You can usually claim tax relief for your private pension contributions. There is an annual allowance for tax relief on pensions of £60,000 for the current 2023-24 tax year. The annual allowance was £40,000 in 2022-23.
There is a three year carry forward rule that allows you to carry forward any unused amount of your annual allowance from the last three tax years if you have made pension savings in those years. There also used to also be a lifetime limit for tax relief on pension contributions but this was removed with effect from 6 April 2023.