If I could give 100 stars I would. They are so responsive, efficient and proactive and just incredible at their jobs. They have helped me love owning a business again.
The accountant
who actually
answers.
We take care of your accounts, tax and VAT, while providing proactive advice to help your business grow.
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More than compliance.
Anyone can file your accounts. We help you understand your numbers, reduce your tax bill where possible, and make better business decisions throughout the year.
- No hidden fees or surprise bills
- We handle the switch from your current accountant
- Your business and personal tax, handled together
Responsive
Message us on WhatsApp or call and reach the same team who already know your business.
Proactive
We plan ahead all year, so tax bills and deadlines never land as a surprise.
Straightforward
Clear advice you can act on, explained without the runaround.
On your team
An extension of your business, here year-round, not just at year-end.
Built around how your business runs.
Limited
Companies
Startups
& Small Businesses
Sole
Traders
Recruitment
Agencies
Property
Investors
Contractors
& Consultants
Healthcare
Professionals
All UK
Businesses
Everything your business needs, in one team.
Year-End Accounts
Statutory accounts prepared, checked and filed on time, every time.
Corporation Tax
Your CT600 handled and your bill kept as low as legitimately possible.
Self-Assessment
Personal tax returns done properly and early, with no January panic.
Bookkeeping
Clean, up-to-date books so you always know where you stand.
VAT
Registration, returns and the right scheme, all under Making Tax Digital.
Payroll & CIS
Staff paid on time and CIS sorted, with all the filings done for you.
Tax Planning
Year-round planning that keeps more of your profit where it belongs, with you.
MTD Submissions
Making Tax Digital handled end to end, with every quarterly return filed on time.
Company Restoration
A struck-off company brought back to life, with all the Companies House work handled.
Company Incorporation
Your new limited company set up correctly at Companies House, ready to trade from day one.
Company Dissolution
Closing a company down cleanly, with the striking-off and all final filings handled for you.
HMRC Queries
HMRC letters, calls and compliance checks handled for you, start to finish.
Switching takes one email. We do the rest.
Three steps, then it’s handled.
Book a free call Booked
A quick chat about your business and what you need.
- Talk it through with a qualified accountant
- We learn how your business works
- A straight answer on the best setup
We handle the switch Switched
You send one email, we manage everything after that.
- Records collected
- Previous accountant contacted
- Software & HMRC access in place
We get to work Ahead
We stay ahead of every deadline, all year round.
- Every deadline tracked and met
- Proactive advice, not just compliance
- A direct line whenever you need it
What our clients say.
5-star ratings across Google and Trustpilot. See what our clients have to say about SBX Accountants.
Finding a good accounting team has been far more difficult than I ever expected. Working with SBX Accountants has been a refreshing change. They are incredibly proactive, easy to contact, and always accessible.
Ryan is responsive, knowledgeable and very likeable. He has given me excellent advice on my personal and business taxation - advice I wasn’t aware of from my previous accountant.
They hooked me up with an app that syncs everything - I just snap pics of receipts on my phone. They even spotted a double-charged expense from a client that saved me £200.
Ryan and Tabrez are so supportive, ready to answer when called upon, and you can feel they genuinely care about their clients. They are such a breath of fresh air and their innovative, modern approach has made life much easier for us.
Saved me thousands on rental income tax. As a landlord, I had no idea how to work around property tax rules. SBX broke everything down clearly and restructured my portfolio to be more tax-efficient.
They’ve been handling my small construction company’s CIS and tax returns for the past year, and I’ve never had a single issue. They also gave me great advice on managing cash flow during a slow period, which really helped me stay afloat.
They really took time to explain things in plain English, spot opportunities to save tax, and they’ve constantly been on the other end of the phone or WhatsApp if I need them.
They’ve looked after everything from my year-end accounts and tax return to advising on VAT and how to structure things more efficiently. If you’re looking for an accountant who’s hands-on and actually adds value beyond just compliance, SBX are the real deal.
See what we’d cost, in under a minute.
Tell us a little about your business and get an instant monthly price range. Unlike other accountants, no hidden fees. After a quick call we send your final quote over email.
Prices vary with property complexity, any development costs and the specific tax advice you need.
