Across the major European jurisdictions, the period during which a tax authority may raise an assessment ranges from three years in France to twenty years in the United Kingdom for deliberate non-compliance, with most countries setting a standard window of four to five years. For international groups and founders, understanding exactly when that window opens, what extends it, and how it interacts with transfer pricing or anti-avoidance rules is a core element of tax risk management. Getting this wrong – particularly when restructuring, relocating, or unwinding positions across borders – can leave entities exposed long after they assume a filing is closed.
Why Limitation Periods Matter for Cross-Border Structures
A limitation period (variously called caducidade, prescripción, droit de reprise or simply a statutory time limit) defines the outer boundary of a tax authority's power to raise an assessment or amend a return. Once it expires, the authority loses jurisdiction to act – at least in ordinary circumstances. For groups operating in multiple jurisdictions, the periods rarely align, and a tax audit opened simultaneously in two countries may have very different cut-off dates for the same transaction year.
Three factors most commonly extend a standard period: gross negligence or carelessness, concealment or fraud, and foreign-source income. Each of these can double, triple or – in the UK – extend the window by a factor of five. Transfer pricing adjustments and anti-avoidance rules frequently sit at the intersection of these extension triggers, because the underlying arrangements are often treated as deliberate or at least careless by the auditing authority.
If your group has entities or transactions in more than one of the jurisdictions below, we are glad to assist you map exposure across the full structure. Please reach out to our team or write to info@ferrazwhitmore.com.
Comparison Table: Standard and Extended Assessment Periods (2026)
| Jurisdiction | Standard Period | Extended Period (negligence / fraud) | Special Rule | Key Legal Source |
|---|---|---|---|---|
| Portugal | 4 years | See local advice | – | Art. 45 LGT |
| Spain | 4 years | See local advice | – | Art. 66, General Tax Law 58/2003 |
| France | 3 years | Longer in cases of concealment or fraud | – | Art. L.169 LPF |
| Italy | By 31 Dec of the 5th year after filing | By 31 Dec of the 7th year (no return filed) | Deadline tied to calendar year-end | Art. 43 DPR 600/1973 |
| Germany | 4 years | 5 years (gross negligence); 10 years (tax evasion) | – | Section 169 AO |
| Netherlands | 5 years | See local advice | 12 years for foreign-source income | AWR |
| Luxembourg | 5 years | See local advice | – | See local advice |
| Ireland | 4 years | See local advice | – | S. 959AA TCA 1997 |
| United Kingdom | 4 years | 6 years (carelessness); 20 years (deliberate behaviour) | Applies to both income tax and corporation tax | TMA 1970; FA 1998 Sch 18 |
All figures are drawn from the key facts verified as at 22 September 2026. Where no extended-period figure was available for a jurisdiction, the cell reads "see local advice" rather than a speculative number.
Jurisdiction-by-Jurisdiction Notes
Portugal
Portugal's caducidade of four years under Article 45 of the Lei Geral Tributária (LGT) is a hard outer limit: once it expires, the Autoridade Tributária e Aduaneira loses the power to assess. The period runs from the date on which the tax liability arises or the relevant return is due. Tax structuring decisions that create Portuguese source income or permanent establishment risk should therefore account for the four-year window when modelling exposure. Further detail on Portuguese tax dispute procedure is available from the International Tax Review.
Spain
Spain sets a four-year prescripción under Article 66 of General Tax Law 58/2003. One feature worth noting is that certain administrative actions – including a formal audit notification or a taxpayer's voluntary amendment – can interrupt and restart the limitation clock, effectively extending the practical exposure period beyond the nominal four years. Groups with Spanish entities involved in intercompany transactions should factor this into their transfer pricing documentation strategy.
France
France operates the shortest standard period in this comparison at three years, governed by Article L.169 of the Livre des Procédures Fiscales. However, that period is extended in cases involving concealment or fraud, and French anti-avoidance rules are actively applied in cross-border contexts. A three-year headline figure can therefore be misleading if the underlying tax position touches on arrangements that the Direction générale des finances publiques might characterise as non-compliant.
Italy
Italy's rules under Article 43 of DPR 600/1973 are structured around fixed calendar-year deadlines rather than rolling periods: assessments must be served by 31 December of the fifth year after the return was filed, or by 31 December of the seventh year if no return was filed at all. This structure means that the actual time available to the Agenzia delle Entrate varies depending on when in the calendar year a return is submitted. Further procedural detail is available from Studio Legale Mondello.
Germany
Germany's tiered system under Section 169 of the Abgabenordnung (AO) is one of the most graduated in Europe. The standard four-year period rises to five years for gross negligence (leichtfertige Steuerverkürzung) and to ten years for deliberate tax evasion (Steuerhinterziehung). Given that German tax authorities apply a rigorous audit process to multinational groups, particularly on transfer pricing, the gross-negligence extension is a realistic risk for groups that have not maintained contemporaneous documentation. Full statutory text is available via buzer.de.
Netherlands
The Netherlands stands out in this comparison for its twelve-year period applicable to foreign-source income, a rule that operates under the Algemene Wet inzake Rijksbelastingen (AWR) alongside the standard five-year additional assessment (navordering) period. For groups with Dutch holding or finance companies that receive income from foreign subsidiaries, this extended period significantly lengthens the window during which the Belastingdienst can reopen positions – including those linked to a tax treaty or hybrid instrument. Ferraz & Whitmore advises on Dutch tax dispute matters; further information is at our Netherlands tax disputes page.
