SECURE 2.0 Roth Catch-Up 2027 Mandatory Calculator
Under SECURE 2.0 Section 603, age 50+ catch-up contributions must be made as Roth (not pretax) if your prior-year FICA wages exceeded $145,000. This calculator shows your 2027 catch-up amount, the upfront tax hit of mandatory Roth, and the long-term tax-free growth advantage.
What Is the SECURE 2.0 Mandatory Roth Catch-Up Rule?
SECURE 2.0 Act Section 603 requires that age 50+ catch-up contributions be made on a Roth (after-tax) basis if the participant earned more than $145,000 in FICA wages from the same employer in the prior year. The rule was originally scheduled to take effect in 2024 but was delayed by IRS Notice 2023-62 — full enforcement starts in 2026 (administrative transition) and is fully operational by 2027. For 2027, the standard age-50 catch-up is approximately $8,000 and the new SECURE 2.0 super catch-up for ages 60–63 is approximately $11,250. Source: IRS Notice 2023-62 and SECURE 2.0 Act Section 603. Last updated: May 2026.
2027 Catch-Up Contribution Limits at a Glance
| Age Bracket | Standard Deferral | Catch-Up | Total |
|---|---|---|---|
| Under 50 | $24,500 | $0 | $24,500 |
| 50–59 | $24,500 | $8,000 | $32,500 |
| 60–63 (super catch-up) | $24,500 | $11,250 | $35,750 |
| 64+ | $24,500 | $8,000 | $32,500 |
The $145K Wage Test and Indexing
The $145,000 threshold is based on Section 3121(a) FICA wages from the same employer in the prior calendar year — not your gross compensation. It excludes nonqualified deferred comp, but includes bonuses subject to FICA. Critically, it's a per-employer test: if you change jobs mid-year, the new employer treats you as below the threshold for your first year there. The threshold is indexed for inflation in $5,000 increments starting in 2026, so by 2027 the threshold may rise to $150,000. Self-employed individuals and partners (with K-1 income, not W-2 wages) are NOT subject to the mandatory Roth rule — they can still do pretax catch-ups regardless of income.
Should You Welcome or Resent the Mandatory Roth Rule?
The math favors mandatory Roth catch-up if your retirement marginal rate is higher than today's — which is unlikely for most high earners. However, three benefits often outweigh the upfront tax cost: (1) Roth accounts have no RMDs, giving more estate-planning flexibility; (2) Roth withdrawals don't increase your Medicare IRMAA surcharges or push Social Security taxability up; (3) tax-free compounding for 15+ years often beats deferring tax at a slightly lower future rate. The biggest losers are high earners planning a low-bracket retirement gap year for Roth conversions — they'd have preferred to do the conversion themselves at lower rates.
Frequently Asked Questions
Who must do Roth catch-up under SECURE 2.0 in 2027?
Anyone age 50 or older whose prior-year FICA wages from the same employer exceeded $145,000 must make their entire catch-up contribution as Roth (after-tax). The wage test is per-employer, so a job change resets the test. Source: IRS Notice 2023-62 and SECURE 2.0 Section 603.
What is the 2027 catch-up limit?
Age 50–59 and 64+: approximately $8,000 catch-up (on top of the $24,500 standard deferral). Age 60–63: super catch-up of approximately $11,250 — a new SECURE 2.0 provision that gives a 4-year window to maximize savings before retirement.
Does the mandatory Roth rule apply to self-employed?
No. The rule only applies to W-2 employees with FICA wages over $145,000. Self-employed individuals, partners with K-1 income, and solo 401(k) owners can still make pretax catch-up contributions regardless of income.
What happens if my employer's plan does not offer Roth?
Then no participant in that plan can make catch-up contributions at all, regardless of income. SECURE 2.0 effectively forces 401(k) sponsors to add Roth options or lose catch-up entirely for high earners. Most large plans have already added Roth treatment by 2026.
When does the mandatory Roth catch-up rule actually start?
Statutorily 2024, but IRS Notice 2023-62 provided a 2-year transition delay. Full administrative enforcement begins 2026, fully operational by 2027. Plans that haven't updated payroll systems by 2027 face IRS compliance risk.