Hi . In my opinion I would suggest you to know the basic proformas of income tax computation (question 1), corporation tax computation(question 2) ,chargeable gains and capital gains tax(question 3) very well. Practice as many questions as possible from the exam kit thereafter (you must get the updated f6 exam kit version as there have been many changes of tax rates compared to the previous one). When you will be practicing you must pay a great attention to the details. Do not neglect the VAT aspect as there's at least a 10 mark on it.