Qantas Frequent Flyer points are set to be devalued as the airline faces pressures from the Federal Government’s carbon tax.

Around eight million frequent flyer members will be affected by price hikes, with Qantas and Jetstar customers already being hit by more price increases last week as a result of higher fuel costs and the carbon pricing scheme, the Australian.

Qantas Loyalty Head of operations Sid Gokani warned that Qantas and Jetstar customers will be affected by the carbon tax and fuel costs.

"Earlier this month Qantas announced that future ticket prices for Qantas and Jetstar passengers will be impacted by higher jet fuel costs and the Australian Government's carbon pricing system," Mr Gokani said.

"As a result there will be increases to the points required when paying for surcharges, fees and taxes on Australian and New Zealand domestic and regional Classic Award flights."

From 01 April 2012, the loyalty programs 8 million members will be charged an extra 350 points when paying for surcharges, fees and taxes on flights within Australia and New Zealand increasing to 750 on 01 July 2012.

A Qantas spokesperson said the airline is not making additional money from the points increase.

“It simply reflects the additional costs associated with the high cost of fuel and the introduction of the carbon tax."