Most people know they should be saving for retirement. Far fewer have any concrete sense of whether they’re saving enough, how much they’ll actually need, or whether their current trajectory will get them there. The vague benchmarks that circulate — “save 10% of your income,” “you need $1 million” — are either too general to be useful or too simplified to account for the variation in individuals’ actual situations. This guide gives you the tools to calculate your own specific retirement target, assess whether you’re on track, and identify the specific changes that will make the largest difference if you’re not.
The 25x Rule: Starting Point for Your Target
The most widely used retirement savings target comes from the 4% rule: withdraw 4% of your portfolio in your first year of retirement, then adjust for inflation annually. Historical analysis suggests this rate has sustained portfolios through 30-year retirements including periods beginning before major market downturns. Working backward from the 4% withdrawal rate, you need 25 times your expected annual retirement spending as a total portfolio at retirement. If you expect to spend $60,000 per year in retirement, your target is $1.5 million. If you expect to spend $80,000, the target is $2 million.
Two important adjustments to this baseline. First, Social Security reduces the portfolio required. If you’ll receive $20,000 per year from Social Security, you only need your portfolio to cover the remaining $40,000 to $60,000 of annual spending — requiring $1 million to $1.5 million rather than the full $1.5 million to $2 million. Estimate your Social Security benefit at ssa.gov using your earnings history. Second, if you plan to retire significantly before 65 and draw the portfolio for 40 or 50 years rather than 30, the 4% rule’s historical safety margin shrinks, and many planners use 3% to 3.5% for longer retirements — implying a 29x to 33x spending target.
The Age-Based Benchmarks
Fidelity’s widely cited benchmarks provide rough checkpoints: 1x your salary saved by 30, 3x by 40, 6x by 50, 8x by 60, 10x by retirement at 67. These assume you’ll replace about 45% of your pre-retirement income from savings (with Social Security and other sources covering the rest), which works for people with typical spending patterns and a conventional retirement timeline. They’re useful as quick gauges — if you’re 40 with 1x your salary saved instead of 3x, you’re significantly behind and the gap is worth addressing urgently. If you’re at or ahead of the benchmark, you’re roughly on track.
The benchmarks have real limitations. They don’t account for high-spending or low-spending retirement lifestyles, they assume Social Security covers a meaningful portion of retirement income, and they’re calibrated to a 67-year-old retirement age. For anyone planning to retire earlier, or expecting a significantly different retirement lifestyle than a typical middle-income household, the personalised calculation using the 25x rule against your own expected spending is more meaningful than the age-based benchmarks.
How Much to Contribute: The 15% Guideline
The most commonly recommended savings rate for retirement is 15% of gross income, including any employer match. At a consistent 15% savings rate starting in your mid-20s, most people reach their retirement target by their mid-60s assuming historical average investment returns. The key phrase is “starting in your mid-20s” — people who start later need higher savings rates to compensate for lost compounding time. Starting at 35 instead of 25 requires roughly 18% to 20% to reach the same retirement readiness by 65. Starting at 45 requires 25% or more.
If 15% isn’t currently achievable, the correct response is not to save nothing — it’s to save as much as you can and increase it over time. A 5% contribution that captures a 5% employer match is a 10% effective savings rate. Increasing contributions by 1% each year when you receive a raise gradually approaches the target without requiring a dramatic immediate lifestyle change. Many 401(k) plans offer automatic escalation features that implement exactly this — setting a 1% annual increase that continues until it reaches a target percentage.
If You’re Behind: The Options
If your current savings trajectory falls short of your retirement target, you have four levers: save more, earn more, spend less in retirement, or retire later. Each has a different cost and a different impact. Saving more is the most straightforward but constrained by current income and expenses. Earning more — through career advancement, additional income sources, or higher-value skills — is the highest-leverage lever for people earlier in their career. Spending less in retirement reduces the target portfolio size and may be achievable through geographic relocation, downsizing, or lifestyle adjustment without meaningful loss of wellbeing. Retiring later is mathematically powerful — each additional year of work both adds savings and shortens the drawdown period, significantly improving the probability of a successful retirement outcome.
For people significantly behind, a combination of modest increases across multiple levers often produces a better outcome than trying to dramatically change a single variable. Increasing the savings rate from 8% to 14%, targeting a slightly lower retirement spending level, and working two or three years longer than originally planned can collectively close a gap that seemed overwhelming when viewed as a single problem to solve.
Where to Hold Your Retirement Savings
The account type matters almost as much as the amount. Prioritise tax-advantaged accounts in this order: capture the full 401(k) employer match first — it’s an immediate 50% to 100% return on matched contributions. Then max a Roth IRA ($7,000 in 2025) if your income qualifies — tax-free growth and withdrawals make this exceptionally valuable over decades. Then return to max the 401(k) ($23,500 in 2025). Only after tax-advantaged space is exhausted should additional retirement savings go into a taxable brokerage account. The tax sheltering of retirement savings in these accounts — avoiding annual taxes on dividends and capital gains — adds roughly 0.5% to 1% of additional effective return per year over a taxable account holding the same assets, which compounds substantially over a 30-year horizon.
Inside these accounts, broad low-cost index funds or target-date funds are the standard recommendation for most retirement savers. The specific fund matters far less than the savings rate — getting the amount right and the account type right produces 80% of the outcome. The fund selection optimisation is worth doing once you have the fundamentals in place, not before.
A Simple Retirement Readiness Check
Here’s the fastest way to assess where you stand: take your current retirement savings balance and divide it by your current annual salary. If you’re 30 and the result is less than 1, you’re behind the standard benchmark. If you’re 40 and it’s less than 3, you’re behind. If you’re 50 and it’s less than 6, you’re behind. These benchmarks are rough — they don’t account for your specific expected retirement spending, Social Security benefits, or retirement timeline — but they give an immediate directional read that tells you whether a more detailed calculation is urgent. Most people who discover they’re significantly behind the benchmark benefit from running the personalised 25x calculation to understand the specific gap in dollar terms, then working backward to the monthly savings rate required to close it. The math is not complicated, but seeing it in concrete terms is often the catalyst that converts vague concern about retirement savings into specific action.
Retirement savings is one of the few financial decisions where time genuinely cannot be replaced with money — years of compounding lost to late starts require proportionally larger contributions to compensate, and at some point the required contribution rate becomes unrealistic. Checking where you stand against the benchmarks now, and addressing any gap with specific contribution increases while time still provides meaningful leverage, is one of the highest-return financial actions available regardless of your current age.
The single most valuable retirement planning action for most people at most ages is simply increasing their contribution rate by 1% to 2% right now. Not planning to. Not thinking about it. Logging into the 401(k) portal today and changing the contribution percentage. That single action, compounded over the remaining working years, moves the retirement readiness number more reliably than any investment strategy refinement or product selection optimisation.
Retirement planning is not a one-time exercise but a periodic recalculation — worth revisiting whenever your income changes significantly, when you receive an inheritance or windfall, or simply as an annual habit alongside tax filing. The calculation itself takes less than an hour. The actions it produces — adjusting a contribution rate, opening a Roth IRA, rebalancing an allocation — take another hour. That two-hour annual investment in clarity is among the most financially productive things most people can do each year.
Start now, review annually, and adjust when life changes. That is the complete retirement planning process for most people.
