Do we really have to pay taxes in the USA?

Yes.

The law that covers the Income Tax is Title 26 (Internal Revenue Code).

The people who claim that you do not have to pay are called Tax Protesters. They have been around as long as the income tax itself but not one of them has ever convinced a court that they were correct and got out of paying their taxes.

File your returns and pay your taxes. You will be much happier in the long run. Tax protesters normally end up broke and alone. Sometimes, they end up in prison.

Go for the obvious on this one.

Sho' nuff. Guaranteed.

Yes. Although they are called "contributions" the IRS will destroy people who decide to not pay taxes. They make an example of them to create fear in others.

No. It is voluntary by tax evaders, illegal immigrants and prisioners.

Try not doing it and see how soon the IRS and others inform you that you have to do it.

You don't necessarily have to pay taxes, but if you had earnings in the US, or a US citizen living abroad, you do have to file a tax return. The end result of the return will determine if you have to pay taxes.

Yes. If you are a US citizen, legal permanent resident, do any sort of work (even remotely or telecommuting for an employer abroad) while in the US, stay in the US for 183 days or more in any year, or are another "US person" as defined in law, you must file & pay US income taxes. US taxes ALL income from all sources worldwide regardless where you reside & regardless of your citizenship if you meet any of the criteria which snares you in the US Tax Trap.

And the IRS especially targets US citizens living abroad for investigation. E.g. US-born children of foreign parents taken back to the parents' (and their!) country of citizenship to reside are subject to US income taxes & other financial reporting requirements. Failure to file & failure to pay as required are separate felonies. There are additional reporting requirements, e.g. report foreign bank & financial accounts and report foreign assets, and penalties for failing to file these ON TIME, if required, are draconian!

Yes.

yes