Tax class / assessment type / impacts / household income

Well, that's not quite true. We have 3 and 5 and thereby save about 3000 euros in taxes [...]

The sentence is still wrong, because it gives the impression that the tax saving depends on the choice of tax class!

At least it is misleading. They save taxes by being in 3 and 5 instead of 1 and 1. They would save the same amount of taxes if they were in 4 and 4. But she also did not claim anything else. The people who so easily disparagingly claim that one has not understood the tax system either have not understood it themselves, or have read the post but did not understand it. It was about the advantage married/not married and not about the choice 3/5 or 4/4.

The tax class, as many here have also stated, has no influence on the income tax amount to be paid at the end of the year. Whether it is 3/5 or 4/4 or 5/3 is completely irrelevant.

Answer:

Well, that's not quite true. We have 3 and 5 and save about 3000 euros in taxes per year because of it

For me, this is not ambiguous in this context, but simply wrong. Or is that female logic?

They save taxes because they are in 3 and 5 instead of 1 and 1.

Also wrong, they save through income splitting for spouses. It is pointless to try to explain splitting with tax classes.

Exactly, splitting only makes sense if the other spouse earns significantly less / more.

Exactly, spouse splitting. Spouses have 3/5, or 4/4. Unmarried couples have 1/1. You can't choose anything there. Male logic...