What happened
On 11 August 2026 Singapore gazetted the Income Tax (International Tax Compliance Agreements) (Crypto-Asset Reporting Framework) Regulations 2026 (S 551/2026), and IRAS issued its first CARF e-Tax Guide. The rules come into force on 1 January 2027.
CARF applies to reporting crypto-asset service providers with a Singapore nexus, such as residence, incorporation, management or a regular place of business here. Those providers must collect information on their users and report transactions in relevant crypto-assets to IRAS, for exchange with other jurisdictions. The timetable:
- Registration: by 31 March 2028 for providers in scope during 2027.
- First return: covering calendar 2027, due by 31 May 2028. Nil returns are required where there is nothing to report.
- Existing customers: self-certifications are due by 31 December 2027. From 1 January 2028, providers may not carry out relevant transactions for a customer who has not provided one.
- Penalties: non-compliance is an offence under section 105M of the Income Tax Act 1947.
Singapore expects to begin CARF exchanges in September 2028, covering calendar 2027 data.
Why it matters
CARF is separate from the Common Reporting Standard, which is being amended from the same date. Some digital assets fall within the amended CRS and others within CARF, and one institution may report under both. Whether a token is in scope depends on its legal and economic features, not its label. Existing AML and CRS processes are a starting point, but they will not automatically capture the data CARF requires.
What to do now
Start with classification: which group entities provide reportable services, which products are relevant crypto-assets and which users are reportable. Then inventory products, counterparties and wallet or account data, and assign ownership of registration and filing. Plan customer outreach for early 2027, ahead of the self-certification deadline. Groups operating in several jurisdictions should check whether another country's CARF rules apply first.
Key resources
General information only; not tax or legal advice.
