Sometimes I see on American TV that once a year (I think) they try to figure out how much tax they owe and send off a cheque. How does this really work?

Id struggle very much to calculate this. Do you keep receipts for everything?

Is there no system where taxes are automatically taken out of your monthly wages? Id be interested to hear some examples of what you pay, and how you calculate it all if possible.

In the UK pretty much every has monthly tax taken automatically, unless you are self employed.

The way it works for me for example last month I made:

£2282.58 and £435.92 was deducted. £247 in tax and 98.77 national insurance. £90.15 went to my pension.

So what would your payslip look like? No deductions? Or am I just getting the wrong idea from America TV shows?

Thanks