REPUBLIKA.CO.ID, JAKARTA -- President Joko "Jokowi" Widodo is optimistic that the tax revenue target of Rp1,244.7 trillion for 2015 can be achieved with the support of a better taxation system.

"We are optimistic that our target is achievable," Jokowi said here on Thursday.

He cited the example of the e-filing system, stating that it could improve tax collection.

The president added that it was normal for tax revenue to be low early in the year, but by the end of the year, it would increase significantly.