Moving home tax in uk

4 Years ago, I bought Maisonette for 78k, I then fixed it up, and stayed there for 3.5 years now, I bought it at 90% LTV. Today I got an offer for 111k and I am planning to buy bigger house for 130k. I still have ~30k oustanding on my mortgage. When buying new house I am planning to take mortgage at 90% LTV again and keep 111k-30k-13k = ~68k and use the money on possibly buying some land abroad or getting second mortgage on a house and rent it out. Do I have to pay tax on 68k or do I pocket if free since I am moving house?
Asked Jul 18, 2015

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