Offshore gain from chargeable event

For the tax year 23/24: I'm a pensioner and my state pension will total £4950. I will have interest on savings of £2300. I'm going to encash part of an offshore savings bond which will cause a chargeable event of £11,300 Total income will be £18,550. Will this be covered by the savings allowance (£5000) and the personal savings allowance (£1000) as well as the personal allowance (£12,570) so there will be no tax to pay? But, I'm not sure if the chargeable gain can be put against the two savings allowances. I can reduce the chargeable event to under £7620) so it is covered by the personal allowance less the pension income (£12570 - £4950 = £7620). Am I right in thinking that a chargeable gain of £11300 will still leave me no tax to pay? If not, will a chargeable gain of under £7620 leave me with no tax to pay? Guidance appreciated.

Hi

Yes the gain would be covered by the starter rate and excess allowances. no tax wold be due on those figures.

Thank you