I prepay my taxes every year, and save something like 15% over paying it monthly. Maybe not quite as much as inflation, but close.
But you have to also factor in the expense of getting money here, if you dont live here full time.
I have to be personally present in Buenos Aires, and bring money, to pay my bills.
I dont live full time in Argentina, so it saves me money and trouble to have a bank account, and auto pay.
otherwise, I would have to figure out a way to send money to argentina, pay for that, and then pay a trustworthy person to actually pay the bills.
To me, its a no-brainer to have a bank account, auto pay, and pay any bills I can in advance, IF there is a discount to do so, such as the ABL.