You Focus on Your Clients.
We’ll Focus on Your Finances.
Your time is valuable. Don’t waste it doing your own accounts.
As a consultant, your expertise is what makes your business successful.
But every hour spent managing your accounts is time you could be spending helping clients and earning money.
At Simplex, we provide straightforward accounting and tax support for consultants across the UK.
From bookkeeping and tax planning to VAT registration, we’ll keep your finances organised as your business grows, so you can focus on doing what you do best.
Make More of Your Time
Spend less time managing bookkeeping and tax, and more time working with clients and generating income.
Stay Organised
Keep your invoices, expenses and tax savings under control, so you always know where your business stands.
Plan for Growth
Prepare for tax bills, VAT registration and increasing income with ongoing support as your business develops.
Accounting That Works Around Your Business
When you’re a consultant, your business relies on your time, knowledge and expertise.
But managing your own finances can quickly take up hours that could be spent delivering work for clients.
And when your income varies from month to month, it’s important to know what’s coming in, what needs putting aside for tax and how much you can actually afford to take home.
We help consultants stay organised, manage their bookkeeping and plan ahead, so running the financial side of your business doesn’t become another full-time job.
You look after your clients. We’ll look after your accounts.
Accounting Services for Consultants
From everyday bookkeeping to tax planning, we’ll help you stay on top of your consultancy’s finances.
Bookkeeping & Xero Accounting
Spend less time sorting receipts and reconciling transactions. We’ll keep your invoices, expenses and financial records organised using Xero.
Annual Accounts & Corporation Tax
Stay on top of your annual accounts, Corporation Tax returns and filing deadlines, with support to help you understand and prepare for your tax bills.
VAT & Payroll Services
Approaching the VAT threshold? We’ll help you understand when you need to register, manage your VAT returns and stay compliant as your business grows.
Director Tax & Ongoing Support
Understand how to pay yourself through salary and dividends, what expenses you can claim and how much to put aside for tax.
“Simplex are super easy to work with. I love that I have a portal to track all documents and paperwork that need my attention. Everything else just seems to run in the background so I can focus on my business.”
Jordan, Designer
Three Ways We Help Your Consultancy
Get Your Time Back: Stop spending valuable hours managing your own bookkeeping and accounts. Free up more time to focus on your clients and earn money doing what you’re good at.
Stay in Control of Your Money: Know what’s coming in, what’s going out and how much needs putting aside for tax, so you’re not caught out by unexpected bills.
Grow With Confidence: Whether you’re taking on more clients, increasing your rates or approaching the VAT threshold, we’ll help you understand your finances and plan your next steps.
More Than Just Filing Your Accounts
Your accountant shouldn’t only tell you how much tax you owe after the year has ended.
With up-to-date bookkeeping and ongoing accounting support, you can start answering questions that actually matter to your consultancy:
Am I charging enough for my time and expertise?
How much should I be putting aside for tax?
What happens when my income goes over the VAT threshold?
How much can I afford to take out of my limited company?
Would outsourcing my bookkeeping save me money?
Can I afford to reduce my working hours or take time off?
Because understanding your finances helps you make better decisions before committing to your next big move.
Why Choose Simplex?
Running a consultancy is busy enough without worrying about your accounts and tax deadlines. At Simplex, we keep your finances organised and up to date using Xero, so you always have a clearer picture of your business.
With straightforward advice and ongoing support, we’ll help you understand your numbers, plan for tax bills and make confident business decisions.
And because we’re fully remote, you can access reliable accounting support wherever you’re based in the UK.
“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.”
Catherine, Florist
Smart Tools, 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 transfer your records, handling the switch for you.
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.
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!
As a consultant in the UK, the amount of tax you pay depends on your earnings and whether you operate as a sole trader or limited company. Sole traders generally pay Income Tax and National Insurance on their profits, while limited companies pay Corporation Tax on taxable profits. You may also pay personal tax when taking money from your company. As specialist accountants for consultants, we can help you understand your tax obligations, claim allowable expenses and structure your business tax-efficiently.
Whether you’re self-employed as a consultant depends on how you work and your business structure. If you operate as a sole trader, you’re generally classed as self-employed and must register with HMRC when required. If you run a limited company, you’re usually a director rather than self-employed for tax purposes. Some consultants may also fall within the IR35 off-payroll working rules. We help UK consultants choose the right business structure, stay compliant and manage their accounting with confidence.
You generally need to register for VAT if your taxable turnover exceeds £90,000 over a rolling 12-month period, although you can register voluntarily below this threshold. Most UK consultancy services are subject to the standard 20% VAT rate, but different rules may apply when working with overseas clients. Once VAT registered, you’ll usually need to charge VAT on applicable services and submit VAT returns. We can help you understand VAT registration, manage your returns and avoid costly mistakes.
An accountant for consultants helps you manage your finances, reduce unnecessary tax costs and stay compliant with HMRC. This includes bookkeeping, tax returns, VAT, company accounts and advice on whether to operate as a sole trader or limited company. A specialist consultant accountant can also help you claim allowable business expenses and plan for future tax bills. We provide straightforward, online accounting services for UK consultants, giving you more time to focus on your clients and growing your business.
Yes, ChatGPT can help consultants with basic accounting tasks, such as explaining financial terms, organising expense information and understanding common tax concepts. However, AI can make mistakes and shouldn’t replace a qualified accountant, particularly when dealing with UK tax legislation, VAT or HMRC compliance. An experienced accountant can review your individual circumstances, identify tax-saving opportunities and ensure your returns are accurate. We combine practical accounting expertise with modern digital tools to make managing your consultancy finances simpler and less stressful.
