The Electoral Commision of Queensland could issue more than $900,000 in fines after research shows almost 25 percent of resident failed to vote in Brisbane City Council byelection.

On January 20 the Morningside byelection saw over 7000 people failing to cast a vote, an ECQ spokeswoman confirmed it may issue apparent failure to vote notices to electors who failed to vote at a polling booth, pre-polling centre or through the postal service.

She said fines of up to $126 may be issued to electors who do not have a valid or sufficient reason explaining their absence.