New 401(k) catch-up rule may hit more Long Islanders

New federal regulations, finalized September 15 under SECURE 2.0 Act provisions, will mandate that individuals aged 50 and older earning over $145,000 make 401(k) catch-up contributions on an after-tax (Roth) basis starting in 2027. This change eliminates the pre-tax deferral option for high-income earners, potentially increasing their current taxable income and affecting eligibility for other deductions, particularly impacting those in peak earning years and high-cost-of-living regions. While offering tax-free growth and withdrawals in retirement, the shift necessitates personalized financial planning to assess the optimal timing for contributions and tax diversification strategies.

Analysis

Federal regulations under the SECURE 2.0 Act, finalized September 15, will mandate that individuals aged 50 and older earning over $145,000 make 401(k) catch-up contributions on an after-tax (Roth) basis starting in 2027. This change eliminates the pre-tax deferral option for high-income earners, potentially increasing their current taxable income and affecting eligibility for other deductions. The current catch-up limit for 2025 is $7,500.

This rule is expected to disproportionately impact high-cost-of-living regions like Long Island, where median household incomes (e.g., Nassau $143,144) frequently exceed the $145,000 threshold. Financial experts note that many workers previously relying on pre-tax catch-up contributions for tax reduction will now see higher taxable income, shifting their tax burden to the present.

While Roth contributions offer tax-free growth and withdrawals in retirement, the immediate loss of a tax deduction during peak earning years presents a significant drawback for some. This regulatory shift underscores the critical need for personalized financial planning, as the optimal strategy varies based on individual tax projections and retirement goals.

The change comes amidst broader concerns about retirement preparedness, particularly in high-cost areas where many seniors face financial insecurity. Investors should consider alternative tax-advantaged savings vehicles such as HSAs, backdoor Roth IRAs, or tax-aware taxable brokerage accounts to diversify their retirement savings strategies.

Key Decisions for Investors

• Investors aged 50 and older earning over $145,000 should immediately review multiyear tax projections to assess the impact of the mandatory Roth catch-up contributions starting in 2027.
• Consider maximizing pre-tax 401(k) catch-up contributions through 2026 to leverage the existing tax deferral strategy before the rule change takes effect.
• Evaluate alternative tax-advantaged savings vehicles like Health Savings Accounts (HSAs), backdoor Roth IRAs, or tax-aware taxable brokerage accounts to diversify retirement savings and manage tax exposure.
• Engage with a financial advisor to tailor a retirement savings strategy that accounts for individual income, tax bracket, and long-term financial goals, especially given the nuanced implications of this rule change.