Savings & Debt

The question everyone asks

"Should I save money or pay off debt first?"

The answer depends on one number: the interest rate on your debt compared to the interest rate on your savings.

If you're paying 22% APR on a credit card and earning 4% AER on a savings account, every pound going to savings effectively costs you 18% in lost ground. The maths is clear: pay the expensive debt first.

But there's a human side too. Having zero savings and an unexpected boiler repair means going deeper into debt. That's why most financial guidance suggests building a small emergency buffer (1,000) even while paying off debt, then throwing everything at the debt.

Diagram: Save or Pay Debt?

Good debt vs bad debt

Not all debt is equal. The difference comes down to what the debt is doing for you.

Debt that builds something:

• Mortgage -- builds ownership of an asset that typically grows in value. Interest rates are usually low (4--6%).
• Student loan -- increases your earning potential. Repayment is income-based and written off after 25--40 years. Functionally a graduate tax, not a traditional debt.
• Business loan -- funds growth that should generate returns greater than the interest cost.

Debt that costs you:

• Credit cards -- 20--40% APR. Unless paid in full each month, compound interest makes everything you bought cost significantly more.
• Overdrafts -- arranged overdrafts charge 35--40% EAR at most major banks. They feel convenient until you're stuck in one permanently.
• Buy Now Pay Later -- 0% for the initial period, but missed payments trigger fees and can affect your credit score. Multiple BNPL agreements make it easy to lose track of total obligations.
• Payday loans -- the most expensive form of borrowing. Avoid entirely.

Jargon Buster: APR vs AER APR (Annual Percentage Rate) is the cost of borrowing, including fees. Used for loans and credit cards. Higher is worse. AER (Annual Equivalent Rate) is the return on savings, accounting for compounding. Used for savings accounts. Higher is better. Both express annual rates so you can compare like for like.

Paying off debt: Snowball vs Avalanche

Two proven strategies for clearing multiple debts:

Avalanche method -- Pay minimum on everything, throw all spare money at the debt with the highest interest rate. Mathematically optimal. Saves the most money overall.

Snowball method -- Pay minimum on everything, throw all spare money at the smallest balance first. Less efficient mathematically, but clearing a debt completely gives you momentum and motivation.

Both work. The avalanche saves more in interest. The snowball keeps more people on track because the wins come faster. Pick whichever you'll actually stick with.

Method	Best for	Drawback
Avalanche	Saving the most money	The biggest debt might take months to clear, which feels slow
Snowball	Staying motivated	You pay more interest overall by ignoring rates

Emergency fund: How much is enough?

An emergency fund is money set aside for genuine emergencies -- a broken boiler, unexpected car repair, or losing your job. It's not a holiday fund or a "treat yourself" pot.

Target amounts by stage:

1. Starter fund: 1,000 -- Covers minor emergencies. Build this first, even while paying debt.
2. Solid fund: 3 months of essential expenses -- Covers a period of unemployment or major repair. Build this once high-interest debt is cleared.
3. Comfortable fund: 6 months of expenses -- Extra security if you're self-employed, have a mortgage, or want peace of mind.

Keep your emergency fund in an easy-access savings account -- not locked away, not invested. The point is that you can access it within a day when something goes wrong.

ISAs: Tax-free savings

An ISA (Individual Savings Account) is a wrapper around savings or investments that makes the returns tax-free. You can put up to 20,000 per tax year into ISAs across all types combined.

ISA type	What it does	Best for
Cash ISA	Savings account where interest is tax-free	Emergency fund, short-term savings
Stocks & Shares ISA	Investment account where gains and dividends are tax-free	Long-term savings (5+ years)
Lifetime ISA	Government adds 25% bonus (up to 1,000/year)	First home purchase or retirement (18--39 to open)
Innovative Finance ISA	Peer-to-peer lending, tax-free returns	Higher risk tolerance

For most people earning under 50,270, the Personal Savings Allowance already makes the first 1,000 of savings interest tax-free. So a Cash ISA only gives an extra benefit once your savings generate more than 1,000/year in interest (roughly 25,000+ in savings at 4% AER).

Jargon Buster: Personal Savings Allowance Basic rate taxpayers can earn up to 1,000/year in savings interest tax-free (without needing an ISA). Higher rate taxpayers get 500. Additional rate taxpayers get nothing. This is separate from your ISA allowance.

