Take the Stress Out of Tax
Tax doesn’t need to be complicated. Whether you’re a sole trader, limited company or landlord on the Isle of Wight, Simplex makes tax simple. We’ll help you avoid penalties, save money, and stay on top of deadlines — with a hands-on approach, unlimited support, and friendly service that speaks your language.
Tax Returns Sorted
We take care of your personal and company tax returns from start to finish — accurately, on time, and fully compliant. We’ll also uncover every saving you’re entitled to, so you never pay more tax than you need to.
Real-Time Numbers
Using Xero, we help you stay on top of your tax, cashflow, and deadlines all year round — not just at year-end. You’ll always have a clear view of what you owe, when it’s due, and how to plan ahead, with no nasty surprises along the way.
Unlimited Personal Support
Have a question, need advice or want a second pair of eyes on something? Call, text or email us anytime — it’s all included. No waiting, no hidden fees, and no hourly billing. Just real help from someone who knows your business.
Built for Isle of Wight Business Owners
Whether you’re a sole trader, director, or landlord, we know the local market and the HMRC landscape. Our clients across the Isle of Wight trust us to:
✅ File accurate tax returns on time
✅ Maximise allowable deductions
✅ Stay compliant with HMRC rules
✅ Avoid late fees and missed deadlines
✅ Provide ongoing advice when it matters most
Opening hours: 9am – 6pm | Replies within 48 hours
Local Knowledge. Real Results.
At Simplex, we’ve supported builders in Bembridge, designers in Cowes, and consultants in Sandown — so we understand how island life shapes your business. From seasonal income and ferry delays to the way local businesses operate day to day, we offer practical advice that fits your situation and support that’s easy to reach when you need it.
✅ Local knowledge, from tax planning to expenses
✅ Online setup with no need to travel
✅ Personal support from people who know your business
Book your free discovery call today. We’d love to learn about your business.
Accounting That Works the Way You Do
Tax shouldn’t be a burden. At Simplex, we make it straightforward — keeping you compliant, saving you money, and giving you clarity over your numbers. Whether you’re just starting out or scaling up, we adapt to your needs and help you grow confidently.
Smart Tools, Simple Setup
At Simplex, we use smart, reliable tools to keep your accounting smooth and stress-free. We’ll handle the setup, show you how everything works, and stay by your side whenever you need support.
Xero
Your financial control centre.
Track your income, expenses and VAT in real time. Xero keeps everything organised, connected to your bank, and easy to access anytime.
Brightpay
Payroll made painless.
Run payroll with ease. BrightPay handles payslips, pensions and HMRC submissions – fully compliant and completely stress-free.
dext
Receipts and records, sorted.
Snap receipts and email invoices straight into your accounts with Dext. No paperwork, no chasing — just clean, accurate records ready to reconcile.
What It’s Like Working With Simplex
You deserve more than a once-a-year tax accountant. At Simplex, we stay close to your business year-round — with personal support, proactive guidance and no extra charges for picking up the phone. You’ll never be left wondering who to call or what’s going on.
Trusted by Isle of Wight Businesses
We’re proud to be the 2022 Xero Sole Practitioner of the Year, South East Young Entrepreneur of the Year and Finalist for IW Chamber Start Up Business of The Year 2025 – but even prouder of the results we deliver and the support we provide to our clients across the island.
“I don’t have to worry about anything.”
Catherine, Florist – Newport
“Lucy and the team are always so helpful and efficient. I trust them to take care of all my accounting so I don’t have to worry about anything! Great service.”
“A gem of a find.”
June, Holistic Therapist – East Cowes
“Being a small business owner life runs at a 100mph. My absolute dread has always been my self assessment. A couple of years ago I took the decision to use the services of an accountant. Several phonecalls later they were all ‘too busy’. I found Lucy’s number and nothing was too much trouble. Friendly and so accommodating and never too busy to answer questions. A gem of a find”
“We couldn’t ask
for more.”
