Ms Sultana also said she was “resigning” from the Labour Party after 14 years.
She was suspended as a Labour MP shortly after they came to power last summer for voting against the government maintaining the two-child benefit cap.
Several others from the left of the party, including Mr Corbyn, were also suspended for voting against the government, and also remained as independent MPs.
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However, Ms Sultana was still a member of the Labour Party – until now.
Mr Corbyn has previously said the independent MPs who were suspended from Labour would “come together” to provide an “alternative.
The other four are: Iqbal Mohamed, Shockat Adam, Ayoub Khan and Adnan Hussain.
Mr Corbyn and the other four independents have not said if they are part of the new party Ms Sultana announced.
In her announcement, Ms Sultana said she would vote to abolish the two-child benefit cap again and also voted against scrapping the winter fuel payment for most pensioners.
Ms Sultana also voted against the government’s welfare bill this week, which was heavily watered down as Sir Keir Starmer tried to prevent a major rebellion from his own MPs.
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Protesters block Israeli arms manufacturer in Bristol
On Wednesday, Ms Sultana spoke passionately against Palestine Action being proscribed as a terror organisation – but MPs eventually voted for it to be.
She said to proscribe it is “a deliberate distortion of the law to chill dissent, criminalise solidarity and suppress the truth”.
Ms Sultana said they were founding the new party because “Westminster is broken but the real crisis is deeper – just 50 families now own more wealth than half the UK population”.
She called Reform leader Nigel Farage “a billionaire-backed grifter” leading the polls “because Labour has completely failed to improve people’s lives.
Image: Ms Sultana called Nigel Farage a ‘billionaire-backed grifter’. Pic: PA
The MP, who has spoken passionately about Gaza, added: “Across the political establishment, from Farage to Starmer, they smear people of conscience trying to stop a genocide in Gaza as terrorists.
“But the truth is clear: this government is an active participant in genocide. And the British people oppose it.
“We are not going to take this anymore.”
A Labour Party spokesperson said: “In just 12 months, this Labour government has boosted wages, delivered an extra four million NHS appointments, opened 750 free breakfast clubs, secured three trade deals and four interest rate cuts lowering mortgage payments for millions.
“Only Labour can deliver the change needed to renew Britain.”
Donald Trump has reignited his row with London mayor Sir Sadiq Khan after calling him a “nasty person” who has done “a terrible job”.
During an hour-long news conference with Sir Keir Starmer in Scotland, the US president hit out at the Labour mayor, who has responded with his own snipey remarks.
Asked if he would visit London during his state visit in September, Mr Trump said: “I will, I’m not a fan of your mayor, I think he’s done a terrible job.
“A nasty person, I think.”
The prime minister then interrupted and said: “He’s a friend of mine.”
But the president added: “I think he’s done a terrible job but I will certainly visit London, I hope so.”
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Sir Sadiq’s spokesperson then released a statement saying: “Sadiq is delighted that President Trump wants to come to the greatest city in the world.
“He’d see how our diversity makes us stronger not weaker; richer, not poorer.
“Perhaps these are the reasons why a record number of Americans have applied for British citizenship under his presidency.”
Image: Sir Sadiq Khan was knighted in June. Pic: PA
They noted that Sir Sadiq has won three mayoral elections, including when Mr Trump lost the US election in 2020.
This is not the first time Mr Trump and Sir Sadiq have locked horns.
Sir Sadiq then described Mr Trump as a “poster boy for racists”.
And in November 2024, after Mr Trump won his second term, Sir Sadiq said many Londoners would be “fearful” about what it would “mean for democracy”.
However, as Sir Keir tried to show diplomacy with Mr Trump after becoming PM, Sir Sadiq said he “wanted to work closely with the American president” ahead of his inauguration in January.
The London mayor said as somebody “who believes in democracy, and voting and elections, we should recognise the fact that Donald Trump is the elected president of the United States”.
But he added: “Let’s keep our fingers crossed that this president is different from the last time he was president.”
The SEC delayed decisions on the Truth Social Bitcoin ETF and Grayscale’s Solana Trust, extending review periods as the US Congress moves with crypto regulation.
The US House of Representatives will be in recess for the month of August, but the Senate still has a week of business to address two crypto bills before breaking.