operations typically aim for 25–30%.
The problem is that most owners calculate this number quarterly — or not at all. By the time you realize your food cost crept from 31% to 38%, you have already absorbed the loss. Track it monthly. Compare it against your targets. When the number moves, investigate immediately: supplier price increases, kitchen waste, portioning inconsistency, or theft are the usual culprits.
Accurate food cost tracking requires equally accurate invoice recording. Every delivery, every supplier invoice, every emergency grocery run has to be logged in your books. If your purchasing data is incomplete, your food cost calculation is wrong — and every decision you make from it is based on fiction.
Tip Reporting and Payroll Compliance
Restaurant payroll is more complex than payroll in most industries. You have tipped employees, non-tipped employees, tip pooling arrangements, credit card tip processing fees, and California’s own minimum wage rules that interact with federal tipped wage rules differently than most states.
Credit card tips are documented automatically through your POS system — every transaction captures the tip amount, which is then paid to the employee through payroll after any applicable credit card processing fees are deducted. Those fees need to be tracked separately and cannot reduce an employee’s take-home below minimum wage.
Cash tips are the trickier part. Employees are legally required to report cash tips to you. You are required to include them on W-2s as taxable wages and withhold the appropriate payroll taxes. If your employees routinely underreport cash tips, you have both a compliance problem and a payroll records problem.
Tip pooling adds another layer. If your restaurant uses a tip pool that includes back-of-house staff, the rules around documentation, eligible participants, and employer neutrality are specific. Get this wrong and you expose yourself to wage claims.
A bookkeeper who understands restaurant payroll reconciles your tip income monthly, ensures your payroll records are accurate, and keeps you out of trouble with the IRS and the California Labor Commissioner. For more on the financial reports that show you where your payroll costs stand, see our guide on small business tax deductions and what employee-related costs you may be missing.
Sales Tax for Food Service: California’s Rules Are Not Simple
California sales tax on food is one of the most misunderstood compliance areas for restaurant owners. The general rule — hot prepared food sold for immediate consumption is taxable, cold food to go is not — sounds straightforward until you look at the exceptions.
Taxable items in most California restaurants include: hot food sold for immediate consumption (dine-in or to-go), carbonated beverages, and food sold with eating utensils provided. Non-taxable items typically include cold sandwiches sold to go, cold beverages, and most grocery-style items sold for home preparation.
If your restaurant does both dine-in and takeout, you need to track taxable versus non-taxable sales separately. If you operate a food truck or catering business, the rules shift again. And if you sell beer or wine, those sales are taxable regardless of food pairing.
The CDTFA (California Department of Tax and Fee Administration) is the agency you remit sales tax to, and they conduct restaurant audits regularly. The most common triggers are: large discrepancies between reported taxable sales and POS data, inconsistent reporting across periods, and failure to account for complimentary meals or employee meals correctly.
Your bookkeeper should reconcile your sales tax liability monthly, ensure your POS system is categorizing taxable vs. non-taxable correctly, and keep your remittance on schedule. Errors here compound fast — penalties and interest on late or underpaid sales tax add up quickly.
Inventory Management and Cost of Goods Sold
Inventory is the link between what you buy and what you sell. Without accurate inventory counts, you cannot calculate your true cost of goods sold — which means your P&L is wrong, your food cost calculation is wrong, and your margin analysis is wrong.
The accounting formula for cost of goods sold is: beginning inventory + purchases − ending inventory. If you do not take a physical inventory count at the end of each period, you are estimating — and estimates in a high-volume restaurant with daily spoilage are rarely accurate.
Do a physical count at least monthly. Match it against your purchasing records. The variance between what you bought and what you can account for in sales or waste is called shrinkage — and consistent shrinkage is a signal worth investigating. It might be spoilage, it might be portioning issues, or it might be theft.
Your bookkeeper should ensure your inventory adjustments flow correctly into your financial statements each period so your profit margins reflect reality, not assumptions.
POS Reconciliation: Closing the Loop Every Day
Your point-of-sale system records every transaction. Your bank account records every deposit. Those two numbers should match — and reconciling them is how you catch errors before they become problems.
Daily POS reconciliation means comparing your POS end-of-day report to your actual cash drawer and expected credit card batch deposits. If the numbers do not match, you need to know why today — not at month-end when the discrepancy has been buried under 29 more days of transactions.
Common POS reconciliation issues include: unclosed tables (server walked with cash and never settled the check), voids and comps that were not properly authorized, split-tender errors, and credit card processing delays where the batch did not settle correctly. Each of these shows up as a discrepancy between your POS report and your bank deposit.
At the monthly level, your bookkeeper reconciles your bank statements against your POS summaries and accounting records to ensure every dollar is accounted for. This is the foundation of reliable financial reporting — without it, your books are not trustworthy. For more on how your financial reports work together, see our post on the signs you need a bookkeeper.
Cash Handling Procedures That Protect Your Business
Cash is still a significant part of the business for many Southern California restaurants — and it is the hardest part to track and the easiest to lose.
Strong cash handling starts with standard opening and closing procedures: counted starting banks, end-of-shift cash counts by the server, manager verification before the drawer is closed, and daily deposit of all cash receipts. Every deviation from the expected amount should be documented.
Bank deposits should happen daily — not weekly, not when someone has time. Cash that sits in a safe is cash that can walk out the door, and it creates reconciliation problems because the deposit date does not match the transaction date.
Your accounting records need to reflect daily cash deposits accurately. Every deposit should be matched to the POS report for that day. Any overage or shortage should be recorded as such — not quietly adjusted. If you have consistent cash shortages, that is a pattern worth investigating regardless of the amount.
Many restaurant owners across San Diego, Los Angeles, Orange County, and the Inland Empire discover cash handling problems only when they review months of data with a bookkeeper. By then, the losses are already baked in.
Putting It Together: What Clean Restaurant Books Look Like
A restaurant with solid bookkeeping has a clear picture of its margin every month: food cost percentage calculated from accurate purchasing and inventory data, payroll costs that include every tip dollar properly, sales tax liability that is correctly calculated and remitted on time, and a bank reconciliation that ties back to the POS to the penny.
It also means you can answer basic financial questions without panic: What was my food cost last month? Am I profitable on dine-in vs. catering? Do I have enough cash to cover next week’s payroll? Those answers live in your books — if the books are kept correctly.
Ledger Bee LLC works with restaurant owners throughout Southern California to bring this level of clarity to their finances. Whether you are a new owner trying to get your books set up correctly, or an established operation that has been running on gut feel and hoping for the best, a clean set of books changes how you run the business.