Greece's new parliament was sworn in Wednesday after July 7 elections, led by a conservative government that has vowed to cut taxes, boost domestic security and tighten borders against migration.

Greek lawmakers attend a swearing in ceremony at the Greek parliament on July 17, 2019 in Athens. (Photo: VCG)

The six-party parliament will officially begin its functions after electing a speaker on Thursday.

New Prime Minister Kyriakos Mitsotakis will outline his government's policies at the weekend before a vote of confidence late on Sunday.

His conservative government, which has a comfortable majority of 158 lawmakers in the 300-seat parliament, has made boosting sluggish growth a priority, powered by tax cuts and accompanied by privatisation deals.

The 51-year-old Harvard graduate and former McKinsey consultant has also pledged to create jobs and get rid of obstacles to business.

On Tuesday, Athens placed seven-year bonds at a record-low yield in its first foray into the debt markets since the election, a measure of investors' confidence in the new government's direction.

Starting in 2020, Mitsotakis has promised to cut a hated property tax called ENFIA -- brought in by a previous New Democracy-led government during the economic crisis -- by 30 percent over two years.

He has also offered to reduce income tax thresholds and to gradually cut tax on business profits by eight percent.

But just hours after his July 7 victory, eurozone finance ministers warned the new government to stick to the country's strict public spending commitments.

"We must keep our commitments, this is the only way I know to gain credibility," said Eurogroup chief Mario Centeno.

On Tuesday, the eurozone's bailout fund director and a key EU official overseeing Greece's debt repayments, Klaus Regling, suggested that tax cuts be coupled "with a broader tax base."

In a meeting with Regling later on Tuesday, Mitsotakis "confirmed that Greece would respect fiscal targets," the prime minister's office said.

During the election campaign, Mitsotakis said he would persuade Greece's creditors to accept the easing of targets with "a comprehensive reforms package".

The current framework negotiated with creditors by the previous leftist Syriza government holds Greece to a primary budget surplus of 3.5 percent to 2022 -- but the conservatives say that target stifles growth.