The Taxation of Pension Income: What Most People Get Wrong
The most expensive mistake in retirement planning is not failing to save enough — it is failing to plan how to draw the savings you have accumulated. Unplanned pension access can result in income tax bills that consume 20%, 40%, or even 45% of every pound withdrawn. The cumulative cost of poor withdrawal planning, measured across a 25-year retirement, routinely exceeds £50,000 for individuals with modest pension savings and can run to six figures for those with substantial pots.
The fundamental reality is straightforward: pension income — everything except your 25% tax-free entitlement — is treated as ordinary income for UK Income Tax purposes. It is added to every other source of income you receive in a tax year (State Pension, rental income, dividends, part-time earnings), and taxed at the same rates as earned income. The challenge is that most people take no steps to manage how, when, and in what sequence they draw pension income — and as a result, they pay far more tax than necessary on every retirement payment they receive for the rest of their lives.
At Pauras, our tax planning specialists provide structured, evidence-based withdrawal strategies that legally minimise income tax, manage National Insurance implications, optimise the use of the tax-free allowances available, and now — in light of the April 2027 changes — account for the interaction between income tax on drawdown and Inheritance Tax on pension assets that die within the pot.
Understanding the Income Tax Framework for Pension Recipients
For 2026/27, the relevant Income Tax thresholds are:
- Personal Allowance: £12,570 — income below this threshold is entirely tax-free. The State Pension at £11,502.40 per year consumes approximately 91.5% of the Personal Allowance, leaving only £1,067.60 before additional pension income becomes taxable.
- Basic Rate Band: 20% — income between £12,571 and £50,270 per year. This band is where most pension drawdown income falls for typical retirees.
- Higher Rate Band: 40% — income between £50,271 and £125,140. A significant and often unexpected tax rate for retirees with substantial pension pots who access them without planning.
- Additional Rate Band: 45% — income above £125,140. Applicable to high-earning retirees or those who take very large pension withdrawals in a single tax year.
- Personal Allowance Taper: Above £100,000 adjusted net income, the Personal Allowance tapers at £1 for every £2 of income above the threshold — creating an effective 60% marginal rate between £100,000 and £125,140. Pension withdrawals that push income into this range without planning are extraordinarily costly.
The critical implication is this: every £1 of pension income taken in a tax year in which your total income exceeds £50,270 costs you 40p in tax — not 20p. Taking a large pension lump sum in a single year, without coordination with other income sources, can push a substantial portion of the withdrawal into the higher rate band. Spreading the same total withdrawal across two or three tax years, utilising the full basic rate band in each, results in the same total income but dramatically less tax.
The 25% Tax-Free Lump Sum — Strategy and Structure
Every pension member is entitled to take 25% of their pension pot as a Pension Commencement Lump Sum (PCLS), free of Income Tax. From April 2024, this is capped at a lifetime maximum of £268,275 across all pension schemes — but for the majority of individuals, whose pension wealth does not approach this level, the 25% rule applies without restriction.
The manner in which the tax-free entitlement is accessed has significant tax implications:
Traditional Crystallisation: The full 25% tax-free cash is taken as a single lump sum when the pension is crystallised (accessed), with the remainder moved into drawdown and taxed when withdrawn. This approach maximises immediate tax-free receipt but potentially triggers a large taxable drawdown fund simultaneously. It also requires careful management to avoid using the tax-free cash at a point when it creates tax problems elsewhere.
Uncrystallised Funds Pension Lump Sum (UFPLS): Under UFPLS rules, any single withdrawal from an uncrystallised pension pot is treated as 25% tax-free and 75% taxable. This allows the tax-free entitlement to be drip-fed alongside the taxable portion over many years — significantly reducing the risk of pushing taxable income into higher rate bands in any single year. For many retirees, the UFPLS approach provides greater long-term tax efficiency than taking all tax-free cash upfront.
Phased Drawdown: By crystallising the pension in stages — accessing only a portion of the fund each year — it is possible to take the 25% tax-free portion of each tranche while drawing taxable income at a carefully managed rate. This is perhaps the most flexible approach, allowing the retirement income level to be adjusted year by year to remain within the most tax-efficient bands.
Our tax specialists model all three approaches for each client, using projections of fund value, expected investment growth, other income sources, and life expectancy assumptions to identify the optimal strategy for their specific circumstances.
PAYE Code Management: The Hidden Source of Tax Overpayment
When you begin drawing pension income, HMRC issues a PAYE tax code to your pension provider, which uses it to deduct income tax from your pension payments before they reach you. The system is designed to work seamlessly — but in practice, pension PAYE code errors are extremely common and frequently result in significant tax overpayments that can take years to recover if not promptly identified.
