10 Tax-Saving Strategies Every UK Business Owner Should Know (But Most Don’t)

Most business owners in the UK pay more tax than they need to.

Not because they’re doing something wrong – but because no one is helping them build a structure that works for them.

At Smith & Johnson, we work with ambitious founders to design proactive tax strategies tailored to their circumstances, spending habits and growth goals.

Here are 10 tax-saving strategies every Ltd company owner should know about – and how to make them work for you.

1. Use salary and dividends together to reduce income tax and NI

Taking all of your income as salary can be one of the most expensive ways to extract profit from your company. A more efficient structure usually involves: • A salary up to the personal allowance (£12,570) • Dividends up to the basic rate band • Potential pension contributions (see below) This approach minimises National Insurance and income tax while staying within HMRC rules. You get the income you need, with significantly less tax drag.

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2. Employ your spouse – if there’s a real role

If your spouse isn’t working and there’s a genuine opportunity for them to support your business (even part-time), you can pay them a salary and make use of their personal allowance. This has to be legitimate. At Smith & Johnson, we’ve helped clients bring their partner into the business as: • Admin support • Bookkeeping assistance • Marketing help • Project coordination

If they’re doing meaningful work, paying them through payroll is legal, efficient and valuable – for the business and your household.

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3. Make pension contributions through your company

Company-paid pension contributions are a powerful tool. They: • Reduce your Corporation Tax bill • Allow you to build personal wealth outside the business • Don’t trigger income tax or NI charges You don’t need to believe strongly in pensions to make this work. Many of our clients use it as a tax shelter for long-term wealth – not necessarily for retirement planning in the traditional sense.

The key: make contributions through the company, not personally.

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4. Claim business expenses properly – especially use of home

Thousands of pounds go unclaimed every year because business owners don’t track or understand allowable expenses. Two big ones we see missed: • Home office costs You can claim either the simplified flat rate method (£6/week) or a proportion of actual costs (mortgage interest, utilities, internet etc.). The latter requires more admin, but usually results in a much bigger claim. • Smaller recurring expenses Subscriptions, AI tools, software licences, business books, mileage – they all add up. Keep good records and claim what you’re entitled to.

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5. Use the Employment Allowance (and why it matters more from 2025/26)

From the 2025/26 tax year, employer National Insurance is going up for many companies – especially those paying directors £50k or more. If you qualify for the Employment Allowance, you can offset up to £5,000 of employer NI against your liability.

To qualify, you need more than one person on the payroll earning above the secondary threshold. A spouse with a real role, or another staff member, can make all the difference here.

This is becoming a much bigger lever for saving tax in the next few years.

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6. Time purchases to make full use of capital allowances

If you’re considering a major expense – like upgrading your computer setup or investing in equipment – it might be worth doing it before your financial year ends. Why? Because with Annual Investment Allowance (AIA), you can deduct the entire cost from your profits in that tax year.

Bonus tip:
Buy an electric car on hire purchase in the final month of your year.
You could claim the full cost under capital allowances, even though you’ve only paid the deposit. The vehicle must be new and meet HMRC’s criteria, but it’s one of the cleanest, most efficient ways to reduce your tax and fund a future asset.

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7. Use your Director’s Loan Account to straddle tax years

Many founders think the Director’s Loan Account is just for short-term borrowing. Used well, it’s a cash flow planning tool. You can: • Take less in one year (to reduce personal tax) • Then draw from the loan account in a future year when spending is higher • Use it to smooth tax exposure across multiple years

This is especially helpful when your spending habits vary – like buying a house deposit one year, then living more leanly the next. You extract cash in the year that suits you best.

It requires careful tracking, but done properly, it’s extremely tax-efficient.

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8. Split income across family shareholdings

If your spouse or adult children are shareholders in your company, they may be able to receive dividends – and make use of their personal tax bands and allowances. This can reduce the family’s total tax bill, rather than everything being taxed in your name alone.

There are important anti-avoidance rules to consider (like the settlements legislation), so it must be set up correctly and supported by real ownership. But when structured properly, it’s a powerful income-splitting tool.

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9. Don’t overlook software, subscriptions and AI tools

We’re seeing a growing wave of digital tools entering day-to-day operations – from CRMs and project management to AI content support and automated finance apps. If you’re using a tool primarily for business, it’s usually deductible.

Many founders forget to include tools they pay for personally (like Notion, Zoom, ChatGPT or Canva). These are valid business expenses if they support your work.

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10. Claim R&D relief if you’re building or improving tech or systems

You don’t have to wear a lab coat to claim R&D tax relief. If your business is spending time and money solving technical problems – building internal tools, developing custom software, or improving systems – you may qualify.

Even if the R&D work isn’t your product, it can still count. We’ve helped professional services firms, agencies and tech-lite companies claim back thousands through properly structured claims.

With HMRC cracking down on poor-quality submissions, getting expert support here is key.

Final Thoughts

You don’t need exotic tax schemes or aggressive strategies to save money. You just need a proactive accountant who understands your business, your goals and the tools available.

At Smith & Johnson, we build tax strategies that reflect your real-world needs:
• Income you can rely on
• Cash flow that feels stable
• Wealth that builds over time

If you’re earning a decent amount and your accountant isn’t doing any of this…

It might be time for a change.

📩 Get in touch for a quick quote – and find out what it would actually cost to work with someone who’s proactive, strategic, and on your side.