Starting to save for retirement just 13 years earlier can result in more than $2.4 million in additional wealth at retirement — even with the exact same salary and contribution rate. This side-by-side comparison shows exactly what the delay costs and why time is the most powerful variable in retirement planning.
If you've ever told yourself "I'll start saving for retirement when I'm more settled" or "I have plenty of time," you're not alone. It's one of the most common financial decisions people make — and one of the most costly. The question isn't really about discipline or income. It's about time. Specifically, how much compounding growth do you give up when you delay getting started?
To answer that question concretely, we ran two retirement projections using the Career Retirement Calculator. Both scenarios use the exact same salary, the same contribution rate, and the same employer match. The only difference is the starting age: one person begins saving at 22, the other waits until 35. The results are striking.
Both individuals earn $70,000 per year, contribute 10% of their salary, and receive a 4% employer match. Both plan to retire at 65 and assume a 7.0% annual investment return with a 4.0% withdrawal rate in retirement. The only variable that changes is when they start. The early saver begins at age 22. The late saver begins at age 35 — a 13-year gap.
Here's the main scenario — the early saver who starts at 22. You can import it directly into the calculator to follow along or adjust the assumptions for your own situation.
Career Stages
Early Saver — Starts at Age 22, Retires at 65
The early saver reaches retirement at 65 with a projected balance of $3.75 million — or $1.30 million in today's inflation-adjusted dollars. Their monthly withdrawal in retirement comes to $12,493, and their portfolio continues to grow even through retirement, finishing at $7.07 million by age 85. The portfolio never depletes.
Over their working life, the early saver contributes a total of $838,000 — including $239,000 in employer contributions. But total investment growth reaches $10.06 million. That means the vast majority of the ending balance isn't money they put in — it's growth generated by letting those contributions compound over decades.
The milestone timeline tells the story clearly. The early saver hits $100,000 by age 29, $500,000 by age 41, $1 million by age 48, and $2 million by age 57. Each milestone comes while they still have years of contributions and compounding ahead of them.
The early saver contributes $838K over their career but ends up with $3.75M at retirement — and by their final balance they have seen nearly $10.06M in total investment growth. That's the compounding effect in action.
The late saver, starting at 35 with otherwise identical inputs, reaches retirement with a balance of $1.31 million — or $455,000 in today's dollars. Their monthly withdrawal comes to $4,383, and their portfolio grows to $2.48 million by age 85. The portfolio also doesn't deplete, which is a positive outcome — but the difference in retirement income is dramatic.
The milestone timeline shifts significantly. The late saver doesn't hit $100,000 until age 42, $500,000 until age 54, and $1 million until age 61 — just four years before retirement. The $2 million milestone doesn't arrive until age 78, well into retirement.
That 13-year delay translates into a $2,433,013 difference in retirement balance compared to the early saver. And it shows up directly in monthly income: the early saver withdraws $12,493 per month while the late saver withdraws $4,383 — a gap of over $8,100 every single month in retirement.
The compounding difference isn't just about 13 extra years of contributions. It's about what those early years do to the overall trajectory. Money invested at 22 has more than four decades to grow before retirement. Contributions made in those early years — even small ones — multiply many times over. By the time the late saver starts at 35, the early saver already has a growing base that is generating returns larger than annual contributions alone.
Want to see the late saver's projection in full detail? Here's the comparison plan you can import into the calculator to explore what starting at 35 looks like — and how changing contribution rates or return assumptions might close the gap.
Career Stages
Late Saver — Starts at Age 35, Retires at 65
These projections are educational examples based on a specific set of assumptions — $70,000 salary, 10% contribution, 4% employer match, 7% returns. Your own situation will look different based on your income, contribution rate, employer benefits, and investment choices. The numbers aren't predictions; they're illustrations of how compounding behaves over time.
But the underlying principle holds across virtually every scenario: time in the market is one of the most powerful variables available to you. If you're already past 35, that doesn't mean the opportunity is gone — it means your contribution rate and strategy become even more important. The Career Retirement Calculator lets you model different paths so you can see what's realistic given your actual starting point.
The best time to start saving for retirement was the day you started working. The second best time is today. Adjust the assumptions in the calculator to find a plan that works for where you are right now.
Whether you're 22, 35, or somewhere in between, running your own numbers is the first step toward understanding what retirement could realistically look like — and what levers you have to improve it.