£907 tax bill is saying I owe 'payments on account'

sheramber

user19860331 said:

Dazed_and_C0nfused said:

It's quite common for people who had two jobs (paid) at the same time to owe tax so that coupled with the self employment is most likely why you owe more than you expected.

I didn't have 2 jobs at once, I left one at the start of December and then started the other job a few days later

Although date wise you did not have two jobs at the same time, you had two jobs/ two pays in the one month - December.

If both these payments were taxed under month 8 then you were given that month's tax free personal allowance twice for the same month.

That will cause an underpayment  when the year's pay and tax is reviewed.