What were the two reasons basically for the kings to collect taxes - Social Science - Kingdoms Kings and an Early Republic

Question

What were the two reasons basically for the kings to collect
taxes?

Antara Singh · Accepted Answer

The kings collected taxes for

Building massive forts
Maintaining big armies

Huge amount of money was required for both these
two endeavors and so the kings could not depend upon occasional
gifts alone for them

What were the two reasons basically for the kings to collect taxes?