What affects my pricing?
- How many transactions run through the business each month
- The number of bank accounts and cards we reconcile
- Any transactions in foreign currencies
- Multiple payment processors, for example Stripe, PayPal or GoCardless
- Whether there is a group structure or more than one company
- Ad hoc tax advisory work beyond your normal compliance
- How up to date your records are when you join us
Thanks, there!
We’ve got your details and your estimate. One of the founders will call within one working day, then send your final quote by email. No hidden fees.
Know before you ask.
Free calculators, practical guides and useful resources to help you make confident business decisions. Every figure is an estimate we confirm with you.
Salary vs dividends
Drag your income to see the most tax-efficient way to pay yourself from a limited company.
Take-home earnings
Estimate your net pay after Income Tax and National Insurance.
VAT calculator
Add VAT to a net figure, or strip it out of a gross figure, at any UK rate.
Loan / HP repayment
Estimated repayments on a personal loan or hire-purchase agreement.
Corporation tax and marginal relief
Between £50,000 and £250,000 of profit your company pays neither 19% nor 25%. See what you actually owe, and what the next pound costs.
Associated companies share the £50,000 and £250,000 limits between them, so each extra company brings the higher rate on sooner. Dormant companies don’t count.
CIS deduction
Work out the CIS tax to deduct from a subcontractor payment, after materials.
Business expense tax savings
Estimate the tax you could save by claiming allowable business expenses.
Credit card repayment
See how long it takes to clear a balance, and what minimum payments really cost.
Am I affected by Making Tax Digital?
MTD means quarterly online submissions for many sole traders and landlords. Two quick questions tell you if it applies.
It’s an old return that decides it. HMRC looks back at your 2024/25 return, the one due on 31 January 2026. If the self-employment and rental income on it came to more than £50,000, you’re in from 6 April 2026 and your first quarterly update is due 7 August 2026. What you earn this year doesn’t change that.
It’s turnover, not profit. HMRC counts income before expenses, and adds self-employment and property together. £32,000 of trade plus £24,000 of rent is £56,000, so it counts even though the profit is far smaller.
What actually changes. Digital records, four quarterly updates a year, then your tax return as usual. The updates are running totals rather than four separate returns, and your payment dates don’t move.
Your numbers, always at your fingertips.
We are official partners of Xero, the platform we recommend, but we are no strangers to QuickBooks, FreeAgent and more. Everything lives in one secure client portal.
You’ll always know who’s looking after your business.
A Chartered team you’ll know by name, here to be the accountant we always wished we had.







Regulated, registered and accountable.
Every registration and regulator behind SBX, all publicly verifiable.
- Chartered AccountantsICAEW firm C011007060
- Registered companyCompany no. 16117542
- Data protectionICO ref. ZB871625
- Anti-money-launderingSupervised by the ICAEW
- Professional indemnityCover in place
The things people ask before switching.
Get in touchNo. It takes one email from you. We contact your old accountant, request your records, and handle the whole handover. Most clients are fully switched within a week without lifting a finger.
Usually the same day, often within minutes. You get a direct line to your accountant by phone, email or WhatsApp. You will never be left chasing us.
No. We act on your behalf as your appointed agent and handle everything to do with HMRC for you, from filings and payments to letters, calls and enquiries.
It depends on your business, but there are never surprises. Use our estimate tool for an instant range. After a quick call, we send your final quote by email. No hidden fees.
That is a big part of the job. We plan ahead all year, not just at the deadline, so you claim everything you are entitled to and keep more of your profit. Proactive advice, not box-ticking.
It is what we recommend and set most clients up on, but no. We also work with QuickBooks, FreeAgent and others, so you can stay on the software that already suits you.
Yes. Your documents live in an encrypted client portal, we are registered with the ICO (ZB871625), and we follow strict data-protection standards as a regulated Chartered practice.
Making Tax Digital means keeping digital records and sending HMRC updates every quarter instead of once a year. It already applies to many sole traders and landlords earning over £50k, with lower thresholds coming. If it affects you, we handle every submission.
Talk to chartered accountants in London & Slough.
SBX helps you stay compliant & keep more of what you earn with expert tax, accounts, and bookkeeping services.