Actually I'm right and you are wrong. Prepare to have your mind blown about how screwed up the UK benefit system is.
Family #1: 3 kids, and a single earner who works for minimum wage (£10,000 a year)
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After Tax+NI they get £9,754.72 net (check here: listentotaxman.com)
Now lets compute the benefits. There is a government calculator here:
http://www.entitledto.co.uk/ . Going through that and assuming they are renting a place in London gives the following (all tax-free):
Working Tax Credit £3,269.90
Child Tax Credit: £8,803.80
Council Tax Support £860.00
Housing Benefit £12,250.69
Child Benefit £2,475.20
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Total Entitlements £27,659.59
So their net income (salary+benefits) is £37,414
Family #2: 3 kids, and a single earner who earns £40,000 a yaer
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They get £30,154 net after income tax + NI (check here:
http://www.listentotaxman.com)
They dont get tax credits but they do get housing benefit and child benefit
Housing Benefit £6,874.69
Child Benefit £2,475.20
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Total Entitlements £9,349.89
So their net income (salary+benefits) is £39,503
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In other words, if you earn £40k a year then you have £2,089 extra in your pocket at the end of the year compared to someone who works a minimum wage £10k/year job.
And yet people are claiming that £40k is 'rich'? You are barely out-earning a McDonalds worker.