I completely disagree. Then you're just handing them a mechanism to make this as complicated as they possibly can. Taxes should be simple enough to be fully understood by the people paying them.
I'm not some algorithmic tool for the government to abuse when it's failed to balance it's budgets and I should not _need_ software to figure out something so basic as a deduction in wages.
> doing this by hand is quite painful and error-prone.
It's a shame there isn't a law forcing the government to make this possible.