Foreign pension minimum taxable amount in the UK

Hello, I live in the UK and I am a tax resident. I receive a pension from abroad, from my home country. This pension is £500 per month. My question is: Is this income taxable? How much do I have to pay for it, or am I exempt because it is a very small amount? If my income does not exceed £12,000 per year, do I have to declare this pension and pay tax on it?

Hi,
You can see guidance here:
Tax on foreign income
Thank you.