More than 1000 Katherine electors have already voted, many more by the end of the week.
Polling booths on election day, Saturday, open from 8am-6pm.
Booths will be located at Clyde Fenton School, MacFarlane Pre School and Tindal Community Centre.
The early polling centre in Second Street opens each day from 8.30am to either 5.30 or 6pm and closes Friday.
The Australian Electoral Commission has also reminded all people casting a postal vote this federal election to take action quickly.
The Electoral Commissioner, Tom Rogers, said anyone who already has their postal voting pack should complete their ballot papers and return them as soon as possible.
"As of COB Friday, we'd received more than 1.3 million postal vote applications, processed them and dispatched ballot papers to voters," Mr Rogers said.
"While you have until election day to complete your ballot papers, don't wait until the last minute - complete your postal vote and send it back to us as soon as possible."
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