Are you tired of seeing too much of your hard-earned money go straight to the taxman?
You're not the only one. Running a small business in the UK comes with enough challenges without having to worry about whether you're paying more tax than you need to.
Many business owners miss out on legitimate ways to reduce their tax bill simply because they’re not aware of them or they assume it’s too complicated to manage.
Taxes are rarely straightforward, especially when your focus is on keeping your business running smoothly.
The deadlines, paperwork, and ever-changing rules can feel like a full-time job on their own. But that’s where using the right strategies makes all the difference.
Red Fish Accountancy helps business owners like you make sense of it all. We don’t believe in cutting corners, but we do believe in making every allowance, relief, and legal option work in your favour.
There are certain accounting tricks that consistently prove useful for small businesses.
They’re completely legal, backed by UK tax law, and often slip under HMRC’s radar—not because they’re sneaky, but because they’re smart.
These are tools that can reduce your tax liability, increase your take-home pay, and help you reinvest in your business with confidence.
We’ve pulled together seven strategies that we’ve seen work time and time again. Some are surprisingly simple.
Others might require a little setup. But all of them are designed to help you keep more of what you earn and make sure your business stays financially healthy for the long term.
One of the simplest and most effective ways to lower your tax bill is by claiming all allowable business expenses.
These are the everyday costs that come with running your business, and HMRC allows you to deduct them from your income before calculating your tax.
This could include things like office supplies, phone bills, professional subscriptions, business travel, and even part of your household bills if you work from home.
Far too often, small business owners either forget to claim certain expenses or don't realise what's actually eligible.
According to research by FreeAgent, nearly 40 percent of UK small business owners admit they are unsure about which expenses they can legally claim. That uncertainty can lead to missed opportunities and higher tax bills.
Let’s say you work from a home office. You can claim a portion of your electricity, heating, broadband, and even rent or mortgage interest, based on the space and time you use for business.
It might not seem like much, but over the course of a year, those small amounts can really add up.
Keeping accurate records and saving every receipt is essential. Not only does this help you claim what you’re entitled to, but it also protects you in case HMRC ever asks for proof.
Using accounting software or working with an accountant can make this much easier.
Red Fish Accountancy helps our clients stay organised and ensure they’re not missing out on perfectly legal claims that could ease the burden when tax time rolls around.
Maximising your expenses isn’t about pushing boundaries.
It’s about being thorough, staying informed, and using the tax rules to your advantage — the way they were designed to be used.
The Annual Investment Allowance, or AIA, is a powerful tool that lets businesses deduct the full value of qualifying items from their profits before tax.
These items usually include things like equipment, tools, machinery, and business vehicles. In other words, if you invest in something that helps run your business, you can usually claim back the entire cost against your taxable income, all within the same financial year.
This approach gives you two clear advantages.
First, it encourages you to invest in your business by making upgrades or replacing outdated tools without having to spread the tax relief over several years.
Second, it lowers your tax bill in the year of purchase, helping to ease financial pressure.
As of 2023, the AIA limit remains set at £1 million, which is a significant amount and more than enough to cover the average annual capital expenditure for most small and medium-sized businesses.
According to HMRC data, small businesses that make use of AIA tend to be more confident about investing in infrastructure and scaling operations, knowing they can immediately claim relief.
Let’s say you buy a piece of machinery for £25,000. Under standard capital allowance rules, you might only claim a small percentage each year. But with AIA, you can deduct the full £25,000 from your profit in the same tax year, which can lead to real savings.
It is important to note that not every purchase qualifies. Land, buildings and cars are usually excluded, so it is wise to get guidance before making big decisions.
Sharing income with your spouse or civil partner can be a smart and completely legal way to reduce the amount of tax your household pays.
If your partner is in a lower income bracket or has unused personal tax allowances, shifting some of your business income to them can result in significant savings.
This approach is particularly useful for small business owners who have flexibility in how they structure their income.
