OECD TP Guidelines · United Kingdom

Transfer Pricing Tool
for United Kingdom

United Kingdom transfer pricing rules, documentation requirements, and penalty regime. Free OECD-compliant benchmarking tool with arm's length range analysis.

OECD TPG · LIVEv2026.04TNMM

Arm's length range, documented.
Not just benchmarked.

Session
0x230C
Entity
FY 2026
Comparables
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inputs.conf
comparable_set.json
methodology.conf
01// engagement— OECD TPG ¶1.33-1.38
02entity_name=
03jurisdiction=
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08// method— OECD TPG Ch. II
09tp_method=
10profit_level_indicator=
formula: Operating Profit / Revenue
11// financials— tested party P&L
12revenue=€
13cogs=€
14opex=€
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16// comparable_set— OECD ¶3.35-3.54 · min 3, 6+ recommended
17iqr_standard=
Company nameOperating Margin%Year
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18// functional_analysis— OECD ¶1.51-1.106 (FAR)
Functional analysis coverage (tick each confirmed):
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Functional analysis · FAR + DEMPE (OECD ¶1.51-1.106)
19// method_selection_rationale— OECD Ch.II · most appropriate method
Method-selection criteria addressed:
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Method selection · OECD Ch.II most-appropriate-method
20// comparable_search_strategy— OECD Ch.III · database + screens
Search strategy documentation (OECD ¶3.31-3.54):
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Comparable search · OECD Ch.III (database + screens + rejection log)
21// comparability_adjustments— OECD ¶3.50-3.54
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Comparability adjustments · OECD ¶3.50-3.54
22// trend_analysis— OECD ¶3.75-3.79 · multi-year data
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Trend analysis · multi-year data (OECD ¶3.75-3.79)
23// documentation_tier— OECD Ch.V · BEPS Action 13
Three-tier documentation (BEPS Action 13):
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Documentation tier · Master file + Local file + CbCR (BEPS Action 13)
24// risk_warnings— rule engine · ISA 550 / OECD
Only 0 comparables in the final set — OECD ¶3.56 recommends a broader sample (typically 6+) to reduce selection bias.
OECD ¶3.56
No functional-analysis items confirmed — OECD ¶1.51 requires FAR analysis to establish comparability.
OECD ¶1.51
Risk warnings · 7-rule engine (ISA 550 / OECD)
25// disclosure_and_conclusion— IAS 24.18 · IFRS 12
Tick disclosure items addressed in FS notes:
80IAS 24.13-14
81IAS 24.18(a)
82IAS 24.18(b)
83IAS 24.18(c)-(d)
84IAS 24.23
85IAS 24.17
86IAS 24.13
87IAS 1.122
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Disclosure + conclusion · IAS 24.18 + IFRS 12
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Arm's Length Status
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Interquartile Range
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Adjustment
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IQR-based
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Transfer pricing in United Kingdom

The United Kingdom applies transfer pricing rules through Part 4 of the Taxation (International and Other Provisions) Act 2010 (TIOPA 2010), which implements the arm's length principle in line with OECD Transfer Pricing Guidelines. UK transfer pricing rules apply to all cross-border transactions between connected parties where the actual provision differs from the arm's length provision. Importantly, UK rules also apply to domestic transactions in certain circumstances — particularly where one party benefits from a tax advantage (e.g., loss relief or tax-exempt status). HMRC follows OECD Guidelines closely, and the UK does not deviate from the standard interquartile range methodology (25th–75th percentile).

The UK does not have a standalone TP documentation requirement with specific filing deadlines or penalties for non-preparation. Instead, HMRC expects companies to maintain sufficient records to demonstrate that their transfer pricing is arm's length. In practice, medium and large enterprises should prepare TP documentation contemporaneously — meaning at the time the tax return is filed, not retrospectively when queried by HMRC. The UK adopted the OECD's Country-by-Country Reporting (CbCR) requirements for groups with consolidated revenue exceeding £750 million, and Master File/Local File requirements broadly follow OECD Chapter V guidance, although there is no formal legislative requirement to prepare a separate Master File and Local File document in the prescribed OECD format.

