Contractor accountants for limited company directors, freelancers and self-employed consultants across London and the UK. IR35 answered straight, your day rate planned properly and every deadline handled for you, on a fixed monthly fee from £135.
Contracting pays well, but nobody warns you about the admin that comes with it. These are the four things contractors, consultants and freelancers tell us keep them up at night, and the reason most go looking for a contractor accountant in the first place.
Every new contract feels like a judgement call, and the rules seem to shift each year. You want an IR35 accountant who tells you where you stand in a sentence, not a lecture.
Between salary, dividends, corporation tax and VAT, it is hard to know what a day of your time genuinely puts in your pocket. Most contractors have never been shown the calculation.
Mileage, home office, equipment, subsistence. You suspect claims are going unmade, but nobody has ever sat down and shown you what expenses you can claim as a limited company contractor.
Making Tax Digital means digital records and quarterly submissions instead of one annual return. The last thing you need between contracts is more paperwork.
If you recognise any of it, you are exactly who we built SBX for. We look after contractors and consultants across the UK, from contractor bookkeeping to year-end accounts, answer the same day and plan ahead so nothing lands on you as a surprise. As your appointed agent, we deal with HMRC for you.
The same work a good accountant for a small business does, built around how contracting actually runs. One named accountant, one fixed monthly fee from £135, every filing covered. No hidden fees.
A director’s Self Assessment with salary, dividends and reliefs reported correctly and filed early, no January panic.
ExploreStatutory year-end accounts and corporation tax for your limited company, prepared and filed on time.
ExploreVAT registration, the right scheme for your contracts, and quarterly returns filed under Making Tax Digital.
ExploreContractor bookkeeping kept clean and current, so quarterly submissions are painless.
ExploreHighly recommend SBX Accountants. Ryan took the time to explain everything clearly and gave me really helpful advice around IR35 and my setup as a contractor. Quick responses, great service, and very easy to work with.
150+ businesses trust SBX, rated 5.0 on Google and 4.7 on Trustpilot.
A quick estimate of take-home pay after Income Tax and National Insurance. For the limited company picture, a small salary with the rest as dividends, we will model it with you on a call.
Estimate your net pay after Income Tax and National Insurance.
It depends on the working relationship in each contract: control, substitution and mutuality of obligation, not just the paperwork. As your IR35 accountant we review each contract and how you actually work, tell you whether it looks inside or outside IR35, and help you plan either way.
If your contracts sit outside IR35, a limited company usually wins on take-home and control. If most of your work is inside IR35, an umbrella keeps life simpler. We run your numbers both ways so you can decide on facts, not guesswork.
Most single-director contractors take a small salary with the rest as dividends, reviewed each year as rates change. As your accountant for a limited company we set the mix, prepare the paperwork and keep an eye on it all year, not just at the year-end.
Yes, mid-contract or mid-year. Switching takes one email. We do the rest: we contact your old accountant, collect your records and pick up your filings and contractor bookkeeping without anything being missed.
Our all-inclusive limited company package starts from £135 per month, fixed and agreed up front. If you contract as a sole trader, packages start from £60 per month. Use our instant estimate tool for a ballpark in under a minute. No hidden fees.
It turns on profit, liability and who you contract for; some agencies and end clients will only engage a limited company. Our sole trader vs limited company guide walks through the crossover, and we will look at your own numbers and tell you plainly.
SBX helps you stay compliant & keep more of what you earn with expert tax, accounts, and bookkeeping services.