How Much Should You Have Saved at 25, 30, 40, and 50? The Honest FIRE Benchmarks
I was 24 when I first Googled “how much should I have saved by 30.” The results were all over the place. Fidelity said one thing. Nerdwallet said another. Reddit said something entirely different. Most of them gave me a number without explaining where it came from or what it actually means for my life.
So here’s my attempt at the honest version — the benchmarks that actually connect to FIRE math, with the reasoning behind each one, and what to do if you don’t hit them.
First: Why Benchmarks Matter (And Why Most Are Wrong)
Most savings benchmarks are built on a single assumption: you’ll retire at 65. If that’s your goal, then Fidelity’s “1x salary by 30, 3x by 40” makes sense. It’s designed to build a pot big enough to sustain 20–30 years of spending on Social Security plus portfolio withdrawals.
FIRE targets are different because the retirement horizon is longer (40–60 years, not 20–30), you typically can’t count on Social Security (it’s a bonus, not a plan), and you need a larger multiple to sustain longer withdrawals at a lower withdrawal rate.
The FIRE-Honest Benchmarks
| Age | Traditional Target | FIRE Target | What This Enables |
|---|---|---|---|
| 25 | 0.5× annual income | 1× annual spending | Strong foundation; compound interest is starting to work |
| 28 | — | 2.5× annual spending | Approaching FIRE in 20 years if savings rate stays strong |
| 30 | 1× annual income | 3–4× annual spending | First real milestone; portfolio begins doing meaningful work |
| 35 | 2× annual income | 7× annual spending | Halfway to FIRE for a 45-year-old target date |
| 40 | 3× annual income | 13–14× annual spending | FIRE within 5 years at most spending levels |
| 45 | 4× annual income | 20× annual spending | Near FIRE threshold; drawdown planning begins |
| 50 | 6× annual income | 25× annual spending | Full FIRE target; traditional retirement also secure |
What’s Hiding in the Traditional Benchmarks
The traditional “x times salary” benchmarks use salary, not spending — because they’re designed to replace a salary in retirement. But your FIRE number isn’t about your salary. It’s about your spending. These are often very different.
If you earn $90,000 and spend $55,000, your FIRE number is $1,375,000 (25× spending). The traditional benchmark says “have $270,000 by 30” (3× salary). My FIRE benchmark says “have $165,000 by 30” (3× spending of $55k). For this person, the FIRE target is actually easier to hit — because their spending is well below their income.
This is why high earners who inflate lifestyle often have a harder time reaching FIRE than moderate earners with low spending. Income doesn’t determine your FIRE date. The gap between income and spending does.
What Compound Interest Actually Does at Each Milestone
Here’s the part nobody tells you clearly: the earlier milestones are mostly about contributions. The later milestones are mostly about growth. Understanding this changes how you should think about catching up if you’re behind.
- At 25: 90%+ of your growth will come from future contributions. Every dollar matters, but the magic of compounding hasn’t really started.
- At 35: Your portfolio may be growing at $20,000–$50,000/year on its own. Contributions still matter, but returns are doing real work.
- At 45: Your portfolio might grow $50,000–$150,000/year in an average market year. At this stage, investment allocation and sequence-of-return risk matter more than contribution rate.
If You’re Behind: The Honest Path Forward
Behind at 25? Doesn’t matter. Start. Catch up isn’t even a concept yet.
Behind at 30? Increase savings rate aggressively. 5 extra years of compounding await.
Behind at 35? Side income is your fastest lever. Add $10–20k/year in contributions and the math resets.
Behind at 40? Honest lifestyle audit. FIRE might mean a later date or different spending target — and that’s okay.
Behind at 45? Traditional retirement is probably fine. FIRE might be 55 instead of 50. Still worth optimizing.
The One Number That Actually Predicts Your Timeline
If I had to reduce all of this to a single metric, it’s savings rate expressed as a percentage of take-home pay. It predicts FIRE timeline more accurately than any age-based benchmark.
- 10% savings rate → ~43 more working years
- 20% savings rate → ~37 more working years
- 30% savings rate → ~28 more working years
- 40% savings rate → ~22 more working years
- 50% savings rate → ~17 more working years
- 60% savings rate → ~12 more working years
The benchmarks tell you if you’re on the right path. Savings rate tells you how fast you’re walking. Start with savings rate, track net worth as the scoreboard, and don’t let the gap between your number and a benchmark define whether you’re “doing well.”
Progress beats perfection every time.