How Pension Drawdown Actually Works: A Step-by-Step Guide

You've spent decades saving into your pension. Now you want to start using it. But how does it actually work? The process is less complicated than the jargon makes it sound — but there are choices that most people don't realise they have.

The Big Picture

When you reach 55 (rising to 57 in 2028), you can start accessing your defined contribution pension. You have three broad options:

1. Drawdown — keep your money invested, withdraw as needed 2. Annuity — swap your pot for a guaranteed income for life 3. Take it all as cash — possible but usually terrible for tax reasons

Most people now choose drawdown, and you can combine it with a partial annuity. Let's focus on how drawdown works.

Step 1: Crystallisation — "Switching On" Your Pension

Before you can take money from your pension, it needs to be crystallised. This is just the technical term for converting your pension from "saving" mode to "spending" mode.

You Don't Have to Crystallise Everything at Once

This is the part most people don't realise. You can crystallise your pension in stages:

Example: You have a £300,000 pension pot.

• Year 1: Crystallise £100,000 (take £25,000 tax-free, put £75,000 into drawdown)
• Year 2: Crystallise another £100,000 (take another £25,000 tax-free, add £75,000 to drawdown)
• Year 3: Crystallise the final £100,000

This is called phased drawdown and it has real advantages:

• Spreads your tax-free cash over multiple years
• Keeps uncrystallised money outside of drawdown (simpler)
• Gives you flexibility to adjust as circumstances change
• The uncrystallised portion continues growing without triggering the Money Purchase Annual Allowance (MPAA)

Step 2: Your Tax-Free Cash (25%)

When you crystallise, you can take 25% of the crystallised amount as a tax-free lump sum. This is called the Pension Commencement Lump Sum (PCLS).

You Have Options

Option A: Take 25% upfront as a lump sum (PCLS) Crystallise your pot, take 25% as tax-free cash into your bank account, and the remaining 75% goes into your drawdown pot. This is the most common approach.

Option B: Take it gradually via UFPLS Instead of crystallising into drawdown, you can take Uncrystallised Funds Pension Lump Sums (UFPLS). Each withdrawal from your uncrystallised pot is automatically split: 25% tax-free, 75% taxable. No formal crystallisation needed.

Option C: Don't take it at all You don't have to take your tax-free cash. You can crystallise into drawdown and just leave the full 100% invested. Some people do this if they don't need the cash now.

Which Should You Choose?

PCLS (take 25% upfront) is best if:

• You have a specific use for the lump sum (pay off mortgage, home improvements)
• You want to put the tax-free cash into an ISA to invest tax-efficiently
• You want a clear separation between tax-free and taxable money

UFPLS (gradual withdrawals) is best if:

• You don't need a big lump sum
• You want to draw income gradually
• You want to keep things simple without formally entering drawdown

The key difference: With PCLS, you take all your tax-free cash upfront and everything after that is fully taxable. With UFPLS, each withdrawal is always 25% tax-free. Over time, you get the same total tax-free amount — it's just spread differently.

Step 3: Your Drawdown Pot

After taking your tax-free cash (if you choose to), the remaining money goes into flexi-access drawdown. This is where the ongoing action happens.

How Withdrawals Work

Your drawdown pot stays invested — typically in funds, shares, bonds, or a mix. You can withdraw any amount, at any time. There's no minimum, no maximum, and no set schedule.

Common approaches:

• Regular monthly income — set up a "salary" from your pension (e.g., £1,500/month)
• Ad hoc withdrawals — take money when you need it (car repair, holiday, etc.)
• Annual lump sums — take a year's worth at the start of each year
• Nothing yet — crystallise to access tax-free cash but leave the drawdown pot untouched

Tax on Drawdown Withdrawals

Every withdrawal from your drawdown pot is treated as taxable income, just like a salary. It's added to your other income for that tax year:

• First £12,570 of total income: 0% (personal allowance)
• £12,571 to £50,270: 20% (basic rate)
• £50,271 to £125,140: 40% (higher rate)
• Over £125,140: 45% (additional rate)

Important: Your State Pension counts as income too. If your State Pension is ~£12,000/year, it uses up most of your personal allowance. That means pension drawdown income on top is taxed from the first pound.

