For example , the 2015 election has the cut - off date on 1 July 2015 .
Singapore -- Compulsory for citizens above 21 years old as of the date of the last electoral roll revision .
The 2015 election has the cut - off date on 1 July 2015 .
Singapore -- Compulsory for citizens above 21 years old as of the date of the last electoral roll revision .