For example, if you're a sole trader who’s incorporated their business as a limited company, you can pay your spouse a reasonable salary for helping with tasks such as admin, bookkeeping, or customer service.
As long as the payment is genuine and reflects actual work done, HMRC will accept it as a deductible business expense.
That means the business gets tax relief on the salary paid and your household income is spread more efficiently across two personal allowances.
You can also issue dividends if your spouse is a shareholder in the business. Since dividends are taxed at a lower rate than salaries and are not subject to National Insurance, this method can be very effective.
According to a 2022 report by the Office for National Statistics, couples who share income efficiently often pay several thousand pounds less in tax each year compared to those who do not.
The Marriage Allowance is another option. It lets one spouse transfer up to 10 percent of their personal allowance to the other, provided they are not using it and the receiving spouse is a basic rate taxpayer.
While this results in a smaller tax saving compared to full income splitting, it is still worth considering and takes little effort to apply for.
Research and Development tax credits are one of the most underused tax reliefs available to UK small businesses, even though the financial benefits can be substantial.
These credits were created to encourage innovation across all industries.
If your business is working on developing new products, improving internal processes, or enhancing services, you might be eligible to claim, even if the project is not fully successful.
Many people assume that R&D tax credits only apply to tech firms or scientific labs.
That is simply not true. Businesses in fields like construction, manufacturing, food production, engineering, and software development can all qualify.
If you are solving a problem that involves technical uncertainty, testing new ideas, or trying to improve how something works, then there is a strong chance that HMRC will see it as eligible research and development activity.
According to recent data from HMRC, more than 89,000 businesses across the UK claimed R&D tax relief in the 2021 to 2022 tax year.
The average claim under the SME scheme was around £55,000, which is a meaningful amount for a small business looking to invest in its team, equipment, or growth. Still, many eligible companies do not claim at all, often because they believe the process is too complex or assume they will not qualify.
There are two R&D schemes available.
The SME scheme is the one most small businesses fall under, and it allows companies to either reduce their Corporation Tax bill or, if they are not making a profit, receive a cash credit.
In some cases, the relief can be worth up to 14.5 percent of qualifying costs, which adds up quickly when you factor in wages, materials, and software used in the project.
Red Fish Accountancy supports clients through every step of the claims process.
That includes identifying which projects meet HMRC’s criteria, gathering the right records, and preparing a clear submission that stands up to scrutiny.
A detailed and accurate claim not only increases your chance of success but also reduces the risk of delays or queries.
If your team is working to solve technical problems, test new solutions, or improve how things are done, you should not overlook the value of R&D tax credits.
This is not just a tax break for big firms with research labs. It is a practical incentive that helps everyday businesses stay competitive, grow stronger, and invest with more confidence.
Paying yourself as a business owner is not just about drawing money from your company.
It is about doing it in a way that keeps your business healthy and your personal tax bill as low as legally possible.
For many small business owners running limited companies, a common strategy involves taking a modest salary and topping it up with dividends.
This combination can be far more tax-efficient than relying on a full salary alone.
Salaries are subject to both Income Tax and National Insurance contributions. This includes contributions from both the employee and the employer.
Dividends, on the other hand, are taxed at a lower rate and are not subject to National Insurance at all.
This makes them a highly attractive option for directors and shareholders looking to extract profit from their company without losing more than necessary to taxes.
The government currently allows a personal allowance of £12,570, which means you can take that much as salary without paying Income Tax.
On top of that, dividend income comes with its own tax advantages. Although the dividend allowance has been reduced to £500 for the current tax year, the tax rates for dividends remain lower than those for standard income.
For example, the basic rate for dividend tax is 8.75 percent, compared to 20 percent for income.
Higher rate taxpayers pay 33.75 percent on dividends, still lower than the 40 percent income tax rate. These differences add up quickly, especially if you are drawing a reasonable profit from your business.
Let’s look at a simple example. Imagine your company makes enough profit to pay you £40,000.
