What is Pension Emergency Tax (Month-1 Basis)?

Full Definition

When a pension provider makes the first flexible drawdown payment to a member in a tax year and does not hold a current tax code from HMRC, it is required by law to apply a Month 1 (also called Week 1) emergency tax basis. This means the provider treats the single payment as if it represents one month's income and multiplies it by 12 to project an annualised income figure, then taxes it on that projected amount. The result is a severe overpayment. For example, a GBP 20,000 lump sum taxed on a Month 1 basis is treated as GBP 240,000 annual income -- much of it falling into the 40% and 45% bands even though the actual year's income may be far lower. The overpaid tax can be reclaimed from HMRC using specific forms: P55 for a partial drawdown where the pension pot is not fully cashed (most common case for those taking an ad-hoc lump sum), P50Z for individuals who have fully encashed a pension and have stopped work, and P53Z for trivial commutation or small pot payments where the fund is fully cashed. HMRC aims to process these refund claims within 30 days. Alternatively, the overpaid tax is corrected automatically at the end of the tax year through the Self Assessment return or a PAYE reconciliation, but this can mean waiting until well after April. To avoid emergency tax on subsequent withdrawals, the member should ensure the provider holds a valid in-year P45 or that HMRC issues a correct tax code directly to the provider. Crucially, taking any flexible income (not just commuting a small pot) triggers the Money Purchase Annual Allowance (MPAA), reducing the annual pension contribution limit from GBP 60,000 to GBP 10,000.

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