If your Singapore company has transactions with related parties — parent companies, subsidiaries, associated entities, or even directors who are also shareholders — you are operating in transfer pricing territory. Transfer pricing is not just a concern for multinationals. Any Singapore company that charges, receives, or shares costs with a related party must ensure those transactions are priced on an arm’s length basis, or risk IRAS adjustments, surcharges, and penalties.

Yet transfer pricing documentation remains one of the most widely misunderstood compliance obligations for Singapore SMEs and mid-sized businesses. Many directors assume it applies only to large listed groups. It does not. This guide explains what Singapore’s transfer pricing rules require, who must prepare documentation, what the 2026 threshold changes mean for your company, and how to manage the obligation practically.

What Is Transfer Pricing?

Transfer pricing refers to the prices set for transactions between related parties — for example, a Singapore subsidiary paying management fees to its foreign parent, a Singapore holding company charging rent to its operating subsidiary, or two sister companies providing services to each other. Because related parties do not negotiate at arm’s length the way independent parties would, there is a risk that prices are set in a way that shifts taxable profits to lower-tax jurisdictions.

Singapore’s transfer pricing framework is found in Section 34D of the Income Tax Act 1947 and administered by the Inland Revenue Authority of Singapore (IRAS). IRAS requires that all related party transactions be priced as if the parties were independent entities dealing at arm’s length. Where IRAS determines that the price departs from this standard, it may make a transfer pricing adjustment — increasing the taxable income of the Singapore entity and potentially imposing a 5% surcharge on the adjusted amount.

Who Must Comply: The Arm’s Length Principle Applies to All Related Parties

The arm’s length requirement applies to every Singapore company that transacts with a related party. IRAS defines a “related party” broadly: two entities are related if one controls the other, or both are controlled by a common third party. This includes:

  • A Singapore subsidiary and its foreign holding company
  • Two Singapore companies under the same ultimate parent
  • A company and its major shareholder (particularly where the shareholder also provides services to the company)
  • A company and a trust of which a major shareholder is the settlor or beneficiary

The arm’s length standard applies regardless of whether transactions cross borders. Domestic related party transactions must also comply, though IRAS focuses its enforcement effort primarily on cross-border transactions where profits may be shifted offshore.

Transfer Pricing Documentation: Who Must Prepare It?

Not every company must prepare formal transfer pricing documentation (TPD). IRAS provides exemptions based on the size of the company and the size of individual transactions. The updated thresholds for Year of Assessment (YA) 2026 and beyond are as follows:

Exemption from Transfer Pricing Documentation

You are exempt from preparing TPD if your company’s gross annual revenue from trade or business is below S$10 million for the financial year in question. This exemption applies regardless of the size of your related party transactions, provided you still price transactions on an arm’s length basis.

Even if your revenue exceeds S$10 million, certain transaction-level exemptions apply. For YA 2026 onwards, the transaction threshold below which documentation is not required has increased from S$1 million to S$2 million for the following categories:

  • Provision or receipt of services
  • Provision or receipt of financial assistance (loans)
  • Licensing or use of intangibles
  • Any other transactions (excluding the purchase or sale of goods)

The purchase and sale of goods between related parties continues to attract a separate S$15 million threshold per the IRAS Transfer Pricing Guidelines.

When Must Documentation Be Ready?

Transfer pricing documentation must be prepared by the time you file your Form C or Form C-S for the relevant year of assessment — that is, by 30 November of each year. You do not submit the documentation with your tax return, but you must have it ready to produce if IRAS requests it. Documentation must be retained for at least five years.

The Arm’s Length Methods: How to Price a Related Party Transaction

IRAS accepts the five standard OECD methods for establishing an arm’s length price. In practice, most Singapore SMEs use one of the first three:

1. Comparable Uncontrolled Price (CUP)

Compare the related party transaction price to the price charged in a comparable transaction between independent parties. This is the most direct method but requires a genuine comparable — either from within your own transactions (internal CUP) or from market data (external CUP).

2. Cost Plus Method

Determine the cost of providing a service or producing a product, then add an arm’s length mark-up. IRAS accepts a 5% cost mark-up safe harbour for routine support services provided between related parties, where the service is of low value and not a core business activity. Examples include administrative support, payroll processing, IT helpdesk, and accounting services shared across group entities.

3. Transactional Net Margin Method (TNMM)

Compare the operating profit margin of the tested party against comparable independent companies. TNMM is the most commonly used method in practice due to its flexibility and the availability of commercial databases of company financial data. If you are a Singapore operating subsidiary performing routine functions, your profit margin should fall within the range earned by independent comparable companies performing similar functions.

