GST registration can be cancelled when a business discontinues, transfers ownership, changes its legal structure, or no longer crosses the GST threshold limit. Cancellation may be initiated either by the taxpayer voluntarily, by the GST officer, or due to legal requirements.
Once cancelled, the taxpayer is no longer liable to collect or pay GST, nor file returns. To cancel, an application must be filed in Form GST REG-16, providing reasons and relevant details. After review, the officer issues an order of cancellation in Form GST REG-19.