5 Structural Changes That Could Save Your Business £10,000+ Per Year

Most business owners spend the majority of their time focused on top-line revenue growth — understandably so. But for many limited companies and SMEs, the most significant financial improvements come not from selling more, but from restructuring how value flows through the business itself.

At ARX Limited, our structural reviews consistently identify patterns of inefficiency that, when corrected, can generate savings of £10,000, £20,000 or even more on an annual basis. Below, we outline five of the most common and impactful structural changes we identify.

1. Salary vs. Dividend Ratio

One of the most frequent discoveries in an ARX review is that a director is drawing a salary above the optimal threshold. A well-structured combination of minimum salary plus dividends can dramatically reduce the combined employer and employee National Insurance contributions, often saving £5,000–£8,000 per year for a single director.

The optimal ratio depends on several factors including personal circumstances, other income sources, and the company's profit level. This is not a one-size-fits-all solution, but in the majority of cases it represents an immediate and legal saving.

2. Company Car vs. Mileage Allowance

Many directors retain a company car arrangement without realising that the Benefit in Kind (BIK) tax charge — particularly on petrol and diesel vehicles — has risen significantly in recent years. In many cases, switching to a personal vehicle with a mileage allowance claim results in a notable saving.

The calculation varies depending on the vehicle's CO2 emissions, list price, and annual mileage, but the shift away from company car provision is a trend our reviews increasingly recommend.

3. Pension Contributions

Employer pension contributions are one of the most tax-efficient ways to extract profit from a limited company. They are fully deductible against Corporation Tax and not subject to National Insurance. Yet many business owners either contribute too little or structure contributions personally rather than through the company — missing significant tax advantages.

The annual pension allowance and carry-forward rules provide further opportunities that are often underutilised.

4. R&D Tax Credits

Eligibility for Research & Development tax relief is frequently underestimated. Businesses in technology, software, manufacturing, and professional services often qualify without realising it. An ARX review will assess whether an R&D claim could be made — potentially recovering significant amounts from HMRC.

The rules changed in April 2024, merging the SME and RDEC schemes into a new merged scheme. Understanding the new rules is critical to maximising any claim.

5. VAT Scheme Selection

Businesses below the turnover threshold for certain VAT schemes may be paying more VAT than necessary. The Flat Rate Scheme, for example, can be highly advantageous for service-based businesses with low costs. A simple calculation can determine whether a scheme change is beneficial.

Similarly, the Cash Accounting Scheme can improve cash flow by allowing businesses to account for VAT only when invoices are paid, rather than when they are issued.