Complete US Retirement Savings Guide

1. Why Start Saving for Retirement Now?

Time is the most powerful factor in retirement savings. Thanks to compound growth, starting early makes a dramatic difference:

            Example: If you invest $500/month starting at age 25 with 7% annual returns, you'll have about $1.2 million by age 65. Start at 35 and you'll have only $567,000 — half as much, despite only 10 fewer years.
        

Every dollar you invest today works for decades. Tax-advantaged accounts like 401(k) and IRA supercharge this growth by deferring or eliminating taxes.

2. Your 401(k) — The Foundation

A 401(k) is an employer-sponsored retirement savings plan. It's the cornerstone of retirement planning in the US because of generous contribution limits and employer matching.

How It Works

You contribute a percentage of each paycheck (pre-tax for Traditional, after-tax for Roth).
Your employer matches a portion of your contributions — this is free money.
Investments grow tax-deferred (Traditional) or tax-free (Roth) inside the account.
You withdraw in retirement (after age 59½). Early withdrawal triggers a 10% penalty.

2026 Contribution Limits

Category	2026 Limit	Notes
Employee contribution	$24,500	Under age 50
Catch-up (age 50+)	$8,000 extra	Total: $32,500
Super catch-up (ages 60-63)	$11,250 extra	Total: $35,750 (SECURE 2.0)
Employer + Employee total	$72,000	Includes employer match

Employer Match — Never Leave Free Money Behind

A typical employer match is 50% of your contributions up to 6% of salary. If you earn $80,000 and contribute 6% ($4,800), your employer adds $2,400. That's an instant 50% return on your money.

            Rule #1: Always contribute at least enough to get the full employer match. Anything less is leaving free money on the table.
        

Calculate Your 401(k) Growth →

3. Roth vs Traditional — Which Is Better?

This is the most common retirement planning question. The answer depends on your current vs future tax bracket:

Feature	Traditional 401(k)/IRA	Roth 401(k)/IRA
Tax on contributions	Pre-tax (reduces taxable income now)	After-tax (no upfront tax break)
Tax on growth	Tax-deferred	Tax-free
Tax on withdrawals	Taxed as ordinary income	Tax-free (if qualified)
RMDs at 73	Yes — Required Minimum Distributions	No (Roth 401k: yes, Roth IRA: no)
Best when	In a high bracket now, lower in retirement	In a lower bracket now, higher later

General Guidelines

Early career (22-35) — Roth is usually better. You're likely in a lower tax bracket now.
Peak earnings (36-55) — Traditional may save more. Higher income = bigger tax break.
Near retirement (55+) — Split strategy. Having both gives you tax flexibility in retirement.

            Pro tip: If unsure, do both! Many employers offer both Traditional and Roth 401(k). Splitting contributions hedges against future tax rate uncertainty.
        

4. IRA Options — Beyond Your 401(k)

Individual Retirement Accounts (IRAs) supplement your 401(k). You can contribute to an IRA even if you have a 401(k), subject to income limits.

2026 IRA Limits

Type	Annual Limit	Catch-up (50+)	Income Limit (Single)
Roth IRA	$7,500	$1,100 extra	$153,000 – $168,000 phase-out
Traditional IRA	$7,500	$1,100 extra	Deductibility limited if employer plan

Roth IRA — Tax-Free Growth Forever

The Roth IRA is one of the best retirement tools available. Contributions are after-tax, but all growth and withdrawals are completely tax-free. Unlike the Roth 401(k), there are no Required Minimum Distributions.

If your income exceeds the Roth IRA limit, you can use a Backdoor Roth strategy: contribute to a Traditional IRA, then convert to Roth.

Calculate Roth IRA Growth →

5. Social Security — What to Expect

Social Security provides a guaranteed income floor in retirement, but it's designed to replace only about 40% of pre-retirement income for average earners. Think of it as a supplement, not a complete plan.

Key Facts for 2026

Full Retirement Age (FRA): 66-67, depending on birth year
Earliest claiming age: 62 (reduced benefit ~30%)
Delayed credits: 8% increase per year past FRA, up to age 70
Earnings test: If claiming before FRA and still working, benefits reduced if you earn over $24,480/year
Maximum benefit at FRA (2026): $4,152/month

When to Claim

Claim at 62 — Lower monthly amount, but more years of payments. Best if you need income now or have health concerns.
Claim at FRA (66-67) — Full benefit. Good default choice.
Delay to 70 — Maximum benefit (up to 32% more than FRA). Best if you're healthy and have other income.

Estimate Your Social Security →

6. SECURE 2.0 Act — What Changed

The SECURE 2.0 Act (2022) introduced major retirement savings improvements that are now fully in effect:

Super catch-up contributions (ages 60-63): $11,250 additional, for a total of $35,750 in 2026.
RMD age raised to 73 (75 starting in 2033).
Employer match can be Roth: Employer contributions can now go into a Roth 401(k).
Emergency savings accounts: Employers can add emergency savings linked to retirement plans.
Student loan matching: Employers can match student loan payments as if they were 401(k) contributions.
Auto-enrollment: New plans must auto-enroll employees at 3-10% contribution.

7. 2026 Contribution Limits at a Glance

Account	Under 50	Age 50+	Ages 60-63
401(k) / 403(b)	$24,500	$32,500	$35,750
Traditional IRA	$7,500	$8,600	$8,600
Roth IRA	$7,500	$8,600	$8,600
HSA (Self-only)	$4,400	$5,400 (from age 55)	$5,400
HSA (Family)	$8,750	$9,750 (from age 55)	$9,750

Source: IRS Notice 2025-67 (retirement plan and IRA limits) and IRS Publication 969 (HSA limits) for 2026.

8. Retirement Strategy by Age

20s – Start Strong

Contribute at least enough to your 401(k) to get the full employer match.
Open a Roth IRA and max it out ($7,500/year).
Invest aggressively — 90%+ in diversified stock index funds. You have decades to recover from dips.
Build a 3-6 month emergency fund first, then invest.

30s – Accelerate

Aim to save 15-20% of gross income for retirement.
Increase 401(k) percentage every time you get a raise.
Consider an HSA as a stealth retirement account (triple tax advantage).
Start thinking about Roth vs Traditional split based on your bracket.

40s – Catch Up

Max out 401(k) if possible ($24,500).
Max out IRA ($7,500). Use Backdoor Roth if income is too high.
Review asset allocation — gradually shift towards 70/30 stocks/bonds.
Use our calculators to project your retirement number.

50s – Final Push

Take advantage of catch-up contributions ($32,500 in 401(k), $8,600 in IRA).
At ages 60-63, use the SECURE 2.0 super catch-up ($35,750 total).
Model different Social Security claiming ages — if your full retirement age is 67, delaying to 70 adds 24% to your benefit.
Consider paying off your mortgage before retirement.

Plan Your Retirement → Estimate Social Security →

9. Five Costly Retirement Mistakes

Not getting the full employer match — This is a guaranteed 50-100% return. Always get 100% of the match.
Cashing out when changing jobs — You'll pay taxes + 10% penalty. Always roll over to your new 401(k) or an IRA.
Being too conservative too early — In your 20s-30s, you can afford volatility. Don't keep retirement money in bonds or cash.
Ignoring fees — A 1% higher expense ratio can cost $100,000+ over 30 years. Choose low-cost index funds.
Not having a plan — Use our calculators to set a target number and track progress annually.

401(k) Calculator → Roth IRA Calculator →