Tax experts opine that Finance Minister Arun Jaitley, who had in his previous budget hiked service tax rate by 0.5 per cent to 15 per cent, may raise the tax by at least one percentage point to 16 per cent. Some others feel there could be different service tax rates with a lower 12 per cent for basic services and a higher 18 per cent for the rest.

The move, that will make flying, eating out, phone bills and a host of other services expensive, would be an attempt to take the rates closer to the proposed tax slabs for GST, which will subsume central and state levies like excise duty, service tax and VAT, is scheduled to be rolled out from July 1.

The tax slabs decided for the GST are 5, 12, 18 and 28 per cent and taking service tax closer to one of the slabs is a logical move in the Budget, tax experts said.