Our Accreditations are changing in line with the new requirements coming in from April 2026.
Following the announcement in The Finance Bill 2026 of Joint and Several Liability these arrangements will be caught by the new legislation.
Our new accreditation, as part of the protection process for Joint and Several Liability, will require use of the Fortis system for the payment validation of all workers.
Accreditation will be achieved once a provider (1) has satisfied our review of a provider’s operational processes and procedures, and in addition (2) is integrated into our new Fortis platform.
We will be migrating existing providers to Fortis towards the end of 2025 and early 2026.
With effect from the start of the 2026-27 tax year, previous accreditations of providers who are not integrated into Fortis will cease to be valid.

Barrister led advisory based in the landmark St. Mary Axe, Templeton Brook Witt provide specialist tax investigations, compliance advisory and employment dispute advice to private clients and corporates.
Tax investigations and tax disputes
Tax investigations can be very onerous, stressful and time consuming. With the increased number of HMRC's information requests and discovery assessments, it pays to have the best advice. We can help you deal with any type of tax investigation through expert advice and specialist representation.
Our team deals with matters ranging from individual tax disputes to large and complex multiple client cases:
- Formal and Informal Notices
- Compliance Checks
- Penalty Notices
- Discovery Assessments
- Voluntary Disclosures to HMRC
- Accelerated Payment Notices (APNs)
- Code of Practice 8 – CoP 8 Investigations
- Code of Practice 9 – CoP 9 Investigations
- Contractor Loan Schemes and the Loan Charge
- DOTAS/POTAS Inquiries
- PAYE Tax Investigations
- IR35 Disputes
- VAT Investigations and Inspections
- HMRC Unannounced Inspections and Visits
- Settlements with HMRC
- Time to Pay Arrangements
- Statutory Reviews
- Forensic Tax Advice
- Tax Litigation Advice
Private Client and Corporate Advisory
Regular changes to legislation make tax and compliance a complex area. We aspire to the highest business, professional and ethical standards whilst providing excellent, efficient and timely service with a commercial and solution-based approach. We are adept at working alongside other professional advisors (accountants, solicitors, financial advisors) to help deliver the best solutions to our clients.
Employment Disputes
We possess a wealth of experience in employment disputes, acting for both employers and employees, from internal grievances, contract disputes and furlough claims to pre-litigation settlements and employment tribunal representations.