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The Daily Interest

Insights for smarter retirement planning

Practical thinking on pensions, tax, investment strategy, and the maths behind your financial future.

For general information and educational purposes only — not financial advice. Consult a qualified financial adviser before making any financial decisions.
Understanding Monte Carlo Simulations for Retirement
Monte CarloFeatured

Understanding Monte Carlo Simulations for Retirement

How probability-based modelling can give you more confidence in your retirement plan — and why a single forecast isn't enough.

20 Mar 2026 · 8 min read
Daniel Kahneman and Your Money: What a Psychologist Taught Us About Investing
Investing

Daniel Kahneman and Your Money: What a Psychologist Taught Us About Investing

Kahneman never worked in finance, yet his research explains more about investor behaviour than most economics textbooks. Here's what every saver should take from his life's work.

8 Apr 2026 · 11 min read
How Much Should My Emergency Fund Be?
Planning

How Much Should My Emergency Fund Be?

Three to six months of essential spending is the standard answer. The word 'essential' does a lot of work there. A practical UK guide to sizing — and actually building — your emergency fund before you start investing.

8 Apr 2026 · 16 min read
Premium Bonds — Are They Actually Worth It?
Saving

Premium Bonds — Are They Actually Worth It?

NS&I's prize fund rate sounds competitive. But most holders earn far less than it suggests. Here's what the numbers actually look like.

7 Apr 2026 · 7 min read
New Tax Year 2026/27: Everything Changing From April
Tax

New Tax Year 2026/27: Everything Changing From April

State pension rises, benefits increase, the two-child cap is lifted, and frozen thresholds drag more people into higher tax bands. Here's what it all means for your money.

6 Apr 2026 · 6 min read
Iran, Energy Prices, and What It Means for Your Portfolio
Investing

Iran, Energy Prices, and What It Means for Your Portfolio

The situation in Iran is escalating, nobody knows what Trump will do next, and oil markets are already pricing in disruption. Here's how geopolitical risk feeds into inflation — and what it could mean for your retirement plan.

5 Apr 2026 · 8 min read
What Is the FIRE Movement?
Planning

What Is the FIRE Movement?

Financial Independence, Retire Early — explained for UK readers. The maths, the lifestyle, the variations, and the bits the internet quietly leaves out.

4 Apr 2026 · 8 min read
How to Build a Budget That Actually Works
Planning

How to Build a Budget That Actually Works

Most budgets fail within three months. Not because people lack discipline — because the budgets were badly designed. A practical UK guide to building one you'll still be using this time next year.

3 Apr 2026 · 12 min read
A Guide to Investing in Gold: From Coins in Your Safe to ETFs in Your ISA
Investing

A Guide to Investing in Gold: From Coins in Your Safe to ETFs in Your ISA

Gold has been a store of value for thousands of years. Here's how people actually invest in it today — physical coins, bullion, storage services, ETFs, and more.

31 Mar 2026 · 12 min read
The 60/40 Portfolio and the Myth of Uncorrelated Returns
Investing

The 60/40 Portfolio and the Myth of Uncorrelated Returns

For decades, the 60/40 stock-bond split was the default portfolio. Then 2022 happened. Here's why the assumption that bonds always offset equities was never as reliable as people believed.

30 Mar 2026 · 10 min read
Why Your Default Pension Fund Is Probably Wrong for You
Retirement

Why Your Default Pension Fund Is Probably Wrong for You

Most people never choose where their pension is invested. They're placed into a default fund designed for everyone — which means it's designed for no one. Here's why that matters.

29 Mar 2026 · 14 min read
Why Retirement Modelling Matters More Than You Think
Planning

Why Retirement Modelling Matters More Than You Think

Most people guess their way to retirement. A proper model replaces hope with evidence — and gives you something far more valuable than a number: clarity.

28 Mar 2026 · 11 min read
"I'll Never Retire"
Planning

"I'll Never Retire"

She didn't mean she couldn't afford to. She meant she didn't want to. It's the best reason in the world — but it doesn't mean you don't need a plan.

27 Mar 2026 · 7 min read
What Is Cash Flow Modelling — and Why Does It Matter?
Planning

What Is Cash Flow Modelling — and Why Does It Matter?

Cash flow modelling is the foundation of serious retirement planning. It connects your money to your life, year by year, and shows you what's actually possible.

26 Mar 2026 · 8 min read
Ignore the Headlines: The Biggest Risk to Your Portfolio Is You
Investing

Ignore the Headlines: The Biggest Risk to Your Portfolio Is You

Markets crash, pundits panic, and headlines scream. But decades of data show the real threat to your returns isn't volatility — it's your own behaviour.

