By the close of business on Friday, the Australian Electoral Commission said 660,000 people had early voted, previously known as pre-polling.

In comparison, at the end of the first week for 2016 - which was a day shorter as voting started on the Tuesday - there had been 315,000 votes.

Early voting will run for three weeks until the election on May 18.

There are five candidates running in the Parkes electorate. They are: Liberal Democrats' Daniel Jones, The Nationals' Mark Coulton, Labor's Jack Ayoub, Independent Will Landers and United Australia Party's Petrus Van Der Steen.

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There are 109,639 registered voters in the electorate.

There are seven early voting centres open across Parkes, including in Moree.

The Moree early voting centre is the Moree Masonic Centre at 21 Chester Street. It's open on Wednesday, May 15 from 8.30am to 6pm, Thursday, May 16 from 8.30am to 5.30pm and Friday, May 17 from 8.30am to 6pm. There is assisted wheelchair access

To early vote you must be outside the electorate where you're enrolled to vote on election day. Reasons accepted by the Australian Electoral Commission include: travelling, being unable to leave your workplace to vote, be due to give birth shortly or have religious beliefs that prevent you from attending a polling place.

Applications for postal votes close on May 15 at 6pm.

Ballot papers have to be completed and witnessed on or before election day on May 18 and posted back to the Australian Electoral Commission.

Postal voting is available for anyone unable to get to a polling centre on election day.

Telephone voting is available at the federal election for anyone who is blind or has low vision.

There are two steps to telephone voting: registering and casting a vote.

Registering for telephone voting is available by calling 1800 913 993.

Three polling places will be open in Moree on election day this Saturday, May 18.

They are Moree Memorial Hall at 36 Balo Street, Moree Secondary College Multi-purpose Hall in Frome Street and Moree PCYC at 342 Boston Street.

Voting will also be available across the district at Ashley Community Hall, Bellata War Memorial Hall, Boggabilla Central School, Boomi Public School, Croppa Creek Public School, Garah Public School, Gravesend Hall, Mungindi Memorial Hall, North Star Hall, and Pallamallawa Public School.

All polling places are open from 8am to 6pm.