From December 31, 2025, Singapore's Immigration & Checkpoints Authority (ICA) will enforce a "No Boarding Directive" (block on boarding and entry refusal) at the check‑in stage at departure airports, so some passengers may be prevented from boarding before they leave their origin country.

What the new system does

ICA will use passenger data in the Advance Passenger Information (API) system to flag travellers assessed as high‑risk for security, health, or immigration violations and issue one of two responses at check‑in: OK To Board or Do Not Board.

Who must submit passenger information

All airlines are required to provide passenger information to ICA's API so the system can determine whether to allow boarding or block it.

What ground staff will do if you're flagged

Airline ground staff are authorised to inspect documents and request additional checks to confirm your travel purpose and to request ICA to remove the boarding block if appropriate. Airlines may not accept a signed waiver of responsibility from the passenger in lieu of ICA approval.

Documents ground staff may request

• Passport with at least six months' validity from the date of intended entry.
• SG Arrival Card or other required Singapore arrival/declaration forms.
• Return or onward ticket (to your home country or a third country).
• Hotel booking or accommodation confirmation.
• Planned itinerary for your stay.
• Proof of funds (bank statements or cash) to demonstrate you can support the trip.
• Invitation letter for business or visiting relatives, if applicable.
• Letter of acceptance/confirmation for students travelling on a study pass.

Why ICA introduced this step

ICA reports a notable rise in entry refusals—an increase driven by concerns such as security risks, overstaying, and illegal work—so the No Boarding Directive aims to prevent high‑risk travellers from boarding and reduce repatriation and border processing burdens.

Airline liability and penalties

Airlines that knowingly board passengers flagged as "Do Not Board" without reconfirmation with ICA may face fines ranging from SGD 2,000 to SGD 10,000.

Practical tips for travellers

• Confirm your passport validity is at least six months from entry date.
• Complete any required Singapore arrival/entry forms before travel.
• Carry clear evidence of onward/return travel, accommodation, funds, and purpose of visit (invitation or admission letters if applicable).
• Arrive early for check‑in and be prepared for possible additional document checks.

P.S. This introduces one more pre‑departure check, so plan accordingly to avoid delays or being denied boarding.