Most people don't qualify for those. If you think you can (legally) pay less tax, great, go for it. I'm sure you'd still be able to file taxes the hard way if y

Most people don't qualify for those. If you think you can (legally) pay less tax, great, go for it. I'm sure you'd still be able to file taxes the hard way if you want. That's how it works in most non-US countries. The government tells you how much you owe, and you can either accept it or file paperwork demonstrating that you can pay less than that.