Zimbabwe's Public Service Association, which represents government employees, said civil servants will go out on strike May 22 if the government fails to review their salaries.
The PSA said the government has neglected civil servants while giving special treatment to teachers by letting them send their children to public schools at no charge. The association wants all state employees to enjoy the same exemption from school fees.
PSA Deputy Secretary General Jeremiah Bvirindi said state workers want allowances raised to at least US$454 a month from US$100 at present.
"Despite the fact that commodities are now available on the market, the US$100 allowance that civil servants are getting is falling far short of paying for basic commodities and other related inescapables such as rent and electricity," he told VOA.
But Bvirindi told reporter Ntungamili Nkomo of VOA's Studio 7 for Zimbabwe that the figure is open to negotiation considering the economic challenges facing the country.