Luxembourg
Luxembourg's general limitation period is five years, as recorded by the Administration des contributions directes. Details of extensions for negligence or fraud are subject to national rules; groups with Luxembourg entities – whether holding vehicles, SOPARFI structures or fund management companies – should obtain local advice on how the period interacts with their specific filing history. The official guidance is available from the Administration des contributions directes.
Ireland
Ireland's Revenue Commissioners operate a four-year time limit for raising assessments under Section 959AA of the Taxes Consolidation Act 1997. The period generally runs from the end of the chargeable period to which the assessment relates. Ireland's role as a holding and IP jurisdiction for international groups means that its limitation period is frequently relevant to tax audit exposure arising from transfer pricing adjustments or restructurings.
United Kingdom
The UK system is the most explicitly graduated in this comparison. Under the Taxes Management Act 1970 and Finance Act 1998 Schedule 18, the standard four-year period applies to ordinary cases; six years applies where HMRC considers the taxpayer's behaviour careless; and twenty years applies to deliberate behaviour. The twenty-year window is particularly significant for anti-avoidance assessments, where HMRC characterises the underlying arrangement as intentional non-disclosure. Ferraz & Whitmore handles UK-connected tax dispute matters; see our United Kingdom tax disputes page for further detail.
For cross-border matters that touch the UK alongside other jurisdictions – including comparisons with Hong Kong tax audit procedure – our guide on challenging a tax assessment in Hong Kong may also be of interest.
How to Choose Which Jurisdiction's Period Governs Your Exposure
In a pure domestic situation, this question answers itself. For an international group, however, the same economic event – a management fee, a loan, a royalty, a restructuring – may create filing obligations and potential audit exposure in several jurisdictions simultaneously. A few principles help frame the analysis:
- Each jurisdiction applies its own limitation period independently. A position being time-barred in Germany does not affect the Netherlands' ability to assess the same transaction under its own rules, including its extended twelve-year period for foreign income.
- Transfer pricing adjustments frequently trigger extended periods. Where an authority characterises a pricing policy as the product of gross negligence rather than a bona fide judgment, the longer tier applies – even if the group believed the position was defensible.
- The tax treaty network does not alter domestic limitation periods, although MAP (mutual agreement procedure) timelines may interact with them in practice.
- Anti-avoidance rules can re-characterise a transaction and thereby bring it within an extended period that would not otherwise apply. This is particularly relevant in the UK (deliberate behaviour) and Germany (tax evasion).
- Filing date matters. Italy's calendar year-end structure means the practical length of the assessment window depends on when the return was actually filed.
- For groups with Dutch entities receiving foreign income, the twelve-year period should be treated as the operative planning horizon, not the standard five years.
Common Errors by Foreign Clients
Ferraz & Whitmore regularly advises clients who have encountered one or more of the following misjudgements when managing European tax risk:
- Assuming the shortest period applies. A client that believes France's three-year period is the relevant cut-off may neglect to consider that a related Dutch entity is subject to a twelve-year window for the same cross-border payment.
- Treating the standard period as absolute. In Germany, the UK and France, the extended period triggered by carelessness or concealment is invoked regularly. A group that did not maintain contemporaneous documentation may find itself in the longer tier without having intended non-compliance.
- Ignoring the clock on informal positions. An intercompany arrangement implemented without a formal transfer pricing study is not protected simply because no tax return line item flagged it. Limitation periods run from the filing date; audit risk runs from the moment the transaction is completed.
- Failing to account for interruption or suspension events. In Spain and other jurisdictions, certain procedural steps restart the limitation clock. A group that received a tax authority inquiry letter and treated it as informal correspondence may have inadvertently extended the period.
- Overlooking the Italy calendar-year deadline structure. Clients sometimes count five years from a filing date and conclude they are protected, without noticing that Italy's deadline falls on 31 December of the fifth year – which may be earlier or later than a rolling calculation suggests.
If you are reviewing past filing positions or planning a restructuring and need to map limitation period exposure across European jurisdictions, the Ferraz & Whitmore tax team is available to assist. Please contact us at info@ferrazwhitmore.com or visit our contacts page.
Decision Checklist: Assessing Your Limitation Period Exposure
Before concluding that a past tax position is beyond challenge, work through the following questions for each relevant jurisdiction:
- What is the standard limitation period in that jurisdiction, and from what date does it run?
- Has any authority action – audit notification, information request, formal assessment – interrupted or suspended the period?
- Could the authority characterise the underlying position as the product of negligence, concealment or deliberate behaviour, triggering an extended period?
- Does the position involve foreign-source income (particularly relevant in the Netherlands)?
- Was a return filed on time? If not, does the jurisdiction apply a longer period to unfiled returns (as Italy does)?
- Are there transfer pricing or anti-avoidance aspects that a local authority might use to invoke the extended tier?
- Does a tax treaty or MAP proceeding affect the practical timeline?
- Have the group's advisers in each jurisdiction confirmed in writing that the standard period has run, rather than the extended one?
Sources
- International Tax Review – How to manage a tax dispute in Portugal
- Studio Legale Mondello – Accertamento fiscale: termini di decadenza e difese
- buzer.de – Section 169 Abgabenordnung (AO)
- Administration des contributions directes (Luxembourg) – Délais de recours
Facts last verified: 22 September 2026. This page will be updated as national rules change. For jurisdiction-specific guidance on your situation, please write to info@ferrazwhitmore.com or use our contacts page.
Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. Ferraz & Whitmore assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@ferrazwhitmore.com.