Is Your Business Ready for an IRAS Tax Audit?

Most Singapore SMEs will only think about compliance after they receive the letter. By then, the cost in respect of penalties, stress, and wasted time is already on the table.

This Is Happening Right Now

In Financial Year 2024/25, IRAS audited and investigated over 8,600 businesses with recovering SGD 507 million in taxes and penalties. That is not a cautionary tale from the past. It is last year’s enforcement record, and 2025/26 enforcement activity is expected to be stricter still.

Currently, IRAS uses AI-powered risk-scoring models and real-time e-invoicing data to flag businesses before officers even make contact. By the time the audit letter arrives, IRAS already has a picture of your numbers.

The question is not whether IRAS could audit your business. The question is whether you would pass if they did.

What Actually Triggers an IRAS Audit?

IRAS does not publish its selection criteria, but the following patterns consistently attract attention:

• Revenue or profit margins that deviate significantly from industry benchmarks

• Mismatches between income tax returns, GST filings, and financial statements

• Unusually high expense claims for entertainment, travel, director’s fees, or related-party rentals

• Heavy cash transactions without adequate documentation where it usually happens in F&B, retail and construction

• Persistent late or non-filing history 

• Related-party transactions that do not appear to be at arm’s length

If any of these describe your business right now, you are operating in a higher-risk zone. You have done anything wrong, but because these patterns draw scrutiny.

What Audit-Ready Businesses Do Differently?

Businesses that come through IRAS audits cleanly share three habits:

1. They reconcile tax returns against financial statements and GST filings before every submission (not after).

2. They maintain five years of clean and organised records including the invoices, contracts, bank reconciliations, and expense substantiation.

3. They conduct a proactive tax health check annually, for catching errors while the Voluntary Disclosure Programme (VDP) still applies.

The difference between a business that resolves an audit in two weeks and one that spends six months negotiating additional assessments is almost always preparation, not luck.

Morrison has maintained more than 90% compliance rate across our full client portfolio for corporate secretarial, tax, and GST filings. Our accredited tax advisors can conduct annual tax health checks and prepare clients to respond to IRAS with confidence, not panic.

What to Do Next?

Whether you have just received an IRAS audit notice or you want to get ahead of one, the right move is the same. Please speak to a qualified tax advisor before going to respond.

At Morrison, we support Singapore businesses at every stage of the audit process:

• Pre-audit tax health check and gap analysis of your existing returns

• Voluntary Disclosure Programme (VDP) management to minimise penalties proactively

• Full preparation and submission of all IRAS-requested documentation

• Representation and liaison with IRAS officers throughout the review

• Objection support if you disagree with an assessment outcome

Book a Free Confidential Tax Health Check Today with Morrison. Speak with our tax team before IRAS speaks with you.

Direct IRAS Link for Reference: https://www.iras.gov.sg/news-events/newsroom/iras-annual-report-fy2024-25