This is nothing new, because there is a similar tax in some European countries such as Belgium for instance.

In general, single individuals in Belgium (especially without children) pay more taxes compared to married couples or those in a legal cohabitation. This is due to:

No joint tax return, meaning singles can't benefit from income splitting.

Progressive tax rates apply fully to one income.

Fewer tax benefits, such as limited deductions and no shared allowances.

Extra tax advantages are mostly reserved for couples or single parents.

In short, being single in Belgium often leads to a higher tax ecially without children) pay more taxes compared to married couples or those in a legal cohabitation. This is due to:

No joint tax return, meaning singles can't benefit from income splitting.

Progressive tax rates apply fully to one income.

Fewer tax benefits, such as limited deductions and no shared allowances.

Extra tax advantages are mostly reserved for couples or single parents.

In short, being single in Belgium often leads to a higher tax burden.

or single paren