Due to a reduction in childcare costs, we now have £300 spare per month. We'd like to put it towards repaying our (huge) mortgage. We currently have a fixed rate of 3.06% until the end of 2027.
Should we increase our monthly payments or put the £300 in a savings account to repay a lump sum when we remortgage?
Savings accounts seem to pay 4-5% at the moment so I'd assume that this is the better option, but there may be something I'm missing...