You have to look beyond the interest rate. If you have a 2.5% rate, your mortgage will inflate away while you could be earning 8-12% returns.
If your mortgage rate is 6%, your marginal tax rate is 50% and you're earning 4-8% returns after tax, then a risk free, tax free return of 6% by paying off your mortgage is more attractive.
If your mortgage rate is 6%, your marginal tax rate is 50% and you're earning 4-8% returns after tax, then a risk free, tax free return of 6% by paying off your mortgage is more attractive.