TaxDigit

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For multinational groups operating in the UK, Action 13 compliance is a central part of transfer pricing documentation. It reshaped how large groups report where their profits are earned and taxed.

Action 13 compliance and transfer pricing documentation advice from TaxDigit

What Is Action 13?

Action 13 introduced a three-tiered approach to transfer pricing documentation: a master file overview of the group, a local file covering specific transactions, and country-by-country (CbC) reporting. Together these give tax authorities a clearer picture of global activities.

Who Needs to Comply?

CbC reporting generally applies to large groups above a global revenue threshold. Even without full CbC reporting, many groups still need master and local files, so Action 13 compliance is relevant to a wide range of international businesses.

Why It Matters

The aim is transparency. Consistent documentation across jurisdictions helps authorities spot mismatches between where activity happens and where profits are reported, and it is also a business’s first line of defence in any enquiry.

How TaxDigit Can Help

Our Guildford-based team helps groups meet their Action 13 compliance obligations with clear, defensible documentation. Get in touch to review your transfer pricing position.

Action 13 Compliance: UK-Wide Transfer Pricing Support

Action 13 compliance affects multinational groups operating right across the United Kingdom, not only those near our Guildford head office. TaxDigit helps UK-based groups and inbound multinationals prepare master files, local files and country-by-country reports that stand up to HMRC scrutiny.

Our chartered certified accountants make transfer pricing documentation practical, aligning your reporting with the OECD framework while keeping it proportionate to your size and structure. We support clients UK-wide, both remotely and on-site.

How we help with Action 13 compliance

  • Preparing master file and local file documentation to the required standard
  • Assessing whether your group meets the country-by-country reporting threshold
  • Aligning intra-group pricing policies with the arm’s length principle
  • Reviewing existing documentation for gaps before an HMRC enquiry
  • Coordinating Action 13 reporting with your wider corporation tax compliance

HMRC sets out the UK documentation requirements in detail here: HMRC transfer pricing documentation requirements for UK businesses.

Frequently Asked Questions

What is Action 13 compliance?
Action 13 is the OECD standard for transfer pricing documentation, introducing the master file, local file and country-by-country reporting so tax authorities can see where group profits are earned and taxed.

Does my group need country-by-country reporting?
Full CbC reporting generally applies to large groups above a global revenue threshold, but many smaller groups still need master and local files.

Can TaxDigit help if I am not based in Guildford?
Yes. We provide Action 13 compliance and transfer pricing support to clients UK-wide, remotely and from our Guildford office.

Thin capitalisation is a key concept in UK corporate tax, especially for groups that fund their operations through debt. It describes a situation where a company is financed with a relatively high level of debt compared to equity, often to take advantage of tax-deductible interest.

Thin capitalisation and intra-group debt tax advice from TaxDigit accountants

What Is Thin Capitalisation?

A company is said to be thinly capitalised when it carries more debt than it could realistically borrow on its own as an independent business. Because interest is generally deductible while dividends are not, groups can be tempted to load a UK company with intra-group debt to reduce taxable profits.

Why HMRC Takes an Interest

The UK’s transfer pricing rules require that intra-group borrowing reflects what would have been agreed between independent parties. Where a company is thinly capitalised, HMRC may disallow part of the interest deduction, treating the excess borrowing as something an unconnected lender would not have provided.

Managing the Risk

Groups can manage thin capitalisation risk by reviewing debt levels, interest rates and guarantees against arm’s length standards, and by keeping clear documentation. The Corporate Interest Restriction rules may also limit deductions separately, so both regimes need to be considered together.

How TaxDigit Can Help

Our Guildford-based team helps groups review intra-group financing and address thin capitalisation risk before it becomes a problem. Contact us to discuss your funding structure.

Thin Capitalisation: UK-Wide Corporate Tax Support

Thin capitalisation is a concern for groups across the United Kingdom, not just those near our Guildford head office. TaxDigit helps UK companies and international groups test whether their intra-group debt is at an arm’s length level and manage the transfer pricing risk that follows.

Our chartered certified accountants review your financing structure, model interest deductibility and help you document a defensible position before HMRC raises an enquiry. We act for clients UK-wide, remotely and on-site.

How we help with thin capitalisation

  • Assessing whether a UK company is thinly capitalised on arm’s length terms
  • Reviewing intra-group loan agreements and interest rates
  • Modelling the impact of the Corporate Interest Restriction
  • Preparing transfer pricing documentation to support interest deductions
  • Advising on debt-to-equity structuring for new UK investment

HMRC explains the rules in its International Manual: HMRC thin capitalisation legislation guidance (INTM413090).

