Do I need a transitional tax-free amount certificate?

Since 6 April 2024, a client who took benefits under the old Lifetime Allowance doesn’t start the new regime with a clean £268,275 lump sum allowance. There’s a standard transitional deduction first — 25% of the LTA percentage they used — and it’s built on the assumption that every past crystallisation took the maximum tax-free cash. A Transitional Tax-Free Amount Certificate swaps that assumption for evidence of the tax-free cash actually paid. A certificate isn’t a lever you pull when it suits. It replaces the assumption with the facts, and it binds whichever way those facts fall. So “do I need one?” comes down to three questions.

1. Will the evidence beat the 25% assumption?

The default assumes maximum tax-free cash every time. That overstates things whenever income was taken without much cash alongside it — the classic case being defined-benefit scheme pension, where a big slice of the LTA gets used up for comparatively little PCLS. If the real tax-free amounts were lower than the default assumes, a certificate hands allowance back. Take a client who used 80% of the £1,073,100 LTA — that’s £858,480 crystallised — much of it DB pension, with scheme statements evidencing £150,000 of actual tax-free cash:

That’s £64,620 of headroom on these evidenced facts. A DB history, including one with no tax-free cash, is a reason to check the records and timing rather than an automatic “yes”.

2. Could the evidence be worse than the assumption?

It can — a valid certificate can reduce the available allowance. If a scheme-specific protected lump sum paid out more than 25%, the evidenced deduction comes in above the default. Same 80% history as before, but this time the evidence shows £250,000 of tax-free cash:

A valid certificate cannot be discarded for a better default, so applying before you’ve worked both paths is exactly how a £35,380 mistake happens. On these facts the default path leaves £35,380 more remaining allowance than a certificate would.

PTM174100 / PTM174300 — figures engine-computed against the 2026/27 config

3. Can your client still apply — and is the LSDBA in play?

For a living member, the certificate must be issued before entitlement to a relevant lump sum on or after 6 April 2024. Applying before that date is not enough. Ordinary drawdown income is not a relevant lump sum. Personal-representative applications have a separate death-benefit timing rule, so the decision aid above does not assess them. The death-benefit side matters too: a certificate substitutes evidence for both allowances at once, and pre-75 serious-ill-health lump sums and death benefits carry a 100% transitional default on the LSDBA, not 25%. If one of those sits in the history, it moves the death-benefit arithmetic far more than the LSA arithmetic — so model it before applying.

The short version

Establish the whole benefit history, compare both allowances and check the entitlement date before applying. No tax-free cash does not mean no LTA was used. A valid certificate cannot be discarded just because the default is better. If it is inaccurate, it must be cancelled and the actual transitional amounts used to recalculate the allowances and affected events. An inaccurate certificate cannot be relied on even before cancellation.

The TTFAC calculator runs the default and evidence paths side by side and shows the figure under each basis. For the full two-way mechanics, see when the certificate makes things worse.

PTM174300 (lock-in, evidence) · PTM174200 (LSDBA transitional defaults) · FA 2024 Sch 9