The Pacific Financial Inclusion Programme's Abigail Chang says tax departments in the region still use manual processes to receive paper tax returns.
Ms Chang said the new digital system would provide more payment options and reduce cash handling.
n Solomon Islands it is estimated the system could be used by more than 123,000 employees, 200 corporate taxpayers and about 3,600 small businesses.
The programme has provided a grant of more than $US450,000 for the system to be installed in the Solomons.
