Compliance
Singapore’s NSman Tax Relief Correction: What Affected Taxpayers Need to Know
IRAS and MINDEF have corrected NSman tax relief miscalculations affecting 15,000 taxpayers for YA 2025 and 2026—here’s how to see if you’re impacted and what action to expect.
By NomadicTax Research Team • 5-8 min read • September 8, 2026
## What Happened
On 3 September 2026, the Singapore Ministry of Defence (MINDEF) and the Inland Revenue Authority of Singapore (IRAS) issued a joint media release confirming that an error in MINDEF’s system resulted in **incorrect NSman (National Service) tax relief amounts** being applied for approximately **15,000 taxpayers** across YA (Year of Assessment) 2025 and 2026. ([iras.gov.sg](https://www.iras.gov.sg/news-events/newsroom/mindef-iras-clarification-on-correction-of-nsman-tax-relief-records?utm_source=openai))
The miscalculations were due to system-generated activity records that didn’t accurately reflect NS commitments. MINDEF identified these issues in May 2026 and subsequently reviewed and corrected all affected records, working closely with IRAS to ensure the proper tax relief amounts would be reflected in revised Notices of Assessment (NOAs). ([iras.gov.sg](https://www.iras.gov.sg/news-events/newsroom/mindef-iras-clarification-on-correction-of-nsman-tax-relief-records?utm_source=openai))
## Who’s Affected & How It’s Being Corrected
- Of the 15,000 taxpayers, about **7,000** will face **increased tax liabilities**, while around **8,000** will receive refunds.
- The **net adjustments** are expected to be modest: many will see either upward or downward adjustments **of less than SGD 200**, though some may see changes up to about **SGD 900** depending on income bracket and relief entitlement. ([iras.gov.sg](https://www.iras.gov.sg/news-events/newsroom/mindef-iras-clarification-on-correction-of-nsman-tax-relief-records?utm_source=openai))
- IRAS will issue **revised Notices of Assessment by September 2026**, with refunds or additional taxes handled automatically or through existing payment channels (e.g., GIRO plans) for affected individuals. ([iras.gov.sg](https://www.iras.gov.sg/news-events/newsroom/mindef-iras-clarification-on-correction-of-nsman-tax-relief-records?utm_source=openai))
## What You Should Do
If you’re a taxpayer in Singapore and:
- You claimed NSman tax relief for YA 2025 or 2026,
- You receive a NOA,
Then:
1. Check if you are part of the 15,000 notified by MINDEF/IRAS.
2. Review your revised NOA when issued to see whether your tax has increased or decreased.
3. If your tax increased and you're on a instalment plan (GIRO), expect automatic adjustment; if not, follow the instructions on your revised NOA to settle. Refunds, if applicable, will also be automatic. ([iras.gov.sg](https://www.iras.gov.sg/news-events/newsroom/mindef-iras-clarification-on-correction-of-nsman-tax-relief-records?utm_source=openai))
## Broader Takeaways & Tips
- Keep your NS activity records updated and monitor correspondence from MINDEF and IRAS if you are an NSman or eligible family member. Discrepancies in government records can lead to unexpected tax changes.
- If you’re ever unsure whether reliefs or records are correct, you can request clarifications via both MINDEF and IRAS—the joint review shows that authorities are responsive to queries.
- For accountants and tax advisors: this incident underscores the importance of verifying relief entitlements and activity records, especially for employees involved in government service or special categories.
## Final Word
Though most affected taxpayers will experience small adjustments, the mid‐assessment correction by MINDEF and IRAS is significant—it restores fairness and accuracy in the tax relief system. If you're unclear whether you're impacted, watch for your NOA and contact IRAS if you believe your NS relief is wrong. Transparency, once more, plays a key part in tax compliance.