TOOL · COST OF WAITING

The real price of postponing your first investment

See how many months of compounding you lose by waiting. The math is brutal: a 12-month delay can cost more than a year of contributions over a 25-year horizon.

Try it yourself

Set your monthly contribution, expected return, delay in months and total horizon. We show the gap between starting today and starting later.

Why delay costs so much

You lose tail-end compounding

The last few years of a 25-year run produce the biggest gains. A delay cuts them off the back — not the small early years.

Missed contributions never catch up

Money invested in month 1 has decades to compound. Money invested in month 13 has 12 fewer compounding cycles — forever.

Small delay, large cost

For typical long horizons (20+ years), each month of delay costs roughly 0.7%–1% of your final pot. A year of waiting can equal 10% of the outcome.

Frequently Asked Questions

How is the cost of delay calculated?

The calculator compares two scenarios: investing immediately versus waiting N months. The difference in final portfolio value — accounting for compound growth on missed contributions — is your cost of delay.

What return rate should I use?

The historical average annual return of the S&P 500 is about 10% nominal (7% after inflation). For a conservative estimate, use 7-8%. For a balanced view, 10% is reasonable.

Does the calculator account for inflation?

No, all figures are in nominal terms. To see real (inflation-adjusted) results, subtract 2-3% from your expected return rate before entering it.

Is it always better to invest immediately?

Statistically, yes — time in the market beats timing the market. However, you should first build an emergency fund (3-6 months of expenses) and pay off high-interest debt before investing.

Can I use this for lump-sum investments too?

This calculator focuses on regular monthly contributions. For lump-sum investing, the principle is the same — each month of delay costs you the expected return on the full amount.

Start with a broker, not a spreadsheet

Our matching wizard picks 1–3 brokers fit for your country and deposit in under a minute. No paid placements, no advice.

Find my broker →

Affiliate disclosure

We may earn a commission if you open an account through our links. It does not change broker conditions and does not affect our ranking. Methodology →

Risk warning

Financial instruments carry the risk of capital loss. 74–89% of retail investors lose money trading CFDs. Assess whether you can afford this risk.

TOOL · COST OF WAITING

The real price of postponing your first investment

See how many months of compounding you lose by waiting. The math is brutal: a 12-month delay can cost more than a year of contributions over a 25-year horizon.

Try it yourself

Set your monthly contribution, expected return, delay in months and total horizon. We show the gap between starting today and starting later.

Your scenario

Monthly contribution ($)$300/mo

Delay (months)6 months

Expected return (%/year)8%/year

Investment horizon (years)20 years

The math

Every month of delay = $1,444 of future portfolio value at these inputs.

Cost of waiting · 6 months

$8,665

That's $1,444 for every month you delay

If you start today$176,706240 months compounding

If you start in 6 months$168,041234 months compounding

Two timelines, one decision

Solid: start today · Dashed: start in 6 months

Today

Later

This calculation is for illustrative purposes only. Past returns do not guarantee future results.

Why delay costs so much

You lose tail-end compounding

The last few years of a 25-year run produce the biggest gains. A delay cuts them off the back — not the small early years.

Missed contributions never catch up

Money invested in month 1 has decades to compound. Money invested in month 13 has 12 fewer compounding cycles — forever.

Small delay, large cost

For typical long horizons (20+ years), each month of delay costs roughly 0.7%–1% of your final pot. A year of waiting can equal 10% of the outcome.

Frequently Asked Questions

How is the cost of delay calculated?

What return rate should I use?

The historical average annual return of the S&P 500 is about 10% nominal (7% after inflation). For a conservative estimate, use 7-8%. For a balanced view, 10% is reasonable.

Does the calculator account for inflation?

No, all figures are in nominal terms. To see real (inflation-adjusted) results, subtract 2-3% from your expected return rate before entering it.

Is it always better to invest immediately?

Statistically, yes — time in the market beats timing the market. However, you should first build an emergency fund (3-6 months of expenses) and pay off high-interest debt before investing.

Can I use this for lump-sum investments too?

This calculator focuses on regular monthly contributions. For lump-sum investing, the principle is the same — each month of delay costs you the expected return on the full amount.

Start with a broker, not a spreadsheet

Our matching wizard picks 1–3 brokers fit for your country and deposit in under a minute. No paid placements, no advice.

Find my broker →

Affiliate disclosure

We may earn a commission if you open an account through our links. It does not change broker conditions and does not affect our ranking. Methodology →

Risk warning

Financial instruments carry the risk of capital loss. 74–89% of retail investors lose money trading CFDs. Assess whether you can afford this risk.

Your scenario

Monthly contribution ($)$300/mo

Delay (months)6 months

Expected return (%/year)8%/year

Investment horizon (years)20 years

The math

Every month of delay = $1,444 of future portfolio value at these inputs.

Cost of waiting · 6 months

$8,665

That's $1,444 for every month you delay

If you start today$176,706240 months compounding

If you start in 6 months$168,041234 months compounding

Two timelines, one decision

Solid: start today · Dashed: start in 6 months

Today

Later

This calculation is for illustrative purposes only. Past returns do not guarantee future results.