Next, Truss is asked by SNP MP Hannah Bardell if she is going to be "useless and corrupt" like her predecessor - or if she will take strong action to tackle energy price rises.

Truss insists she's "determined" to tackle such issues.

On a point of parliamentary conduct, Bardell is then asked by the speaker whether she will withdraw her use of the word "corrupt" levelled at Boris Johnson.

Bardell says "sometimes the truth hurts, but I'm happy to withdraw".

MPs questions are coming thick and fast now. Earlier, Colum Eastwood, SDLP leader, said a tailored solution for Northern Ireland is needed.

The new PM has a choice to make, he said. She can either be on the side of the DUP, or on the side of struggling people in Northern Ireland. So who's side is she on?

Truss answers by saying she wants to work with all of the parties in Northern Ireland to get the executive back up and running so we can collectively deliver for the country.

She adds that in order to do that the issues of the Northern Ireland protocol need to be fixed, and says she is determined to do that.

Rushanara Ali, Labour MP for Bethnal Green, says inflation is at a 40-year high, the NHS is on its knees, it's been a summer of transport chaos and sewerage is leaking on to beaches.

She asks Truss why the public should trust her to clean up the mess she's helped to create?

Truss says she's determined to address the issues facing the nation and turns her focus to the energy crisis again - saying immediate action will be taken to make sure people can pay their bills and access medical appointments.

Conservative Chris Loder says his constituents are baffled by renewable electricity prices rising in line with oil and gas prices. He asks the PM to confirm she is on the side of consumers?

Liz Truss says she certainly is and will deal with all the issues around regulating the energy market. She will say more about this tomorrow.

Ione Wells
Reporting from the Commons

Other MPs are getting their chance to ask questions now, and former PM Theresa May takes the opportunity to welcome Liz Truss as the third female prime minister.

May made reference in her resignation speech to how she was the second female prime minister, but would “not be the last” in a tearful goodbye.

She asks why Truss thinks all the female prime ministers have been Conservatives.

Truss responds with another joke that gets big cheers - asking why Labour can’t appoint a female leader, nor one that isn’t from north London.

In another brief exchange, Truss answers Blackford's second question with a question of her own - asking if he will "make up his mind?"

She accuses Blackford of saying he paradoxically doesn't want oil and gas extraction from the North Sea - but "on the other hand, he wants [fuel companies] to pay taxes".

SNP leader Blackford's asked Truss if oil and gas producers will "pay their fair share from excess profits".

He asks if she understands her first act as PM will define her leadership.

He refers to a "Truss tax" to be paid for by families for "years to come".

"No, it won't be paid for by a windfall tax", Truss says in reply to a question from the SNP's Westminster leader Ian Blackford on who will pay to help consumers with energy bills.

She says she wants more UK energy to be used - including oil and gas from the North Sea and nuclear power in Scotland.

Image source, House of Commons

Leader of the SNP Ian Blackford's up now.

He's just asked Liz Truss will she freeze energy prices and will they be paid for by a windfall tax?

Image source, House of Commons

Ione Wells
Reporting from the House of Commons

Keir Starmer knows that tomorrow Liz Truss is likely to be back here with a big package of support to help people with their energy bills.

It’s expected she will announce a freeze on bills. That’s why Starmer seems keen to draw a key dividing line between them - how they pay for this.

Labour wants to increase the windfall tax on oil and gas companies, Liz Truss doesn’t. It’s clear Labour will be pushing this point in the days to come - and focusing on the profits these companies are making.

Truss on the other hand will use this debate to remind people she’s a “low tax Tory”.

Liz Truss says there's nothing new about a Labour leader calling for more tax rises - it's the "same old tax and spend" message.

She says she will reduce taxes to promote growth and jobs, adding that Labour doesn't understand aspiration or opportunity.

The PM says she will help people with their energy bills, while also lowering taxes and growing the economy for a positive future.

In his final question, Keir Starmer says the PM claims to be breaking orthodoxy, but the reality is she's reheating George Osborne's failed corporation tax plans. He accuses her of protecting oil and gas profits, and forcing working people to pay the bills.

He says that though she's the fourth Tory PM in five years, "the story remains the same".

"There is nothing new about the Tory fantasy of trickle-down economics," says Starmer.

"Can't she see there's nothing new about a Tory PM who, when asked who pays, says, 'It's you, the working people of Britain'?"

Truss says she's "on the side of people who work hard and do the right thing".

She reiterates her campaign pledge to reverse a rise in national insurance.

But she also defends her plan to keep corporation tax low - despite criticism from Starmer - saying this is important to spur investment across the country, creating new jobs.

Starmer tells Truss she's choosing to hand the banks and "water companies polluting our beaches" a tax cut.

Companies that are already doing well are getting a £17bn tax cut, all while working people are paying for the cost of living crisis and stroke victims wait an hour for an ambulance, he says.

Families and public services need every penny they can get, he continues, asking why she thinks now is the right time to protect the profits of companies like Shell and give Amazon a tax break?

Liz Truss says Starmer is looking at this "in the wrong way". She claims that cutting corporation tax will boost investment in the UK, and hence tax receipts.

She again rejects the idea of windfall taxes on the big oil and gas producers, saying this would reduce tax revenues and discourage vital investment.

Starmer says Truss's first act as PM will be to borrow more than is needed because she won't touch oil and gas excess profits.

On that topic, he asks, how much would her planned corporation tax cuts hand out to companies?

"The reality is that this country will not be able to tax its way to growth," Truss says in response to Starmer's latest challenge.

She says she will keep taxes low - and insists that it's important to attract investment to the UK to grow the economy.

Image source, House of Commons

Starmer's third question to Truss is again on energy and the cost of helping people through the current crisis. He tells her "the money's got to come from somewhere".

He says she knows that every pound in excess energy profits she chooses not to tax is an extra pound on borrowing that people will have to pay for over decades.

"That's the true cost of her choice to protect oil and gas profits, isn't it?"

Responding to Starmer's question about who will pay for a freeze on energy bills, Truss says she understands people across the country are struggling with the cost of living, and that she will take "immediate action".

But she says she won't just put a sticking plaster on today's problem - she says she will increase energy supplies with more North Sea gas and more nuclear power stations.

Chris Mason
Political editor

The PM has confirmed just now of what I reported this morning — Liz Truss will deliver the government’s energy bills plan here in the Commons tomorrow