Lump sum allowance and TTFACs: checking the tax-free cash position before retirement

Why a tax-free cash review needs the old pension records

A client may describe a forthcoming withdrawal as their first tax-free cash payment, even though an earlier pension has already used lifetime allowance. That distinction matters when calculating their available LSA.

The former lifetime allowance (LTA) measured benefits differently from the current allowance for tax-free lump sums. A defined benefit pension could use substantial LTA even where the member chose pension income with little or no cash. A present-day fund statement cannot establish what happened at those earlier retirement events.

This guide considers living members with benefits taken before 6 April 2024. Its calculations assume no pension protections, no pension in payment before 6 April 2006 and no age-75 adjustment. Those cases require separate analysis.

Start with the standard calculation

Without a valid TTFAC, the transitional deduction normally equals 25% of the individual’s LTA previously-used amount. For an unprotected member in a straightforward case, the recorded percentage used at 5 April 2024 can be applied to £1,073,100.

For example, 60% usage produces:

• LTA previously-used amount: 60% × £1,073,100 = £643,860.
• Transitional LSA deduction: 25% × £643,860 = £160,965.
• Remaining LSA before later relevant lump sums: £268,275 − £160,965 = £107,310.

Subsequent amounts that count against LSA must also be deducted. A member who exhausted their old LTA normally has no LSA under the standard transitional calculation, but may still qualify to apply for a certificate. HMRC: transitional LSA calculations.

The working paper should therefore show the historical calculation and subsequent usage separately. Combining them into a single unexplained balance makes later reconciliation unnecessarily difficult.

In most cases, the standard calculation gives a reasonable result, because it assumes 25% of the benefits taken were tax-free. Where a client actually took less tax-free cash, it may overstate the reduction in their remaining LSA and LSDBA. A TTFAC can be used to apply the correct reduction, based on the tax-free amounts actually received.

What certification changes

A TTFAC establishes the relevant historical tax-free amounts for the transitional calculation. It does not reset the allowance. It replaces the default deduction with the certified amount applicable to each allowance.

This can merit investigation where a client took little cash from a defined benefit scheme, preserved a valuable guaranteed annuity rate by taking less cash, or crystallised benefits when the standard LTA was below £1,073,100. These are screening indicators, not conclusions.

Review every earlier scheme together. A favourable result from one pension may be offset by larger cash payments elsewhere. Historical cash is considered in monetary terms for certification; it is not simply re-expressed as today’s equivalent LTA percentage.

Once issued, a certificate cannot be discarded by the member because the standard calculation would have produced a better result. Run the comparison before submitting the application.

Worked example: a higher allowance with a practical limit

This is an original illustration, not an actual client case.

Assume Helen’s earlier pensions used 60% of the standard LTA. Her complete records establish £40,000 of relevant historical tax-free cash. She has had no relevant lump sum entitlement since 5 April 2024 and now holds £600,000 in an uncrystallised personal pension. Assume sufficient LSDBA and ordinary pension commencement lump sum rules.

Calculation	Standard method	Valid TTFAC
Transitional deduction	£160,965	£40,000
Available LSA	£107,310	£228,275
25% of £600,000	£150,000	£150,000
Maximum cash on crystallising the whole fund	£107,310	£150,000

Certification increases Helen’s available LSA by £120,965, but the potential additional cash from this fund is £42,690. The fund-based limit prevents her withdrawing the full £228,275 as tax-free cash.

If her uncrystallised fund were only £200,000, its ordinary £50,000 cash limit would fit within either LSA result. That would change the immediate benefit of applying, although the wider allowance position would still warrant consideration.

Check the pension payment as well as the allowance

For an ordinary pension commencement lump sum, HMRC’s permitted maximum is the lowest of the applicable amount, available LSA and available lump sum and death benefit allowance (LSDBA). Broadly, the applicable amount is 25% of the relevant benefits coming into payment. Protected lump sum rights and disqualifying pension credits can change the calculation. HMRC: PCLS limits.

Tax-free cash also needs the appropriate associated pension entitlement. With drawdown, that entitlement arises when uncrystallised funds are designated, even if the client takes no income immediately. Buying an annuity with an existing drawdown fund does not create a fresh PCLS entitlement. HMRC: PCLS entitlement.

Ask the provider to confirm the proposed benefit route and cash amount. An allowance calculation alone is insufficient evidence that a particular payment qualifies.

Keep the LSDBA calculation separate

The standard LSDBA is £1,073,100 before protections and usage. Its scope is wider than LSA, so the two available balances should not be treated as interchangeable.

The usual standard transitional LSDBA deduction is 25% of the LTA previously-used amount. Different rules apply to specified historical serious ill-health and death-benefit cases, and full prior LTA usage normally leaves no LSDBA under the standard calculation. Certification can change that outcome where its conditions are met. HMRC: transitional LSDBA calculations.

Show both balances in the file, even when the immediate discussion concerns retirement cash.

Evidence, timing and implementation

HMRC requires complete evidence accounting for total historical LTA usage. Financial records, benefit crystallisation statements and bank statements may assist; the certification administrator decides whether the evidence is sufficient.

An application must result in a certificate or refusal within three months. For a living member, the certificate must be issued before entitlement to a relevant lump sum arises. An application in progress is insufficient.

A copy must be supplied to other relevant certification administrators within 90 days of receipt and before the first relevant benefit crystallisation event. An inaccurate certificate cannot be relied upon and may lead to recalculation and additional tax. HMRC: TTFAC requirements.

Suggested file prompts:

• Which records reconcile each historical event to the aggregate usage figure?
• What assumptions distinguish the standard and certificate calculations?
• Has the provider confirmed the entitlement date and any scheduled withdrawals?
• Who owns outstanding evidence requests and certificate distribution?
• Does the recommendation explain the cash available now, alongside the remaining allowances?

Common mistakes to avoid

Investigating only the pension that paid no cash can conceal an unfavourable overall comparison. Treating the application date as the deadline can also leave certification too late. Finally, describing extra allowance as cash already available can overstate the practical outcome.

A clear recommendation connects the historical evidence, both allowance calculations and the provider’s proposed payment. That gives the client an explanation they can understand and the next reviewer a calculation they can reproduce.

Technical position checked on 17 September 2026. For financial advisers.