Peru Transfer Pricing Requirements in 2026: MLI Ratification, Sunat's Updated MAP Guidance and What Multinationals Must Do Now

Peru transfer pricing requirements have entered a decisive phase in 2026, driven by two converging developments: the practical application of the Multilateral Instrument (MLI) to Peru’s double tax treaty network and the National Superintendence of Customs and Tax Administration’s (SUNAT) updated Mutual Agreement Procedure (MAP) guidance issued in 2026. For multinationals with Peruvian operations, these changes affect how treaty disputes are resolved, how documentation is scrutinised, and how pricing certainty can be secured. This article gives in-house tax directors, CFOs and transfer pricing managers an action-first roadmap rather than a high-level summary, with a clear decision framework for choosing between remedial compliance, an Advance Pricing Agreement (APA) and the mutual agreement procedure.

The verdict is straightforward: most groups should move immediately on documentation while deciding, deliberately, whether an APA or MAP fits their exposure profile.

TL;DR, three defensive plays for 2026:

• Document and comply. Update your transfer pricing policies, master/local file and comparables to reflect the OECD Transfer Pricing Guidelines (2022) and SUNAT’s current expectations, the fastest route to reduced audit risk.
• Evaluate an APA. For high-value, recurring cross-border transactions, a formal APA with SUNAT can deliver prospective pricing certainty across multiple years.
• Use MAP strategically. Where double taxation already exists or a treaty case is live, the mutual agreement procedure, reinforced by SUNAT’s updated guidance and MLI mechanics, is a primary route to bilateral relief.

Recommended first 90-day actions: triage your intercompany transactions by magnitude and risk, refresh contemporaneous documentation, map which treaties are affected by the MLI, and decide which transactions warrant an APA or MAP track.

1. What changed in 2026: MLI application and SUNAT’s updated MAP guidance

The 2026 Peru transfer pricing requirements landscape is shaped by the interaction of treaty-level change (the MLI) and administrative-level change (SUNAT’s MAP guidance). Understanding how these two layers work together is the starting point for any defensive strategy. The MLI modifies the text and interpretation of covered bilateral tax treaties without each treaty being renegotiated individually; SUNAT’s guidance governs how taxpayers actually invoke and run cross-border relief procedures domestically.

MLI, which treaty provisions matter for transfer pricing

The Multilateral Convention to Implement Tax Treaty Related Measures to Prevent BEPS (the MLI) layers a set of standardised provisions over existing double tax treaties (DTTs). Peru signed the MLI, and the precise scope, reservations and entry-into-effect dates for each covered treaty depend on its ratification and deposit position, which should be confirmed against the OECD’s official status page before relying on any specific provision. For transfer pricing purposes, several categories of MLI provision deserve attention:

• Mutual agreement procedure clause. The MLI strengthens and standardises the MAP article, which directly affects how transfer pricing double taxation is resolved between Peru and its treaty partners.
• Permanent establishment and attribution. Changes to PE definitions and the attribution of profits can expand or clarify where profit must be recognised, feeding directly into intercompany pricing and allocation.
• Tie-breaker rules. Dual-residence tie-breaker changes influence which jurisdiction has primary taxing rights, a threshold question in many cross-border pricing disputes.
• Treaty interpretation and anti-abuse. The MLI’s principal purpose test and interpretive provisions affect how SUNAT and foreign authorities read treaty benefits in restructuring and related-party contexts.

Confirm Peru’s ratification position, reservations and the effective dates for each covered treaty against the OECD’s MLI signatories and parties status page before relying on any specific provision, because the MLI applies treaty-by-treaty depending on each partner’s matching positions.

SUNAT’s updated MAP guidance, headline themes

SUNAT’s updated MAP guidance recalibrates how cross-border relief cases are initiated and managed. Multinationals should read the primary text on SUNAT’s official portal carefully, but the practical thrust for Peru transfer pricing requirements centres on several areas:

• Scope. Clarification of which transfer pricing matters and treaty cases qualify for MAP access, including the interaction with domestic administrative procedures.
• Timelines. Expectations around filing windows and the stages of the procedure, which taxpayers must track to avoid forfeiting access.
• Evidence requests. A more structured approach to the documentation SUNAT expects when a MAP request is filed, contemporaneous transfer pricing studies, intercompany agreements and reconciliation of the disputed adjustment.
• Coordination with foreign competent authorities. Guidance on how SUNAT engages counterpart authorities, which bears directly on the realistic timeline and prospects of relief.

