Lesson 1 Of 10 · 4 Min
Why Saving Alone Isn’t Enough
See how rising prices shrink your cash, and why your money needs to grow.
Guess First
S$100 In Your Drawer. In 20 Years It Buys…
Prices rise about 2% a year.
About S$67. The note still says 100, but it buys about a third less.
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Watch Your S$100 Shrink
Singapore’s prices rose 2.4% in 2024 and 0.9% in 2025, and about 2% a year on average over 20 years. MAS expects 1.5% to 2.5% for 2026.
Play With It
Is Your Bank Account Winning?
Your real return is roughly the interest you earn minus inflation. Keep emergency cash safe. Give money you will not need for years a chance to grow.
Play With It
Make Time Work For You
Compound growth: your returns earn returns too. Real returns are not steady and are never promised, but time is your biggest lever.
Sort It
Active Or Passive Income?
Active income needs your time and stops when you stop. Passive income keeps coming with little work.
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Key Idea
Lesson 1 Key Idea
Cash that earns less than inflation loses buying power. Keep enough cash for safety, and give long-term money a chance to grow.
Badge: Inflation Spotter Earned when you finish this lesson.
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Now Use Your Own Numbers
Your monthly amount and growth rate carry over. The result is in future dollars, which will buy less than today’s.
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Try The Compound Growth Calculator →Read This Lesson As Text
Prices Go Up Every Year
Saving is a great first habit. But cash that sits still slowly buys less.
This is inflation: prices rising over time. Chicken rice, bus fares and school fees all cost more than they did ten years ago.
Singapore’s prices rose 2.4% in 2024 and 0.9% in 2025. Over the last 20 years they rose about 2% a year on average. MAS expects about 1.5% to 2.5% for 2026.
What That Does To Your Savings
Your bank balance does not drop. What it can buy does.
If prices rise 2% a year, S$100 of cash buys only about S$67 of today’s shopping after 20 years. At 3% a year, it buys about S$55.
So a pile of cash can look bigger each year and still be worth less.
Check Your Rate Against Inflation
The interest you earn minus inflation is your real return. If your savings earn 0.5% and prices rise 2%, your real return is about minus 1.5% a year.
Keep enough cash for emergencies. That money needs to be safe, not fast-growing. Money you will not need for many years is different. It needs a chance to grow faster than prices.
Compound Growth: Returns On Your Returns
When your money earns a return, and that return earns a return too, growth speeds up over time. This is compound growth.
For example, S$300 a month for 30 years is S$108,000 put in. At a steady 4% a year, it would grow to about S$208,000. Real returns are not steady and are never promised, but time is the biggest lever you have.
Two Kinds Of Income
Active income is money you earn by working, such as your salary. It stops when you stop.
Passive income is money that keeps coming with little work, such as interest, dividends or rent. Building passive income is how people slowly depend less on a salary. The next lesson shows you how to measure where you are now.
Singapore Example · Fictional People
Aisha’s Savings Account
Aisha is 25. She puts S$500 a month into a savings account paying 0.05% a year, and does this for 10 years.
She ends up with about S$60,150. If prices rise 2% a year over that time, that money buys only what about S$49,300 buys today.
Saving was the right start. Next, she keeps six months of spending as cash and looks at ways to grow the rest.
Sources For This Lesson
- Singapore Department of Statistics (SingStat): Percent change in CPI, annual (Table M213811) and CPI index, annual (Table M213801) (checked 30 Sep 2026 (data updated 23 Jan 2026))
- Monetary Authority of Singapore (MAS): Monetary Policy Statement, 27 Jul 2026 (checked 30 Sep 2026)
- MTI and MAS: Consumer Price Developments in August 2026 (23 Sep 2026) (checked 30 Sep 2026)
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