Hundreds of commuters across Gedling borough could be facing a 3.5% rise in rail fares from January.
People using the trains from, Carlton, Burton Joyce and Netherfield stations will learn the full amount of the increase on Wednesday when official inflation figures for July are published.
Economists have predicted that the Retail Prices Index measure of inflation – the number used by the Department for Transport to set rail fare increases – will increase by 3.5%.
This year rail fares rose by 3.6% – which was the biggest jump for five years.
The Department for Transport said taxpayers currently subside the network by more than £4bn a year.
A spokesman said: “Any fare increase is unwelcome, but it is not fair to ask people who do not use trains to pay more for those who do.”
The fare rises will affect “anytime” and some off-peak fares, as well as season tickets in England and Wales.