Anthony Albanese has opened the door to making much-needed changes to Australia's tax system, while at the same time tempering expectations for an overhaul anytime too soon.

The prime minister was questioned by reporters about his appetite for reform following the government's three-day productivity roundtable last week.

And while he insisted his focus was on the policies Labor took to the last federal election – pointing to the so-called "top-up" tax cut from this year's budget – he hinted further change could be on the table.

"We have an agenda for tax that is decreasing tax next year and the year after," Albanese said.

"That is our focus, the policies that we are implementing now.

"But of course, governments must always look to what they'll do in the future.

"The job of refo

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