Offshore life assurance policy drawdown

Hi, I have an offshore life assurance policy that I contributed to whilst a non-UK resident. I have since moved back to the UK and contributions stopped. I now want to cash-in a portion of the life assurance policy. I think that I need a chargeable gains certificate? What do I need to enter on my self assessment? I understand that I can withdraw 5% of total contributions for each year from the first anniversary of the start of the policy? What is my tax liability (if any) if I take a lump sum. I am a lower rate tax payer

Hi Richard Smith,
You would need to complete SA106 at page F6, boxes 43 to 45, to declare a foreign chargeable event gain or the online equivalent boxes.
Thank you.