When you are entering Singapore, you must have a valid passport for at least six months.
You must also ensure you have enough funds for the length of your intended stay. You must complete disembarkation/Embarkation card (D/E), obtain a valid Singapore visa (if required), a confirmed onward or return ticket, evidence that you can enter your next destination, a yellow fever vaccine certificate (if applicable).
While in Singapore, you are not permitted to engage in any employment, business or professional activities.
Overstaying in Singapore is an offence and it is punishable. If you want to stay beyond the period of stay granted, you can apply an extension of stay online using ICA e-service or visit Service Centre in level 4 of the ICA building before your Visit Pass expires. The application of extension of stay is subject for ICA approval.
Please visit ICA website here for more information.