Angela Rayner has been urged to come clean on the tax probe which freed up her path to No10.
HMRC shut its investigation yesterday after the former Deputy Prime Minister finally paid her £40,000 tax bill.
Ms Rayner was found to have owed the hefty sum last year after purchasing a £800,000 holiday home on the south coast - and then failing to pay stamp duty.
But the process to clear her name was accelerated after her lawyers intervened and asked if her case could be wrapped up "as soon as possible" following Labour's disastrous set of local election results.
Following the so-called "sweetheart deal", Ms Rayner announced her name had been cleared by the taxman, potentially freeing up the Ashton-under-Lyne MP's route to Downing Street.
Nevertheless, the issue surrounding Ms Rayner's tax affairs is yet to be forgotten as she now faces calls to publish all correspondence with HMRC "in full".
Alex Burghart, Shadow Chancellor of the Duchy of Lancaster, said: "Angela Rayner's carefully worded statement cannot disguise the fact that she has still had to cough up £40,000 in a sweetheart deal with HMRC.
"It cannot be right that one of the top contenders to be the next Prime Minister only settles her tax bill for political expediency. If Angela Rayner cannot keep her own affairs in order, how on earth can she run the country?
"If she wants the top job, she should publish all correspondence with HMRC in full."
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INSIGHT: Tom Harwood brings the latest inside scoop from Westminster
I’m hearing the NEC isn’t as sewn up for Andy Burnham as many are reporting. The vote is on a "knife edge" I'm told by sources close to the decision-making body.
"Everyone is wavering."
No10 might be briefing it is comfortable with shortlisting Mr Burnham, but that’s not to say the nine member officer committee agrees.
"I don’t think any of us are taking notice of what [No10] are saying", I'm told.
NEC officers now expected to decide on Sunday or Monday.
Beaming Starmer loyalist skips up to No10 on first day in new top job
James Murray, one of Sir Keir Starmer's most loyal allies, was spotted skipping up to No10 on his first day of his new top job.
The new Health Secretary was beaming as he greeted journalists along Downing Street.
BEV TURNER: Bridget Phillipson has the guts to face GB News... Now she must stand up to Keir Starmer
There comes a point in any career when you have to decide whether you are there to please the system or to shape it.
Within too many people who come into public life from state-school backgrounds, there is an ingrained instinct to be accommodating, helpful and agreeable.
For women, this is even worse – we have been raised to be careful, not to disrupt, and never to challenge. This means authority becomes internalised, respect becomes deference, and deference holds us back.
This is why I recognise and despair at Bridget Phillipson’s blind loyalty to Keir Starmer whilst all the blokes position themselves for attack.
RECAP: Whose path has been cleared to launch a leadership coup against the PM?
Fresh off a whirlwind day in Westminster, Sir Keir Starmer has survived another dramatic day in Downing Street.
However, the Prime Minister is far from escaping the looming threat of a leadership contest, with rivals digging their heels in on Thursday.
The day began with Angela Rayner revealing that HMRC had absolved her from issues surrounding her tax affairs after she coughed up £40,000 in tax.
Some six hours later, Wes Streeting quit as Health Secretary and delivered a scathing resignation letter to his boss in the process.
And, just a few hours later, a path for Greater Manchester Mayor Andy Burnham to return to Parliament has been cleared with Labour MP Josh Simons giving up his Makerfield seat for the 'King of the North'.
Zack Polanski admits NOT voting in local elections... despite telling candidate: 'You have my vote'
Zack Polanski did not vote in the local elections, the Green Party has admitted - despite the leader telling his own candidate she had his vote.
The Greens said Mr Polanski "fell short of time" to update his address on the electoral register.
It added that the party chief had faced "heightened intrusion and safety risk" and had been the "target of antisemitic and homophobic abuse" which resulted in him not voting in person.
A spokesman for the party said two arrests had been made in relation to "abuse directed towards him".
Pound plummets to one-month low amid panic after Andy Burnham confirms he'll stand for Parliament
The pound fell to a one-month low last night after Andy Burnham confirmed he would stand for Parliament in his bid to oust Sir Keir Starmer.
The Mayor of Greater Manchester issued a statement shortly after 5.30pm yesterday vowing to stand in the looming Makerfield by-election.
That came around 15 minutes after Josh Simons said he would clear the way for Mr Burnham to have a shot at power.
Within minutes, the pound had sunk to $1.34, its lowest level since April 13.