Because the MAP clause itself is reinforced by the MLI, the updated guidance and the MLI operate as two halves of the same mechanism: the treaty provides the right, and SUNAT’s guidance defines how Peru administers it. The practical effect, industry observers expect, is a procedure that rewards early, well-documented filings and penalises groups that approach SUNAT without a complete audit file.

2. Immediate compliance actions: updating transfer pricing documentation Peru requires

Whatever strategic track a group ultimately chooses, documentation is the common foundation. Strong, contemporaneous documentation reduces audit risk, supports an APA submission and is indispensable to a credible MAP request. This is the highest-return, lowest-risk action available in 2026, and it should begin immediately.

Country-by-country and master/local file: what SUNAT expects

Peru’s transfer pricing documentation framework follows the OECD three-tiered model, implemented in Peru through the informative affidavit obligations (the Local File, Master File and Country-by-Country reports). Multinationals should ensure each layer is current and internally consistent:

• Master file. Group-level information on the organisational structure, business description, intangibles, intercompany financing and the global allocation of income and economic activity.
• Local file. Transaction-level analysis for the Peruvian entity, including functional analysis, selected methods, comparables and the arm’s-length conclusion for each controlled transaction.
• Country-by-country report. The high-level allocation of revenue, profit, tax and economic activity across jurisdictions, filed in line with the applicable consolidated-revenue threshold set by SUNAT.

Consistency across the three tiers matters more than ever: SUNAT and foreign competent authorities can cross-reference these filings when a MAP is on the table. Any divergence between what the master file says about value creation and what the local file claims about Peruvian functions is an audit flag. The relevant statutory anchors are in Peru’s Income Tax Law provisions on transfer pricing (Articles 32 and 32-A of the Income Tax Law) and the related chapter of its Regulation, verify the current text against the official gazette (El Peruano) before relying on specific wording, as thresholds and formalities are updated periodically.

Adjusting comparables and methods in light of the OECD 2022 Guidelines

The OECD Transfer Pricing Guidelines (2022) remain the authoritative reference for comparability analysis and method selection, and Peruvian rules draw on them. Groups should revisit their benchmarking in several respects:

• Method selection. Reconfirm that the most appropriate method is applied to each transaction type, with documented reasoning for rejecting alternatives.
• Comparability adjustments. Refresh comparable sets, refresh financial data and apply working-capital and other adjustments consistent with the 2022 guidance.
• Intangibles and DEMPE. Ensure the development, enhancement, maintenance, protection and exploitation of intangibles is analysed and that returns follow substance, not merely legal ownership.
• Intra-group services and financing. Apply the Guidelines’ treatment of low value-adding services and intercompany financing, which are frequent audit targets. Note that Peru also applies specific rules, including a benefit test, to services between related parties.

Practitioners generally recommend re-running benchmarks annually rather than rolling forward prior studies, because stale comparables are among the most common and most easily avoided weaknesses in a Peruvian transfer pricing file.

Practical 90-day checklist

For transfer pricing compliance Peru teams can execute in the first quarter of engagement:

1. Inventory controlled transactions (owner: TP manager). List every intercompany flow with value, counterparty jurisdiction and treaty status.
2. Risk-score each transaction (owner: TP manager + tax director). Rank by magnitude, recurrence and double-taxation exposure.
3. Gather contemporaneous evidence (owner: finance). Intercompany agreements, invoices, accounting reconciliations and board approvals.
4. Refresh the local and master file (owner: external advisor + TP manager). Update functional analysis, comparables and economic analysis.
5. Map MLI-affected treaties (owner: tax director). Identify which counterparties’ treaties are modified and the effective dates.
6. Secure internal approvals (owner: CFO). Sign off the updated policy and document the governance trail.

The submission trigger for each item is clear: documentation should be in place before any SUNAT information request, APA pre-filing meeting or MAP request, never assembled reactively.

