if i have a buy to let property?

Question

and this property rises in price and i decide to remorgage it to release some equity would i pay tax on the amount i release

Answer 1

No.

You will be liable for capital gains tax when you sell the property and this will basically be calculated on the difference between the purchase price and the selling price.

How you financed the purchase, or any other details of your borrowings, is not relevant.