When you start and finish repaying
When you start paying depends what repayment plan you’re on.
Plan 1
You’re on Plan 1 if you’re:
• an English or Welsh student who started your undergraduate course before 1 September 2012
• a Scottish or Northern Irish student
You’ll start repaying your student loan the April after you leave your course if your income is over £352 a week or £1,527 a month (before tax and other deductions).
These amounts change on 6 April every year. You stop paying if your income drops below these amounts.
Plan 2
You’re on Plan 2 if you’re an English or Welsh student who started your undergraduate course on or after 1 September 2012.
The earliest you start repaying is when your income is over £480 a week or £2,083 a month (before tax and other deductions) and it’s either the:
• first April after you leave your course
• April four years after the course started, if you’re studying part-time
Early repayments
There’s no penalty for paying some or all of your loan off early.
If you’ve nearly paid off your loan
You can avoid overpaying if you know your loan will be paid off within 2 years.
The above information was taken from https://www.gov.uk/student-finance