Hi Francis! Yes. Usually, you have to get your vehicle inspected before you can renew your road tax. A message to inform you of the inspection requirement will also be printed on the road tax payment notice sent to you about 1 month before the road tax expiry date.

Here's a good read to find out how you can renew your road tax easily: https://www.motorist.sg/article/69/road-tax-singapore-how-to-renew

If you have some doubts about vehicle inspection, perhaps this article can help to clear them: https://www.motorist.sg/article/499/everything-you-need-to-know-about-vehicle-inspection-in-singapore