You may apply in writing for holding over all or part of your provisional profits tax for a year of assessment based on one of the following grounds:

1.	Your assessable profits for that year of assessment are, or are likely to be, less than 90% of the assessable profits for the year preceding that year of assessment, or of the sum estimated by the Hong Kong Inland Revenue Department (“HKIRD”) of which you are liable to pay provisional profits tax. Supporting documents including properly signed management accounts covering a period of not less than 8 months for that year of assessment should be submitted together with the application.
2.	The amount of tax loss brought forward for set off to that year of assessment has been omitted or is incorrect.
3.	You have ceased or will cease to carry on your trade, profession, or business before the end of that year of assessment. In addition, the assessable profits for that year of assessment are, or are likely to be, less than the assessable profits for the year preceding that year of assessment, or of the sum estimated by the HKIRD of which you are liable to pay provisional profits tax.
4.	You have elected to be assessed under Personal Assessment for that year of assessment and the Personal Assessment is likely to reduce your liability to tax.
5	You have objected to your assessment for profits tax for the year preceding that year of assessment.

The Hong Kong tax law provides for a two-tier time limit. You must lodge an application not later than 28 days before the due date for payment of the provisional tax or 14 days after the date of issue of the notice for payment of provisional tax, whichever is the later.

Source：Hong Kong Inland Revenue Department’s website

- https://www.gov.hk/en/residents/taxes/taxfiling/object/provisional.htm
- https://www.ird.gov.hk/eng/faq/hpt.htm