Retirement planning is the longest financial project most people will ever work on — typically 30–40 years of accumulation followed by 20–30 years of drawdown. The good news is that the fundamentals are simple: spend less than you earn, invest the difference consistently, use tax-advantaged accounts in the right order, and give it time. The bad news is that "simple" does not mean "easy," and a few bad decisions early can cost years of work.
What changed in 2026
- Contribution limits increased again. IRS adjustments pushed 401(k) limits to roughly $23,500–$24,000 for standard and higher for catch-up contributions (50+). IRA limits continue to adjust modestly. Confirm exact limits at IRS.gov.
- Roth options expanded. Most 401(k) plans now offer a Roth option; more employers also offer Roth SIMPLE and SIMPLE IRA conversions. See Roth vs traditional IRA in 2026.
- Target-date funds improved. Costs dropped further and glide paths became more customizable in major plan lineups.
- Social Security projections updated. Current actuarial estimates suggest the program can pay full benefits into the 2030s, with potential reductions after if Congress does not act. Factor this into your planning conservatively.
The contribution order that actually matters
| Priority |
Step |
Why |
| 1 |
Contribute to 401(k) / 403(b) up to employer match |
Free money — guaranteed return |
| 2 |
Max HSA (if eligible) |
Triple tax advantage: deductible, grows tax-free, withdrawals tax-free for medical |
| 3 |
Max IRA (Roth or traditional) |
~$7,000–$8,000/year of tax-advantaged space |
| 4 |
Return to 401(k) up to annual limit |
Larger bucket than IRA |
| 5 |
Taxable brokerage |
No limit, but no special tax treatment |
This order applies to most employees. Self-employed people have access to Solo 401(k) and SEP IRA with much higher limits — worth exploring separately.
How much you actually need: the 25x rule
Multiply your expected annual spending in retirement by 25. That is a rough target nest egg at a 4% withdrawal rate.
Examples:
- Annual retirement spending of $40,000/year → target ~$1,000,000
- Annual retirement spending of $60,000/year → target ~$1,500,000
- Annual retirement spending of $80,000/year → target ~$2,000,000
Caveats: The 4% rule is a guideline, not a guarantee. A 30+ year retirement with variable returns requires some flexibility. Social Security income reduces how much your portfolio must provide.
The allocation shift over time
| Phase |
Rough equity / bond split |
Logic |
| 20s–30s |
90/10 or 100% equities |
Maximum time to recover from downturns |
| 40s |
80/20 |
Start adding ballast as timeline shortens |
| 50s |
70/30 |
Reduce sequence-of-returns risk as retirement nears |
| Early retirement |
60/40 to 50/50 |
Balance growth for longevity vs. drawdown stability |
| Deep retirement |
40/60 or per need |
Capital preservation with inflation buffer |
Target-date funds automatically shift this allocation based on your expected retirement year — a reasonable autopilot for most people.
How to start (at any age)
In your 20s: Start early, even small amounts. Time is your biggest asset. Invest heavily in equities. Capture every employer match.
In your 30s: Increase contributions with every raise. Max your IRA. Review beneficiaries. If you have high-interest debt, pay it down alongside saving (but do not skip the 401(k) match).
In your 40s: Run a real retirement number calculation. Consider catching up if contributions have been low. Reevaluate risk allocation. Life insurance needs often peak here.
In your 50s: Use catch-up contributions (IRS allows higher limits for 50+). Map out Social Security claiming strategy. Stress-test your plan against sequence-of-returns risk.
Within 5–10 years of retirement: Build a 1–2 year cash or near-cash buffer. Shift allocation gradually. Consider when to claim Social Security — waiting until 70 increases monthly benefits significantly.
Common mistakes
Not contributing enough to get the full employer match. Every unmatched dollar is a 50–100% return you declined. Prioritize this above everything else.
Withdrawing from retirement accounts early. Early withdrawals from traditional accounts before 59½ trigger income tax plus a 10% penalty in most cases. The long-term compounding cost is even higher.
Being too conservative too early. A 35-year-old in a money market fund inside their 401(k) is guaranteeing below-inflation returns on money that has 30 years to compound.
Ignoring inflation. $60,000/year in today's dollars may require significantly more in 20 years. Build in a real-return assumption, not just nominal.
Failing to update beneficiaries. Your retirement account beneficiary designation overrides your will. Check it after every major life event.
What to skip
- Actively managed funds with high expense ratios — most underperform their index benchmarks after fees over 20+ year periods.
- Annuities as a primary retirement vehicle — they have a role in specific situations, but the complexity and fees make them unsuitable as a default.
- Trying to retire on Social Security alone — it was designed as a supplement, not a full income replacement.
FAQ
When is it too late to start?
It is never too late, but the math does change. Starting at 45 instead of 25 means you need to save more aggressively to reach the same target. Use a retirement calculator to see what consistent contributions from any starting age produce.
Should I use Roth or traditional contributions?
Generally: Roth if you expect to be in a higher tax bracket in retirement than now; traditional if you expect to be in a lower bracket. In your peak earning years, traditional is often better. Early career, Roth typically wins. See Roth vs traditional IRA in 2026.
What if I change jobs?
Roll over your old 401(k) to your new employer plan or to an IRA. Avoid taking the cash — taxes and penalties compound into a major setback.
How do I account for healthcare costs in retirement?
Healthcare is consistently one of the largest retirement expenses. An HSA funded during working years is the most efficient vehicle. Build healthcare costs explicitly into your retirement spending estimate.
Where to go next
See Best retirement accounts in 2026, Roth vs traditional IRA in 2026, and How to max out your 401k in 2026.