Most restaurant owners think drink margins are their easiest profit center, but the reality tells a different story. Small calculation errors silently drain hundreds of euros monthly from your bottom line. The contrast between what you think you're earning and actual profits often shocks experienced operators.
Mistake 1: Calculating with wrong VAT percentage
The costliest error: alcoholic beverages carry 21% VAT, not 9%. For drink margins you must calculate excluding VAT.
⚠️ Note:
A bottle of wine at €32.00 on the menu is excluding VAT: €32.00 / 1.21 = €26.45. Not €32.00 / 1.09 = €29.36!
💡 Example:
Bottle of wine on menu: €32.00 (incl. 21% VAT)
- Selling price excl. VAT: €26.45
- Purchase price: €8.50
- Drink margin: (€8.50 / €26.45) × 100 = 32.1%
With incorrect VAT calculation you'd land at 29%, creating a completely distorted picture.
Mistake 2: Calculating pour cost incorrectly for cocktails
For cocktails you must include ALL ingredients: spirits, mixers, garnish, even ice. Many operators forget the 'small' components that add up quickly.
💡 Example: Gin and Tonic
Selling price: €9.50 (incl. VAT) = €7.85 excl. VAT
- Gin (5cl): €1.20
- Tonic (20cl): €0.45
- Lime (1 wedge): €0.08
- Ice: €0.02
Total ingredient costs: €1.75 = 22.3% pour cost
Mistake 3: Not accounting for loss and evaporation
With spirits, alcohol evaporates, bottles break and remnants accumulate. Calculate 3-5% loss on top of your purchase price - this is one of the most common blind spots in kitchen management that experienced operators often overlook.
- Evaporation: Particularly with open bottles of spirits
- Breakage: Broken bottles and glassware
- Remnants: Final drops that can't be poured cleanly
- Tastings: What you offer complimentary to guests
Mistake 4: Misjudging portion size
Standard portions for alcohol are established, yet many bars pour more generously. This completely destroys your calculations.
💡 Standard portions:
- Wine per glass: 12.5cl - 15cl
- Draft beer: 25cl or 33cl
- Spirits: 3.5cl - 5cl
- Liqueur: 2cl - 4cl
Track your actual portions for a full week. Often you're pouring 10-20% more than you realize.
Mistake 5: Forgetting wine loss due to oxidation
Open bottles of wine that don't sell the same day lose quality rapidly. This costs serious money, especially with expensive wines by the glass.
⚠️ Note:
A bottle costing €60 to purchase yields 5 glasses at €18 each. But if you discard 2 glasses due to oxidation, your actual cost per glass jumps from €12 to €20.
Mistake 6: Not accounting for seasonal fluctuations
You sell more beer in summer, more wine in winter. Your average drink margin shifts seasonally due to different product mix.
- Summer: More beer (lower margin) and cocktails (higher margin)
- Winter: More wine (average margin) and hot beverages
- Holidays: More champagne and premium spirits
Mistake 7: Not accounting for happy hour prices
Reduced prices during quiet periods mean different margins entirely. Calculate each price period separately to verify you're still profitable.
💡 Example: Happy hour beer
Normal: €4.50 (margin 28%) vs Happy hour: €3.50
- Beer purchase price: €0.95
- Happy hour price excl. VAT: €2.89
- Happy hour margin: 32.9%
Despite the lower price, margin is actually higher due to reduced staff and overhead during quiet periods.
How do you calculate drink margins correctly? (step by step)
Determine the correct selling price excluding VAT
Alcoholic beverages: divide by 1.21 (21% VAT). Non-alcoholic in restaurant: divide by 1.09 (9% VAT). This is your basis for all calculations.
Add up all ingredient costs including loss
Note actual portion sizes, add up all ingredients (also garnish and mixers), and calculate 3-5% loss for evaporation and breakage.
Calculate your pour cost percentage
Formula: (Total ingredient costs / Selling price excl. VAT) × 100. Standard pour cost is between 18-25% for most drink types.
✨ Pro tip
Track your top 3 cocktails and 2 wine-by-glass selections weekly for actual pour costs over 30 days. These five items typically represent 60% of your beverage profit.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
What is a good drink margin for restaurants?
Standard pour cost ranges between 18-25%. Beer typically runs 20-25%, wine 25-30%, cocktails 15-22%. This varies significantly by concept and location.
Should I include VAT in my drink margin calculation?
No, always calculate excluding VAT. Alcoholic beverages carry 21% VAT, non-alcoholic in restaurants 9%. Divide your menu price by 1.21 or 1.09 respectively.
How do I account for wine loss due to oxidation?
Track how many glasses you discard from open bottles weekly. Divide your purchase price by glasses actually sold, not the theoretical 5-6 glasses per bottle. This often reveals shocking waste levels.
Why doesn't my calculated drink revenue match my till readings?
Check if actual portion sizes match your calculations. Measure what you're actually pouring for one week - this is often 10-20% more than standard portions.
Should I calculate happy hour prices separately?
Absolutely, lower prices create different margin structures. Calculate each price period separately to verify profitability, especially during traditionally quiet hours.
How do I handle cocktail garnish costs in margin calculations?
Include every component: citrus wedges, olives, cherries, herbs, even specialty ice. These 'small' costs add €0.15-0.30 per drink and significantly impact margins on high-volume cocktails.
What's the biggest mistake bars make with draft beer margins?
Not accounting for foam waste and line cleaning losses. Draft beer typically has 8-12% waste from foam, cleaning, and end-of-keg remnants that bottles don't have.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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