Most restaurant owners think being busy equals being profitable - that's dangerously wrong. You can have a packed dining room every night but still face bankruptcy if you don't understand cash flow timing. Cash flow tracks actual money movement, not just paper profits.
What exactly is cash flow?
Cash flow is how much money you actually have available right now. It's different from profit because profit can exist on paper, but cash flow shows if you can pay your bills today.
💡 Example:
Restaurant De Tafel did €45,000 in sales in March. On paper a profit of €8,000. But:
- €12,000 still needs to be paid by guests (invoices)
- €15,000 to suppliers needs to be paid next week
- €3,000 rent is already written off
Cash flow: €8,000 profit - €15,000 + €12,000 = €5,000 positive
Why is cash flow more important than profit?
You can be profitable but still go bankrupt because of poor cash flow. This happens constantly in restaurants:
- Seasonal revenue: Busy summer, dead winter - but rent keeps coming
- Large investments: New kitchen equipment while revenue hasn't caught up yet
- Supplier prepayments: Getting a discount but temporarily broke
- VAT payments: Every quarter, a massive hit to your account
⚠️ Watch out:
Cash flow problems usually hit during quiet months (January, February) while December was still profitable. Plan this ahead of time.
The basic cash flow calculation
You calculate cash flow with this formula:
Cash Flow = Money IN - Money OUT
But break this down into three parts:
- Operating cash flow: Daily operations (revenue, purchases, wages)
- Investment cash flow: Equipment purchases, renovations
- Financing cash flow: Loans, repayments, your own money going in
💡 Example calculation March:
Money IN:
- March revenue: €42,000
- VAT refund: €1,200
- Total IN: €43,200
Money OUT:
- Ingredient purchases: €14,500
- Wages (gross + employer contributions): €18,000
- Rent + utilities: €4,200
- Other costs: €2,800
- Total OUT: €39,500
Cash flow March: €43,200 - €39,500 = +€3,700
Forecasting cash flow (where the magic happens)
The real power is forecasting ahead. If you know April is always 30% slower than March, you can prepare. This is the kind of thing you only learn after closing your first month at a loss - timing becomes everything.
- Schedule fewer staff
- Buy fewer fresh products
- Postpone big expenses until stronger months
- Negotiate longer payment terms with suppliers
Common cash flow traps in restaurants
Trap 1: Forgetting about VAT
You do €50,000 in revenue, but €4,000 of that is VAT you owe the government. Actual revenue: €46,000.
Trap 2: Ignoring seasonal patterns
December is amazing, January is brutal. Many restaurants fail in February and March.
Trap 3: Bad timing on investments
Buying a new oven during slow season while cash flow is already tight.
💡 Practical tip:
Create a 12-month cash flow forecast. Include all fixed costs (rent, insurance, loan payments) and estimate monthly revenue. You'll see problem months coming from miles away.
Tools and systems for cash flow management
You can track cash flow several ways:
- Excel: Free but lots of manual work and mistakes waiting to happen
- Accounting software: Exact Online, Moneybird - good for looking backward
- Restaurant-specific tools: Daily operational tracking built for food service
Most important thing: track it weekly, not monthly. By month-end, it's too late to fix problems.
How do you calculate cash flow? (step by step)
Collect all income from this month
Add up all revenue that actually came in (not invoiced but not yet paid). Also include subsidies, VAT refunds or other income.
Add up all expenses you actually paid
All costs that actually left your account: purchases, wages, rent, utilities, insurance. Not the invoices you still need to pay.
Subtract expenses from income
Cash Flow = Total income - Total expenses. Positive number = you have money left over. Negative = you spent more than came in.
Compare with previous month and same month last year
Look at trends. Is your cash flow structurally getting worse? Or was this a one-time dip due to, for example, a major repair?
✨ Pro tip
Track your exact cash position daily for 21 straight days, including weekends and Mondays. You'll discover payment patterns and expense timing that monthly statements never reveal.
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's the difference between cash flow and profit?
Profit is revenue minus costs on paper. Cash flow is actual money coming in minus money going out. You can show a profit but have negative cash flow if customers haven't paid their bills yet.
How often should I calculate my cash flow?
Weekly at minimum, daily if you can manage it. Monthly calculations are too late to prevent problems. You need time to react and adjust your operations.
What's healthy cash flow for a restaurant?
Keep 2-3 months of fixed costs in reserve as a safety net. If your fixed costs are €8,000 monthly, maintain €16,000-24,000 in cash reserves for unexpected problems.
Should I include VAT in my cash flow calculation?
Yes, but handle it correctly. VAT from customers is temporarily your money, but you must pay it quarterly. Count it as income but set it aside separately for tax payments.
What if my cash flow is consistently negative?
You have a serious problem that needs immediate action. Cut costs, raise prices, negotiate better payment terms with suppliers, or arrange emergency financing. Don't wait and hope it fixes itself.
How do I handle seasonal cash flow swings?
Build a 12-month forecast showing your peak and slow periods. Save extra cash during busy months to cover fixed costs during dead periods. Many restaurants fail because they spend December profits before surviving January.
What's the biggest cash flow mistake new restaurant owners make?
Confusing daily sales with actual available cash. A €5,000 night doesn't mean you have €5,000 to spend - you still need to cover ingredients, wages, and quarterly expenses like VAT payments.
📚 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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