To these new or revived sources of ordinary income were added the sums which accrued by extraordinary means, especially in consequence of the civil war, to the victor--the booty collected in Gaul; the stock of cash in the capital; the treasures taken from the Italian and Spanish temples; the sums raised in the shape of forced loan, compulsory present, or fine, from the dependent communities and dynasts, and the pecuniary penalties imposed in a similar way by judicial sentence, or simply by sending an order to pay, on individual wealthy Romans; and above all things the proceeds from the estate of defeated opponents.

How productive these sources of income were, we may learn from the fact, that the fine of the African capitalists who sat in the opposition-senate alone amounted to 100,000,000 sesterces (1,000,000 pounds) and the price paid by the purchasers of the property of Pompeius to 70,000,000 sesterces (700,000 pounds).

This course was necessary, because the power of the beaten nobility rested in great measure on their colossal wealth and could only be effectually broken by imposing on them the defrayment of the costs of the war.

But the odium of the confiscations was in some measure mitigated by the fact that Caesar directed their proceeds solely to the benefit of the state, and, instead of overlooking after the manner of Sulla any act of fraud in his favourites, exacted the purchase-money with rigour even from his most faithful adherents, e.g.from Marcus Antonius.
The Budget of Expenditure In the expenditure a diminution was in the first place obtained by the considerable restriction of the largesses of grain.
The distribution of corn to the poor of the capital which was retained, as well as the kindred supply of oil newly introduced by Caesar for the Roman baths, were at least in great part charged once for all on the contributions in kind from Sardinia and especially from Africa, and were thereby wholly or for the most part kept separate from the exchequer.

On the other hand the regular expenditure for the military system was increased partly by the augmentation of the standing army, partly by the raising of the pay of the legionary from 480 sesterces (5 pounds) to 900 (9 pounds) annually.
Both steps were in fact indispensable.