The National Transport Authority (NTA) has announced changes to public transport fares from next year.

However, operators can implement them from December 1st.

Dublin Bus fares for Schoolchild Leap customers will increase by 2 cent, while pre-paid Rambler tickets will increase from between 2.7% to 2.9%.

Multi-operator monthlies and annuals will cost 1.9% and 2.3% more respectively.

But adult cash and Leap, regular child, schoolchild cash and Dublin Bus only monthlies and annuals will see no change.

For those using the Luas, 2017 will see the merging of adult and student zone 3 and zone 4 fares. This will see zone 3 fares increasing by up to 7.4% with zone 4 fares dropping by up to 4.2%.

There will also be a 10 to 20 cent increase on adult single cash fares, and a child return is to go up 10 cent.

The monthly and annual fares have been increased for the first time since January 2013. But the NTA says there will be no change to child single cash or Leap fares.

For Iarnrod Éireann customers, there will be no change to Intercity single and return fares - but Intercity adult and child weekly will go up by 2%.

Sallins/Naas and Kilcock stations are to relocate from the Intercity Zone into the Dublin Short Hop Zone, which the NTA says will see savings for commuters of almost 50%.

Short Hop Zone DART and Commuter Fares for the DART are also to increase 10 cent.

Cork commuter fares are also to increase by between 1.5% to 2% - except for top zone which is held at current fares.

With Bus Éireann, all single stage carriage fares are kept at current rates - as are all child and student stage carriage fares.

A number of fares have also been adjusted both up and down by 5% or less.

Anne Graham, CEO of the National Transport Authority, said three-quarters will see no change in their fares or even a reduction.

"It's only a small proportion of our public transport customers will actually see a fare increase - and they'd be fairly moderate increases," she added.