In effect then, the government (taxpayer) has already paid for the students education. I.e. the money is already gone. Just like when it was 'free'
Not quite, but almost. In the past, the cost of a university education would have come out of the education budget, but when Gordon Brown said that at least 50% of students should be able to go to university, the education budget wasn't sufficient to handle the extra teachers required plus all the extra costs involved, so Labour then started charging £3k per student, and the coalition government then put it up to £9k to help cover the increased costs. If students had to go to a bank to get a loan, then the loan would get repaid in full, but the government coalition said that in return for the higher costs, we'll write your loan off after 30 years, and most students earning under £42,000, don't pay off the loan completely, so it's the government, and therefore the taxpayer that has to fund the shortall.
Education is free in Scotland, but they restrict the numbers that can go to university, so keep the education bill down.
Maybe I should have said that they are paying for it in two ways rather than paying for it twice, as the income tax they pay, will pay for the shortfall in the loan repayments. I suspect a lot of kids went to university based on the argument that they'd never have pay off their loans, but I don't think many realised that they'd carry on paying towards the shortfall till the day they retire.
Once you earn over £21,000, you have to pay 9% on anything abover that figure, so at £22,000, you pay 9% of a £1,000, or £90, but the interest rises far quicker than you pay the loan off, and that seems to happen for about the first 5 to 10 years or so until you're earning enough to start paying off the interest.
No tax releif whatsoever.