I'm travelling Turkish airlines and availing their stopover programme. I am taking a new box-pack laptop as gift to my final destination however it just occured to me that i have to go through customs in Istanbul. I was prepared to pay the tax on my final destination however will I have to pay additional tax for my one day stay in turkey?

For information, my layover is 28 hours and i will be going out to the city. I am planning on putting the laptop in my checked baggage because its with box and i will leave my bag at the lockers in the airport. I have the receipts and its value is more than the free allowed amount. Will I have to pay additional tax on it?