Clartis Group works with British SMEs, scale-ups, family-owned groups, and international companies with UK subsidiaries — providing fractional CFO support, FP&A, restructuring, operational improvement, and practical AI delivery.
ACCA-rooted partners with Big Four backgrounds. Partner-led from diagnosis to delivery.
HMRC, Companies House, FRS 102, IFRS, RTI payroll — the framework British finance functions actually live inside.
HMRC & UK tax compliance. Corporation tax, VAT (including Making Tax Digital), CT600 returns, PAYE Real Time Information, and reconciliation between bookkeeping and HMRC submissions.
Companies House & statutory accounts. Annual filings, confirmation statements, PSC register maintenance, and statutory accounts prepared to FRS 102 or full IFRS depending on group requirements.
UK payroll & RTI. Coordination with payroll bureaus, Real Time Information submissions, P11D benefits, auto-enrolment pensions, and director payroll within UK law.
IR35 & contractor classification. Practical guidance on contractor engagements, off-payroll working rules, and structuring decisions that survive HMRC scrutiny.
FRS 102 ↔ IFRS reporting. Statutory accounts under FRS 102 with parallel IFRS reporting for groups that require it — and a clear bridge between the two for international consolidation.
Founder-led growth companies in the £2M–£50M revenue range that have outgrown a bookkeeper or part-time finance director and need senior FP&A, board reporting, and fractional CFO support.
PE-backed portfolio companies needing 100-day plan execution, monthly reporting discipline, value-creation work, and fractional finance leadership during transitions.
UK subsidiaries of international groups needing local finance, statutory compliance, and group-format reporting — with comfort in both FRS 102 and IFRS.
Founders preparing to raise, restructure, or exit who need clean historicals, defensible models, and a finance function that survives institutional due diligence.
Our partners include ACCA Fellows and former Big Four professionals (KPMG, PwC, Deloitte) who have sat in the CFO seat — closing across entities, running IFRS consolidation, and managing cash discipline through restructuring pressure.
We have shipped AI in production across finance, voice, and workflow. Practical implementation, not AI theatre.
See all practices →Tell us the business outcome you need — fundraising, restructuring, cash discipline, consolidation, or practical AI adoption. We'll define the fastest path forward.
Book a confidential call →