Tax Advice for Sole Traders, Small Businesses and Startups
Here's a number worth sitting with for a moment: when the 2024/25 self-assessment deadline passed on 31 January 2026, HMRC estimated that around one million people had missed it. A million! Out of roughly twelve million people who were supposed to file. That's not a story about laziness. It's a story about how easy it is for tax to slip down the priority list when you're running a business, chasing invoices, and trying to have a life outside of work.
I've been an accountant in Kent for a long time, and I still remember the exact moment I understood why people avoid this stuff. A client — a joiner, self-employed, brilliant with his hands — sat across the desk from me with a carrier bag full of receipts and said, "I just don't know where to start." He wasn't stupid. He wasn't careless. He was simply a tradesman who had never been taught how to run the financial side of a business, because nobody ever is. That's what accountants are for.
If you're reading this, you're probably a sole trader, a freelancer, a contractor, or the director of a small company somewhere in Tunbridge Wells, Tonbridge, Sevenoaks, or the wider South East, and you're wondering how on earth to choose the right accountant. Good. That's exactly what this guide is going to help you do. I run Peter Hodgson & Co, and I want to walk you through the real questions people ask us — no jargon, no sales pitch, just straight answers from someone who's had this conversation hundreds of times.
Most people think an accountant just "does the books." In reality, a good small business accountant in Kent will typically cover:
Here's the thing though: not every accountant offers all of these, and not every business needs all of them. A sole trader running a small graphic design studio from a spare room needs something quite different from a limited company with four employees and a warehouse in Paddock Wood. When you first speak to a firm, ask them directly which of these services are included as standard and which cost extra. I once had a prospective client leave her previous accountant because she discovered, three years in, that payroll had been billed separately the entire time and nobody had ever mentioned it up front. Ask early. Save yourself the surprise later.
Prices vary enormously, and anyone who gives you a single flat number without knowing your business is guessing. As a rough guide across the South East:
I'd urge you to be a little wary of the cheapest quote in the room. I'm not saying cheap is always bad — but I've picked up several clients over the years who came to us after a bargain-basement accountant missed a filing deadline, misapplied an allowance, or simply stopped answering emails. The fee you pay should reflect a real person actually looking at your numbers, not a template being churned through software with your name stapled to the top.
This is one of the most common questions we get, and honestly, there's no universally correct answer. Online-only accountants can be cheaper and are often perfectly competent for very simple, low-touch businesses. But there's real value in sitting across a table from someone who knows the Tunbridge Wells business landscape — who understands, for instance, that a retailer on the Pantiles has a completely different cash flow rhythm to a consultant working out of Sevenoaks, or that a landscaper covering the Kent and Sussex border has fuel and vehicle costs that need proper planning around.
I'll be honest with you: I'm biased toward local, because I've built my career on it. But even setting bias aside, there's something to be said for an accountant who can meet you for a coffee on the high street when something urgent crops up, rather than one you only ever reach through a support ticket.
This trips up almost every new freelancer I meet. The general rule from HMRC is that an expense must be incurred "wholly and exclusively" for business purposes. In practice, that usually includes:
What trips people up is the grey area — a phone used for both business and personal calls, for example, or a car used for both. That's exactly where an accountant earns their fee, because getting this wrong in either direction is a problem: claim too little and you're paying more tax than you need to; claim too much and you're inviting an HMRC enquiry.
Yes, and if you're a contractor working through your own limited company, this genuinely matters. IR35 rules determine whether HMRC treats you as employed or self-employed for tax purposes on a given contract. Get it wrong, and the tax bill — plus penalties — can be substantial. A decent accountant won't just file your return; they'll look at your contracts and working practices and flag risk before it becomes a problem, not after. If your current accountant has never once mentioned IR35 to you and you're contracting through a limited company, that's worth a conversation.
For a straightforward freelancer filing self-assessment only, expect to pay somewhere in the £300–£600 annual range in Kent. If you operate through a limited company as a contractor, with the extra layers of corporation tax, payroll, and possibly VAT, fees more commonly land between £1,000 and £1,800 a year, or a monthly package of around £100–£150. Ask whether the quote includes unlimited email and phone support, or whether every query racks up an additional charge — that detail changes the real cost of the relationship enormously.
Starting a business is exciting, exhausting, and — if I'm being candid — a little terrifying, even for people who've done it before. I've sat with founders on their very first day of trading and with founders on their fifth business. The nerves never fully disappear; they just change shape.
Look for someone who is a member of a recognised professional body — ICAEW, ACCA, or CIMA are the main ones in the UK. This isn't just box-ticking. It means they're bound by a code of professional conduct, carry proper indemnity insurance, and are required to keep their knowledge current through ongoing training. Anyone can call themselves "an accountant" in the UK, because the term itself isn't legally protected — which is precisely why the qualification matters so much.
Earlier than you think. I know that sounds like something an accountant would say, but hear me out. I once worked with a founder who came to us eight months after incorporating her company, having already made a string of small decisions — how she paid herself, how she structured a loan from a family member, which bank account she used for what — that would have been simple to set up correctly from day one but took real time and cost to untangle afterwards. Nothing was disastrous. It was just harder and more expensive than it needed to be.
