However, that does not mean Parliament has to scrap the ban.
The Government is considering the judgment, but has indicated the Bill of Rights has been taken into consideration when refusing votes to inmates.
Taylor's lawyer, Richard Francois, said at the time he intended to take the case to the United Nations and "point out this is a human rights violation".
Many nations, including Ireland, Spain and Switzerland, allow inmates full voting rights. Others, such as France and Germany, determine voting rights on the nature of an inmates' conviction.
In New Zealand, only prisoners serving terms of more than three years were prohibited from voting until 2010 when the law changed to cover all prisoners after a member's bill by National's Paul Quinn, who is no longer in Parliament.
Justice Paul Heath said his decision related only to the blanket ban and not the earlier ban.
"There are powerful arguments that the limitations on the prohibition contained in the original [Act] are justifiable in a free and democratic society."