Want to ask: I have a full flexi loan with HSBC Homesmart of 670k, after 3 plus years noted that the principle has only been reduced 30k (Now the outstanding principle is at 640k), but I've paid nearly 80k worth of interest.

If I have extra let's say 50k, would it be wise for me to reduce the principle by 50k PERMANENTLY? By doing that it will also reduce the interest but hopefully increase the portion paid for principle?

Just want to know if I have the wrong idea here.

Thanks.

Thanks for the advice:)