Ideally, speak to an accountant before you even incorporate. They can advise on the right structure — sole trader versus limited company — based on your specific numbers, not a generic rule of thumb.
A few I'd suggest:
Watch how they answer, not just what they say. A good accountant should be able to explain a complex idea — like the difference between a dividend and a salary — in plain English, without making you feel small for asking.
The online filing deadline is 31 January following the end of the tax year, with payment due on the same date. There's also a 31 October deadline if you're filing on paper, though almost nobody does that anymore. There's a second payment date to be aware of too — 31 July — for anyone making "payments on account" toward the following year's tax bill. This second date catches people out constantly, because they've mentally filed tax as a "January problem" and then a surprise bill lands in the summer.
An automatic £100 penalty applies the moment you're late, even by a single day, even if you owe no tax at all. After three months, daily penalties of £10 kick in. After six months and again after twelve, further penalties are added on top of interest on any unpaid tax. It escalates quickly, and it's entirely avoidable.
If you have missed a deadline, don't sit on it hoping it'll resolve itself. It won't. File as soon as you can — the penalties stop growing the moment you do, and in some cases, if you have a genuine reasonable excuse, they can be appealed.
Broadly: records of all income, bank statements for relevant accounts, receipts or a log of business expenses, details of any employment income (a P60 or P45), and information on savings interest, dividends, or rental income if applicable. The single biggest time-saver I can offer you is this — keep records as you go, not in a scramble in January. A shoebox of receipts handed over in week three of January is a very different job to a neat spreadsheet updated monthly.
You absolutely can file it yourself, and plenty of people with very simple affairs do so successfully. But the value of an accountant usually isn't in the filing itself — it's in the decisions made throughout the year that shape what that return looks like. Pension contributions, timing of income, allowable expenses you didn't know existed. I've lost count of the number of times a new client has said, "I wish I'd known that sooner," about something that would have saved them real money had we been involved twelve months earlier rather than three weeks before the deadline.
Reliability depends on the firm, not the format. What matters is whether a qualified person actually reviews your accounts, whether you can reach a human being when something goes wrong, and whether the service is built around your business or a one-size-fits-all template. Some online providers are excellent. Others are thin on real support once you scratch the surface. Ask the same questions you'd ask a local firm.
Typically: preparation and filing of annual accounts, corporation tax return (CT600), Companies House confirmation statement, and basic tax planning advice. Payroll, VAT, and detailed bookkeeping are often add-ons rather than automatically included, so check carefully what sits inside the headline price.
Xero and QuickBooks are the two most widely used cloud platforms in the UK, and both are excellent when set up properly. The software itself matters less than how well your accountant configures it for your business and how comfortable you are using it day to day. If a system feels clunky or confusing after a proper introduction, say so — a good accountant will adjust the setup rather than telling you to just get used to it.
You register with Companies House, either directly or through your accountant, providing a company name, registered address, details of directors and shareholders, and a memorandum and articles of association (usually a standard template is fine for a straightforward small business). It typically takes 24 hours online. The harder part isn't the registration itself — it's making sure the structure suits your actual circumstances, which is where advice before you incorporate really pays off.
As a sole trader, you pay income tax and National Insurance on your profits directly. As a limited company, the company pays corporation tax on its profits, and you then decide how to extract money — through salary, dividends, or a combination — each carrying different tax treatment. For some businesses, incorporating brings genuine tax efficiency. For others, particularly at lower profit levels, it adds administrative cost without much benefit. This is a numbers conversation, not a one-size-fits-all rule, and it's one worth having properly rather than guessing based on something you read online.
Not legally, no. But given how much rides on getting the initial structure right — share allocations, director loan arrangements, VAT registration timing — most business owners find it's a false economy to go it alone at this stage.
Sole traders generally need someone comfortable with self-assessment, expense claims, and — depending on turnover — VAT. Limited company directors need someone who also understands corporation tax, payroll, and Companies House compliance. Many firms, including ours, work with both, but it's worth confirming your accountant has genuine day-to-day experience with your specific structure, not just a passing familiarity.
At minimum: a running log of income and expenses, copies of invoices issued and received, bank statements, and receipts for anything you plan to claim. A simple spreadsheet updated weekly beats a perfect system you never actually use. I always tell clients: consistency matters more than sophistication.
There's no single magic number, but many sole traders start seriously considering it once profits regularly exceed somewhere around £30,000–£40,000 a year, as the potential tax efficiency starts to outweigh the added administrative cost. It's genuinely worth running the actual numbers for your situation rather than relying on a rule of thumb from a forum post — what works for one business rarely translates cleanly to another.
We set this practice up many years ago because we wanted to be the accountants we'd have wanted when we were starting out — someone who explains things properly, answers the phone, and treats a sole trader's business with the same care as a company turning over millions. We're based right here in Tunbridge Wells, and over the years we've worked with tradespeople, freelancers, contractors, and growing SMEs across Kent and the wider South East, from Tonbridge to Sevenoaks and beyond.
If you're weighing up your options — whether you're just starting out, switching from an accountant who's stopped returning your calls, or simply trying to get on top of self-assessment before it becomes a January panic — get in touch. We'll have an honest conversation, no obligation, and no jargon. You can find us online, or pop into the office if you'd rather talk face to face. Either way, we'd genuinely like to hear from you.
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