Singapore Transfer Pricing Documentation 2026: IRAS Requirements and How to Comply

Transfer pricing is the process by which related companies — such as a Singapore parent and its overseas subsidiary, or two companies in the same group — determine the prices charged for transactions between them. When a Singapore company buys services from a related company in a lower-tax jurisdiction, or sells goods to a related party in a high-tax country, the price set for those transactions has direct consequences for how much taxable income is recognised in each jurisdiction.

The Inland Revenue Authority of Singapore (IRAS) requires companies above certain thresholds to maintain contemporaneous transfer pricing documentation (TPD) demonstrating that their related-party transactions are conducted at arm’s length — that is, on terms that would have been agreed between unrelated parties dealing at arm’s length. This guide explains who must maintain TPD, what it must contain, and what changed for Year of Assessment (YA) 2026.

The Legal Framework: Section 34D of the Income Tax Act

Singapore’s transfer pricing rules are codified in Section 34D of the Income Tax Act 1947 and the Income Tax (Transfer Pricing Documentation) Rules 2018. The rules apply the arm’s length standard: related-party transactions must be priced as if they were conducted between independent parties dealing at arm’s length.

IRAS supplements the statutory rules with its Transfer Pricing Guidelines, which are periodically updated. The current guidelines (8th edition) provide detailed guidance on the five OECD-recognised transfer pricing methods and the documentation standards IRAS expects. IRAS also participates in the OECD’s Base Erosion and Profit Shifting (BEPS) initiatives, including Country-by-Country Reporting for large multinational groups.

For a broader overview of Singapore corporate tax obligations, see our Singapore corporate tax 2026 guide.

Who Must Prepare Transfer Pricing Documentation?

TPD is mandatory for a Singapore taxpayer if it meets BOTH of the following conditions for the relevant financial year:

• Gross revenue exceeds S$10 million from trade or business, AND
• Related-party transaction values exceed the applicable thresholds for each transaction category (see below)

The threshold structure is important. TPD is not required simply because you have related-party transactions — it is only required when BOTH the revenue threshold AND the transaction-category thresholds are met.

Transaction Category Thresholds for YA 2026

The following thresholds apply. A key change effective from YA 2026 is that thresholds for most transaction categories were increased from S$1 million to S$2 million:

In practice, the S$2 million threshold for services, management fees, and IP licensing is the one most commonly triggered for Singapore SMEs and mid-sized companies that have overseas subsidiaries or share services across a corporate group. If your company pays or receives more than S$2 million per year in management fees, royalties, or services charges to or from related parties, and your gross revenue exceeds S$10 million, you must prepare TPD.

What Contemporaneous Means: Timing Requirements

IRAS requires that TPD be prepared on a contemporaneous basis — that is, it must be completed by the time the relevant tax return (Form C or Form C-S) is filed for that Year of Assessment. You cannot prepare TPD retrospectively after an IRAS audit or query. The contemporaneity requirement means the documentation must reflect the analysis conducted at the time the transactions were entered into or priced, not a reconstruction performed later.

In practice, this means Singapore companies should have their TPD completed before or at the same time they prepare their annual financial statements and tax computations. For a company with a 31 December financial year end, the YA 2026 tax return is due by 30 November 2026 — TPD must be ready by then.

What TPD Must Contain: The Six Core Components

IRAS’s documentation requirements largely mirror the OECD’s Local File standard. Your TPD package should include:

1. Business Description and Group Structure

A description of the Singapore taxpayer’s business, its industry, its products and services, and its position within the group. This includes a group organisation chart showing the ownership structure and the jurisdictions where related entities operate.

2. Controlled Transactions Being Documented

A clear list of all related-party transactions for which TPD is being prepared, with amounts, currencies, counterparties, and the jurisdiction of each counterparty.

3. Functional Analysis

An analysis of the functions performed, assets used, and risks assumed by each party to the transaction (the “FAR” analysis). This is the analytical core of the TPD — it explains why the pricing is appropriate given each party’s contributions. A party that performs more functions, uses more assets, or bears more risk should generally receive more compensation.