If you took the entire amount as salary, you would pay Income Tax and both employee and employer National Insurance contributions.
If instead you took £12,570 as salary and the remaining £27,430 as dividends, your overall tax bill would be significantly lower.
You would avoid National Insurance entirely on the dividend portion and pay a reduced tax rate on that income.
The Institute for Fiscal Studies has published several studies highlighting how dividend income is more tax-efficient than employment income, which is part of why this method is so popular among company directors.
However, it is important to follow the correct procedures.
Dividends can only be paid from company profits after Corporation Tax has been accounted for. You also need to document dividend payments correctly, with board meeting minutes and dividend vouchers. HMRC does not look kindly on informal or undocumented dividend withdrawals.
For small businesses that are VAT registered, managing VAT returns can become time consuming and often confusing.
The Flat Rate VAT Scheme was designed by HMRC to make things easier for smaller businesses and, in many cases, it can also lead to real savings.
Instead of calculating VAT on every single purchase and sale, businesses using this scheme pay a fixed percentage of their total turnover to HMRC.
This approach simplifies bookkeeping and makes it easier to predict how much VAT you owe each quarter.
The flat rate you pay depends on your type of business.
For example, a management consultancy business might pay a flat rate of 14.5 percent, while a catering business might pay 12.5 percent.
You still charge your customers the standard VAT rate, usually 20 percent, but you payHMRC the fixed rate based on your gross turnover. The difference between what you charge and what you pay is what you keep, which is where the potential savings come in.
This scheme works best for businesses that have relatively low VATable expenses. For instance, if you do not buy a lot of stock or equipment, you may not lose much by giving up the right to reclaim VAT on purchases.
In exchange, you get a much simpler system that requires less admin and provides more certainty around cash flow.
You also get a one percent discount on your flat rate for the first year of joining the scheme, which can make a noticeable difference in your first twelve months.
According to a survey conducted by the Federation of Small Businesses, many small firms report saving both time and money through the Flat Rate VAT Scheme.
However, the same research also shows that understanding whether the scheme is right for a particular business can be a challenge, especially without proper advice.
Buying a company car can come with financial advantages, especially when it's a hybrid, low-emission or fully electric model.
For businesses, this move isn't just about convenience or brand image—it can also lead to tax savings.
If the vehicle is used only for business purposes, you may be eligible to deduct the full cost from your taxable profits.
This can significantly lower your company's overall tax bill. One of the key benefits lies in capital allowances.
Businesses can write off the cost of certain vehicles over time, but low-emission cars often qualify for enhanced rates.
For example electric vehicles can qualify for a 100 percent first-year allowance. That means you can deduct the full purchase price in the first year, rather than spreading it out over several years.
A UK government report on company car taxation highlighted that tax policy has increasingly favoured electric and low-emission vehicles, leading to measurable savings for companies that made the switch.
The same trend is seen in other regions, including parts of the US and EU, where incentives for environmentally friendly vehicles have been introduced as part of broader sustainability goals.
That said, to claim the maximum benefits, you need to ensure the car is used exclusively for business.
Mixing in personal use can change the tax treatment, sometimes triggering additional liabilities such as benefit-in-kind taxes.
Choosing the right vehicle and documenting its usage carefully can help you stay compliant while maximising your tax deductions.
Consulting an accountant is always a smart move when making this kind of investment decision.
Running a small business means constantly balancing growth with compliance. These seven accounting tricks are not loopholes or shady tactics.
They are smart, legal ways to take full advantage of what the system already allows. HMRC may not love them, but they are well within your rights as a business owner.
The key is applying them correctly and consistently. That is where expert guidance comes in.
Red Fish Accountancy works closely with small businesses to make sure every opportunity is explored and every move is safe.
When your finances are handled with care and precision, you are not just reducing your tax bill—you are building a stronger, more stable business.
If you want to keep more of what you earn and stay on the right side of the rules, get in touch with Red Fish Accountancy.
The sooner you take control of your numbers, the better your business will run.
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