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KS4 · Year 10 · Lesson plan

ISAs explained — the tax-free way to save

A classroom-ready 60 minutes lesson plan with starter, main, plenary, differentiation, SEND adaptations, EAL support and assessment criteria. Free to use, no login.

Key Stage
KS4
Year group
Year 10
Age range
14–15
Duration
60 minutes
Subject
Maths / PSHE / Citizenship
Cost
Free

Learning aim

Pupils can explain what an ISA is, distinguish between Cash ISA and Stocks & Shares ISA, and describe the transition from Junior ISA to Adult ISA at age 18.

CURRICULUM National Curriculum links

RESOURCES What you'll need

LESSON Lesson structure (60 minutes)

Opening
HOOK
"Is there a way to earn money on your savings WITHOUT paying tax on what you earn?" Take answers. Reveal: yes — Individual Savings Accounts, or ISAs. UK adults can put up to £20,000 a year into an ISA and pay zero tax on the interest or investment gains. Under-18s can do the same with a Junior ISA up to £9,000/year.
Direct teach
TEACH
Define ISA: "a tax-free wrapper around your savings or investments." Walk through four ISA types: Cash ISA (like a savings account, earns interest, capital is safe, lower returns); Stocks & Shares ISA (invests in shares and funds, capital can go up or down, historically higher long-term returns); Junior ISA (JISA) (for under-18s, £9,000/year limit, becomes Adult ISA automatically on 18th birthday); Lifetime ISA (LISA) (for first-time house buyers or retirement, £4,000/year limit, 25% government top-up). Stress: the £20,000 adult limit is shared across all your ISAs.
Pupils apply
GUIDED
Pupils complete a comparison table for the four ISA types: contribution limit, age eligibility, what it invests in, risk level, what it's for. Then calculate using compound interest: "If you put £100/month into a Junior ISA from age 0 to 18, with 5% average return, what do you have at 18?" (~£35,000.) Worked using the formula from the compound interest lesson or a worksheet table.
Stretch / depth
CHALLENGE
"You're 16. A grandparent gives you £500 for your birthday. You have three options: (a) put it in a Cash JISA at 3%; (b) put it in a Stocks & Shares JISA averaging 7% long-term but with year-to-year ups and downs; (c) wait until 18 and put it in a Lifetime ISA for a future house deposit." Discuss in pairs: which is best, and why? Build the framing: depends on the goal (short term vs long term), risk tolerance, and what the money is for. There isn't one "right" answer.
Close
PLENARY
Each pupil writes: "An ISA is special because ___" and "I would choose a ___ ISA because ___." Share three. Final question: "What happens to your Junior ISA money on your 18th birthday?" (It becomes an Adult ISA — you can then put up to £20,000/year in.)

DIFFERENTIATION Adapting for all learners

Support (working below ARE)

Focus on Cash ISA only. Calculate interest at simple rates. Use round numbers. Build understanding of the "tax-free wrapper" concept before any other detail.

Stretch (working above ARE)

Compare Junior ISA + Adult ISA growth over 30 years vs the same money in a taxable savings account at 40% higher-rate tax. Calculate the difference. Explain why the tax-free wrapper matters MORE for higher-rate taxpayers.

SEND SEND adaptations

For pupils with autism: provide a clear flowchart "what's your goal? → which ISA?" For pupils with dyscalculia: pre-fill calculations or use a calculator table. For pupils with EAL: use the comparison table as the main resource.

EAL EAL support

Vocabulary: "ISA", "wrapper", "tax-free", "limit", "stocks", "shares", "principal", "compound", "Lifetime", "Junior". Sentence frame: "An ISA is ___. The difference between Cash and Stocks & Shares is ___."

ASSESSMENT Assessment criteria

Pupils can: (1) define ISA in one sentence; (2) name three types of ISA; (3) explain who Junior ISAs are for and what happens at 18; (4) calculate compound growth on a £1,000 ISA at 5% for 10 years.

HOME Homework pack

Four activities to master UK ISAs. ~35 minutes.

ISA type matrix

What pupils do: Compare the 4 main ISA types: Cash ISA, Stocks & Shares ISA, LISA (Lifetime), Innovative Finance ISA. For each: who it's for, annual limit, risk level, access rules.

Expected output: A 4-row × 4-column comparison table.

Marking guidance: 1 mark per accurate cell. 16 marks total.

LISA penalty calculation

What pupils do: A 25-year-old has £4,000 in a Lifetime ISA. They got the £1,000 government bonus. They withdraw £5,000 early for a holiday (not a first home, not retirement). What's the penalty? How much do they actually receive?

Expected output: A penalty calculation.

Marking guidance: 3 marks for £1,250 penalty (25% × £5,000), 2 marks for £3,750 received.

Compounding the £20k

What pupils do: Imagine you put £100/month into an ISA from age 18 to age 38 (£24,000 total). At 7% annual return, what would it be worth at age 38? Use an online calculator.

Expected output: A final value + a 2-sentence reflection.

Marking guidance: 4 marks for accurate calculation (~£51,000+), 2 marks for a thoughtful reflection on compounding.

Extension (optional)

What pupils do: A 16-year-old has £8,000 in a JISA from grandparent gifts. At 18, it becomes their adult ISA. Should they (a) leave it as cash, (b) move it to a S&S ISA, or (c) withdraw it? Write a 200-word reasoned answer.

Expected output: A 200-word recommendation with reasoning.

Marking guidance: Up to 8 marks for clear reasoning, accurate facts, and a defensible choice.

Family discussion prompt (safeguarding-aware)

Ask a working adult: "Do you have an ISA? Cash or Stocks & Shares? When did you open it?"

SAFEGUARDING Classroom safeguarding

Note for teachers: Do not ask pupils about their family's ISAs or savings. Use generic examples. Be aware some families may not have ISAs for cultural or financial reasons — frame as "this is how it works when you have money to save".

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