The Pheu Thai Party has pledged to raise the minimum monthly wage for salaried employees to 25,000 baht by 2027 as part of efforts to woo voters ahead of the general election.

The party's Paopoom Rojanasakul said the Pheu Thai-led government under former prime minister Yingluck Shinawatra, raised the salary to 15,000 baht 11 years ago, but it has not changed since then while the cost of living has risen by over 17%.

"This goes to show salaried employees have contributed to economic growth, but they do not receive the wages they deserve. Their salaries are not compatible with the high cost of living," he said.

"One-third of the country's working population is also deep in debt and finding it hard to make ends meet," Mr Paopoom said.

"The party has a policy to raise pay to 25,000 baht for salaried employees both in the state and private sectors, as well as university graduates who are entering the labour market," Mr Paopoom said.

He said the state officials' wages would gradually increase to 25,000 baht by 2027.

First announced in December, Pheu Thai's pledge to lift the daily minimum wage to 600 baht and the monthly salary for those with a bachelor's degree to 25,000 baht drew criticism from Prime Minister Prayut Chan-o-cha.

He said it was easier said than done.