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KS5 · Year 12 / Year 13 · Lesson plan

Choosing your first pension at 18

A classroom-ready 50-minute KS5 lesson on UK auto-enrolment, the opt-out cost, salary sacrifice mechanics, and why starting a pension at 18 is among the most consequential financial decisions a young adult makes.

Key Stage
KS5
Year group
Year 12 / Year 13
Age range
16–18
Duration
50 minutes
Subject
PSHE / Economics / Citizenship
Cost
Free

Learning aim

Students can explain UK auto-enrolment, calculate the long-term cost of opting out, define salary sacrifice, and articulate why early pension contributions compound dramatically over a 47-year working life.

CURRICULUM National Curriculum links

RESOURCES What you'll need

LESSON Lesson structure (50 minutes)

Opening
HOOK
"You're 18, starting your first £22,000 job. You get auto-enrolled into a workplace pension. The deduction looks like 5% — about £92/month from your gross pay. You could opt out and keep that money. Should you?" Take 3 student responses, then say: "We'll calculate the actual cost of opting out today."
Direct teach
TEACH
Explain auto-enrolment: from age 22 with earnings >£10,000, employers must enrol you. Minimum 8% combined: typically 5% employee + 3% employer. The 3% employer match is FREE MONEY — opting out means losing it forever. Plus tax relief: a basic-rate earner's £92 employee contribution costs only ~£74 net. So for £74 net, you get ~£166 into your pension pot.
Pupils apply
GUIDED
Calculate: £92/month employee + £55 employer + £18 tax relief = £165/month into pension. Compound at 6% real return for 47 years (age 18 to 65). Result: ~£430,000. Compare: same £92/month into a regular savings account at 0% real return = £52,000. The compound + employer match difference: ~£378,000 over a working life. THIS is the cost of opting out.
Stretch / depth
CHALLENGE
Salary sacrifice: instead of the employee paying 5% from net pay, the employer reduces gross pay by 5% and pays that amount directly into the pension. Saves National Insurance (8% employee + 15% employer) on the sacrificed portion. For £92/month: NI savings ~£21/month between employee and employer. Some schemes pass the employer's saving back to the employee. So salary sacrifice can save BOTH tax and NI vs the default relief-at-source method.
Close
PLENARY
Students discuss in pairs: "What would I tell a friend who's thinking of opting out?" Take three answers. Land on: don't opt out — the employer match alone is worth more than the take-home pay you'd gain.

DIFFERENTIATION Adapting for all learners

Support (working below ARE)

Calculate only the employer match impact: £55/month × 12 × 47 years = £31,020 of FREE money missed by opting out, before any growth. Don't require compound interest calculation.

Stretch (working above ARE)

Students research the difference between Defined Benefit (DB) and Defined Contribution (DC) pension schemes. They calculate the present value of a £20,000/year DB pension at age 65 for someone retiring with 40 years of service.

SEND SEND adaptations

For pupils with autism: provide a clear visual timeline showing each contribution year. Use concrete examples ("£92 from each of 12 paychecks per year") rather than abstract percentages first.

EAL EAL support

Vocabulary: "auto-enrolment", "qualifying earnings", "employer match", "tax relief", "salary sacrifice", "Defined Contribution", "compound". Provide a glossary card. Sentence frames: "I should not opt out because ___."

ASSESSMENT Assessment criteria

Pupils can: (1) define auto-enrolment; (2) calculate the immediate cost of opting out (lost employer match + lost tax relief); (3) define salary sacrifice; (4) articulate why a pension started at 18 outperforms one started at 30 by a large multiple.

HOME Homework pack

Three activities consolidating pension decision-making at age 18. ~35 minutes.

Compound calculation

What pupils do: Calculate the pension pot at age 65 for a £25,000-salary worker who contributes 5% from age 18 (with 3% employer match) at 6% annual real growth. Compare to the same worker starting at age 28.

Expected output: 2 calculations with reasoning.

Marking guidance: 6 marks — 3 per calculation. Compound formula reference allowed.

Opt-out cost

What pupils do: In 250 words, explain to a friend why opting out of auto-enrolment is almost always a financial mistake.

Expected output: 250-word persuasive explanation.

Marking guidance: 6 marks — 2 for accuracy, 2 for clarity, 2 for persuasiveness.

Salary sacrifice

What pupils do: Define salary sacrifice in your own words and explain how it differs from "relief at source". Why does HMRC allow it?

Expected output: Short structured response.

Marking guidance: 4 marks — 2 for definition, 2 for difference vs RAS.

HOME Homework pack

Four activities to consolidate UK income tax mechanics. ~30 minutes.

Band calculation

What pupils do: For each gross salary, calculate the UK income tax (England/Wales/NI 2026/27 rates): (a) £15,000, (b) £30,000, (c) £55,000, (d) £85,000. Show the band split for each.

Expected output: 4 calculations with band-by-band working.

Marking guidance: 2 marks per accurate total (8 marks). Bonus 4 marks for correct band splits.

Personal Allowance research

What pupils do: What is the Personal Allowance? Why does it exist? Who loses it (the taper rule)?

Expected output: A 3-question short-answer response.

Marking guidance: 2 marks per accurate answer. 6 marks total.

Public spending

What pupils do: Find 5 different things UK income tax pays for. Order them by approximate share of government spending (biggest first).

Expected output: A ranked list of 5 spending categories.

Marking guidance: 1 mark per category, 1 mark per correct relative ranking. 8 marks total (e.g. NHS, pensions, education, defence, welfare).

Extension (optional)

What pupils do: Compare England, Scotland, and Wales income tax for someone earning £50,000. Which nation pays the most? Why?

Expected output: A 3-nation comparison table plus 2-sentence explanation.

Marking guidance: Up to 6 marks for accurate research and conclusion (Scotland pays more above ~£28k).

Family discussion prompt (safeguarding-aware)

Ask a working adult: "Name three things you think our tax money pays for." Compare their answers to what you learned in class.

SAFEGUARDING Classroom safeguarding

Note for teachers: Do not ask pupils about their own family's tax band, salary, or income. Frame all examples through fictional salaries. Be aware some pupils may be unsure of family financial circumstances — focus on the public-spending side of the lesson, not personal income.

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