National Insurance and Tax After State Pension Age
You do not pay National Insurance after you reach State Pension age - unless you are self-employed and paying Class 4 contributions.
You only pay Income Tax if your taxable income - including your private pension and State Pension - is more than your tax-free allowances (the amount of income you’re allowed before you pay tax).
You must contact HM Revenue and Customs (HMRC) if you think you should be paying tax.
For further information: