Circular : No. 588 At present, customs duty is levied on the value of computer software by treating it as a commodity import. The non-resident licenser or seller is also subjected to income-tax on royalty payment for licensing of the software. To avoid this dual levy for exporters, Government has decided that lump sum payment for systems software supplied by the manufacturer along with the hardware itself would be subjected only to customs duty and not to income-tax. Application software forming part of an approved software export scheme would be subjected only to income-tax on the licenser or seller