Pensions: The money you can't touch yet

Your workplace pension is probably the best investment you're making and you might not even know it. Under auto-enrolment, your employer must contribute at least 3% and you contribute at least 5% of your qualifying earnings.

Here's what makes pensions powerful:

1. Tax relief -- Your 5% contribution is taken before tax, so a 100 pension contribution only costs you 80 (at basic rate). The government effectively tops up your savings by 25%.
2. Employer match -- Your employer adds 3% on top. That's free money. If they offer to match higher contributions, consider it seriously.
3. Compound growth -- Money invested for 30+ years grows significantly through compounding.

The trade-off: you can't access pension money until age 57 (rising to 58 from 2028). But for long-term savings, nothing beats the tax advantages.

Jargon Buster: Auto-enrolment A law requiring employers to put eligible workers into a workplace pension. You're automatically enrolled if you're 22+ and earn 10,000+/year. You can opt out, but you'd lose the employer contribution. In almost all cases, opting out costs you money.

Student loans: Not like other debt

If you have a student loan, here's what matters:

• You only repay above a threshold. Plan 1: 9% of income above 24,990/year. Plan 2: 9% above 27,660. Plan 5: 9% above 25,000.
• It comes off your payslip automatically (like tax and NI).
• It's written off eventually. Plan 1: 25 years. Plan 2: 40 years. Plan 5: 40 years.
• It doesn't affect your credit score (it's not on your credit report).
• Overpaying rarely makes sense. If you won't clear the balance before it's written off, overpaying just means you paid back more than you needed to.

The practical advice: treat your student loan like a graduate tax. It comes off your pay, it doesn't affect your ability to get a mortgage (lenders factor in the reduced take-home, not the loan balance), and for most people, voluntarily paying it off faster is the wrong financial move.

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Real Scenario: Steve's debt situation

Steve earns 28,000 and brings home 1,857 per month. He has:

• Credit card: 2,800 balance at 22% APR (minimum payment: 65/month)
• Overdraft: 500 used on a 1,000 arranged overdraft at 39.9% EAR
• Savings: 200 in a current account

Steve's monthly surplus after needs (1,225) and minimal wants (200) is about 432.

Steve's plan (avalanche method):

1. Month 1--3: Build emergency fund to 1,000. Put 267/month into easy-access savings (keeping 165/month for minimum payments on debt). After 3 months: 1,000 emergency fund.
2. Month 4--7: Attack the overdraft first (highest rate at 39.9%). Put 432/month minus 65 credit card minimum = 367/month to overdraft. Overdraft cleared in about 6 weeks.
3. Month 8--15: All 432/month to credit card. Cleared in about 7 months.
4. Month 16+: No debt. 432/month into savings. Reach 3-month emergency fund (3,675) by month 24.

Total interest saved vs minimum payments only: approximately 580.

The key learning: Steve's debt felt overwhelming, but a clear sequence -- emergency fund, then highest-rate debt, then next-highest -- makes it manageable. The hardest part is the first three months when you're building the emergency fund while debt still grows. After that, every cleared debt accelerates the next payoff.

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Checklist: Getting your savings and debt sorted

• List all debts with balances, interest rates, and minimum payments
• List all savings accounts with balances and interest rates
• Build a 1,000 starter emergency fund (easy-access savings account)
• Choose avalanche (highest rate first) or snowball (smallest balance first)
• Set up standing orders for debt overpayments on payday
• Check you're not opted out of your workplace pension
• If your employer offers contribution matching above the minimum, consider increasing your contributions
• Open a Cash ISA or Lifetime ISA if saving for a first home

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Jargon Buster

Term	Plain English
APR	Annual Percentage Rate -- the yearly cost of borrowing, including fees
AER	Annual Equivalent Rate -- the yearly return on savings, including compounding
ISA	Individual Savings Account -- a tax-free wrapper for savings or investments
Lifetime ISA	An ISA with a 25% government bonus, for first homes or retirement
Compound interest	Earning interest on your interest. Over long periods, this makes a huge difference
Auto-enrolment	The law requiring employers to put you into a workplace pension
Qualifying earnings	The portion of your pay that pension contributions are calculated on (currently 6,240 to 50,270)
Personal Savings Allowance	Up to 1,000 of savings interest earned tax-free per year (basic rate taxpayers)
Credit score	A number that lenders use to decide whether to lend to you and at what rate. Built by a history of borrowing and repaying on time