Which strategy? Upgrade your home or borrow to invest?

A few months ago, a reader of this blog asked me to analyse two options. Option one is to borrow more money to fund an upgrade of your family home and consequently enjoy tax-free capital gains. The second option is to invest in property. The reader wanted to know which is the best option, net of all taxes such as capital gains and land tax? Widen the scope of the questionI’d like to widen the scope of this question and add one more option – investing in shares. I have concerns with investing ...