Simple, friendly accounting support for your limited company
Running a limited company can feel like a lot to manage, especially when tax deadlines, payroll, VAT, bookkeeping and Companies House requirements all compete for your time. Simplex gives you clear, proactive support from an online accountant for limited company needs, so you always know what is due, what to pay, and how to stay tax efficient. With unlimited calls, texts and emails included, you get expert help without worrying about extra charges.
Pay yourself tax efficiently
We help you plan salary, dividends and expenses clearly, so you can reduce unnecessary tax and keep more money in your company.
Save time and stay compliant
We manage your key deadlines, accounts and tax returns, so your limited company stays organised while you focus on running the business.
Get support whenever you need
Call, WhatsApp or email Simplex at no extra cost, with a 48-hour response guarantee so you are never left waiting for the answers you need.

Get your company finances sorted without the stress
At Simplex, we help limited company directors across the UK stay compliant, save tax and make better business decisions. You get a dedicated, approachable accountant who explains things clearly and keeps your finances moving in the right direction.
Whether you are newly incorporated or already trading, we can support you with accounts, Corporation Tax, VAT, payroll, bookkeeping, director pay planning and ongoing advice.
Everything your online accountant for limited company should cover
Your limited company accounts should feel simple, clear and fully under control. Simplex gives you friendly online accounting support that keeps deadlines managed, tax handled properly and your finances easy to understand.
✅ Year-end accounts prepared and submitted
✅ Corporation Tax returns completed on time
✅ Bookkeeping support to keep records accurate
✅ VAT returns and Making Tax Digital support
✅ Payroll handled smoothly when needed
✅ Director salary and dividend advice
✅ Companies House requirements taken care of
✅ Unlimited support by call, text or email
We help you stay compliant, save tax and feel confident about your company finances all year round.

“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.”
Neil, Construction

Personal support, not a faceless online service
Choosing an online accountant does not mean losing the personal touch. With Simplex, you get the flexibility of online accounting with the warmth of a real relationship.
You can speak to us by phone, text or email, and we are available Monday to Friday, 9 am to 6 pm. We take the time to understand your company, your goals and the challenges you face as a director.
That means better support, faster answers and a smoother accounting experience.
Accounting That Fits Around Your Business
No paperwork. No office visits. No need to travel for a meeting. Simplex works 100% remotely, so your accounting is handled online, securely and conveniently.
You can send documents, approve tasks, check your figures and get support from anywhere. Everything is set up to save you time and keep your finances moving in the background.
Whether you are at your desk, on-site or working from home, your accountant is always within reach.

“Lucy and the team have been very helpful with their accounting services. I’ve always had my accounts filed on time, and the support has been helpful”
Sherilyn, Marketing Agency Owner
Simple Accounting
We set you up with easy, reliable tools so your finances stay organised without adding to your to-do list. Everything is customised for the way you work, and we’re always here if you need help.
Xero
Stay organised without spreadsheets.
See your income, expenses and invoices in one place, always up to date and ready when you need it.
dext
No more chasing receipts.
Snap a photo or forward an email, and your bills and receipts are stored, sorted and matched to your accounts.
brightpay
Stress-free payroll.
Payslips, pensions and submissions are taken care of, always on time and fully compliant with HMRC
Getting Started is Easy!
We’ve made it simple for you to get the help you need:
Book a 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 discovery call! It will only take a minute
Time to Switch Accountants?
You don’t need to stay stuck with support that’s slow or confusing. Switching to Simplex is smooth and handled for you.
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? Let’s make it happen.
Helpful Resources
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!
The cost of an accountant for a limited company usually depends on the level of support you need. Basic compliance services, such as annual accounts and Corporation Tax returns, are often more affordable, while bookkeeping, payroll, VAT, and business support increase the monthly fee. Many UK accountants now offer fixed monthly packages, which helps you budget more easily. A good accountant should save you time, reduce stress, and help you avoid costly mistakes.
You are not legally required to hire an accountant for a limited company, but many directors find it worthwhile. Limited companies have more responsibilities than sole traders, including annual accounts, Corporation Tax, payroll, and Companies House filings. An accountant helps you stay compliant, avoid penalties, and keep your records organised. They can also advise on tax efficiency and help you understand your business finances more clearly.
Yes, you can file limited company accounts yourself using HMRC and Companies House online services. However, the process can be confusing if you are unfamiliar with accounting rules and filing requirements. Mistakes may lead to penalties or inaccurate tax reporting. Many directors choose an accountant to ensure everything is submitted correctly and on time. This also gives you peace of mind and frees up time to focus on running your business.
ChatGPT can help explain accounting concepts, answer basic questions, and assist with simple admin tasks. However, it should not replace professional accounting support, especially for tax planning, compliance, or legal responsibilities. UK tax rules change regularly, and every business situation is different. An experienced accountant can provide tailored guidance, spot opportunities to save tax, and make sure your company stays fully compliant with HMRC and Companies House requirements.
Yes, many small business owners manage their own limited company accounting, especially when transactions are straightforward. Accounting software can make bookkeeping and invoicing much easier. However, limited companies must meet strict filing deadlines and follow UK accounting rules. If you are unsure about Corporation Tax, payroll, VAT, or year-end accounts, professional support can help you avoid errors and save valuable time. Many directors choose a mix of DIY bookkeeping and accountant support.

