Monthly interest confusion

getmore4less

havingaball74 said:

Hi all,
We are on a fixed rate of 1.69%. Balance in question was 96k.
We are currently 3 years into a 5 year fix. We took it out in May 2017.
Without over-payments, just paying the same amount each month, in October 2019 the interest paid was £139. By June 2020 the balance had reduced by £4000 purely by paying the normal fixed monthly amount of £585 (no over payments) but the interest part was still £139. I'm confused because according to my statement the balance was lower, so why still the same amount of interest?
In August 2020 (a few days ago) we paid off 10%.
If you are in a fix, you pay the same each month, but the balance decreases each month because you have a repayment mortgage. Therefore the amount of interest you pay should be lower each month (give or take the adjustment for varying days in the month). So, if I pay £585 a month and £139 of that is interest, the next month the interest should be less shouldn't it as I'm reducing the balance?  Or am I totally confused? Thanks again.

You seem to have totally ignored the post that explain what might be happening.

post the interest paid each month from Jan, that will be 6/7 values.