(New throughout, adds details, background and comment from head of tax agency)
BUENOS AIRES, Jan 4 (Reuters) - Argentina's tax revenues jumped 31.6 percent in 2015 from the previous year, the government said on Monday, a rise that can largely be explained by soaring consumer prices.
Tax income for the year climbed to 1.537 trillion pesos ($117.4 billion). Tax receipts for December increased 33.6 percent to 145.0 billion pesos.
Alberto Abad, head of the AFIP tax agency, described December's tax receipts as "reasonable" but said the full impact of the new center-right government's lifting of export taxes on wheat and corn, and a reduction of the levy on soy shipments, remained to be seen.
Private economists say that because a large proportion of Argentine tax receipts are linked to consumption, they are therefore indirectly linked to inflation.
In fact, the leap in tax revenues appeared to be only slightly higher than 2015 inflation, which Finance Minister Alfonso Prat-Gay's estimated at close to 30 percent.
$1=13.1 pesos Reporting by Buenos Aires newsroom; Writing by Richard Lough; Editing by Peter Cooney