Intercompany Loans: The IRAS Indicative Margin

Intercompany loans are among the most common related party transactions for Singapore holding company structures. IRAS publishes an annual Indicative Margin rate — a safe harbour interest rate that companies may apply to domestic-currency related party loans without preparing full TPD. For loans denominated in Singapore dollars, the Indicative Margin serves as a proxy for the arm’s length interest rate; using it eliminates the need to benchmark the interest rate against external loan data.

The Indicative Margin is updated annually and published on the IRAS website. For loans denominated in foreign currencies, you must benchmark the rate independently — typically by reference to the relevant interbank offered rate plus an appropriate credit spread.

For more on the tax treatment of loans between related parties, including the rules on thin capitalisation and Section 14(1)(a) deductibility of interest, see our guide to shareholder loans and tax compliance in Singapore.

The Simplified Streamlined Approach (SSA): New from 2026

From 1 January 2026, IRAS has introduced the Simplified Streamlined Approach (SSA) on a pilot basis running until 31 December 2028. The SSA is an optional safe harbour for companies performing qualifying routine functions — specifically, distribution and marketing support services that meet defined conditions on functional profile, revenue size, and assets employed.

Under the SSA, qualifying companies that adopt IRAS’s prescribed operating margin range are deemed to satisfy the arm’s length standard for those transactions during the pilot period. This significantly reduces the benchmarking and documentation burden for companies that qualify. Whether the SSA is appropriate for your group structure requires careful analysis against IRAS’s published conditions.

IRAS Transfer Pricing Adjustments and Penalties

Where IRAS determines that a related party transaction was not priced at arm’s length, it may make an upward adjustment to the Singapore entity’s income — effectively attributing to Singapore the profits that would have been earned had the transaction been at arm’s length. A 5% surcharge applies automatically on the adjustment amount, unless the company can demonstrate that it made a reasonable effort to comply with the arm’s length standard.

In serious cases — for example, where documentation was not prepared, or where pricing was deliberately structured to shift profits — IRAS may impose penalties of up to 400% of the tax undercharged and may refer the matter for criminal investigation. Directors of Singapore companies found to have knowingly participated in transfer pricing manipulation face personal liability.

To understand your broader exposure as a director, see our guide on director disqualification and personal liability under CALA 2025.

Advance Pricing Arrangements (APAs): Certainty for Recurring Transactions

If your company has significant ongoing related party transactions — for example, a long-term services agreement or a royalty arrangement with a parent company — you may wish to apply for an Advance Pricing Arrangement (APA) with IRAS. An APA is a binding agreement on the transfer pricing methodology to be applied to specific transactions over a fixed period (typically three to five years).

APAs eliminate the risk of post-filing IRAS adjustments for covered transactions and can be bilateral (agreed between IRAS and the tax authority of the counterparty’s jurisdiction) to prevent double taxation. The APA application process requires detailed economic analysis and negotiation with IRAS, typically handled by specialist transfer pricing advisers.

Practical Steps: What Your Singapore Company Should Do Now

If your company has related party transactions, here is a practical compliance checklist:

  1. Map your related party transactions. List every intra-group transaction for the financial year — management fees, intercompany loans, royalties, shared services, goods traded between group entities.
  2. Check the exemption thresholds. If your revenue is below S$10 million, you are exempt from preparing formal TPD but must still price transactions at arm’s length. If any individual transaction type exceeds S$2 million (or S$15 million for goods), documentation is required.
  3. Select the appropriate pricing method. For routine services, consider the 5% cost-plus safe harbour. For loans, apply the IRAS Indicative Margin for SGD-denominated transactions.
  4. Prepare documentation before filing. If documentation is required, have it ready by 30 November of the relevant year. Retain for five years.
  5. Assess the SSA pilot. If your entity performs qualifying routine distribution or marketing support functions, evaluate whether the SSA safe harbour is available and appropriate.
  6. Consider an APA for complex ongoing transactions. If your group has large, recurring, cross-border related party transactions, an APA provides long-term certainty.

Maintaining proper transfer pricing policies is also an important part of overall corporate tax compliance in Singapore. For broader Singapore business regulatory updates, there are useful resources available for directors and finance teams.

Where your transfer pricing structure involves significant cross-border complexity, good financial planning and investment decisions at the group level are equally important to ensure capital is deployed in a tax-efficient and compliant manner.

If you need legal advice on transfer pricing disputes or IRAS assessments, we can point you in the right direction.

How Raffles Corporate Services Can Help

Transfer pricing compliance requires a clear understanding of your group structure, your functional profile, and the available methods and exemptions. Raffles Corporate Services assists Singapore companies in reviewing their related party transactions, assessing documentation obligations, preparing intercompany agreements, and identifying where safe harbour treatments apply. We also work with specialist transfer pricing advisers on complex cross-border structures.

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