The Queensland Government has reached an in-principle agreement with its staff.

The state’s 48,000 employees and their unions were made an offer that includes a $1,300 cash bonus ahead of Christmas and a 2.5 per cent pay rise over three years.

Treasurer Curtis Pitt said it was a financially responsible deal, with bonus was back pay to compensate for stalled wage negotiations under the former LNP government.

“It's a just reward for hardworking public servants who were forced to endure three years of intransigence and attacks on their pay and conditions from the LNP,” Mr Pitt said.

"It's hardly surprising [former Queensland premier] Campbell Newman and the LNP were unable to secure a replacement agreement given they were busy sacking public sector employees and cutting services.

“The LNP denied Queensland core public servants any pay rises for 16 months but the good news is that there's relief in sight prior to the Christmas break.”

He said public servants would now be paid at a level that matched their efforts.