An annual budget in 30 minutes. Yes, it's possible. Here's the method

Here's the annual budget in 30 minutes method:

📊 1. The magic formula: (Revenue - Expenses) = Result

It's simple. Projected annual sales minus expenses (purchases, rent, salaries, electricity, transport, KRA, etc.). The result is what's left. The goal of a budget is to anticipate this result and make it positive. No need to detail every line. Group sales into 3 categories (Product A, B, C). Group expenses into 5 categories (suppliers, staff, KRA, rent/energy, miscellaneous). With 8 categories, you have 80% of your data.

📈 2. Compare your last 12 months

Take your last three balance sheets or your latest bank statements. Calculate your average monthly sales. Take the highest. Take the lowest. Your budget must cover the worst month and aim for the best. A Nakuru bakery calculated its last 12 months. Best month: KES 320,000. Worst: KES 180,000. For the year, it budgeted an average of KES 250,000, aiming to exceed KES 320,000 for 6 months. In 30 minutes, it had a clear view.

🎯 3. The rule of 3 priorities

You want to invest. You want to hire. You want a new machine. But you don't have enough money for everything. Instead of spreading thin, focus on 3 priorities for the year. A Mombasa restaurant chose: 1) chef training, 2) online booking system, 3) loyalty campaign. It budgeted for each priority. Other projects were postponed. Result: it spent KES 100,000, but increased revenue by KES 300,000.

Tip: Use a Google Sheets spreadsheet. It's free, accessible from your phone, and your figures update automatically. A budget not tracked is just an intention.

Do it now: Open your spreadsheet. Enter your last 12 months in three columns: sales, expenses, result. Calculate your averages. In 20 minutes, you have a solid foundation. Use the remaining 10 minutes to allocate your 3 priorities.

Sources: Harvard Business Review – The One-Page Business Plan; McKinsey – SME Financial Management 2026.

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