Mortgage overpayments

How do peeps.
sorry to sound a bit wooden about this question.
I am intending on moving in with my girlfriend who has recently committed to a 7 year fixed mortgage at £90000 over 20years. £416pcm
I am going to be giving her £400 towards paying off the mortgage and being mortgage free asap.
Her bank says  limit overpayments to 10% of the balance 
So once her regular amount is paid in is it then 10% of the balance were allowed overpay or hers and my money together making it 10%.
Again apologies 


  • Good Afternoon,
    If the mortgage is 90,000 then 10% is 9,000 you can make overpayments of 9K, extra. Excluding the monthly payments.
  • Go here
    for an overpayment calculator.

  • getmore4less
    getmore4less Posts: 46,882
    Name Dropper First Anniversary First Post I've helped Parliament
    edited 26 February 2021 at 4:31PM
    Which lender?

    Some have rules that allow well over the 10% a year even if they say 10%.

    You are ok for a bit with £400pm but will hit the 10% before the 7 years are up

    Just checked and looks like ~1.35% with £816m payment you hit the 10%  limit Y5

  • Thanks all. Will maximize as much as possible to be mortgage free as early as possible 😁
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