3. When to consider an APA in Peru: decision factors and timeline

An Advance Pricing Agreement converts uncertainty into prospective certainty. For the right transactions it is a strong defensive tool, but it is resource-intensive and not suited to every situation. In Peru, the APA programme is administered by SUNAT and, to date, is limited to transfer pricing matters. The APA Peru decision turns on the magnitude, recurrence and cross-border risk of the transactions in question.

APA scope in Peru and limits

An APA fixes the transfer pricing methodology for specified controlled transactions over a defined future period, agreed in advance with SUNAT. It is prospective by nature: it governs the covered transactions for the APA period rather than resolving historic adjustments, though Peruvian rules may allow it to cover the year of the agreement and subsequent years. Groups should treat it as a certainty instrument for the future, not a cure for past exposure, and should scope it precisely to the transactions where certainty delivers the most commercial value.

Commercial scenarios favouring an APA

An APA tends to justify its cost and effort in these scenarios:

• High-value recurring transactions. Where the same intercompany flow repeats year after year, prospective certainty compounds in value.
• Complex or novel transactions. Intangible licensing, intra-group financing or business restructurings where method selection is contestable.
• Material double-taxation risk. Where the transaction straddles jurisdictions with a history of adjustment.
• Audit-sensitive profiles. Where the Peruvian entity’s margins have drawn, or are likely to draw, SUNAT scrutiny.

Conversely, one-off, low-value or easily benchmarked transactions rarely warrant the APA process, remedial compliance is the more proportionate response there.

APA process, typical timeline and costs

An APA in Peru follows a staged path: pre-filing engagement with SUNAT, formal application with a full functional analysis and financial forecasts, review and negotiation, and conclusion. APAs may be unilateral or, where a treaty allows, bilateral. Groups should plan for a multi-month process, with complexity, counterparty coordination and completeness of the file all affecting duration, and budget for meaningful advisor fees and internal data-gathering effort. The cost is real, but so is the payoff: a properly scoped APA can prevent adjustments and penalties for the covered period and remove recurring disputes from the agenda. Confirm current procedural rules and filing requirements against SUNAT’s official APA programme information before committing.

4. Using MAP after SUNAT’s updated guidance: tactics, timeline and evidence

The mutual agreement procedure Peru taxpayers rely on is the treaty mechanism for eliminating double taxation when a transfer pricing adjustment in one country is not matched by a corresponding adjustment in the other. SUNAT’s updated MAP guidance, reinforced by the MLI’s strengthened MAP clause, affects how these cases should be run.

How the updated guidance affects MAP submissions and SUNAT behaviour

The SUNAT MAP guidance reframes the procedure in ways that reward preparation:

• Clearer access rules. Taxpayers can better assess at the outset whether a given adjustment qualifies for MAP and how it interacts with domestic remedies.
• Structured evidence expectations. SUNAT signals the documentation it expects up front, which means an incomplete file can delay or undermine the request from day one.
• Defined coordination with counterpart authorities. The guidance describes how SUNAT engages foreign competent authorities, giving taxpayers a realistic view of the path and cadence of a case.

The likely practical effect is that MAP outcomes will increasingly favour groups that arrive with a complete, contemporaneous audit file and a coherent treaty argument, and will frustrate those who treat MAP as a last-minute option.

Tactical steps for a strong MAP

To build a MAP request that stands the best chance of relief:

1. Assemble the complete audit file early. Contemporaneous transfer pricing studies, intercompany agreements, the assessment or adjustment notice and reconciliation of the disputed amounts.
2. Time the filing deliberately. Track the treaty and guidance timelines so the request is lodged within the permitted window, missing it can forfeit access entirely.
3. Manage parallel administrative procedures. Coordinate any domestic appeal with the MAP request so the two tracks do not undermine each other.
4. Avoid waiver traps. Be alert to settlements or domestic procedural steps that can inadvertently waive the right to treaty relief, one of the most damaging and avoidable MAP errors.

