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Finance & Budgeting12 min read

Cash Flow is King

Learn why profitable businesses can still run out of money, how to build a monthly cash flow projection, and the warning signs that trouble is coming.

Cash Flow is King

Here is something that surprises most people: a profitable business can go broke. Not because it is failing, but because it runs out of cash at the wrong moment.

Profit is what you earn over time. Cash flow is the money actually sitting in your account right now. They are not the same thing, and understanding the difference is one of the most important lessons in business.

Profit vs Cash Flow: A Simple Example

Imagine you sell custom T-shirts. You buy 50 blank T-shirts for £200 (paid upfront in January). You sell all 50 for £12 each throughout January and February, earning £600.

Profit: £600 - £200 = £400. Great!

But here is the cash flow problem:

MonthCash InCash OutBalance
January (start)£0£200 (T-shirts)-£200
January (sales: 20 shirts)£240£0£40
February (sales: 30 shirts)£360£0£400

In January, you spent £200 before you earned anything. If you did not have £200 to begin with, you could not have bought the shirts — even though the business is profitable overall.

This is why cash flow matters. You need money in the right place at the right time.

The Cash Flow Formula

Every month, your cash flow is:

Cash Flow = Cash In - Cash Out

And your running balance is:

End-of-Month Balance = Start Balance + Cash In - Cash Out

If your end-of-month balance goes negative, you have a cash flow problem — even if your business is profitable on paper.

Building a Monthly Cash Flow Projection

A cash flow projection is a table that shows your expected income and expenses for each month, usually 3-6 months ahead. It is like a weather forecast for your money.

Here is a template for a handmade jewellery business:

Month 1Month 2Month 3Month 4Month 5Month 6
Cash In
Product sales£80£120£150£180£200£220
Futurepreneurs drawdown£150£0£0£100£0£0
Other income£0£0£0£0£0£0
Total Cash In£230£120£150£280£200£220
Cash Out
Materials (beads, wire, clasps)£60£40£50£40£50£50
Packaging£15£10£15£10£15£15
Market stall fee£0£25£0£25£0£25
Etsy listing fees£5£5£5£5£5£5
Postage£10£15£20£20£25£25
Marketing (Instagram ads)£20£20£20£20£20£20
Total Cash Out£110£115£110£120£115£140
Monthly Cash Flow£120£5£40£160£85£80
Running Balance£120£125£165£325£410£490

This projection tells you several important things:

  • Month 2 is tight (only £5 positive cash flow) — you cannot afford any surprise expenses
  • The Futurepreneurs drawdowns in months 1 and 4 provide essential cash injections
  • By month 6, you have built a healthy £490 balance

The "Danger Zone" Indicators

Your cash flow projection has warning signs you need to watch for:

Red flag 1: Running balance drops below £0

This means you literally cannot pay your bills. You need to either delay a purchase, speed up income, or draw down funds from your Futurepreneurs wallet.

Red flag 2: Running balance drops below one month's expenses

Even if it is positive, having less than one month of expenses as a buffer is risky. One slow sales week could tip you into the red.

Red flag 3: Cash out exceeds cash in for two or more months in a row

A single bad month happens. Two in a row is a pattern. Three is a crisis. If your projection shows this, you need to cut costs or find new revenue before it happens.

Red flag 4: Large expenses bunched together

If you need to buy materials, pay a stall fee, AND restock packaging all in the same month, that can cause a cash crunch — even if those are all normal, planned expenses.

Red flag 5: All your income depends on one source

If 80%+ of your cash comes from one customer, one event, or one platform, you are one cancellation away from disaster. Diversify.

Why Profitable Businesses Run Out of Cash

Here are the four most common reasons:

1. Timing mismatch

You pay for materials before customers pay you. This is the most common cash flow killer for product businesses. You spend £100 on ingredients on Monday, but do not sell the cakes until Saturday.

2. Seasonal sales

A Christmas decorations business earns 80% of revenue in November-December and near-zero in summer. If you spend evenly throughout the year, you will run out of cash by March.

3. Growth costs money upfront

Getting more customers sounds great, but it often means buying more stock, more materials, and more packaging before the sales come in. Fast growth can create cash flow crunches.

4. Late payments

If you sell to other businesses or take custom orders, customers might pay late. You delivered the product, it shows as revenue on paper, but the cash has not arrived.

Cash Flow Survival Strategies

Strategy 1: Get paid before you spend

Take deposits or full payment upfront whenever possible. For custom orders, charge 50% upfront and 50% on delivery. This ensures you always have cash before you buy materials.

Strategy 2: Keep a cash buffer

Set aside 20% of your Futurepreneurs funding as a cash reserve that you only touch in emergencies. If your funding goal is £200, keep £40 as your safety net.

Strategy 3: Time your purchases carefully

Do not buy three months of stock at once unless you get a significant bulk discount. Buy what you need for 2-4 weeks. Yes, you might pay slightly more per unit, but you keep more cash available.

Strategy 4: Negotiate payment terms

Some suppliers offer "buy now, pay in 30 days" terms. For a teen business this is less common, but if you are buying from a small local supplier, it is worth asking.

Strategy 5: Use your Futurepreneurs drawdowns strategically

Time your milestone drawdown requests to align with your biggest upcoming expenses. Do not draw down all your funds at once — keep some available for later months when you might need them.

How to Create Your Cash Flow Projection

Step 1: Write down your expected monthly income for the next 6 months. Be realistic — estimate on the low side. Include sales, drawdowns, and any other income.

Step 2: Write down your expected monthly expenses. Include everything: materials, packaging, fees, marketing, postage. Check your materials budget (see Guide 20) for the list.

Step 3: Calculate monthly cash flow (income minus expenses) and running balance for each month.

Step 4: Scan for danger zones. Any month where the running balance dips below one month's expenses needs attention.

Step 5: Adjust your plan. Can you delay a large purchase? Can you request a drawdown earlier? Can you pre-sell to bring income forward?

Step 6: Update your projection every month with actual numbers. Replace estimates with reality and re-forecast the remaining months.

Cash Flow Rules of Thumb

RuleWhy It Matters
Always have at least 1 month of expenses as a cash bufferProtects against slow sales weeks
Get paid upfront whenever possibleEliminates timing mismatch risk
Buy inventory in small batchesKeeps cash available for surprises
Update your projection monthlyReality always differs from forecasts
Drawdown funds only when you need themKeeps your Futurepreneurs wallet as a safety net

Next Steps

Ready to build your own cash flow projection? Head to Tool 10: Cash Flow Forecaster in the Tools section. It provides a pre-built monthly template where you enter your expected income and expenses, and it automatically calculates your running balance and flags any danger zones.

Cash flow is not glamorous, but it is the difference between a business that survives its first year and one that collapses despite having great products and happy customers. Master your cash flow and you master your business.