Reporting a Capital Gain on profits from a With Profits Bond

Having recently fully surrendered a With Profits Bond with a total gain of £48,746 over 23 years & not earning enough in this tax year to pay income tax, I feel that (after top-slicing) no further tax will be due as 20% tax is assumed paid within the bond and when adding the top-sliced gain to my income I will still be a basic-rate tax-payer. I am confused about if I have to report anything to HMRC under these circumstances, especially if I have to send in a chargeable event certificate, all within 60 days of the gain. The 60 days is especially confusing as the provider of the bond sends out their chargeable event certificates within 90 days of the surrender. Some clarity would be most appreciated.

Hi Darren,
As the gain is over 10k, you need to report this in your 2024/25 tax return.
Thank you.