If you’re a company director, you’ll likely need to complete a Self Assessment tax return each year. But what exactly does that mean, why do you need to do it, and how can you make sure you get it right? In this guide, we’ll walk you through everything you need to know about Self Assessment for directors - including deadlines, what to include, and how to avoid common mistakes. Do Company Directors Need to File a Self Assessment Tax Return? In most cases, yes. HMRC requires a Self Assessment tax return if you receive income that hasn’t already been taxed at source. As a company director, you’re usually paid in a combination of: A salary through PAYE, and Dividends from company profits. Even if you take a small salary below the tax threshold, your dividends could still make you liable for income tax so HMRC expects a return to be filed. You must file a tax return if: You’re a company director and you receive dividends or other income outside of PAYE. You earn more than £10,000 in dividends during the tax year. You have untaxed income such as rental income, investments, or freelance work. When Is the Self Assessment Deadline for Directors? The deadlines are the same for everyone who files a Self Assessment: 5 October: Register for Self Assessment (if you haven’t filed before). 31 October: Deadline for paper returns (rarely used now). 31 January: Deadline for online filing and for paying any tax owed. The tax year runs from 6 April to 5 April, so your 2024/25 tax return will be due by 31 January 2026. Missing the deadline can lead to penalties, even if you don’t owe any tax, so it’s best not to leave it to the last minute. What Should Directors Include in Their Tax Return? You’ll need to declare all your income for the year, including: Salary paid via PAYE Dividends from your company Interest from savings or investments Rental income (if applicable) Any other untaxed income You can also claim personal allowable expenses and reliefs, such as: Charitable donations under Gift Aid Pension contributions Certain professional fees or subscriptions Your company accounts will already cover business income and expenses, but your Self Assessment focuses on your personal income and tax liabilities. How Much Tax Will I Pay as a Director? The tax rates and thresholds are the same for everyone. You'll pay: Income Tax on your salary and dividends, and National Insurance on your salary (if above the threshold). Your salary will be taxed via PAYE, but dividends and other income are taxed through your Self Assessment. What Happens If You Don’t File? HMRC can issue penalties for late filing, even if you don't owe any tax. There are also late payment penalties and interest charges if you pay your tax late. How an Accountant Can Help Completing your Self Assessment can feel daunting, especially if you’re juggling payroll, VAT, and company accounts too. At CJL Accountancy, we help directors file accurately and on time, ensuring: ✅ All income and dividends are correctly reported ✅ You don’t overpay tax ✅ You meet every deadline stress-free We also offer proactive tax planning to help you structure your income in the most tax-efficient way for the future. Common Questions About Self Assessment for Directors Q: Do all directors need to file a tax return? A: No. If you only received salary and benefits then that will be taxed through PAYE, but anything else will likely need a tax return. Q: Can HMRC automatically collect my tax through PAYE? A: Only for your salary - dividends and other income must go through Self Assessment. Q: When should I register? A: By 5 October following the end of the tax year when you became a director or started receiving dividends. But if you've missed that for 2024/25, register as soon as possible. Q: What if my accountant files on my behalf? A: You’re still legally responsible for ensuring it’s correct and submitted on time, but a qualified accountant makes the process much smoother. Need Help Filing Your Director’s Tax Return? At CJL Accountancy, we specialise in helping limited company directors with Self Assessment, dividends, and year-end planning. We’ll handle the figures so you can focus on running your business. 📩 Get in touch today

