In the UK full time minimum wage work pays £21.700, with £12,570 treshold before income tax, giving an income tax bill if £1,826. On top of that £21 / week for national insurance (pensions). That gives you an idea how solid pensions are if a minimum wage employee pays about £84 / month and will end up getting about £700 / month, inflation adjusted. A total of £1,092 / year. Property tax of about £700 / year.
That's £3,618 / year, so far. Add £100 for energy. Another £1,000 on car related tax. An extra £100 on food. £4,818, so far.
£500 per month on rent or mortgage, take away the above tax and that from the salary = about £9,000 to be taxed at 20% VAT = £1,800.
The average direct tax for a UK minimum wage worker is around £6,618, or 30.5% of their income.