Coordination with foreign competent authorities

A MAP is, by definition, a two-authority process. Relief depends on SUNAT and the counterpart competent authority reaching agreement; the standard MAP clause obliges the authorities to endeavour to resolve the case but does not guarantee an outcome. Taxpayers should file consistent, mutually reinforcing submissions in both jurisdictions, keep the factual narrative identical on both sides, and maintain a single coordinated evidence package. Where a treaty, as modified by the MLI, provides for mandatory binding arbitration, consider whether that option strengthens the group’s position if the two authorities cannot agree within the expected period, confirming whether Peru and the relevant partner have adopted the arbitration provisions.

5. Comparison and decision framework: remedial compliance vs APA vs MAP

The three defensive tracks are not mutually exclusive, remedial compliance underpins both of the others, but a group must decide where to concentrate effort and budget. The table below compares them dimension by dimension so you can match the tool to the exposure. Timeframes and costs are indicative only and vary with case complexity.

Decision framework:

• Choose Option A (Remedial compliance) when exposures are moderate, the group needs rapid risk reduction, or documentation gaps are the main issue. This is the default starting point for every group in 2026.
• Choose Option B (APA) when transactions are high-value or recurrent, you need prospective certainty across multiple years, and you can commit the time and resources to the process.
• Choose Option C (MAP) when there is existing double taxation or a formal treaty case, bilateral relief is the goal, or you have exhausted, or are running in parallel with, domestic remedies.

6. Implementation roadmap and sample timeline for 2026

A sequenced roadmap keeps the three tracks coordinated and ensures documentation work feeds whatever strategic decision follows. Assign named owners and escalation triggers at each stage.

0–90 days: triage and documentation updates

• Owner: Tax director / TP manager. Complete the controlled-transaction inventory and risk-scoring.
• Owner: External advisor. Refresh the master and local file and re-run benchmarks against the OECD 2022 Guidelines.
• Owner: Tax director. Map MLI-affected treaties and effective dates.
• Escalation trigger: any transaction scored high-risk is flagged to the CFO for an APA/MAP decision.

Months 3–9: decide APA vs MAP and start the chosen track

• Owner: CFO + tax director. Apply the decision framework to each high-risk transaction.
• Owner: External advisor. If an APA is chosen, open pre-filing engagement with SUNAT and prepare forecasts and functional analysis.
• Owner: Tax director. If MAP is the route, confirm treaty access, assemble the audit file and lodge the request within the permitted window.
• Governance checkpoint: board or tax-committee sign-off before any formal filing.

Beyond 9 months: MAP lifecycle and monitoring

• Owner: External advisor + tax director. Manage the competent-authority process, respond to information requests and keep both jurisdictions’ submissions aligned.
• Owner: Finance. Monitor the financial exposure and provisioning while the case runs.
• Escalation trigger: if authorities stall beyond expected timelines, assess any available arbitration options under the applicable treaty.

7. Practical examples and common pitfalls

Example 1, documentation update reduces audit exposure

A multinational with recurring intercompany services into Peru refreshed its local file, re-benchmarked comparables under the OECD 2022 Guidelines and reconciled its intercompany agreements before SUNAT opened an information request. Because the file was contemporaneous and internally consistent with the master file, the review closed without a material adjustment. The lesson: proactive remedial compliance is the cheapest and most reliable form of defence, and it should precede, not follow, SUNAT contact.

Example 2, failed MAP for lack of contemporaneous evidence

A group facing a Peruvian adjustment filed a MAP request but could not produce contemporaneous documentation for the disputed year, and had earlier taken a domestic step that compromised its treaty position. The competent authorities could not reconcile the facts, and the case stalled. The lesson: MAP success depends on a complete audit file assembled in real time and on scrupulous avoidance of waiver traps. Late disclosures and inconsistent cross-border narratives are among the most common reasons MAP cases fail to deliver relief.

Sources

1. OECD, Multilateral Convention (MLI) overview and status
2. OECD, BEPS MLI signatories and parties (status and provisional application dates)
3. OECD, Transfer Pricing Guidelines (2022)
4. SUNAT, National Superintendence of Customs and Tax Administration (Peru)
5. El Peruano, Official Gazette (laws and ratifications)
6. Congress of the Republic of Peru, Official parliamentary documents