Tax Calculations

LauraThat

Although i don't send a tax return or fill one out. The only things i have kept are my P 60 end of year certificate up to the tax year 2017 from my old employer. 
So technically i wouldn't have kept things from 2017 as from last month that was the recommended 22 months. Also because i'm not self employed im taxed from source, i wouldn't of thought i needed to keep it for longer. 

Anyway, so does this seem like something i could challenge or just accept it that as a general mistake from 2017 which is now costing me £400 this year? Although in 2017 what was i supposed to have done? I challenged my old employer why they were still paying me and re requested they sent me my P 45 and when i got my annual tax thing i just assumed it was all right as i had not heard any different. 

nicechap

As has been explained to you earlier in the thread:

In order to challenge it, you need to know how much each employer paid you and how much they each taxed you in the relevant year.  You then apply your tax allowance against the entire pay (employer 1 & 2) for the relevant year and see how much tax you should have paid.  The difference between that number and what you actually paid is then what you owe, or what HMRC owe you.  Without those numbers, everything is a guess. If you do not challenge it, HMRC will decrease your allowance so its taken off the rest of this or next years pay.

You can blame your employers all you like, but like with your garage rent dilemma, you are responsible for looking after your pay & tax, no one on the internet is.

chrisbur

LauraThat said:

 The only things i have kept are my P 60 end of year certificate up to the tax year 2017 from my old employer. 

Do you mean the P60 for tax year ending 5 April 2017.  If so do you have the P60 for tax year ending 5 April 2018?
If so what are the figures from that?

Dazed_and_C0nfused

It is quite normal to owe tax for a tax year where you change jobs.

You may not consider yourself to have had two jobs but as previously mentioned you may well have paid by two employers in the same tax month in which case you would have likely received two lots of Personal Allowance and owe the additional tax.

It is unlikely the calculation is wrong but if you don't have any figures then you cannot prove it one way or the other.

The Self Assesment reference is probably just a warning that if you don't voluntarily pay the amount due HMRC will require you to complete a tax return instead.  If you pay the tax due or can have it included in the next year's tax code (which isn't always possible) then that wouldn't be necessary.

jobbingmusician

If you ring and ask them nicely, they may adjust your tax code for the year 2020-21 so that you repay the money that way.  An extra £40 a month for a year feels more affordable to me, personally.....