Running your own limited company gives you flexibility in how you pay yourself, but with that freedom comes responsibility. Two of the most common ways directors take money out of their companies are through a director’s loan account (DLA) and dividends. While both can seem similar on the surface - money leaving the company - there are big differences in how they work, and getting it wrong can cost you dearly. In this blog, we’ll break down what DLAs and dividends are, the risks of mixing them up, and how to avoid common pitfalls like overdrawn accounts and unexpected tax charges. What is a Director’s Loan Account (DLA)? A director’s loan account is simply a record of money that moves between you (the director) and your company, outside of salary and dividends. For example: You lend the company £5,000 to cover cash flow - this goes into your DLA as a credit. You take £2,000 out of the company for personal use, not as salary or dividends - this goes into your DLA as a debit. At any time, your DLA shows whether the company owes you money (in credit) or you owe the company money (overdrawn). What are Dividends? Dividends are payments made to shareholders out of company profits after tax. Unlike loans, they don’t need to be repaid. However, dividends can only legally be paid if the company has enough retained profits. For example: If your company made £30,000 profit last year (after Corporation Tax), you can vote to distribute part of that profit as dividends. If the company has no retained profit, dividends cannot be paid - even if there’s cash in the bank. Problems When Taking Money the Wrong Way Here’s where things often go wrong. Many directors treat the company bank account like their own and withdraw cash when they need it, or pay for personal expenditure via the company bank account. But if those withdrawals aren’t properly declared as dividends or salary, they’ll sit in the DLA instead. That’s not necessarily a problem - unless your DLA becomes overdrawn. Overdrawn DLAs and the Dreaded S455 Tax Charge An overdrawn DLA means you owe money to your company. HMRC doesn’t like this, because in effect you’ve borrowed money from your company without paying tax on it. If your DLA is still overdrawn nine months after your company’s year-end, the company has to pay a special tax charge called Section 455 (S455) tax - currently 33.75% of the outstanding balance. For example: You withdraw £10,000 from the company in July. The company year-end is 31 December. If that £10,000 hasn’t been repaid by the following 30 September, the company owes £3,375 in S455 tax. The good news? If you repay the loan later, the S455 tax can eventually be reclaimed - but only after a long delay, which can seriously affect cash flow. The Benefit in Kind for Loans Over £10,000 If your director’s loan exceeds £10,000 at any point in the tax year, HMRC treats it as a benefit in kind - because you’ve effectively received an interest-free (or low-interest) loan from your company. That means: You’ll pay income tax on the notional interest you “should” have paid. The company must also pay Class 1A National Insurance on the benefit. The charge is calculated using HMRC’s official interest rate. To avoid this, you can either repay the loan quickly or pay the company interest at least equal to the official rate. How to Avoid DLA Problems The key is good bookkeeping and forward planning. Here are our top tips: ✅ Plan your salary and dividends in advance so you know what you can take. ✅ Check profits before declaring dividends - never rely just on bank balance. ✅ Keep your DLA under control by recording every transaction accurately. ✅ Repay loans quickly if you do take money out temporarily. ✅ Work with an accountant who can guide you on the most tax-efficient way to withdraw money. Why This Matters Mixing up DLAs and dividends can lead to: Unexpected personal and company tax bills. Cash flow headaches for your business. By understanding the difference and planning ahead, you can take money out of your company with confidence - and avoid nasty surprises. Need Help With Your Director’s Loan Account? At CJL Accountancy, we work with limited company owners every day to make sure they’re paying themselves in the most tax-efficient way. Whether you’re worried about an overdrawn DLA, unsure if you can declare dividends, or want to avoid the S455 tax trap, we can help. 📞 Get in touch today for clear, friendly advice tailored to your business.

