Hi andyartstudio,
To qualify for the UK State Pension, you need a minimum of 10 qualifying years to receive the lower amount.
The tax year you reach state pensionable age does not qualify to the ten years.
If you have been unable to attain the 10 years due to your circumstances, please contact the International Pension Centre at the Department of work and pensions to enquire about any potential reciprocal agreements your previous UK residency involves.
International Pension Centre
Thank you.