Ever feel like HMRC is sneakily dipping into your pocket while you’re not looking? The truth is, many UK business owners are unknowingly handing over “little gifts” to the taxman every single year. And not because they want to, simply because they’re missing easy tax-saving opportunities.
In this blog, we’re diving into five commonly missed tax moves that could be costing you thousands. These aren’t dodgy loopholes or aggressive schemes, just smart, legal strategies that help you stop the leaks and keep more of your hard-earned money.
Let’s plug those holes and put that cash back where it belongs, in your pocket.
1. Pay Yourself Properly: Salary, Interest, Dividends
The way you take money out of your business matters, a lot.
Here’s the breakdown:
Salary: This should be your first line of income. If you’ve got 1–3 employees, Employer’s Allowance might let you raise your salary without triggering Employer’s NI. The sweet spot? Somewhere just above the personal allowance threshold (as long as total salary stays under £80k).
Interest on Director’s Loan: If the company owes you money, you can charge it interest. That interest is deductible for corporation tax, and you’ll only pay income tax, no dividend tax or NI.
Dividends: Once your salary and any loan interest are sorted, dividends come in to top up your income to your “nice-to-live” number.
Done right, this trio can seriously reduce the overall tax you pay.
2. Max Out Pension Contributions
Pensions aren’t just for retirement, they’re one of the most exciting tax-saving tools around.
Why?
Contributions from the business are tax-deductible (hello 19–25% corp tax relief).
You don’t pay personal tax on them when the money goes in.
They grow tax-free until you draw them later.
Better still, the current annual limit is £60,000, and if you haven’t used up your allowance in the last 3 years, you might be able to contribute up to £180,000. That’s a huge opportunity if you’re sitting on excess cash.
3. Don’t Miss the “Little Stuff” That Adds Up
Here’s the thing, these small expenses might feel insignificant, but they compound quickly when ignored:
Mileage: 45p per mile for the first 10,000 miles in your personal car.
Use of Home as Office: Still working from home? You can claim an allowance.
Trivial Benefits: Up to £300/year per director, in £50 chunks, completely tax-deductible.
Ignore these and you’re potentially missing out on thousands every year, plus you might be paying dividend tax on money that should’ve been a business expense. Ouch.
4. Make Annual Investment Allowance (AIA) Work for You
Buying fixed assets for your business? Timing is everything.
Under AIA, many qualifying purchases (like equipment, not cars!) can be written off in full in the year of purchase. So if your year-end is approaching and you need gear, October to December could be prime buying time to offset your tax bill.
Just double-check the asset qualifies before you hit “buy.”
5. Involve Your Spouse The Right Way
If your spouse genuinely helps in the business, why not pay them?
For sole traders: Consider setting up a partnership.
For limited companies: Put them on payroll for the work they’re doing.
They could earn up to £12,570 tax-free using their own personal allowance. Even more, if they’re helping balance your higher-rate tax exposure. Just make sure the work and pay are legit and documented.
Final Thought: Don’t Let It Drip Away
The key takeaway? Most business owners aren’t being reckless, they’re just too busy to spot the leaks. But every missed £1,000 here and there adds up to £50,000+ over a decade.
And that’s real money, money you could invest, spend, or save.
So take a moment to review how you’re paying yourself, whether you’re using all your available allowances, and what you might be missing. These aren’t massive overhauls, they’re smart tweaks that could make a big impact over time.