Whether you own one rental property or a portfolio, understanding how to complete your tax return as a landlord can save you money, stress, and potential penalties. In this guide, we’ll cover what landlords need to include on a tax return, key deadlines, allowable expenses, and how to make the process easier. Who Needs to Complete a Tax Return as a Landlord? You need to complete a Self Assessment tax return if you earn income from property. That includes: Renting out a residential or commercial property in the UK. Letting out a room in your own home (see Rent-A-Room below). Earning income from overseas property. Holiday lets, including Airbnb properties. When Do Landlords Need to File a Tax Return? The key tax return deadlines for landlords are: 5 October - register for Self Assessment if this is your first year as a landlord (don't panic if you've missed it this year, just register as soon as you can). 31 October - paper tax return filing deadline (rarely used). 31 January - online tax return and payment deadline for the previous tax year. For example, for the 2024/25 tax year (ending 5 April 2025), your tax return and any tax owed must be submitted by 31 January 2026. Missing these deadlines can result in automatic penalties and interest, even if you owe no tax. What Income Do You Need to Declare? You’ll need to declare all rental income, including: Monthly rent payments. Any non-refundable deposits kept. Income from additional services (e.g. cleaning or parking). HMRC expects full disclosure, so it’s important to maintain accurate records of all property income and related costs throughout the year. What Expenses Can Landlords Claim? Claiming allowable expenses reduces your taxable profit - and therefore your tax bill. Common allowable expenses include: Letting agent fees Accountancy fees Repairs and maintenance (not improvements) Insurance Council tax, utilities, and service charges (if paid by you) Advertising and tenant reference checks You can also claim a 20% tax relief on mortgage interest paid. Make sure you keep receipts and records for at least six years in case HMRC asks for evidence. Details of improvements made should be kept for the future as it may be able to claimed when you sell the property. Rent-A-Room If you rent a room in your house where the tenants share facilities with you, you may be able to claim rent-a-room relief. For 2024/25 it's up to £7,500 of gross rental income, or £3,750 each if the income is joint. Any income in excess of this is taxable. Making Tax Digital (MTD) for Landlords Making Tax Digital for Income Tax is due to affect landlords from April 2026. If your gross rental income exceeds £50,000, you’ll need to: Keep digital records of property income and expenses. Submit quarterly updates to HMRC. File a final year-end declaration digitally. Landlords earning between £30,000-£50,000 will follow in April 2027, and £20,000-£30,000 in April 2028. Getting used to digital record-keeping now will make the transition much smoother. Can HMRC Find Out If You Don’t Declare Rental Income? Yes - and increasingly easily. HMRC use data from letting agents, Airbnb, the Land Registry, mortgage providers, and even online platforms to identify landlords who haven’t declared rental income. HMRC can go back several years, charge penalties and interest, and in some cases issue higher fines for deliberate non-disclosure. However, if you come forward voluntarily before HMRC contacts you, you’ll usually receive lower penalties and can settle the tax owed under more favourable terms. If you’re unsure whether you’ve declared everything correctly, it’s always best to get professional advice before HMRC does. Don't forget to double check who owns the property (there are often cases where one person in a couple has declared all income even though it's jointly owned). People also often mistakenly think they don't need to declare because their mortgage payment means they have no profit, but as it's only a 20% tax relief on the interest, not the whole repayment, there can be a taxable profit. How to Make Your Landlord Tax Return Easier Completing your own tax return can be time-consuming and confusing - especially with changing tax rules. Here are a few ways to simplify the process: Track income and expenses monthly instead of leaving it until the end of the year. Use accounting software that’s MTD-compatible. Get professional help - an accountant can identify allowable expenses, ensure accuracy, and help you plan ahead for tax changes. Need Help with Your Landlord Tax Return? At CJL Accountancy, we make tax simple. Whether you’re a first-time landlord or managing multiple properties, we’ll handle your Self Assessment, bookkeeping, and tax planning - ensuring you stay compliant and never pay more tax than you should. 📞 Get in touch to find out how we can help make your landlord accounting stress-free.

