How much can I put in a private pension if unemployed

I have been unemployed for a few years, I am a registered freelancer (so I do self assessment) but have had less than 9k in income the past few years. I recently got left 10k and want to put it it in a private pension? I read somewhere there was a maximum I could put in and that I would have to pay something?

Hi Hayley,
Please refer to guidance at: Tax on your private pension contributions.
Thank you.

The link you posted does not work! Please reply to my question!

Hi Hayley,
I have checked the previous link and it is now working, apologies for any inconvenience.
Please also try: CG64485 - Private residence relief: only or main residence: two or more residences: right of nomination
Thank you.