Surely that's only for employees though, not for companies? This is how it works in several countries, including the UK - your employer tells the tax service ab

Surely that's only for employees though, not for companies? This is how it works in several countries, including the UK - your employer tells the tax service about your salary and pension payments, and you only need to fill a tax return if you have "something else" to tell them about, such as another source of income.