IR35 AccountantsSpecialist IR35 accountants for contractors across the UK
Contract reviews, status disputes, outside-IR35 accounting and HMRC enquiry defence. Tell us where you stand and we come back within 48 hours with a fixed written quote, no obligation.
- IR35 contract reviews with a written opinion
- Status determination disputes
- Outside-IR35 limited company accounting
- Umbrella payslip audits and JSL reviews
- HMRC enquiry defence and company closure
IR35 is the core casework
Contract reviews, SDS disputes and HMRC status enquiries are the routine work here, alongside contractor company accounting, not a sideline to year-end accounts.
Regulated and insured
The work is carried out within an ACCA-regulated practice holding professional indemnity insurance, with your accounts and correspondence in one place.
Current on the 2026 rules
We work with the rules as they stand from 6 April 2026: the new small-company thresholds and the umbrella joint and several liability regime.
Fixed written quotes
Every engagement starts with a fixed written quote within 48 hours of your enquiry. The price we quote is the price you pay, with no obligation to proceed.
IR35 stopped being someone else’s problem in April 2026
For five years most contractors could leave status to their end client. From 6 April 2026 the small-company thresholds rose to £15m turnover and £7.5m balance sheet, and roughly 14,000 engagers became small overnight. If your client is one of them, the status determination, and the liability that follows it, moved back to your company.
At the same time, the new joint and several liability rules made agencies and end clients answerable for unpaid PAYE wherever an umbrella company sits in the chain. Generalist accountants are catching up with both changes. We work on them every week: contract reviews, status disputes and the accounting that sits around them.
New small-company turnover threshold, from 6 April 2026
Balance-sheet threshold that moves with it
Engagers reclassified as small, handing status back to PSCs
What changed on 6 April 2026
Two separate reforms took effect on the same day, and between them they redrew who carries off-payroll risk.
Small-company limits rose to £15m / £7.5m
Around 14,000 engagers reclassified as small. Their contractors take back the status determination and the liability under Chapter 8, the pre-2021 position.
Read the guideJoint and several liability for umbrella PAYE
HMRC can now recover an umbrella company’s unpaid PAYE from the agency, or the end client where there is no UK agency, regardless of fault.
Read the guideWho we help
Three groups carry IR35 risk now, and we work with all three.
PSC contractors
Limited company contractors who need a defensible outside position, a fair fight on a wrong determination, or clean accounting across mixed inside and outside work.
Recruitment agencies
Agencies that became first in line for umbrella PAYE failures in April 2026 and need due diligence, payslip sampling and supply-chain compliance that stands up to HMRC.
End clients and engagers
Companies reassessing whether the off-payroll rules still apply to them under the new size thresholds, and what their SDS and reasonable-care duties now look like.
What we handle
Six lines of work, each of them core casework rather than a sideline.
IR35 Contract Reviews
Clause-by-clause review of your contract and working practices against the status tests HMRC and the tribunals actually apply, with a written outside or inside opinion you can rely on.
Status Determination Disputes
Help disputing a Status Determination Statement you believe is wrong, using the client-led disagreement process, evidence packs and the 45-day window the rules give your client to respond.
Outside-IR35 Limited Company Accounting
Full-service accounting for PSC contractors working outside IR35: company accounts, CT600, VAT, payroll and a salary-dividend strategy built on the 2026/27 rates.
Inside-IR35 & Umbrella Support
Deemed payment checks, umbrella payslip audits and joint and several liability reviews under the rules that took effect on 6 April 2026, for contractors, agencies and end clients.
HMRC IR35 Enquiry Defence
Specialist response to HMRC employment status enquiries and compliance checks: first-letter strategy, evidence, settlement arithmetic and honest advice on when to concede or fight.
Company Closure & MVL
Closing or pausing your PSC when you go inside, go permanent or retire: dormancy, strike-off versus Members’ Voluntary Liquidation, Business Asset Disposal Relief and the TAAR.
How it works
A deliberately simple process. No phone tag, no spam.
Tell us your situation
One short form: where you are based, and optionally your day rate, current status and what you need. Two minutes.
We send a fixed written quote
We come back within 48 hours with a fixed written quote for the work you need, whether that is a contract review, a dispute or full company accounting.
We do the work
Once you accept, the engagement runs on the quoted price. No hourly meters, and no obligation at any point before you accept.
The IR35 guides library
Ten in-depth guides covering the rules as they stand in 2026/27, from the status tests and CEST to enquiries, sectors and closing your company.
IR35 accountancy: common questions
The accountant behind this service
Fellow of the Association of Chartered Certified Accountants (ACCA)
Accountancy services on this site are provided by Tidy Money Ltd, a cloud-first ACCA-regulated practice. Every engagement starts with a fixed written quote, and you can verify the practice before you get in touch.
Get the right specialist on your side
Whether you are defending an outside position, disputing a determination or untangling an umbrella chain, the first step is the same short form.