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Where Taxpayers and Advisers Meet

Starting work half-way through the year - taxation

Joined:Thu May 27, 2021 3:32 pm
Starting work half-way through the year - taxation

Postby mnblski » Thu May 27, 2021 3:37 pm


If I start work lets say in October and my annual salary is £25000 - I will receive 6 full monthly salary payouts. Does it mean that I essentially will earn 50% of my salary this tax year and I will only pay NI and Income tax for those 6 months and this would make my monthly payout slightly higher then if I were to work full 12 months and receive 12 payouts??

Thanks in advance

Joined:Mon Feb 13, 2017 10:09 am

Re: Starting work half-way through the year - taxation

Postby someone » Fri May 28, 2021 9:36 am

Assuming no other income then yes, actually quite a bit higher. Very roughly half of your 25K salary is untaxed and half is taxed at 20% in a normal year. But if you only work the second half of the tax year then it all falls into the untaxed portion - so you get your 12.5K tax free. Normally you'd pay 20% of 12.5K (2.5k) or roughly 200 per month in tax which you won't have to pay.

So 200 p/m better off or 1.2K per year.

I understand NI is calculated weekly or monthly so no benefit there - but you should check that you qualify for a full year of NI because if you don't it will probably be cheap to top it up to a full year and, assuming you're just starting your working life, then you won't care now but in 40 years time you might regret not spending a few hundred pounds now (in the next six years) How to tell whether you'll qualify for a full year of NI is way beyond my ability but in theory your gov gateway account should tell you once the tax year is over.

I think you have to make sure you're taxed on a cumulative basis, not on a W1 basis otherwise you'll pay too much tax (although you'll be able to reclaim it at the end of the tax year). If your tax code ends W1 or M1 or X then that indicates you're being taxed on a W1 basis.

Also watch out for any benefits like health insurance that might not correctly be captured in your tax code initially. That will work the other way, you'll pay too little tax and have to pay it at the end of the tax year.

Joined:Mon Mar 11, 2019 4:22 pm

Re: Starting work half-way through the year - taxation

Postby Jholm » Fri May 28, 2021 4:30 pm

Just to add to the above, your post doesn't specify whether there is any other taxable income in the year.

If so, this will need to be taken into account, particularly where your personal allowance is concerned.

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