At CJL Accountancy, we regularly meet directors who aren’t fully aware of their wider duties. Understanding these responsibilities isn’t just about avoiding penalties, it’s about protecting your business, your reputation, and even your personal finances. Here’s what you legally need to do as a company director, and some common pitfalls to avoid. 1. Keep and Maintain Proper Company Records By law, directors must make sure the company keeps accurate and up-to-date records. This includes: Accounting records – income, expenses, assets, liabilities, and supporting documents. Statutory registers – shareholders, directors, PSCs (people with significant control). Minutes of meetings and decisions – especially for major business decisions. ⚠️ Poor record-keeping makes it harder to spot financial risks and could trigger penalties. For example, if records aren’t kept for at least six years, the company could face fines or legal action. 2. Act in the Company’s Best Interests Directors have a legal duty to put the company’s success first. This means: Acting in good faith and making fair decisions. Avoiding conflicts of interest (e.g. putting personal benefit ahead of the company). Considering the impact of decisions on employees, creditors, and shareholders. ⚠️ Treating the company bank account like your own can cause issues with paying HMRC, employees or creditors. There are also tax implications to taking loans from your company. 3. Keep Companies House Records Up to Date Directors are responsible for ensuring company information is correct and submitted on time, including: Confirmation statement (annually) Changes to directors, shareholders, or registered office Share allotments or transfers ⚠️ Forgetting to file updates can lead to fines or even the company being struck off the register. 4. Personal Liability Risks While limited companies are designed to protect directors, failing in your duties can remove that protection. In cases of wrongful trading or fraud, you could be held personally liable. This is why good governance - keeping proper records, acting responsibly, and filing on time - is essential. Beyond the Basics: More Responsibilities Under the Companies Act The above are just a few of the key responsibilities for directors. Under the Companies Act 2006, there are wider statutory duties too. Failing to meet these duties can have serious consequences - from fines and disqualification to personal liability in extreme cases. Final Thoughts: You’re More Than Just a Box-Ticker Being a company director is about more than filing accounts. It’s about protecting your business, running it responsibly, and staying compliant with the law. At CJL Accountancy, we don’t just tick boxes. We advise directors on the practical side of running a company - helping you avoid tax pitfalls, improve cashflow, and grow with confidence. 👉 If you’d like a proactive accountant who supports your business beyond the numbers, get in touch with CJL Accountancy today .

Running your own business is exciting - but it also comes with responsibility. One of the biggest challenges many small business owners face is staying on top of their taxes. Over the years, we’ve helped clients untangle tax messes, and the same mistakes crop up time and again. Here are the most common tax pitfalls we see – and how you can avoid them. 1. Not Saving for Tax When you’re just starting out, it’s tempting to think of every pound earned as “yours”, but HMRC will want its share. If you don’t put money aside as you go, you could be in for a nasty surprise when your tax bill arrives. How to avoid it: Set up a separate savings account and move a percentage of every payment you receive straight into it. As a rule of thumb, 20-30% works for most small businesses, but it depends on your circumstances. 2. Taking Drawings Instead of Salary/Dividends Many limited company owners don’t realise that simply “taking money out” of the business isn’t the same as being paid properly. Taking drawings can lead to tax inefficiencies or even an overdrawn director’s loan account – with an unexpected tax charge (the dreaded S455). How to avoid it: Speak to your accountant about the most tax-efficient way to pay yourself – usually a mix of salary and dividends. That way you’ll stay compliant and avoid paying more tax than necessary. Note that if you’re self-employed then the post-tax profit is yours and can be withdrawn. 3. Mixing Business and Personal Finances Using your personal bank account for business transactions might feel convenient at the start but it quickly becomes a bookkeeping nightmare. It’s easy to lose track of income and expenses, and HMRC may question the accuracy of your records. How to avoid it: Open a separate business bank account from day one. It makes bookkeeping cleaner, tax returns easier, and gives you a clearer picture of how your business is really performing. This is even more important for a limited company, the bank account must be in the company name. 4. Registering for VAT Too Late Some business owners don’t realise they need to register for VAT once their turnover passes the threshold (currently £90,000). Missing this deadline can lead to backdated VAT bills, interest and penalties – a costly mistake. How to avoid it: Track your rolling 12-month turnover. If you’re getting close to the threshold, speak to your accountant early. Sometimes it even makes sense to register voluntarily before you’re required to. 5. Missing Out on Allowable Expenses Too many business owners pay more tax than they should because they don’t claim all the expenses they’re entitled to. From home office costs to business mileage, small savings add up. How to avoid it: Keep detailed records and receipts throughout the year. If you’re unsure what you can and can’t claim, ask your accountant – we’d rather help you claim correctly than see you overpay. Final Thoughts Tax mistakes are easy to make - especially when you’re juggling everything else that comes with running a business. But with a bit of planning, good record-keeping, and the right advice, you can avoid the most common pitfalls. At CJL Accountancy, we’ve helped countless small business owners get back on track after making these mistakes – but we’d much rather help you avoid them in the first place. 👉 If you’re worried about tax or just want peace of mind that you’re doing things the right way, get in touch today .

