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The £10,000 MPAA Mistake: How a Small Pension Withdrawal Can Derail Your Contributions

FutureClear ·

A teacher in her early 60s decided to take £5,000 from her SIPP to help with a one-off home repair. She was still working part-time. She’d been told the first 25% was tax-free, and she only took the tax-free bit. So far, no problem.

A few months later she also took £2,000 of taxable income from the drawdown pot. The £2,000 was small. Her salary was modest. The tax on it was unremarkable. What she didn’t realise was that the moment she took that £2,000 of taxable income from her pension, she triggered the Money Purchase Annual Allowance. From that tax year onwards, her annual pension contribution limit dropped from £60,000 to £10,000. Permanently.

She was contributing £15,000 a year through workplace salary sacrifice. The £5,000 above the new £10,000 limit was treated as taxable income — an unexpected tax charge of £1,000. She’d never been told MPAA existed.

This is the most common pension trap in the UK system that isn’t widely understood. It’s worth knowing how it works.

What MPAA is and why it exists

The Annual Allowance is the maximum you can contribute to pensions in a single tax year while receiving tax relief. For most people it’s £60,000 (or 100% of relevant earnings if lower). For very high earners, it can taper down to £10,000.

The Money Purchase Annual Allowance is a separate cap that kicks in only when you’ve started flexibly drawing from a money-purchase (DC) pension. Once triggered, it replaces the £60,000 figure with £10,000 for any defined-contribution contributions going forward. Defined-benefit accruals are then measured against a separate £50,000 “alternative annual allowance” (the £60,000 standard allowance less the £10,000 MPAA), but for DC the limit drops to £10,000.

The reason it exists is to prevent recycling. Without MPAA, someone in their mid-50s could draw £50,000 of taxable pension income, pay tax on it, then re-contribute the £50,000 to a pension and reclaim the tax via fresh tax relief. The numbers would loop indefinitely. MPAA closes the loop by making the act of flexibly drawing trigger a much tighter contribution cap.

What triggers MPAA

The list of trigger events is specific and worth knowing:

Triggers MPAA:

  • Taking any taxable income from flexi-access drawdown (FAD), even £1
  • Taking a UFPLS (uncrystallised funds pension lump sum)
  • Taking a flexible annuity
  • Notifying the scheme administrator that you want to convert capped drawdown to flexi-access

Does NOT trigger MPAA:

  • Taking just the 25% PCLS (tax-free cash) with no drawdown income
  • Taking a lifetime annuity (standard, not flexible)
  • Drawing from defined-benefit pension scheme as scheme income
  • Pre-2015 capped drawdown income within the cap
  • Small pots payments (under £10,000 from non-occupational schemes, up to three times)

The most common trap is the second-to-last point on the trigger list. Someone crystallises £20,000, takes £5,000 PCLS (safe), and also takes £3,000 of the taxable 75% (not safe). The £3,000 triggers MPAA even though the headline withdrawal was small.

The PCLS-only path is safe. The complication is that many schemes — especially older ones — bundle PCLS and drawdown together by default, and the user has to actively request “PCLS only, no drawdown” to avoid the trigger.

Who gets caught

The classic profiles are:

The dual-income retiree. Reduces work to part-time at 60. Takes a small amount from their SIPP to top up income. Doesn’t know that the taxable component triggers MPAA. Then receives an unexpected tax bill the next April when their workplace pension contributions exceed the new £10,000 limit.

The phased crystalliser. Plans to crystallise their SIPP in tranches over several years for tax efficiency. The first tranche takes PCLS plus some taxable drawdown. MPAA triggered. Future contribution plans now constrained.

The “I’ll just take the tax-free bit” mistake. Takes 25% PCLS only, assumes they’ve protected MPAA. But then accidentally withdraws from the 75% drawdown pot a few months later — sometimes through a misunderstanding of which pot is which. MPAA triggered.

The salary-sacrifice high earner. A high earner using bonus-sacrifice or generous salary-sacrifice arrangements to make large pension contributions. If they ever flexibly access a DC pot — perhaps an older one from a previous job — MPAA triggers and their current scheme contributions are now capped at £10,000.

What it costs in practice

The cost depends on how much the person planned to contribute. For someone contributing £15,000 a year (the teacher above), the cost is £5,000 of excess contributions taxed as income each year — roughly £1,000 a year at 20% rate, more at higher rates. Over the remaining years until retirement, this can be tens of thousands of pounds.

For someone using sacrifice on a £200,000 income and contributing £40,000 a year, the cost is much larger. The £30,000 above the £10,000 cap is taxed at the marginal rate of the contributor — usually 40% or 45% — and the employer NIC saving from salary sacrifice is also clawed back.

How the trigger mechanics work

MPAA is set only when flexible drawdown income is taken. Someone who is still making meaningful contributions and who has not taken flexible drawdown income has not set the trigger. The mechanics that determine whether it fires are:

  1. PCLS-only crystallisations. Under HMRC rules, crystallising a pot and taking only the 25% tax-free cash — with no income drawn from the taxable 75% — does not set the trigger. Because many schemes bundle PCLS and drawdown together by default, this generally has to be requested explicitly, and a written confirmation that no drawdown income will be paid leaves a clear record of what was taken.

  2. The small-pots rule. Defined-contribution pots under £10,000 (from non-occupational schemes) can be cashed in entirely under the small-pots rule without setting the trigger, up to three times.

  3. UFPLS. A UFPLS combines 25% tax-free with 75% taxable in a single payment — effectively a one-stop withdrawal — and sets the trigger the first time it is used. It is relevant once pension contributions have stopped.

  4. Lifetime annuity income. A standard (non-flexible) lifetime annuity is not a money-purchase mechanism after purchase, so the income it pays does not set the trigger.

MPAA matters specifically for people who intend to keep contributing meaningfully. For someone who has finished work and won’t be making further pension contributions, it has no effect.

How FutureClear handles it

When a user adds a pension withdrawal event to a scenario, the engine flags whether that event would trigger MPAA. If triggered, future contribution events are validated against the £10,000 limit (or £60,000 for years before the trigger). Excess contributions are tracked and the resulting tax charges modelled in the affected years.

The user can also see, before adding a withdrawal, the difference between a PCLS-only path (no MPAA trigger) and a full UFPLS or drawdown path (triggered). The two scenarios run side by side, and the difference in lifetime pension contribution capacity is visible.

This isn’t a feature most calculators have. It’s not one most users ask for — until they discover what MPAA costs.

Nothing in this post constitutes financial or tax advice. FutureClear is a modelling tool, not an adviser. The descriptions above reflect HMRC pension rules for 2026/27. Pension rules continue to evolve. If in doubt, consult a qualified financial or pensions professional.