How to Reduce Overhead Costs in Your Limited Company (Without Cutting What Makes You Money)
Turnover is the same as last year, maybe a little higher. The team is busy and invoices are going out. Yet at the end of the month, there is less in the bank than there used to be.
Sound familiar?
If you are a UK limited company director and profit has stalled while sales have held up, the culprit is usually your overheads. This guide shows you how to reduce overhead costs in a structured way: what a pound saved is really worth after tax, where companies most often overspend, what you should never cut, and how to stop the creep coming back.
What Counts as an Overhead, and Why It Matters More Than You Think
Overheads are the costs of running your business that do not rise or fall with each sale: rent, software, insurance, accountancy, phone contracts, finance charges and the salaries of people who are not directly billable.
They are different from direct costs (or cost of sales), such as materials or subcontractors, which move up and down with the work you do.
The problem with overhead costs in a limited company is that they rarely arrive as one big decision. A £30 app here, an insurance renewal 8% higher there. Each feels small. Together, they reshape your profit.
Take an agency turning over £800,000 with a 40% gross margin, so £320,000 of gross profit. Two years ago overheads were £240,000, leaving £80,000 profit. Turnover has not moved, but overheads have drifted to £270,000. Profit is now £50,000.
A 12.5% rise in overheads has wiped out 37.5% of the profit. Nobody made a bad decision. Nobody made any decision at all.
What a £1 Saving Is Really Worth to Your Company After Tax
A pound saved on overheads adds a full pound to profit. A pound spent, even on something tax-deductible, only cuts your Corporation Tax bill by a fraction of it.
Corporation Tax is the tax your company pays on its profits. The current rates are 19% on profits up to £50,000, 25% above £250,000, and an effective 26.5% on each pound in between, because of marginal relief (the taper between the two rates).
So every £1 of deductible spend still leaves your company between 73.5p and 81p out of pocket.
The "it's tax deductible" trap
Say your company is heading for £120,000 of profit and you are tempted by a £6,000 equipment upgrade because "it will save tax".
It will: £1,590 at 26.5%. The company is still £4,410 worse off. If you genuinely need the kit, great. If the main reason is to save Corporation Tax, you have swapped £4,410 of profit for something you did not need.
Flip it. Cut £6,000 of overheads nobody uses, and the company keeps £4,410 more after tax. At a 10% net margin, you would need £60,000 of new sales to earn the same.
Where to Reduce Overhead Costs First: An Overhead Review Checklist
Pull 12 months of bank and credit card transactions, so you catch the annual renewals that never show up in a single month. List every recurring payment, then check the areas where UK limited companies most often overspend:
Software and subscriptions: duplicate tools, licences for leavers, auto renewing annual plans.
Insurance: policies rolling over without anyone checking price or cover.
Premises: unused space, and rent reviews or lease breaks that pass unnoticed.
Telecoms and energy: out of contract tariffs.
Card processing and bank charges: fees agreed when your volumes were lower.
Finance charges: overdraft interest, expensive loans, asset finance on kit you no longer use.
Professional services: retainers the business has outgrown.
Three forgotten tools at £35, £49 and £79 a month cost £1,956 a year. That is nearly £2,000 straight onto profit for the price of three cancellation emails.
What to do about it
Export 12 months of transactions from your bank, cards and bookkeeping software.
List each supplier, amount, renewal date, owner and whether you still need it.
Cancel anything nobody uses.
Renegotiate the rest rather than simply cancelling: ask for a better rate, get two comparison quotes and be ready to switch.
Diary every renewal 60 days ahead, so you negotiate before it rolls over.
Cutting Costs Without Cutting Value: What Not to Touch
Not every cost is waste. When you cut costs in a small business, protect what drives revenue or protects the business: marketing that demonstrably works, key staff, adequate insurance, and the tools that keep your team productive.
Here is why "demonstrably" matters. Say you spend £1,500 a month on marketing that brings in three jobs, each worth £2,000 of gross profit. Cut it and you save £18,000 a year but lose £72,000 of gross profit.
If you cannot tell which of your marketing works, fix that first. Not the budget.
What to do about it
For each higher cost, ask: does this help us win work, deliver work or protect the business?
Ask what would happen if you stopped it tomorrow. If the honest answer is "nothing", it goes.
Unsure about a marketing channel? Pause one at a time and watch enquiries.
Rising Staff Costs: Getting the Most From What You Already Pay
People are usually the biggest overhead, and they got more expensive in April 2025. Employer's National Insurance (NIC, the amount your company pays on top of salary) rose from 13.8% to 15%, and the threshold where it starts fell from £9,100 to £5,000. Both continue for 2026/27.
On a £30,000 salary, employer's NIC is now £3,750 a year (15% of the £25,000 above the threshold), up from £2,884.20. For a team of eight, that is £6,926.40 more a year with nobody getting a pay rise.
Employment Allowance lets eligible employers reduce their employer's NIC bill by up to £10,500 for 2026/27. It is not automatic: you claim it through your payroll software, and a company whose only employee above the threshold is a single director generally cannot claim it.
Before cutting people, look at how their time is used. A project manager on £45,000 costs you £51,000 with employer's NIC. If 8 hours of their 37.5 hour week goes on admin, roughly £10,880 of that cost is work software or a junior colleague could handle.
What to do about it
Check Employment Allowance is being claimed. If you were eligible and missed it, HMRC allows claims for the previous four tax years.
Work out the full cost of each role: salary, employer's NIC, pension and equipment.
When someone leaves, ask whether the role needs replacing in the same shape.
Treat regular overtime as a sign a process needs fixing.
Making Overhead Reviews Part of Your Monthly Management Accounts
Most owner-managers only see their business overheads properly once a year, when the annual accounts arrive. By then, the creep has had twelve months to settle in.
Management accounts are short monthly reports showing profit, costs and cash, so you can act while it still matters. The most useful number to track is overheads as a percentage of turnover.
On £1.2 million of turnover, overheads creeping from 30% to 33% means £36,000 less profit. Spotted in month two, that is a quick conversation. Spotted at year-end, it is a year of lost profit.
What to do about it
Group overheads into consistent categories in your bookkeeping software.
Set a monthly budget per category and compare actuals against it.
Track overheads as a percentage of turnover on a rolling 12-month basis.
Run a quick subscription sweep every quarter.
Bringing It All Together
Every cost in your business falls into one of four buckets:
Cut: Nobody uses it, or it adds nothing. Think forgotten subscriptions and licences for leavers.
Renegotiate: You need it, but you are overpaying. Think insurance, card fees, telecoms, energy and rent.
Restructure: You need it, but it is delivered the wrong way. Think senior staff doing admin, unused space and expensive finance.
Keep: It drives revenue or protects the business. Think marketing that works, key staff and adequate insurance.
Remember the maths: £1 saved is £1 of profit, while £1 spent to save tax still costs you at least 73.5p. Claim the allowances you are entitled to, and review overheads every month, not once a year.
Ready to Reduce Overhead Costs in Your Business?
If your profit has been shrinking while the business stays busy, you are not alone. It is one of the most common issues we help business owners resolve at J-Benn Finance.
Every business has a different cost base, and the right savings depend on how your company actually makes its money. Book a free discovery call and we will take a fresh look at your overheads, show you the quickest wins, and set your costs out clearly in monthly management accounts so the creep does not come back.
Find out more about how we work at J-Benn Finance.