If you’ve recently started earning income outside of PAYE, the clock is ticking. HMRC requires you to register for Self-Assessment by 5 October 2025 if you need to file a tax return for the 2024/25 tax year. Missing this deadline could lead to penalties, interest, and unnecessary stress. At CJL Accountancy, we help individuals and business owners stay compliant and avoid last-minute panic. Here’s what you need to know. Who Needs to Register for Self-Assessment? You may need to register if you had untaxed income during the 2024/25 tax year (6 April 2024 – 5 April 2025). This can include: Self-employed businesses Partners in a business partnership Company directors who receive dividends or other untaxed income Landlords earning rental income Investors with taxable savings, dividends, or capital gains Side hustlers and content creators making money from Etsy, YouTube, TikTok, or freelancing If HMRC doesn’t already know about your new income, you must tell them by registering for Self-Assessment. Why Is the 5 October Deadline Important? This deadline isn’t when you have to file or pay your tax, that comes later. Instead, it’s about telling HMRC you need to complete a tax return. 5 October 2025 – Deadline to register if you’re new to Self-Assessment for 2024/25. 31 January 2026 – Deadline to file your online return and pay any tax due. By registering on time, you’ll avoid HMRC penalties and get your Unique Taxpayer Reference (UTR) in plenty of time, which you need to file your return. How to Register for Self-Assessment The process depends on your situation: Self-employed – Register using form CWF1. Not self-employed (e.g., landlords, investors, directors) – Register using form SA1. Partnerships – Both the partnership and individual partners must register separately. You can register online via HMRC’s website, or we can handle the process for you. What Happens If You Miss the Deadline? If you fail to register by 5 October, HMRC can issue penalties for late notification. Acting early is the easiest way to stay compliant. How CJL Accountancy Can Help At CJL Accountancy, we specialise in helping people and small businesses stay on top of their tax obligations. We can: Register you for Self-Assessment File your return accurately and on time Ensure you claim all allowable expenses Help you plan for future tax bills so there are no surprises Don’t Leave It Too Late If you started earning new income in the 2024/25 tax year, remember: the deadline to register is 5 October 2025. The sooner you act, the smoother your tax return process will be. 📩 Get in touch with CJL Accountancy today , and let us take the stress out of Self-Assessment.

Over the past few years, side hustles have become more popular than ever. Whether it’s selling art at local markets, reselling clothes on Vinted, or monetising a blog or YouTube channel, thousands of people across the UK are making extra income outside of their 9-to-5 jobs. But when does a hobby tip over into a business in the eyes of HMRC, and what does that mean for tax? Let’s break it down. The Key Test: The “Badges of Trade” HMRC doesn’t have a single rule that says: “This is a business.” Instead, they look at something called the badges of trade - a set of indicators used to decide whether you’re just enjoying a hobby, or whether you’re carrying on a trade. Some of the main badges of trade include: Profit motive – Are you trying to make money, or just covering your costs? Frequency of transactions – Are you making occasional sales, or selling regularly? Organisation – Do you advertise, have branding, or run it like a business? Modifications – Do you change or improve items before selling them (e.g. buying second-hand clothes, then reselling at a markup)? Nature of the asset – Was what you sold originally bought to keep or to sell? No single badge proves you’re in business, but taken together they paint a picture. What HMRC Looks For HMRC will look beyond the label you put on your activity. Calling it a “hobby” doesn’t mean it won’t be taxed if you’re making money in a structured way. Some common scenarios: Selling art or crafts – If you sell the occasional canvas or crochet piece for pocket money, it may be a hobby. But if you regularly list items on Etsy, take commissions, or market yourself on Instagram, HMRC is likely to see this as a business. Reselling clothes online – Clearing out your wardrobe is fine. But if you buy clothes with the intention of reselling for profit (e.g. thrifting or bulk buying trainers), that looks like trading. Monetising a blog or YouTube channel – Once you start receiving ad revenue, affiliate income, or sponsorships, HMRC will see this as taxable business income. Landlords and property income – Even if you