Rachel Reeves is set to commit to "invest in Britain's renewal" when she unveils her fiscal agenda for the years ahead on Wednesday.
The Chancellor is anticipated to declare substantial uplifts in funding for the NHS, defence and education sectors within a spending review that promises £113 billion of investment enabled by relaxed borrowing rules.
Additionally, Reeves will detail modifications to the Treasury's "green book" criteria, which dictate the allocation of investment funding, in an attempt to escalate financial support across regions beyond London and the South East.
Positioning this injection of capital as a direct result of the "possible only because of the stability I have introduced" following the October budget, Ms Reeves is expected to argue that her spending review will "ensure that renewal is felt in people's everyday lives, their jobs, their communities".
In her address, she is anticipated to say: "The priorities in this spending review are the priorities of working people.
"To invest in our country's security, health and economy so working people all over our country are better off."
Another key projection to watch for at the spending review involves a colossal £39 billion allocation for affordable housing over a decade, as the Government aims to fulfil its target of constructing 1.5 million homes prior to the next general election.
The Treasury said this would see annual spending on affordable housing rise to £4 billion by 2029/30, almost double the average of £2.3 billion between 2021 and 2026.
A Government source said: "We're turning the tide against the unacceptable housing crisis in this country with the biggest boost to social and affordable housing investment in a generation, delivering on our plan for change commitment to get Britain building."
The Chancellor has made headlines with announcements detailing a hefty £15.6 billion assigned for public transport infrastructure across England's urban centres, coupled with a substantial £16.7 billion earmarked for nuclear energy endeavours, largely financing the new Sizewell C station in Suffolk.
However, the forthcoming spending review anticipates imposing stringent budgetary ceilings on departments other than health, defence, and education.
While it is understood that Ms Reeves has sanctioned a rise above inflation for the policing budget, it is believed to have been balanced by reductions elsewhere within the Home Office budget.
Meanwhile, confidantes of the Mayor of London, Sir Sadiq Khan are voicing worries that the capital may find itself overlooked in the spending review.
Preceding the review, the Institute for Fiscal Studies issued a warning that any growth in NHS funding surpassing 2.5% would likely signal cuts to other departments or the need for additional tax hikes to be unveiled in the forthcoming autumn budget.
The Chancellor has maintained that her economic policies will stand firm, in alignment with Labour's election pledge not to escalate income tax, national insurance, or VAT rates.
She is set to declare on Wednesday: "I have made my choices. In place of chaos, I choose stability. In place of decline, I choose investment. In place of retreat, I choose national renewal.
"These are my choices. These are this Government's choices. These are the British people's choices."
