The NBS announced the rate in its latest consumer price index (CPI) report, released on Thursday.
The data bureau said the CPI, which measures the changes in prices of good and services, rose to “131.2 in December 2025, up by 0.7 points from the previous month (130.5)”.
“The December 2025 year-on-year Headline inflation rate stood at 15.15% relative to the November 2025 headline inflation rate (17.33%),” the report said.
The bureau had, on January 12, projected a temporary “artificial spike” in the country’s December 2025 inflation rate.
Adeyemi Adeniran, statistician-general of the federation, said the spike would result from the adjustment in the reference period, otherwise known as the base year.
“This artificial spike is as a result of the base effect of December 2024, which is equated to 100, following the rebasing exercise,” Adeniran said.