The First Withdrawal Tax Trap

When you make your first drawdown withdrawal, HMRC doesn't know if it's a one-off or regular income. They may apply an emergency tax code, taxing the withdrawal as if you'll receive that amount every month.

Example: You take a one-off £15,000 withdrawal. HMRC might tax it as if you'll earn £180,000/year (£15,000 × 12). You'll get the overpaid tax back, but it can take weeks or months via a P800 refund or your next tax return.

How to avoid this: Contact HMRC before your first withdrawal and ask them to set your tax code correctly. Or accept the overtaxation and claim it back.

Step 4: Managing Your Drawdown

The Investment Question

Your money is still invested during drawdown. This means:

• It can still grow — your pot doesn't just shrink as you withdraw
• It can also fall — a market crash reduces your pot
• You need a strategy — too cautious and inflation eats your money; too aggressive and a crash at the wrong time is devastating

A common approach:

• Keep 1-2 years of withdrawals in cash within the drawdown pot (your "spending buffer")
• Invest the rest in a diversified mix of equities and bonds
• Refill the cash buffer periodically from investments when markets are good
• If markets crash, spend from the cash buffer and wait for recovery

How Long Will It Last?

This is the million-pound question. It depends on:

• How much you withdraw — the 4% "rule" suggests withdrawing 4% of your initial pot (adjusted for inflation) gives you about a 30-year runway. But it's a guideline, not a guarantee.
• Investment returns — higher returns mean your pot lasts longer
• Inflation — you'll need to increase withdrawals over time to maintain buying power
• Sequence of returns — bad returns early in drawdown hurt more than bad returns later

This is exactly what our calculator models for you — year-by-year projections showing when (if ever) your money runs out.

The MPAA: Watch Out

Once you take taxable income from drawdown (or UFPLS), the Money Purchase Annual Allowance kicks in. Your annual allowance for future pension contributions drops from £60,000 to just £10,000.

This matters if you're still working while drawing from a pension. Taking your 25% tax-free cash alone does NOT trigger the MPAA — only taxable withdrawals do.

Phased Drawdown in Practice

Here's how phased drawdown typically works in reality:

Sarah, age 60, pension pot £400,000:

Over 5 years, Sarah takes £100,000 tax-free (in five £20,000 chunks) and builds up a £300,000 drawdown pot (plus any investment growth). She can draw income from the drawdown portion at any point.

Why this is smart:

• Tax-free cash is spread over 5 years — useful if she doesn't need it all at once
• She could put each year's tax-free cash into an ISA for tax-free growth
• The uncrystallised portion doesn't trigger MPAA, so she can still contribute to pensions if she's working

What Happens When You Die?

Drawdown pots can be inherited — this is one of the biggest advantages over annuities:

• Die before 75: Beneficiaries can take the entire pot tax-free (as a lump sum or drawdown)
• Die after 75: Beneficiaries pay income tax on withdrawals at their marginal rate

This makes drawdown very attractive for estate planning. An annuity typically dies with you (unless you've paid for guarantees). A drawdown pot passes to your family.

Getting Started: What to Actually Do

1. Check you can access your pension — are you over 55? Is your provider set up for drawdown? 2. Decide how much to crystallise — all at once or phased? 3. Take your tax-free cash — or don't, if you don't need it 4. Set up withdrawals — regular income, ad hoc, or none yet 5. Choose your investment strategy — or get advice if you're not comfortable doing it yourself 6. Review annually — is your withdrawal rate sustainable? Do investments need adjusting?

When to Get Advice

Consider paying for independent financial advice if:

• Your pot is over £100,000
• You have a defined benefit pension you're thinking of transferring
• You're not confident managing investments
• You have complex tax situations
• You want help with the crystallisation strategy

A good adviser typically charges £1,000-£3,000 for initial drawdown setup and advice. Given the sums involved and the irreversibility of some decisions, it's often money well spent.

Model your drawdown strategy with real numbers. Our calculator shows you year by year how your pension pot performs under different withdrawal rates and scenarios.