The true cost of waiting: Every year without investing costs you thousands

August 11, 2025 4 min read

arvy's Teaser: Waiting costs nothing — that's how it feels. But the maths says something different. Every year you don't invest costs you thousands, tens of thousands, ultimately hundreds of thousands. Not because you lose money, but because you miss the most powerful mechanism in finance: compound interest. Here are the numbers.


The Invisible Bill

Imagine you have CHF 100 on the table. Every year, someone adds 6%. After one year: CHF 106. After two: CHF 112.36. Sounds boring.

But after 30 years? CHF 574. CHF 100 became nearly CHF 600 — without you ever adding a single franc. That's compound interest: you earn returns on your returns, which in turn earn returns.

And here's the crucial point: the strongest effect unfolds at the end. In the first 10 years, your CHF 100 grows to CHF 179. In the last 10 years (year 20 to 30), it grows from CHF 321 to CHF 574 — by CHF 253. The final decade delivers more than the first two combined.

That's why every year of delay isn't a linear loss — it's an exponential one.


What One Year of Waiting Actually Costs

Here are the concrete numbers. Assumption: you invest CHF 500 per month at an average return of 6% per year (historical average of broadly diversified equity portfolios):

Your Age When Starting Years to 65 Wealth at 65 Cost of 1 Year Waiting
25 40 years CHF 995,000 CHF 56,000
30 35 years CHF 714,000 CHF 40,000
35 30 years CHF 503,000 CHF 28,000
40 25 years CHF 347,000 CHF 19,000
45 20 years CHF 232,000 CHF 12,000

Read the red column again. A single year of waiting costs you CHF 12,000 to CHF 56,000. Not because you lose money — but because compound interest has one less year to work its magic.

"The best time to plant a tree was 20 years ago. The second-best time is now."


What 5 Years of Waiting Costs

Many people don't wait one year — they wait five. "Build my career first," "pay off debts first," "save enough first." The costs are dramatic:

Starting at 25 vs. Starting at 30 (CHF 500/month, 6%)

Start at 25: CHF 995,000 at 65
Start at 30: CHF 714,000 at 65

5-year difference = CHF 281,000 less

The 25-year-old only deposited CHF 30,000 more (5 years × CHF 6,000). But the compound effect on those early years makes a CHF 251,000 difference. That's CHF 50,000 per year of waiting — just because compound interest had 5 more years to work.


The Silent Thief: Inflation

Even if you think "my money is safe in a savings account" — it's not safe. It's losing value every day.

CHF 100,000 in a savings account Purchasing power after X years
After 5 years (1.5% inflation) CHF 92,800 purchasing power
After 10 years CHF 86,100 purchasing power
After 20 years CHF 74,200 purchasing power
After 30 years CHF 63,900 purchasing power

Your CHF 100,000 becomes CHF 63,900 — without you ever spending a single franc. The savings account feels safe, but it's a slow, invisible loss of value. And the savings rate (currently 0.3–0.8%) doesn't even offset half the inflation.


Two Friends, One Decision

Lena and Marco are both 28, both earn CHF 90,000, and both have CHF 500 per month to spare.

Lena starts investing immediately. CHF 500/month, broadly diversified, consistently.

Marco waits. "I'll start when I have CHF 50,000 in my savings account." That takes 8 years. At 36, he starts — also CHF 500/month.

The result at 65 (6% return)

Lena (started at 28): CHF 762,000
Marco (started at 36): CHF 419,000 + CHF 50,000 savings = CHF 469,000

Difference: CHF 293,000

Marco even deposited more (8 years × CHF 6,000 = CHF 48,000 in savings). But Lena's 8-year head start in investing is worth CHF 293,000. That's the price of waiting.


"But What If the Market Crashes Right Now?"

Fair point: yes, it's possible you start today and the market drops 20% tomorrow. That's possible. And it feels terrible.

But here's the perspective:

Even if you'd started on the absolute worst day of the last 50 years — at the peak right before the 2008 crash — you'd have been in profit after 5 years. Massively in profit after 10. After 15 years, your money would have more than doubled.

The short-term pain is real. But it's temporary. The cost of waiting is permanent.

The smart solution: drip-feed instead of all at once

If you're afraid of bad timing, invest a fixed monthly amount (cost averaging). Then you sometimes buy expensive, sometimes cheap — and on average, well. Over 5+ years, the entry point barely matters.


The Simple Truth

There are only three variables that determine how much wealth you build:

1. How much you invest — you can control that.
2. What return you achieve — you can partly influence that (by choosing quality companies).
3. How long your money works — you determine that with a single decision: when you start.

Variable 3 is the most powerful. And it's the only one you can't change tomorrow. Every day that passes is one less day of compound interest. Irrevocable.

"You'll never see the cost of waiting on a bank statement. But it's the highest cost of your life."


Every day counts. Today more than tomorrow.

Start with CHF 1. In 10 minutes you're invested. In 10 years you'll be glad you started today.

Start now — free app

Disclaimer: This article is for general information purposes and does not constitute investment advice. Calculations are based on an assumed return of 6% p.a. (historical average of broadly diversified equity portfolios) and do not account for fees, taxes, or inflation on returns. Actual results may differ. Past performance is not an indicator of future results. arvy is a FINMA-regulated asset manager.