Help me understand balancing payments vs payment on account.

If your tax liability (or earnings) do not change from year to year, does that in essence mean that you will not have a balancing payment on your tax calculation?

i.e. Year 1 tax liability = £6k (tax due is £9k Jan 31, £3k Jul 31) Year 2 tax liability = £8k (tax due = £6k Jan 31, £4k Jul 31) Year 3 tax liability = £6k What would be the tax due in Jan and July based on the above?

Hi Matthew Ashbolt,
As long as the correct tax code is in place then yes the correct tax would be paid so no balancing payment due. 
Thank you. 

Hi Matthew Ashbolt,
As the payments on account paid were £8K and the balance is £6K you would have a credit of £2K to go towards payments becoming due.
As no balancing payment due it would go against your payments on account which would be £3k due in Jan & Jul from your example. 
Thank you. 

Maybe the wrong place but just trying to understand a balancing payment on my 23/24 return when I had a £0 balance on my account from the previous years??

Hi,
It is not possible to check individual tax records through this forum, if you have a question which relates to your personal tax situation or tax code please contact our helpline.
Income Tax: general enquiries
The following link may also help Understand your Self Assessment tax bill Payments on account
Thank you.