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Tax Services

Tax advisory built for every dimension of your tax function.

Whether your team is navigating shifting regulations, planning for an IPO, or scaling internationally, CFGI’s Tax practice helps you simplify complexity and accelerate decision-making. Our service offerings span corporate tax, VAT, Employment taxes amongst others, R&D credits, transactions tax, tax technology, and ongoing tax accounting support, delivered with a “sat in the seat” mindset that bridges the gap between tax strategy and execution.

What we’re seeing in the tax landscape

Four forces reshaping the modern tax function.

Tax is no longer a back-office filing function. CFOs, tax directors, and audit committees are being asked harder questions, on tighter timelines, with smaller teams. These four trends keep coming up in every conversation we have with the office of the CFO.

AI is no longer optional in tax

Generative AI is moving tax work from manual to model-driven: data aggregation, compliance monitoring, scenario modeling, and audit readiness. Tax departments that wait are getting outpaced by the ones already deploying it.

Regulatory scrutiny is intensifying

Today’s political and business climate places heavier regulatory pressure on tax consulting, direct and indirect tax filings, reporting, and disclosures. Material weaknesses and restatements tied to tax are landing in the headlines.

R&D relief is enhanced, with administrative requirements

The UK’s R&D tax relief regime was reformed from 1 April 2024, with the SME and RDEC schemes merged into a single, enhanced RDEC-style credit system that provides a taxable above-the-line credit of 20% for most qualifying R&D expenditure, while retaining a separate Enhanced R&D Intensive Support (ERIS) regime for R&D-intensive loss-making SMEs.

Multi-jurisdiction complexity is the norm

Corporate tax, indirect tax, and international transfer pricing now matter for almost every growth-stage company. Where you sell, where you hire, where you ship: each opens a tax footprint that has to be modelled.

How CFGI helps

Seven capabilities. One integrated tax practice.

CFGI’s Tax practice works directly with your internal tax department or operates as a fully outsourced provider. The service offerings can be tailored to the needs of any client, from a private start-up running its first provision to a listed company managing global compliance.

Tax Accounting Consulting

Provision analysis and preparation of solus and consolidated tax disclosures, audit readiness, IPO registration support, purchase price accounting, deferred tax asset recognition and supporting analysis.

General Tax Consulting

Direct and indirect tax return preparation, R&D tax credit claims, UK and international tax advisory, M&A and employment taxes, and transfer pricing.

Interim Management

Temporary Heads of Tax, Tax Directors, Tax Managers, corporate and indirect tax technical specialists. Staff augmentation and loan staffing for project work.

Transactions Tax

Tax due diligence, tax purchase accounting, and post-deal integration support.

Tax Technology Solutions

Tax provision software, indirect tax systems such as OTP and Avalara, ERP set up for tax, and data quality remediation across the tax function.

Reporting and Compliance Matters

  • Tax group reporting under IFRS and UK GAAP, consolidations and solus tax disclosure work
  • Preparation and submission of direct and indirect tax returns, and iXBRL tagging
  • Corporate Criminal Offence, Senior Accounting Officer obligations, and wider tax governance
  • Research and Development tax credits (RDEC) and capital allowances analysis
  • US GAAP and IFRS conversions
  • Employment tax and global mobility services
  • Outsourcing services, including interim tax roles
  • HMRC enquiry services

UK and International Tax Advisory Services

  • Restructuring and reorganisations
  • International expansion
  • Cross border tax issues
  • Permanent establishment reviews
  • Cash repatriation
  • Withholding tax analysis and passports
  • Transfer pricing
  • Indirect tax advisory services
  • Employment tax and global mobility matters

Transactions

  • Buyside and sell side tax due diligence
  • Transaction tax structuring
  • Tax health checks
  • Post-acquisition tax actions
  • Sale and Purchase Agreements tax review and commentary

Tax Technology Services

  • Cross-tax technology strategy and digital transformation
  • ERP tax design, implementation and optimisation
  • Tax process automation and workflow optimisation
  • Tax data, analytics and reporting solutions
  • AI-enabled tax process improvement
Low-friction offer

Expert Access

A free 30-minute call with a CFGI tax SME on whatever is on your team’s mind: provision questions, R&D credit opportunity, indirect tax issues, or cross border transactions.

