08 Dec CPA NEWSLETTER – DECEMBER 2025 EDITION
As we approach year-end, it’s time to review your retirement savings strategy to maximize contributions, minimize taxes, and avoid penalties.
Below, we outline the 2025 retirement plan contribution limits, required minimum distribution (RMD) rules, and key tax implications to guide your planning.
1. 2025 Retirement Plan Contribution Limits
Maximizing contributions to tax-advantaged retirement accounts remains one of the most effective ways to reduce taxable income and build wealth. Here are the key 2025 limits:
| Plan Type | Contribution Limit | Catch-Up (Age 50+) | Total (Age 50+) | Tax Benefit |
|---|---|---|---|---|
| 401(k), 403(b), 457, TSP | $23,500 | $7,500 | $31,000 | Pre-tax or Roth (employee choice) |
| Solo 401(k) (Self-Employed) | $70,000 (employee + employer) | $7,500 | $77,500 | Pre-tax or Roth (employee portion) |
| SEP IRA (Self-Employed) | $70,000 or 25% of net earnings | N/A | $70,000 | Pre-tax only |
| SIMPLE IRA | $16,000 | $3,500 | $19,500 | Pre-tax or Roth (if plan allows) |
| Traditional/Roth IRA | $7,000 | $1,000 | $8,000 | Deductible (Traditional) or Roth |
Phase-Outs for Deductibility (Traditional IRA, if covered by workplace plan):
- Single: $80,000–$90,000 MAGI
- Married Filing Jointly: $126,000–$146,000 MAGI
- Non-covered spouse: $236,000–$246,000 MAGI
Roth IRA Contribution Phase-Outs:
- Single: $144,000–$159,000 MAGI
- Married Filing Jointly: $230,000–$240,000 MAGI
Planning Tip: If you’re over the Roth IRA income limit, consider a “backdoor Roth IRA” by contributing to a nondeductible Traditional IRA and converting to Roth. Be cautious of the pro-rata rule if you have existing pre-tax IRA balances.
2. Tax Implications of Contributions
- Pre-Tax Contributions (401(k), Traditional IRA, SEP, SIMPLE): Reduce 2025 taxable income dollar-for-dollar, potentially dropping you into a lower tax bracket. For example, a $23,500 401(k) contribution for a taxpayer in the 24% bracket saves $5,640 in federal tax, plus state tax (e.g., ~$1,175 in CA at 5%).
- Roth Contributions: No immediate tax deduction, but qualified withdrawals (after age 59½ and 5-year holding period) are tax-free, including earnings. Ideal if you expect higher taxes in retirement or want tax-free growth.
- Net Investment Income Tax (NIIT): High earners (MAGI > $200,000 single, $250,000 joint) can reduce NIIT exposure (3.8%) by lowering MAGI through pre-tax contributions.
- Saver’s Credit: Low-to-moderate-income taxpayers (2025 AGI < $76,500 joint, $38,250 single) may qualify for a credit up to $2,000 ($4,000 joint) for IRA/401(k) contributions.
3. Required Minimum Distributions (RMDs) – 2025 Rules
RMDs force taxable distributions from pre-tax retirement accounts, increasing your tax liability. Key 2025 updates:
- RMD Age: 73 (born 1951–1959) or 75 (born 1960 or later, per SECURE 2.0).
- Accounts Subject: Traditional IRAs, 401(k)s, 403(b)s, SEP/SIMPLE IRAs. Roth 401(k)s are exempt starting 2024 (SECURE 2.0 change).
- Calculation: Divide 12/31/2024 account balance by IRS Uniform Life Table factor (e.g., 26.5 for age 73). For a $1M IRA, RMD ≈ $37,736.
- Tax Rate: Taxed as ordinary income (up to 37% federal + state). 3.8% NIIT may apply if MAGI exceeds thresholds.
- Penalty for Non-Compliance: 25% of the shortfall (reduced to 10% if corrected within 2 years).
- Roth Conversions as a Workaround: Convert pre-tax IRA/401(k) to Roth before RMD age to eliminate future RMDs. Pay tax now at potentially lower rates (e.g., 24% vs. 35% in future).
Planning Tip: Use Qualified Charitable Distributions (QCDs) to satisfy RMDs (up to $105,000 in 2025, indexed). QCDs are excluded from taxable income, even if you don’t itemize.
4. Excess Contribution Penalties
Contributing above the 2025 limits triggers a 6% annual excise tax per account until corrected.
Common errors:
- Overfunding IRAs due to miscalculated MAGI phase-outs.
- Misjudging Solo 401(k)/SEP limits for self-employed individuals.
Fix It: Withdraw excess contributions plus earnings before April 15, 2026, to avoid the penalty.
5. Early Withdrawal Penalties
- Before Age 59½: 10% penalty + ordinary income tax on pre-tax withdrawals (e.g., $10,000 withdrawal at 24% bracket = $3,400 tax/penalty).
- Exceptions: First-time home purchase ($10,000 IRA limit), qualified education, medical expenses > 7.5% AGI, or 72(t) substantially equal payments.
- Roth Accounts: Contributions (not earnings) can be withdrawn penalty-free anytime.
Action Items Before Year-End 2025
- Maximize Contributions: Confirm 401(k)/IRA contributions to hit the $23,500/$7,000 limits (or $31,000/$8,000 with catch-up). Self-employed clients should calculate SEP/Solo 401(k) limits based on 2025 net earnings.
- Check RMD Compliance: If age 73+, verify your 2025 RMD amount and consider QCDs to offset tax. First-year RMDs can be delayed to April 1, 2026, but this doubles 2026 RMDs.
- Roth Conversion Analysis: Model conversions to lock in 2025 rates (e.g., 24% vs. projected 28%+ post-TCJA sunset in 2026). We can run projections in 1–2 weeks.
- Backdoor Roth Setup: If over income limits, initiate nondeductible IRA contributions before 12/31 for conversion in January 2026.
- Saver’s Credit Eligibility: Review AGI to claim the credit on your 2025 return.
Why Act Now?
- The TCJA’s lower tax rates (e.g., 24%, 32%) expire 12/31/2025, potentially increasing 2026 rates (e.g., to 28%, 33%). Maxing pre-tax contributions or Roth conversions now can lock in savings.
- Year-end deadlines for 401(k)/SIMPLE contributions are firm (12/31/2025). IRAs and SEPs allow contributions until April 15, 2026, but early planning avoids cash flow surprises.