only rent out one property, it still counts as taxable income and must be declared. The Tax Implications If your hobby crosses into business territory, you’ll need to: Register with HMRC as self-employed (even if you also have a job). Complete a Self Assessment tax return each year. Keep accurate records of income and expenses. Pay tax and National Insurance on profits above the personal allowance. The good news is that there are some reliefs: Trading allowance – The first £1,000 of trading income (gross income, not profit) is tax-free. Allowable expenses – You can deduct costs like materials, platform fees, and a proportion of home office costs. Real-World Examples Hobby: Lucy paints in her spare time and occasionally sells a painting for £50 to friends. She doesn't advertise her paintings. No tax return needed. Business: Tom resells vintage clothes on Depop every weekend, buying items to re-sell at a profit, and keeping track of his profit margins. HMRC will expect him to register as self-employed. Side Hustle Scaling Up: Sarah runs a blog. At first, it was just a creative outlet, but now she earns £200 a month from affiliate links. She needs to declare this income to HMRC. Final Thoughts If you’re earning money - even a small amount - from a hobby, it’s worth asking: Would HMRC see this as trading? Failing to declare taxable income could lead to penalties, but getting it right from the start is straightforward with the right advice. At CJL Accountancy, we help side hustlers, content creators, and small businesses understand their tax obligations, claim the right expenses, and stay compliant without stress. 📩 Need help figuring out if your hobby is a business? Get in touch with us today for friendly, expert advice.

Cryptocurrency has moved from a niche interest to a mainstream topic. Whether you’re buying Bitcoin for the first time, dabbling in Ethereum, or trading NFTs, you’ll quickly realise there’s one thing you can’t ignore: tax. In the UK, HMRC treats crypto very differently from traditional currency - and not knowing the rules can land you with unexpected tax bills (and penalties). This beginner’s guide will walk you through the basics of crypto tax in the UK, so you can stay on the right side of the law. What counts as crypto for UK tax purposes? HMRC refers to cryptocurrency as cryptoassets. This includes: Exchange tokens (e.g. Bitcoin, Ethereum, Litecoin) Utility tokens (tokens that let you access a service) Security tokens (tokens representing ownership or debt) Non-fungible tokens (NFTs) If you own or trade any of these, you may have a tax liability. Is crypto taxed in the UK? Yes - but not in the way you might think. HMRC does not treat crypto as money or currency. Instead, it’s treated more like a form of property or investment. The two main UK taxes that might apply to your crypto are: Capital Gains Tax (CGT) – When you sell, swap, spend, or gift crypto. Income Tax – When you’re paid in crypto or receive it through mining, staking, or airdrops. Capital Gains Tax on crypto If you sell or dispose of crypto, you may need to pay Capital Gains Tax. This includes: Selling crypto for GBP or another currency Swapping one crypto for another Using crypto to pay for goods or services Giving crypto away (other than to a spouse or civil partner) You only pay CGT on your profits, not the total value. There's a tax free CGT allowance (£3,000 for 2025/26) and you'll pay tax on any gains above this. You can also claim your crypto losses to be used against other capital gains. Example: You bought 1 Bitcoin for £15,000 You sold it for £25,000 Profit = £10,000 Rates: 18% for basic rate taxpayers 24% for higher and additional rate taxpayers Income Tax on crypto You may need to pay Income Tax if you receive crypto as: Salary or payment for services Mining or staking rewards Airdrops (if received in exchange for doing something, like promoting a project) In these cases, the value of the crypto at the time you receive it is added to your income and you'll pay income tax and national insurance on your profits. How HMRC knows about your crypto HMRC has agreements with major UK crypto exchanges and can request customer data. If you think they won’t find out, think again - it’s safer (and cheaper) to declare your gains correctly from the start. Record keeping for crypto tax HMRC expects detailed records for every crypto transaction, including: Date of transaction Type of asset Number of units Value in GBP at the time Transaction fees What the transaction was for (sale, swap, etc.) Using crypto tax software (like Koinly or CoinTracker) can save hours of admin. Do you have to pay tax if you haven’t cashed out? Yes - in some cases. Even if you haven’t converted crypto to GBP, swapping