HMRC audit triggers for transfer pricing include: significant related-party transactions visible in the tax return, inconsistencies between CbCR data and local entity profitability, persistent losses in the UK entity while the group is profitable, sudden changes in profitability without commercial justification, IP migration into or out of the UK, and intercompany loan arrangements with rates significantly above or below market. The UK also has Diverted Profits Tax (DPT) at 25% (31% from April 2023), which targets arrangements that artificially divert profits from the UK — this can apply where transfer pricing is non-arm's length. Companies should consider DPT exposure alongside standard TP compliance.

United Kingdom TP quick reference

Local TP Legislation
Taxation (International and Other Provisions) Act 2010 (TIOPA 2010), Part 4
Tax Authority
HMRC (His Majesty's Revenue and Customs)
Documentation Threshold
No de minimis threshold — TP rules apply to all UK companies with cross-border related-party transactions. However, HMRC's practical approach focuses on medium and large enterprises. Small companies (turnover <£10M) are lower priority but not exempt.
Percentile Range
25th–75th percentile
Penalty Regime
HMRC can impose tax-geared penalties for inaccuracies in tax returns arising from non-arm's length pricing. Penalties range from 0% (reasonable care taken) to 30% (careless) to 70% (deliberate) of the additional tax. Having contemporaneous TP documentation is the strongest defence against penalties. No standalone TP documentation penalty — penalties arise through the tax return accuracy regime.

Common TP audit triggers in United Kingdom

Significant related-party transactions visible in corporation tax return

CbCR data showing low UK profitability relative to functions and risks

Persistent losses in UK entity while group is profitable

IP migration into or out of the UK

Intercompany loan rates significantly above or below market

Large intercompany management fee charges reducing UK taxable profit

DPT notification triggers (insufficient economic substance)

United Kingdom vs. OECD guidelines: key differences

The UK largely follows OECD Guidelines without significant deviations. Key differences: (1) DPT creates an additional layer beyond standard TP rules; (2) no formal statutory Master File/Local File requirement; (3) TP rules can apply to domestic transactions where a tax advantage arises; (4) the UK's focus on 'economic substance' through HMRC's Transfer Pricing Manual (INTM) goes beyond OECD guidance in some areas.

Frequently asked questions: United Kingdom transfer pricing

What are the UK transfer pricing documentation requirements?
The UK does not have a formal statutory requirement to prepare a Master File and Local File in the OECD-prescribed format. However, HMRC expects companies to maintain sufficient records to support their arm's length pricing. In practice, preparing documentation that follows the OECD Chapter V framework (Master File + Local File) is strongly recommended and provides the best defence against penalties.
When must I file TP documentation in the UK?
Documentation should be prepared contemporaneously — at the time the tax return is filed (typically 12 months after the accounting period end). There is no separate TP documentation filing deadline, but HMRC can request documentation during an enquiry and expects it to be available promptly.
What are the penalties for TP non-compliance in the UK?
Penalties are tax-geared and arise through the tax return accuracy regime. If HMRC determines that a TP adjustment is required, penalties can range from 0% (where reasonable care was taken, evidenced by contemporaneous documentation) to 30% (careless) to 70% (deliberate) of the additional tax. Having robust documentation is the best penalty protection.
What is Diverted Profits Tax and how does it relate to TP?
DPT (at 25-31%) targets arrangements that lack economic substance or involve entities with insufficient people functions. It applies where profits are diverted from the UK through non-arm's length pricing or where a UK PE is artificially avoided. DPT creates a higher effective rate than standard corporation tax, incentivising arm's length transfer pricing.
Does the UK follow OECD interquartile range methodology?
Yes. The UK follows OECD Guidelines closely, including the use of the interquartile range (25th–75th percentile) for benchmarking. Where the tested party's result falls outside the IQR, HMRC will typically argue for adjustment to the median.

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