If you need to check it, then maybe they are not calculating your taxes for you, so much they are taking their best guess and asking you to sign off on it. If their best guess is as good (or better) than yours, there is no difference in practice. But there is still a difference in principle: whether a citizen is permitted to declare their own income or whether the government is obliged to determine it for them.
Not exactly a guess, more like "this is what we know about your income. Would you like to add anything?"
But how do they know what they know about your income? Didn't you (or your employer on your behalf) already volunteer this information to the government in the first place? Or is your government monitoring your private financial transactions without your express consent?
Yes my employer is required to provide this information to the government.
If you need to check it, then maybe they are not calculating your taxes for you, so much they are taking their best guess and asking you to sign off on it. If their best guess is as good (or better) than yours, there is no difference in practice. But there is still a difference in principle: whether a citizen is permitted to declare their own income or whether the government is obliged to determine it for them.
Not exactly a guess, more like "this is what we know about your income. Would you like to add anything?"
But how do they know what they know about your income? Didn't you (or your employer on your behalf) already volunteer this information to the government in the first place? Or is your government monitoring your private financial transactions without your express consent?
Yes my employer is required to provide this information to the government.