Private pension withdrawal for pensioner with only State Pension income: tax return / emergency tax?

pathsofdarkness

My mum is 68 and has around £3,600 in a small Vanguard private pension.

Her only income is:

• The full State Pension (which counts as taxable income) [EDIT: £11,973 per year as a single woman]
• Personal Independence Payment (PIP) (which does not count as taxable income)

She has no other income or pensions, no pension credit, and has never completed a Self Assessment tax return.

If she withdraws the full £3,600 from the Vanguard pension in the current 2025/26 tax year (25% of which will be tax free):

1. Would this mean she needs to register for and submit a tax return, or will HMRC deal with any tax automatically?
2. Is it likely that emergency tax will be deducted when Vanguard pays it out?
3. If emergency tax is deducted, what is the correct way to reclaim it (and does that require Self Assessment)? Or is there a way for the tax to be dealt with automatically so she doesn't have to do anything given the small amount?

I’ve read that withdrawing a pension in one go can sometimes trigger emergency tax, but I’m unclear on whether that alone creates a tax-return obligation. I've also read that taking a small £1 withdrawal would be better because it creates a tax code and then taking the rest will be treated correctly (but given how close to the end of the tax year we are, I'm not sure if that is possible). Or would she be better waiting until the 2026/27 tax year instead? There is no urgency but would be good to get it done at some point so she can use it sooner rather than later.

Any guidance appreciated — particularly from anyone who’s been through this with a small pension pot. I feel a bit out of my depth as my mum has asked me but I really don't know.

Dazed_and_C0nfused

1. No and yes.
2. Yes. Unless she opts to take it as a "small pot" (if Vanguard offer that option)
3. There is no need for her to do anything, HMRC will automatically refund any overpaid tax after the end of the tax year.

The emergency tax code is 1257L so the first £1,048 of the taxable element will not have tax deducted. Emergency tax is a minor irritation with a smallish amount like that.

By "full State Pension" do you mean £20k+?

https://www.gov.uk/tax-overpayments-and-underpayments

Brie

In my situation the amount was larger than your mom's but here's what happened with me.

I drew down £10k. £2.5k was tax free and the balance was taxed on the emergency rate as if I was going to have £7.5k a monthly taxable income for the whole year. (so some at 20% and some at 40%). When a month rolled by and I didn't take another £10k I was given a tax refund which acknowledged that the £10k was a one off. (so the 40% changed to 20% to balance things up.). I do a self assessment for other reasons but didn't need to wait for that to trigger the refund, it was very quick.