HMRC Admin 10 Response

Hi Razvan
A Self-Assessment return would be required for this.
Thankyou.
Regards.

Hi Edd
You can go back into your online return and make an amendment and add  SA109.
Thankyou.
Regards.

Hi Daiput
If the money had been left in a savings account it would still be lible to tax on interest generated (above £1000). as it was your choice to invest in a pension, this is then generating a further source of taxable income which needs to be taxed irrespective of how the pension was funded.
If your total annual income is below your personal allowances for the tax year, then this will be paid tax free.
Thankyou.
Regards.