Neil, Contractor – Isle of Wight
“Lucy, James and the team at Simplex have been with our company from the start and are a crucial linchpin in our operations. They are organised, methodical, quick to respond to needs and queries, and ultimately professional while maintaining a friendly, caring approach. We couldn’t ask for more. Thank you.”
Getting Started is Easy!
We’ve made it simple for you to get the help you need:
Book a Free Call
Tell us about your business and what you need.
Send Your Info
Share your financial details securely online.
We Do the Work
We’ll sort your accounts and keep everything up to date.
Stay in Control
Get updates and support, so you always know where you stand.
Book your free discovery call! It will only take a minute
Switching Accountants is Easier Than You Think
Not getting the support you need? Or just ready for something better?
Moving to Simplex is straightforward. We’ll handle the switch behind the scenes — no awkward calls, no chasing documents, and no disruption to your day-to-day. You stay focused on your business, and we’ll take care of the rest.
Seamless Transfer
We contact your previous accountant and securely move everything over, CIS, VAT, payroll and more.
No Disruption
Your accounts stay up to date while we handle the switch, so nothing gets missed.
A Fresh Start
We review your numbers, identify gaps, and get you set up with a clear plan that works for you.
Ready to switch?
Get in touch today and let’s make it happen!
Accountancy Blog Posts
Your Questions, Answered
We know you might have some questions, and we’re here to make everything as clear and straightforward as possible. If you need more information, don’t hesitate to reach out—we’re always happy to help!
Our services start from just £25 per month, offering great value for small business owners, landlords, and company directors. This fixed monthly fee covers your tax returns, Companies House filings, and reminders—no extra charges or hidden costs. We keep things simple, clear, and affordable. You’ll also get unlimited support from us, so if you ever have questions or need help with HMRC, we’re right here. It’s a complete, stress-free service that takes the hassle out of your tax responsibilities.
We’re not tax advisors, so we don’t offer formal tax planning or specialist advice. However, we’re more than happy to support you and answer any questions—big or small—as part of your monthly fee. Whether it takes two minutes or an hour to sort something, it’s all included. We aim to be helpful, straightforward, and responsive, without the worry of surprise bills. Our clients often tell us how reassuring it is to know they can just ask—we’re always here to help.
The Isle of Wight follows the same tax rates as the rest of the UK. For 2025/26, the personal allowance remains at £12,570. Income above this is taxed at 20% (basic rate), 40% (higher rate), or 45% (additional rate). There are also different rules for dividends and capital gains. We help you stay compliant and avoid penalties by managing your filings accurately and on time. No jargon, no fuss—just friendly, reliable support with everything HMRC-related, wherever you’re based in the UK.
A chartered accountant is fully qualified to manage financial records, company accounts, tax returns, and compliance. A tax advisor focuses on specialist tax planning, such as minimising liabilities or advising on complex matters. We’re accountants, not tax advisors, so we don’t offer formal advice—but we do provide unlimited support and handle all standard filings. If you’re looking for clear, consistent help with your day-to-day tax obligations, we’re a great fit—simple, friendly, and affordable, without the complications or hourly fees.
Many accountants charge between £40–£100 for a confirmation statement, but we include it in our £25 monthly service at no extra cost. That means your company’s annual statement to Companies House is filed accurately and on time as part of your regular plan. There’s no need to track deadlines or fill in confusing forms—we handle the entire process for you. It’s just one more way we keep things simple, clear, and affordable for small businesses and limited company directors.
Once we have everything we need from you, we usually complete personal tax returns within 1–2 working days. For limited companies, it can take up to 5 days, depending on complexity. We’ll keep you updated throughout, and there’s no need to meet in person—we work entirely online. You’ll never be left chasing or guessing what’s next. Just send us your info, and we’ll handle the rest—accurately, on time, and with full support included at no extra charge.