The Fair Funding Review 2.0, external reforms were introduced to benefit deprived areas.
In November, Local Government Minister Alison McGovern said: “Poorer local authorities that have been unable to generate as much funding through local tax will finally receive the funding they deserve.”
She said CSP – a combination of business rates, council tax revenue and government grants – would rise in annual increments for the most deprived authorities.
Slough’s CSP increase of 47% by 2028/9 is one of the highest in England, according to the finance settlement published in December.
On Facebook, the town’s Labour MP Tan Dhesi said it would ensure residents “receive the best possible local services”.
Slough’s Revenue Support Grant will be £57m by 2028/9, according to the provisional figures.
However, nearly all of Windsor and Maidenhead’s £147m CSP could come from council tax in four years’ time, the figures show.
The authority’s council tax requirement is given as £142m, while its RSG is just £2m.
The Royal Borough, which has historically had a low council tax, is one of six councils being allowed to increase the rate by more than the 5% ceiling next year.
Previously, councillor Lynne Jones, in charge of finance, said: “It’s already clear that RBWM is in a select group of councils that are worst hit by the changes to how government grant is distributed – with much of the grant funding we currently receive being redistributed to other areas.”