Overpaying mortgage

NH2004

I currently owe  £100,437 on my repayment mortgage with 13 yrs 5 months left to run. 

Currently on a 1.99% fixed rate until November 2026. 

After a promotion at work I’m now in a position to start overpaying the mortgage by £300 a month to pay it off sooner. 

Is that my best option, or should I put the £300 a month elsewhere?

Brie

Can you get better than 1.99% elsewhere between now and November?  If so put it elsewhere ready to pull out and throw at your mortgage at renewal time.  

Once the renewal happens (there or elsewhere) the % is likely to be higher and then I'd be doing monthly overpayments.  Check how they deal with the overpays.  Some will reduce the monthly requested amount but leave the term length the same while others leave the monthly amount the same and shorten the term.

GrumpyDil

Given you can get more that 1.99 in savings accounts I'd save the money and only pay off when your switch finishes.