Best for: leaders who want a sounding board before scoping a project.

Low-friction offer

Tax Health Check

A structured review across four domains: Corporate Tax, Tax Technology, Indirect Tax, and R&D Credit. CFGI surfaces exposures, missed credits, and process gaps that drive material weakness risk.

Output: a written readout with prioritised opportunities and remediation paths.

Low-friction offer

Phased Tax Engagement

Start with one capability (tax provisioning, R&D, indirect tax), then expand. Limited-scope through fully outsourced managed services, sized to the team and the moment.

Output: a defined deliverable on the first phase plus a roadmap for the next.

Why CFGI in Tax

Big-4 pedigree. Boutique attention. No audit conflicts.

The CFGI Tax practice was established by leaders with decades of Big 4 and in-house tax experience, then built around a boutique delivery model where senior partners stay on the engagement.

Strategy and execution, under one roof.

  • Sat in the seatsSenior tax professionals with experience as Heads of Tax, tax directors, and Big 4 partners. Practical, not theoretical.
  • End-to-end lifecycle coverageStart-up, IPO, and listed company tax needs handled by one team. No handoffs between firms as you scale.
  • Flexible deliveryLimited-scope projects, interim staffing, or fully outsourced managed services. We adapt as the team and the calendar shift.
  • AI-native tax thinkingWe build AI assistance into provision, compliance, scenario modelling, and audit readiness. Practical, not slideware.
  • No audit restrictionsFree from audit independence constraints. The firm that runs your audit cannot do this work alongside it.
Where tax teams get stuck

Four questions every tax leader is already getting asked.

Is our auditor also doing our tax work?

If the firm running your audit is also preparing your tax provisions, you have independence risk. The closer you get to listing or meeting the PIE requirements, the harder that conversation becomes. The fix usually has to happen before the IPO clock starts.

Are we leaving R&D credits on the table?

If you have R&D spend, the credits can create cash opportunities either by repayable credits or reducing tax liabilities.

Can our tax data actually be trusted?

If the tax team spends more than 30 percent of cycle time preparing data, the issue is upstream. Spreadsheets as the primary system of record, ERP gaps, and missing tax data requirements in past implementations all show up as material weakness risk.

Are we ready for the next transaction?

Buy-side, sell-side, carve-out, reverse merger, IPO: each has tax implications that move the deal economics. Tax purchase accounting, structural diligence, and post-close integration all benefit from being in the conversation before the LOI.

What a CFGI tax engagement covers

A practice built around the office of the CFO.

7 service linesTax accounting, Tax compliance, Tax advisory, Indirect Tax, R&D credits, Transaction tax and Interim roles, all under one practice leadership.
4 health checksGeneral tax, tax technology, indirect tax and R&D credits. Free diagnostics that surface exposures and opportunities and unrealised credits before they become problems.
3 lifecycle stagesStart-up and private company, IPO readiness, and listed company. The same partners stay with the company as the tax footprint grows.
30 minutesThe free Expert Access call. A senior tax SME, your most pressing questions, and a written summary of what we would look into next.
Latest tax insights from CFGI

The latest perspective shaping tax decisions right now.

Insight, March 2026

The intelligent tax department

AI is no longer optional in tax

What the article covers

CFGI’s Kevin Murawinski walks through the practical applications of AI inside the tax function: data aggregation across siloed systems, intelligent compliance monitoring, scenario modeling and what-if analysis, audit readiness, and natural-language interfaces that surface answers without writing a SQL query.

Why it matters now

Tax departments that wait are getting outpaced. AI is closing the gap between strategic intent and execution, and the talent equation is shifting in favor of teams that adopt it early. The piece ends with concrete starting points for tax leaders who want to move from pilot to production.

Highlights

  • Data aggregation patterns that connect ERP, provision, and compliance.
  • Scenario modeling for legislative change, M&A, and global expansion.
  • Audit readiness automation that surfaces gaps before the request hits.
  • A talent and operating model view: AI as a team multiplier, not a replacement.
Tax services leadership

Talk to the team who run CFGI’s tax practice.

Ready to make tax a strategic function?

Start with the free 30-minute Expert Access call, a Tax Health Check across the four domains, or a phased engagement on the capability that needs help first. Same team, sized to fit.

Start a conversation →