Maloney said the minority of seniors were travelling in the afternoon peak period and it was hard to know what the uptake would be.
"We can see that if you were to extend the scheme there would be a $30,000 per annum in Tauranga that you are currently getting through their fares you would no longer get.
He assumed a similar number would start travelling with free fares which meant another loss of $30,000.
Maloney recommended regional council consider extending the hours but it needed to consider the affordability through annual plan deliberations first.
Councillor Paula Thompson said she supported the notion, as it would encourage use of public transport.
"Providing more accessible services for older people is absolutely an outcome that we should be supporting," she said.