PPI Reclaiming Tax - Form R40 filling in

Richmmm

I have had a PPI refund, with £600 tax taken off, just last month.

I have form R40, which I have been advised to just fill in sections 1, 3, 11 and 12.

I thought I would try R40 on line, but it wants details of my earnings in the current tax year (section 2) and will not allow me to progress without these figures. I am a basic rate tax payer, with income from a pension and a part time job, up untill this covid thing caused me to be made redundant.

What do I put in section 2? An estimate of my earnings for this tax year? Or do I have to wait untill the end of the tax year when I will know my earnings?

Regards, Rich