25 Mar 2026 · 9 min read
The Passive Investing Problem Nobody Talks About
Investing

The Passive Investing Problem Nobody Talks About

Index funds won. But as passive investing dominates global markets, it's creating risks that most investors haven't considered.

24 Mar 2026 · 9 min read
What Happens to Your Pension When You Die?
Retirement

What Happens to Your Pension When You Die?

Your pension doesn't just disappear — but what your family actually receives depends on the type of pension, your age at death, and rule changes coming in 2027. Here's what you need to know.

23 Mar 2026 · 8 min read
Why Compound Interest Calculators Are Dead
Planning

Why Compound Interest Calculators Are Dead

They gave us a starting point — but a single average return can't model reality. Here's why it's time to move on.

22 Mar 2026 · 6 min read
Should I Pay Off My Mortgage or Invest?
Planning

Should I Pay Off My Mortgage or Invest?

The spreadsheet says invest. Your gut says pay off the mortgage. This isn't a maths problem — it's a behavioural one. Here's how to think about it honestly.

19 Mar 2026 · 11 min read
The 4% Rule Doesn't Really Work in the UK
Planning

The 4% Rule Doesn't Really Work in the UK

It was designed for American retirees in the 1990s. Here's why blindly applying it to a UK retirement plan could leave you short — or overly cautious.

18 Mar 2026 · 7 min read
ISA vs Pension: Which Should You Prioritise?
Tax

ISA vs Pension: Which Should You Prioritise?

Both are tax-efficient, but the right split depends on your income, timeline, and retirement goals. Here's how to think about it.

15 Mar 2026 · 3 min read
HENRYs: High Earners, Not Rich Yet
Planning

HENRYs: High Earners, Not Rich Yet

You earn well above average but still feel behind. The HENRY trap is real — high income, high tax, high lifestyle costs, and not enough wealth to show for it. Here's how to break the cycle.

13 Mar 2026 · 8 min read
Tax-Free Lump Sum: Take It All at Once or Phase It?
Tax

Tax-Free Lump Sum: Take It All at Once or Phase It?

You can take 25% of your pension tax-free — but when and how you take it makes a bigger difference than most people realise.

12 Mar 2026 · 7 min read
The State of the State Pension
Retirement

The State of the State Pension

The state pension costs £124 billion a year and rising. Means testing, age increases, and changes to the triple lock are all on the table. Here's what's at stake.

11 Mar 2026 · 9 min read
UK State Pension in 2026: What You Need to Know
Retirement

UK State Pension in 2026: What You Need to Know

The full State Pension has risen again — here's what it means for your retirement income floor and how to check your entitlement.

10 Mar 2026 · 3 min read
Defined Benefit Pensions: The Holy Grail That's Disappearing
Retirement

Defined Benefit Pensions: The Holy Grail That's Disappearing

DB pensions guarantee you an income for life. They're the gold standard of retirement — and they're almost extinct outside the public sector. Here's how they work.

9 Mar 2026 · 8 min read
What Happens If Markets Fall in Your First 5 Years of Retirement?
Retirement

What Happens If Markets Fall in Your First 5 Years of Retirement?

The early years of retirement are when your portfolio is most vulnerable. A downturn at the wrong time can do permanent damage — even if markets recover.

8 Mar 2026 · 7 min read
What Is a SIPP and How Does It Work?
Retirement

What Is a SIPP and How Does It Work?

A SIPP gives you control over your pension investments. Here's what it is, how it differs from a workplace pension, and what the tax benefits actually mean.

7 Mar 2026 · 7 min read
The Real Cost of Investment Fees Over 30 Years
Planning

The Real Cost of Investment Fees Over 30 Years

A 1% fee sounds like nothing. Over a lifetime of investing, it can cost you tens of thousands of pounds. Here's the maths most platforms don't show you.

6 Mar 2026 · 6 min read
How Much Do I Need to Retire in the UK?
Retirement

How Much Do I Need to Retire in the UK?

It's the most searched retirement question in the country. The honest answer is: it depends. Here's how to work out your actual number.

5 Mar 2026 · 8 min read
Where Investing Began: From Ships and Spices to Your ISA
Investing

Where Investing Began: From Ships and Spices to Your ISA

Modern investing feels like apps and algorithms. But it started with merchants, ships, and the simple idea that you could own a share of someone else's risk.

4 Mar 2026 · 6 min read
AI: Bubble or Revolution? What the Dot-Com Crash Actually Teaches Us
Investing

AI: Bubble or Revolution? What the Dot-Com Crash Actually Teaches Us

Nvidia is up 800%. AI startups are raising billions. The parallels with 1999 are obvious — but the lessons from the dot-com era aren't the ones most people think.

3 Mar 2026 · 9 min read
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