Age based recommendations

401k vs Roth IRA by age

Specific recommendations for five age brackets with salary, marginal bracket, projected outcome, and the right answer for each phase of a working career.

Retirement Runway
Key ages from career start to RMDs
Tax Year 2026
Career start
22
50
Catch up unlocks
Rule of 55 (401k)
55
59.5
59.5 penalty free
Super catch up (60 to 63)
60
65
Common retire age
401k RMDs begin
73
Five phases

What to do at each age bracket

Age 22 to 30

Match plus Roth IRA

Typical salary $45,000 to $65,000 typical
Marginal bracket 12 to 22 percent

Capture the match. Then max the Roth IRA. The decades of tax free compounding ahead are the most valuable asset class in retirement planning.

Projection

$7,500 per year in a Roth IRA from 25 to 65 at 7 percent grows to roughly $1.6 million, tax free.

Age 30 to 40

Match, Roth IRA, then 401k

Typical salary $75,000 to $120,000 typical
Marginal bracket 22 to 24 percent

Match first, then Roth IRA. Add 401k contributions toward the employee cap if budget allows. Watch the Roth IRA phaseout if income is climbing fast.

Projection

Maxing both ($24,500 plus $7,500) over the decade adds roughly $480,000 by retirement at a 7 percent return.

Age 40 to 50

Match, backdoor Roth, max 401k

Typical salary $100,000 to $200,000 plus typical
Marginal bracket 22 to 32 percent

Often above the Roth IRA phaseout. Use the backdoor Roth route. Pre tax 401k starts to shine because retirement bracket may be lower than peak career bracket.

Projection

Pre tax 401k contributions at the 32 percent bracket save roughly $7,840 per year in current taxes.

Age 50 to 60

Maximise everything, including catch ups

Typical salary Often peak earning years
Marginal bracket 22 to 32 percent

Catch ups unlock at 50: 401k cap rises to $32,500, Roth IRA cap rises to $8,600. Front load aggressively. Plan for the SECURE 2.0 mandatory Roth catch up if wages exceed $150,000.

Projection

Catch up dollars compounded for 15 years at 7 percent add roughly $221,000 of additional balance.

Age 60 to 65

Use the super catch up window

Typical salary Pre retirement
Marginal bracket Likely peak or just past peak

Ages 60 to 63 have a SECURE 2.0 super catch up that raises the 401k cap to $35,750. Take advantage. Begin Roth conversions in low income years before Social Security and RMDs.

Projection

Super catch up of $35,750 for four years plus a maxed Roth IRA totals roughly $174,400 of additional contributions.

Summary

Quick reference by age

AgePriority401k capRoth IRA capWatch out for
22 to 30Match, then Roth IRA$24,500$7,500Building emergency fund first
30 to 40Match, Roth IRA, max 401k$24,500$7,500Roth IRA phaseout if income climbs
40 to 50Match, backdoor Roth, max 401k$24,500$7,500 (backdoor)Pro rata rule on conversions
50 to 60All catch ups, balance pre tax and Roth$32,500$8,600SECURE 2.0 mandatory Roth catch up at $150k+
60 to 63Super catch up, Roth conversions$35,750$8,600Healthcare bridge to Medicare at 65
Frequently asked

By age questions

Should a 25 year old do 401k or Roth IRA?+

Almost always both. Capture the full employer match in the 401k, then fully fund a Roth IRA. At a 12 to 22 percent marginal bracket, post tax contributions cost very little. Decades of tax free compounding inside the Roth typically produce the largest after tax retirement balance.

Is it too late to start a Roth IRA at 50?+

Not at all. The catch up provisions (a $1,100 Roth IRA catch up and an $8,000 401k catch up at 50 plus) raise the contribution capacity. With 15 years to retirement and a 7 percent return, $8,600 per year in a Roth IRA grows to roughly $216,000 of tax free retirement income.

What changes at age 60?+

Three things. The SECURE 2.0 super catch up raises the 401k cap to $35,750 for ages 60 to 63 only. RMDs from the 401k still wait until 73. Healthcare planning becomes more involved if you retire before Medicare at 65.

When should I stop contributing to a Roth IRA?+

There is no age cap on Roth IRA contributions, as long as you have earned income. Many people contribute through their working years and then continue smaller contributions during a part time retirement phase. Once earned income stops, contributions stop.