If one bad month would wipe you out, you don’t own a business.
You own a high-risk job.
That might sound harsh. But it’s one of the most important realisations a business owner can have.
Most owners I speak to are running right on the edge. Less than two weeks of cash. No forecast. No real plan. Just constant mental gymnastics around VAT, payroll, and which supplier is shouting the loudest this week. That’s not entrepreneurship. That’s living on a tightrope. And the scary part is this. Most people don’t even realise how exposed they are until something goes wrong. So let’s talk about how to fix it. Properly.
Why Cash Runway Matters More Than Profit
You can be profitable on paper and still be one bad month away from disaster.
I see this all the time. Decent turnover. Healthy margins. But cash is constantly tight. Owners taking money out whenever the bank balance looks okay, then scrambling when tax or suppliers are due. The stress this creates is huge. And it stops you making good decisions. Cash runway is simple. It’s how long your business could survive if no new money came in. If that number is measured in days, not months, you’re exposed.
A Real Example From a Real Business
One client we worked with ran a fabrication business turning over just under £900,000 a year. On the surface, everything looked fine. But when we dug into the numbers, the reality was uncomfortable. He had 0.9 days of cash runway. One bad month and the business was done. The issue wasn’t sales. Or margins. It was a lack of structure and control
Money was coming out of the business randomly. Tax wasn’t being planned for. Suppliers were being paid late. And every decision was reactive. So we changed one thing first.
We defined what “good” actually looked like.
Step One: Define Your Three-Month Number
You can’t hit a target you haven’t calculated the monthly overheads properly. Not guesswork. Real numbers. It came out at £78,000 a month.
So the target was clear. Three months of runway meant building cash reserves of roughly £234,000.
Once you know that number, everything changes. Because now you’re working backwards with purpose instead of guessing forwards with hope.
Step Two: Install a Proper Cash Forecast
Most businesses don’t have a forecast. And if they do, it’s often vague and monthly.
That’s not enough.
We installed a rolling 13-week weekly cash forecast. This showed exactly when customers actually paid, not when invoices were raised. And exactly when costs left the bank, including VAT and PAYE.
This alone removes a huge amount of stress. Because now nothing is a surprise.
You start spotting patterns. Pressure points. Opportunities.
And that’s where control comes from.
Step Three: Improve Margin Without Breaking the Business
Margin is where most businesses win or lose. In this case, we increased prices by 6 percent. No cost increases. No operational changes. Most customers accepted it without issue. That price rise dropped straight onto gross profit. And then onto the bottom line. Small changes here have an outsized impact on cash. But most owners are too close to the business to see it.
Step Four: Free Up Working Capital
We then looked at the working capital levers.
Debtor days were trimmed back. Not dramatically. Just tightened. Stock levels were reduced where they didn’t need to be held. Buying more on a just-in-time basis instead of tying cash up on shelves.
We also negotiated slightly better payment terms with suppliers. Sensibly. Without burning relationships.
Each change on its own was modest. Together, they freed up a lot of cash.
The Result
Cash runway went from nine days to 3.2 months.
That’s the difference between panic and confidence. Reserves were built up to £251,000. Including tax pots. No nasty surprises. No last-minute scrambles.
Debtor days dropped by ten days. Owner drawings became structured and tax-efficient instead of random.
And the biggest change wasn’t financial.
It was mental.
The stress lifted. Decision-making improved. The business became enjoyable again.
The Playbook You Can Use Yourself
If you want to build real protection into your business, start here.
Define your three-month number
Work out your true monthly overhead and multiply it by three. Make sure it’s realistic.
Build a rolling 13-week forecast
Weekly. Not monthly. This is where control comes from.
Create tax and reserve pots
Whether separate accounts or balance sheet tracking, it doesn’t matter. Consistency does.
Plan how you take money out
Stop taking whatever’s left. Decide what you want to earn and structure the business to support it.
Work your margins and working capital
Small improvements here compound quickly.
If the runway is under one month, act now
Freeze non-critical payments. Kill zombie subscriptions. Protect cash first.
If debtor days are over 35, you have work to do
Cash sitting in someone else’s bank account is your money being wasted.
One Bad Month Should Not Break You
Every business will have a bad month at some point. Or two.
That shouldn’t end everything.
You need a moat. A buffer. Some breathing space.
If you don’t have it yet, that’s okay. But this is the moment to start building it.
Because when cash is under control, everything else gets easier.
And if you need help putting this together properly, you don’t have to do it alone.
Call To Action
If you’re not sure what your cash runway actually is, that’s the first problem to solve.
And if you want a second pair of eyes on it, book a clarity session with us. We’ll look at your cash flow, your key drivers, and what needs to change so one bad month doesn’t put you under.
