Premier Colin Barnett has ruled out further extending Sunday trading laws in the short term, but will consider it before the 2017 state election.
Shops are currently allowed to open from 11am to 5pm on Sundays.
While WA Commerce Minister Michael Mischin said over the weekend the possibility of incremental extensions to Sunday shopping hours was being considered, nothing had been finalised.
Minister for small business Joe Francis said he'd tear up trading hour regulations immediately if it were up to him.
"You might tell Joe it's not up to him," Mr Barnett laughed during a press conference today.
He poured cold water on hopes of shops opening at 9am (WST) on Sundays during his second term as leader.
"We battled long and hard to get Sunday trading introduced, we finally achieved that, and I made it very clear at the time that deregulation of trading hours was something that will happen step by step.
"What we will do in the meantime, however, is address some of the anomalies and there are a number of anomalies ... which create odd situations between different retailers."Yes, it may change again but not for a while. Maybe going into the next election, we'll have a look at it."