Ezra 4:13

4:13 Let the king also be aware that if this city is built and its walls are completed, no more tax, custom, or toll will be paid, and the royal treasury will suffer loss.

Ezra 6:8

6:8 “I also hereby issue orders as to what you are to do with those elders of the Jews in order to rebuild this temple of God. From the royal treasury, from the taxes of Trans-Euphrates the complete costs are to be given to these men, so that there may be no interruption of the work.