Common PAYE code errors we identify include: a basic rate emergency tax code (1257L M1/W1) applied to a new pension payment, resulting in tax being deducted at the basic rate on the entire payment rather than allowing for the Personal Allowance; failure to account for multiple pension income sources, resulting in incorrect allowance allocation; tax code adjustments that fail to reflect deferred income, state benefit income, or self-employed income; and cumulative coding errors that cascade across multiple tax years.
In one recent case, a client receiving three pension payments — State Pension, a workplace pension, and SIPP drawdown — was paying approximately £3,800 per year more in PAYE tax than their correct liability due to miscommunication between three separate PAYE references and an incorrect Personal Allowance allocation. We identified the error, submitted corrective P50 forms, and secured a rebate of £7,600 for the two years of overpayment. PAYE code review is now part of our standard annual service for all pension clients.
The Money Purchase Annual Allowance (MPAA): A Critical Trap for Working Retirees
The Money Purchase Annual Allowance is one of the most consequential and least understood rules in UK pension legislation. Once you begin flexibly drawing income from a defined contribution pension — through flexi-access drawdown or via UFPLS — your annual allowance for further defined contribution pension contributions drops immediately and permanently from £60,000 to just £10,000.
The MPAA trigger applies the moment flexible income is first taken, regardless of the amount drawn, and cannot be reversed. For individuals who are still in employment and contributing to a workplace pension alongside their drawdown income — increasingly common as people work past traditional retirement ages — the MPAA severely restricts their ability to build additional pension wealth in their working years.
The consequences of inadvertently triggering the MPAA without understanding its implications can be severe. If your total defined contribution pension contributions (including employer contributions) in a tax year exceed £10,000, you face an annual allowance charge on the excess at your marginal tax rate. We have managed cases where clients triggered the MPAA unknowingly by taking a small income drawdown payment, then continued contributing £20,000+ per year to a workplace pension — generating annual allowance charges of £4,000–£8,000 per year that could entirely have been avoided.
Our service includes a specific MPAA assessment for every client considering pension access — confirming whether the MPAA will apply, whether it has already been triggered, and restructuring the access strategy to avoid inadvertent triggering where possible. Where the MPAA has already been triggered, we restructure ongoing contributions across all available pension arrangements to work optimally within the £10,000 constraint.
Pension Inheritance Tax Changes: April 2027 — Act Now
The most significant change to UK pension taxation in a generation is scheduled for April 2027: the inclusion of pension assets within the scope of Inheritance Tax for the first time. Prior to this date, pension pots fall outside the estate for IHT purposes — meaning they can pass to beneficiaries free of the 40% IHT charge, with income tax payable only when drawn down.
From April 2027, pension assets remaining at death will be included in the deceased's estate for IHT calculation purposes. For estates above the IHT nil rate band (currently £325,000, rising to £500,000 with the residence nil rate band for property passing to direct descendants), this creates a potential combined tax burden of IHT at 40% on the pension pot, followed by income tax on subsequent drawdown — an effective combined tax rate that can approach 67% in the most extreme cases.
The practical implications depend on the size of the pension pot, the overall estate value, the identity of intended beneficiaries, and whether existing estate planning structures can be adapted. Key considerations include: whether accelerating pension drawdown before April 2027 and moving assets into an ISA (which retains IHT protection through trust structures for spouses) is advantageous; whether the revised nomination structure of the pension benefits from specific beneficiary designation to benefit from spousal exemptions; and how the pension interacts with the wider estate planning approach including trusts, gifting, and life insurance arrangements.
We are conducting urgent pension IHT planning reviews for all clients with significant pension wealth. If your estate is likely to be taxable for IHT purposes and you have a pension pot of £100,000 or more, a specialist review of your position before April 2027 is essential. Contact us to arrange this review — the window for effective planning is open now, but it will not remain so indefinitely.
Pre-Retirement Tax Planning: Salary Sacrifice and Contribution Structuring
For those still in the accumulation phase, the tax planning around pension contributions is just as important as the planning around withdrawals. Salary sacrifice — where pension contributions are made as a reduction in gross salary rather than from net pay — eliminates employee National Insurance (currently 8% within the basic rate band) and employer NI (13.8%) on the amount sacrificed. The employer NI saving is frequently shared with the employee as an additional pension contribution, effectively boosting the value of every pension contribution by 13.8% at no cost to either party.
Our pre-retirement tax planning service assesses whether your employer offers salary sacrifice, calculates the financial benefit specific to your income level and contribution rate, structures carry-forward contributions to maximise tax relief in your highest-earning years, and coordinates pension contribution timing with other income events — including bonus payments, dividend planning for business owners, and rental income management — to optimise the total tax position across each tax year.
Contact Pauras today for a comprehensive tax planning review. Our specialists bring together pension legislation knowledge, income tax expertise, and NI system understanding to provide a genuinely integrated service. The initial consultation is free — call +44 800 470 1139 or submit an enquiry online.