Under the deal agreed by civil servants and their union, next year's pay settlement will be RPIX minus 1%.
Public sector workers agreed a three year deal which this year equated to a 7% pay rise.
But that dips to 5.8% from January 2024, which is RPIX in June 2023 minus 1%.
RPIX is the inflation rate minus mortgage payments.
Yesterday's inflation bulletin showed the other main inflation indicator, RPI, was running at 7.2%.
That's down 1% on the March figure and shows that prices within the 'basket' that determine inflation are still rising, but not as much as they were.

Guernsey gets behind community café after online appeal
Guernsey Waste warn of the fire hazard of disposable vapes
No rush to ban social media for the under-16s in Guernsey
Guernsey businesses encouraged to use the daily St Malo ferry for European imports
Guernsey's airline to drop its European holiday routes
A total ban on disposable vapes in Guernsey and Jersey is poised to take full effect
Guernsey's Air Display to remain an early evening event
Disgraced Guernsey politician and pastor jailed for 9 years