It starts in your chart of accounts. Instead of one general “Cost of Goods Sold” account, create at least two: COGS - Food and COGS - Beverage. If you serve alcohol, break beverage down further into COGS - Beer, COGS - Wine, and COGS - Liquor. Each of these categories has a different target cost percentage, and lumping them together hides problems you need to see.

Every purchase from your food distributors gets coded to COGS - Food. Every invoice from your liquor distributor gets split across the appropriate beverage sub-accounts. This coding needs to happen when the bill is entered, not weeks later when nobody remembers what was on the delivery. If your POS system tracks sales by food vs. beverage, you now have both sides of the equation and can calculate your actual cost percentages.

The formula is straightforward. Beginning inventory plus purchases minus ending inventory equals your true COGS for the period. That means you need physical inventory counts. Most restaurants that take this seriously count weekly or at least every two weeks. Monthly counts work but they make it harder to catch theft, waste, or pricing issues quickly. Count food inventory and beverage inventory separately so the numbers feed into the right accounts.

Industry benchmarks give you targets to measure against. Food cost typically runs 28% to 35% of food sales. Beverage cost runs lower, usually 18% to 25% of beverage sales. If your food cost is hitting 40%, something is wrong. It could be portion control, waste, theft, vendor pricing, or recipes that weren’t costed properly. You would never spot that problem if food and beverage costs were combined into one number.

Alcohol tracking deserves extra attention in New York. Beer, wine, and liquor each have different expected pour costs. Beer runs the highest because of keg waste and over-pours. Liquor should be the lowest if your bartenders are using jiggers and your pricing is right. Tracking them separately tells you exactly where margin is leaking. On top of that, businesses with a New York State Liquor Authority license have reporting and compliance obligations that require accurate records of alcohol purchases and sales. Sloppy record-keeping creates problems beyond just your margins.

Your POS system should be configured to match your accounting categories. If the POS groups everything as “food” when you sell a burger with a beer, your sales split will be wrong and your cost percentages will be meaningless. Make sure the menu is built so food items ring up as food sales and drinks ring up under the correct beverage category.

Restaurant bookkeeping requires this level of detail because the margins are thin and the failure rate is high. A restaurant running a 32% food cost that could be running 29% is leaving real money on the table every single month. You only discover that gap when the tracking is granular enough to show it.

If your books currently have one COGS line for everything, getting this restructured is worth prioritizing. Our Bronx bookkeeping services can help you set up the right account structure in QuickBooks and build a process for coding purchases and counting inventory that actually sticks. Once the system is in place, the numbers start telling you where to focus instead of just confirming that you spent a lot on food last month.