The person responsible for stamp duty must submit the stamp duty payment electronically via the internet network and pay the duty either before executing the instrument or within 15 days from the day following the date of the instrument, excluding public holidays. If the last day for submitting the stamp duty payment falls on a public holiday, the submission can be made on the next working day after the public holiday. (Public holidays refer to days when government offices are closed, including Saturdays, Sundays, official holidays, and special holidays announced by the government.) Users can view the list of holidays by clicking on the Holiday menu. 