one coin for another or using it to make a purchase can trigger a taxable event. How to report crypto on your tax return If you have taxable crypto gains or income: Register for Self Assessment (if you’re not already registered). Complete the Capital Gains section and/or Income section of your return. Pay any tax due by the deadline (31 January following the end of the tax year). Common crypto tax mistakes to avoid Thinking “it’s not real money” so it’s not taxable Forgetting that swaps count as disposals Ignoring small gains that push you over the allowance Not keeping records from the start Missing the tax return deadline Final thoughts If you're investing in crypto then you need to understand your tax obligations as it will save you stress, fines, and unwanted surprises later on. If you’re unsure, speak to a tax professional who understands crypto. FAQs: Crypto Q: Do I pay tax when I buy crypto? A: No. Buying crypto isn’t taxable — tax applies when you dispose of it. Q: What’s the CGT allowance for 2025/26? £3,000 per person. Q: Do I pay tax on crypto losses? You can offset crypto losses against gains to reduce your tax bill - but you must report them to HMRC. Q: Can HMRC track my crypto? Yes. They can request information from UK-based exchanges and international partners.

HMRC’s Campaign: A New Enforcement Focus HMRC has recently announced a campaign aimed at Self-Assessment taxpayers (sole traders, partnerships and landlords) to discourage claims for personal expenditure disguised as business costs on tax returns for the 2024/25 tax year. This follows a trial in 2024 that generated over £27 million in additional revenue and flagged widespread issue with personal use being misclassified as business expenditure. The campaign signals HMRC’s intention to ramp up enquiries and investigations into reported personal expenditure, ensuring only wholly and exclusively business-related deductions are claimed. Why It Matters: The “Wholly and Exclusively” Principle The crux of HMRC’s stance stems from the long-established “wholly and exclusively” rule, which mandates that expenses must be incurred purely for business purposes to be deductible. Even partial personal benefit can render the claim disallowable unless a clear, separable business-only portion exists. For example, if a self-employed individual uses a vehicle partly for personal and partly for business purposes, they must adjust their taxable profit by adding back any personal-use portion. Key Risk Areas for Self-Assessment Taxpayers There are some cost categories which are more likely have a personal element: Travel and subsistence - you can only claim business related travel to a temporary workplace, your normal commute to work and lunch in the office is personal - you should keep a mileage log and other evidence of the business purpose for the costs. Home office - you would typically apportion this based on the number of rooms or floor area, and time spent working - see our separate blog on this here . Phone and internet - if this is a mobile or home phone/internet, you should split between personal and business use. Subscriptions - there might be a personal element to subscriptions and things like streaming services and gym memberships accepted by HMRC as business expenses. How CJL Accountancy Can Help 1. Accurate Expense Classification We’ll help ensure your expenses genuinely satisfy the wholly and exclusively test, including: Identifying and separating personal vs business costs (e.g. motoring, heating, phone use) Making necessary add-back adjustments to taxable profits 2. Robust Record-Keeping Maintain clear, auditable documentation for all claims Show evidence of business purpose and usage splits where applicable 3. Proactive Tax Return Review We’ll review your draft Self-Assessments ahead of submission to flag potential issues. Where mixed-use expenses exist, we'll discuss apportionment strategies with you. 4. Preparation for HMRC Enquiries If HMRC contacts you, we'll manage communications and provide guidance, and assist in voluntary disclosures if errors are discovered. Next Steps for Business Owners Audit your last Self-Assessment: Have you included any dual-use expenses? Review your records: Ensure your receipts clearly outline business-related use. Update bookkeeping systems: Track business vs personal costs separately. Speak to us: CJL Accountancy can help revise past returns before any HMRC contact. Final Thoughts HMRC’s current campaign makes it clear: personal expenditure claims are under the microscope. With the right systems, advice, and documentation, you can reduce risk and remain compliant. CJL Accountancy is here to help you navigate this evolving landscape with confidence. Contact us .