Frequently Asked Questions

What is thin capitalisation?
A company is thinly capitalised when it carries more debt than it could have borrowed as an independent business, often to maximise tax-deductible interest. UK transfer pricing rules can deny the excess deduction.

Why does HMRC scrutinise thin capitalisation?
Because interest is deductible while dividends are not, groups can load a UK company with intra-group debt to reduce taxable profits, so HMRC tests whether the borrowing is at arm’s length.

Can TaxDigit help if I am not based in Guildford?
Yes. We advise on thin capitalisation for clients UK-wide, remotely and from our Guildford office.

The UK’s proposed Multinational and Domestic Top-Up Taxes mark one of the biggest shifts in international tax for years. They form the UK’s implementation of the OECD’s global minimum tax, designed to ensure large groups pay an effective rate of at least 15% wherever they operate.

Multinational and Domestic Top-Up Tax (Pillar Two) advice from TaxDigit

What Are Top-Up Taxes?

The Multinational Top-Up Tax applies to large groups whose profits in a particular jurisdiction are taxed below the 15% minimum, charging an additional ‘top-up’ to bring them up to that level. The Domestic Top-Up Tax applies a similar principle to UK profits, keeping the additional revenue in the UK.

Who Is Affected?

These rules are aimed at large multinational groups above a global revenue threshold. Smaller businesses are generally outside their scope, but affected groups face significant new calculation and reporting obligations.

Preparing for the Changes

Compliance with the multinational top-up tax requires detailed data on effective tax rates across every jurisdiction. Groups should review their structures early, identify low-taxed entities, and ensure the necessary information can be gathered accurately.

How TaxDigit Can Help

Our Guildford-based team helps multinational groups understand and prepare for the top-up tax rules. Get in touch to assess how these changes affect your business.

Top-Up Taxes: UK-Wide Pillar Two Support

The Multinational and Domestic Top-Up Taxes affect large groups based throughout the United Kingdom, not just those near our Guildford head office. TaxDigit helps in-scope groups understand their effective tax rate by jurisdiction and meet the UK’s Pillar Two registration and reporting obligations.

Our chartered certified accountants translate the global minimum tax into practical steps, helping you calculate any top-up charge and integrate it with existing compliance. We support clients UK-wide, remotely and on-site.

Because the regime introduces new concepts such as the GloBE rules, qualifying income and covered taxes, many finance teams are reviewing their data and systems for the first time. Early preparation makes a real difference: gathering jurisdiction-by-jurisdiction figures, agreeing accounting treatment and confirming registration deadlines all reduce the risk of a last-minute compliance scramble. TaxDigit works alongside your in-house team to build a repeatable Top-Up Taxes process rather than a one-off exercise.

It is also worth remembering that Top-Up Taxes interact with existing reliefs and incentives. A jurisdiction that looks low-taxed on paper may benefit from substance-based carve-outs, while generous local credits can affect the effective rate calculation. Getting these details right protects you from both over-paying and under-reporting, and it gives your board confidence that the group’s global minimum tax position is accurate, documented and ready for review.

How we help with Top-Up Taxes

  • Confirming whether your group is within scope of the 15% global minimum tax
  • Calculating the effective tax rate and any Multinational or Domestic Top-Up Tax
  • Registering and reporting Pillar Two top-up taxes with HMRC
  • Modelling the impact on group cash tax and forecasting
  • Coordinating Pillar Two with your wider corporation tax compliance

HMRC explains how to pay these taxes here: HMRC guidance on paying Pillar 2 Top-Up Taxes.

Frequently Asked Questions

What are the Multinational and Domestic Top-Up Taxes?
They are the UK’s implementation of the OECD global minimum tax, ensuring large groups pay an effective rate of at least 15%. The Multinational Top-Up Tax covers overseas profits taxed below 15%, while the Domestic Top-Up Tax keeps any UK top-up in the UK.

Which groups are affected?
The rules target large multinational groups above a global revenue threshold; smaller standalone businesses are generally outside scope.

Can TaxDigit help if I am not based in Guildford?
Yes. We support Pillar Two and Top-Up Tax compliance for clients UK-wide, remotely and from our Guildford office.

If you would like a clear, jargon-free assessment of how the Multinational and Domestic Top-Up Taxes apply to your group, our Guildford-based team is ready to help wherever you operate in the UK. We can scope the work, agree a timeline and keep you compliant year after year.