For years, the advice to business owners has sounded something like this:
“If you want to grow, you’ve got to invest. New kit, new vans, new systems, that’s how you move forward.”
And that’s still true, but the rules of the game have changed.
- Money is no longer cheap.
- Tax relief on investment isn’t as generous as it used to be.
- The bar for a “good” investment is now much higher.
So the big question is:
In a high-cost capital world, should you still be buying that new kit, or hanging onto your cash?
Let’s break it down.
The era of “cheap money” is over
For a long time, interest rates were so low that:
- Borrowing felt almost painless.
- The cost of capital wasn’t a big factor in your decision.
- It was easy to justify new equipment or vehicles with fairly rough numbers.
Now:
- Interest rates are higher and likely to stay above the ultra-low levels we got used to.
- Banks are pickier about who they lend to and on what terms.
- Government has reduced some capital allowances, so you don’t get quite the same tax kickback for certain investments.
That doesn’t mean you stop investing.
It just means you can’t afford to wing it anymore.
Why investment decisions feel scarier now
If you’re hesitating over that new machine, van, refurbishment or software system, you’re not alone.
Here’s what’s in the back of most owners’ minds:
- “What if demand softens and I’m stuck with the finance payments?”
- “What if I lock up cash I’ll wish I’d kept for wages or tax?”
- “What if the tax relief isn’t as good as I think it is?”
And underneath all of that:
“What if I make a big, expensive mistake?”
That’s a healthy fear. The trick is not to let it paralyse you, but to use it as a prompt to tighten up how you make investment decisions.
When buying new kit still makes sense
Firstly, let’s be clear: investing in your business is not the enemy.
In a high-cost capital environment, good investments are still good, they might be rarer, but they’re often more valuable because your weaker competitors won’t make them.
Buying new kit, vehicles or systems still makes sense when:
- It removes a bottleneck that’s genuinely holding back sales or delivery.
- It reduces labour or time in a way you can actually measure.
- It cuts waste or rework so your margin improves.
- It enables you to sell higher-value work at better prices.
- You can clearly see that the extra profit and cash outweigh the finance costs and tax.
That’s the key: you need to see a clear, believable path from “spend this money” to “make this extra cash”.
The mistakes I see owners making with investment
Here are a few red flags I look out for when a client tells me they want to buy something big:
1. “We want it for the tax relief”
If the main reason for buying the asset is tax, alarm bells ring.
Yes, tax matters. Capital allowances matter. But:
- Spending £50,000 to save £9,500 in tax is still spending £40,500 in real money.
- If you didn’t actually need the thing, that’s a terrible trade.
Tax relief should be the cherry on top, not the cake.
2. “Our competitor has one”
Copying competitors is not a strategy.
You don’t know:
- Their margins
- Their borrowing terms
- Their cash position
- Whether they’re actually making money out of it
Just because someone else has shiny kit doesn’t mean it makes sense for your numbers.
3. “We’ve always upgraded every X years”
This one is common with vehicles, machinery and IT.
A cycle like:
- “We always change vans every 3 years.”
- “We always upgrade machines every 5 years.”
That made sense when:
- Finance was cheap
- Tax relief was generous
- The economy was growing more strongly
Now you want to be asking:
- “Is this the best use of cash this year?”
- “What’s the cost of keeping it one more year vs replacing now?”
Routine upgrades need a rethink.
How to judge an investment properly (without turning into an economist)
You don’t need to become a corporate finance expert. But you do need a simple, disciplined process.
Here’s the one I use with clients.
Step 1: Get crystal clear on the why
Ask:
- What specific problem is this solving?
- What bottleneck is it removing?
- What cost is it reducing?
- What extra revenue does it make possible?
If you can’t answer those in plain English, you’re not ready to sign anything.
Step 2: Turn the why into numbers
Then we attach numbers to the story:
- Cost of the asset – including installation, training, downtime, etc.
- Finance costs – interest, fees, any balloon payments.
- Running costs – maintenance, energy, staffing.
- Expected benefit – extra revenue, reduced labour, fewer defects, faster turnaround, etc.
What we’re looking for is:
- Payback period – how long until this pays for itself in extra profit?
- Impact on monthly cashflow – does it leave you tighter or more comfortable?
- Sensitivity – what happens if sales are 20% lower than you hope? Or it takes 6 months to bed in?
If it only works under a “best case” scenario, it’s probably not a good bet right now.
Step 3: Factor in tax properly
This is where a lot of spreadsheet optimism creeps in.
You need to know:
- What level of capital allowances you actually get on this asset now (not what you got on something similar years ago).
- How quickly that tax relief hits, year 1 vs spread over several years.
- The impact on profit vs cash: you can be cash-poor and still profitable on paper if everything is tied up in assets.
We then build the tax relief into the model as a bonus, not the main justification.
Step 4: Choose how to fund it
Once we like the investment itself, we look at funding options:
- Cash
- HP / asset finance
- Bank loan
- A mix of the above
The choice depends on:
- Your existing debt levels
- Your cash buffer (how many months’ overheads you have in the bank)
- Your growth plans and what else you might want to fund soon
You want to come out of the deal with:
- A stronger business
- The ability to sleep at night
- Enough flexibility to handle a bump in the road
So, should you buy it or not?
Here’s my rule of thumb for clients:
If we can’t clearly show, on paper, that this investment pays for itself on realistic numbers, you probably shouldn’t do it right now.
On the other hand:
- If it removes a clear bottleneck,
- Stacks up on sensible, not rosy, assumptions, and
- Still looks good after funding costs and tax.
Then even in a high-cost capital world, it’s likely a smart move, and it might even give you the edge over more cautious competitors.
How we can help at MDH
This is exactly the kind of decision where having an accountant who thinks beyond year-end makes a big difference.
If you’re staring at a quote for a big purchase and feeling torn, we can:
- Build a simple investment model
- Cost, finance, running costs
- Extra revenue or savings
- Payback period and return on investment
- Layer in the tax and funding options
- Capital allowances, tax relief timing
- Different finance structures and their impact on cash
- Give you a clear recommendation in plain English
- “Yes, this is a good move if XYZ.”
- Or “No, this doesn’t stack up yet, here’s what would need to change.”
If you’d like that kind of clarity before you sign on the dotted line, ask us about an “Investment Reality Check” session.
We’ll go through the numbers with you and help you decide, with confidence, whether that new kit is a growth engine, or an expensive headache waiting to happen.
