🧠 Beginner’s Guide: Best High-Interest Savings Accounts in the UK & USA (July 2025)

New to saving?
Or tired of seeing pennies in interest every year?

Whether you’re building your emergency fund or saving for your first big goal — this beginner-friendly guide shows you where to put your money in 2025 to earn up to 10x more than a regular bank.


🏦 What Is a High-Interest (or High-Yield) Savings Account?

A high-interest savings account gives you much better returns on your money than traditional banks.

While regular banks may offer 0.10%–0.50%, high-interest accounts in 2025 offer:

  • UK: Up to 5.20% AER
  • USA: Up to 4.60% APY

💡 That means £10,000 or $10,000 earns £520/$460 per yearpassively.


🔐 Are These Accounts Safe?

Yes — they are 100% secure and regulated.

  • 🇬🇧 UK: FSCS protected up to £85,000
  • 🇺🇸 USA: FDIC insured up to $250,000 (or up to $2 million via SoFi’s partner network)

Your money is fully protected, even if the bank closes.


🌍 Best Accounts in the UK (2025)

1. Zopa Smart Saver5.20% AER

  • ✅ Highest interest
  • ⏳ 7 to 95 days notice required
  • 📱 Easy-to-use app

Best For: Long-term saving goals like house deposits or tuition.


2. Chase UK5.10% AER

  • ✅ Instant access
  • 💳 Cashback on debit card
  • 📲 Smart budgeting tools

Best For: Everyday savers who want interest + spending perks.


3. Tandem Bank5.00% AER

  • ✅ Instant access
  • 🌱 Eco-friendly, green lending
  • 💡 Clear app experience

Best For: New savers and ethical users.


🌎 Best Accounts in the USA (2025)

1. SoFi Savings4.60% APY

  • ✅ Highest APY in the U.S.
  • 🔁 Combo account with checking
  • 💰 Up to $2M FDIC insurance

Best For: Digital-first savers who want all-in-one banking.


2. Synchrony Bank4.50% APY

  • ✅ Instant access
  • 🏧 Comes with optional ATM card
  • 💬 No monthly fees

Best For: People who want online savings + occasional cash access.


3. Marcus by Goldman Sachs4.40% APY

  • ✅ Clean, simple interface
  • 🧾 No minimum deposit
  • 🏦 Reputable, stable option

Best For: Classic savers who prefer simplicity.


💰 How Much Can I Earn?

AmountTraditional Bank (0.50%)High-Yield Account (5.00%)
£1,000 / $1,000£5 / $5£50 / $50
£5,000 / $5,000£25 / $25£250 / $250
£10,000 / $10,000£50 / $50£500 / $500

🧮 You could earn 10x more with the same money.


🛠️ How to Open One (Takes 5–10 Minutes)

  1. Visit the bank’s website or app
  2. Tap “Open Account”
  3. Fill in your info (ID, address, etc.)
  4. Link your current bank account
  5. Transfer funds and start earning

No paperwork. No fees. No in-person visits.


🧭 Which One Should You Choose?

Your NeedUK PickUSA Pick
Highest interestZopaSoFi
Instant accessChase / TandemMarcus / Synchrony
Eco-conscious savingTandemSoFi
ATM accessN/ASynchrony
Beginner-friendly experienceChase UKMarcus

🎓 Pro Tips for Beginners:

  • Start with any amount, even £100 or $100
  • Set small goals (e.g. emergency fund, travel fund)
  • Automate deposits monthly
  • Don’t withdraw often — let it grow
  • Re-check rates every few months

🏁 Final Thought

If you’re not earning at least 4.5% on your savings in 2025, you’re missing out.

✅ No risk
✅ Easy access
✅ Free to set up
✅ Passive income