A trade union led by a former minister with links to the IRD is reportedly behind this.
Installation of the RAMIS system will cost Rs. nine billion, and already Rs. five billion had been spent on the technical equipment and to train personnel, for some training given overseas.
Experts say this system helps minimize tax defaulting and tax fraud.
Both president Maithripala Sirisena and prime minister Ranil Wickremesinghe are backing the finance minister to introduce the system.
The minister will focus, through the budget, to encourage modern technological projects to eliminate corruption and wastage.