4. Transfer Pricing Method and Benchmarking

The most appropriate transfer pricing method for each transaction type, and the benchmarking analysis supporting the arm’s length range. IRAS recognises five methods: Comparable Uncontrolled Price (CUP), Resale Price Method, Cost Plus Method, Transactional Net Margin Method (TNMM), and Profit Split Method. TNMM is the most commonly used in Singapore practice, particularly for services and IP transactions.

Benchmarking typically involves a search of comparable companies or transactions using commercial databases (such as Bureau van Dijk’s Orbis), which must be updated periodically — IRAS guidance recommends at least every three years, with annual price adjustments.

5. Financial Information

Relevant financial data — the Singapore taxpayer’s segmented P&L for the controlled transactions, and comparable companies’ financial data used in the benchmarking.

6. Intercompany Agreements

Copies of the relevant intercompany agreements (service agreements, loan agreements, IP licensing agreements, management service agreements) that govern the transactions being documented.

YA 2026 Changes: Raised Thresholds and New Simplified Arm’s Length Approach

Two changes took effect from YA 2026:

Raised service and other transaction thresholds. The threshold for all transactions other than goods and loans was increased from S$1 million to S$2 million per year. This reduces the TPD preparation burden for companies with moderate-scale intercompany service arrangements that previously triggered the documentation requirement.

Simplified Arm’s Length Approach (SAA) pilot. IRAS is implementing a Simplified Arm’s Length Approach for routine low-value-adding services on a pilot basis from 1 January 2026 to 31 December 2028. Under the SAA, companies can apply a 5% cost mark-up for eligible intragroup services without a full benchmarking analysis. This simplifies documentation for routine shared services (accounting, HR, IT, legal) charged between related companies at cost-plus-5%.

Penalties for Non-Compliance

If IRAS adjusts a taxpayer’s income upward as a result of a transfer pricing audit (a “transfer pricing surcharge”), a 5% surcharge applies on top of the tax on the adjusted income under Section 34F of the Income Tax Act. This surcharge is not tax-deductible. The surcharge applies regardless of whether the taxpayer had a bona fide belief that its pricing was arm’s length — the failure to maintain adequate TPD is itself the trigger.

Additionally, IRAS may impose penalties for late or inaccurate tax returns where the transfer pricing issue results in an underpayment of tax. The existence of contemporaneous TPD that demonstrates a genuine arm’s length analysis — even if IRAS ultimately disagrees with the conclusion — is a significant mitigating factor in any penalty assessment.

Advance Pricing Arrangements (APAs)

Companies with significant related-party transactions may wish to consider applying to IRAS for an Advance Pricing Arrangement (APA). An APA is a bilateral agreement between IRAS, the taxpayer, and the tax authority in the counterparty jurisdiction, fixing the transfer pricing methodology for a defined period (typically three to five years). APAs eliminate the uncertainty of a subsequent transfer pricing audit for the covered transactions.

Singapore also offers unilateral APAs — an agreement with IRAS alone, without the counterparty jurisdiction — for situations where bilateral APAs are not practical. An APA application requires significant preparation time and professional resources, but provides strong certainty for large or complex related-party transactions.

For more on Singapore tax obligations broadly, including GST, withholding tax, and corporate income tax, see our withholding tax guide and GST registration guide.

For detailed IRAS guidance, visit IRAS’s transfer pricing page and refer to the Transfer Pricing Guidelines (8th edition).

Beyond tax compliance, sound financial management and investment decisions are important considerations for business owners managing cross-border group structures.

If you need legal or tax advice on your transfer pricing arrangements, we can point you in the right direction.

To speak with the team at Raffles Corporate Services, you can email [email protected] or call, SMS, or WhatsApp +65 8501 7133. We are happy to assist with any queries.

— The Editorial Team, Raffles Corporate Services