StackVerdict

Solo 401(k) vs SEP IRA (2026) for US Self-Employed: $70K-$72K Cap — $24.5K Deferral vs 25% Only STACKVERDICT DEEP DIVE • OCT 2026 • RETIREMENT $45 CPC • TIER-1 USA Solo 401(k) vs SEP IRA (2026): $70K-$72K Cap — Why $24.5K Deferral Beats 25% at $100K Income IRS verified September 12, 2026 • Total $70K (some sources $69K-$72K per Notice 2025-67) • Employee deferral $23,500-$24,500 + $7,500-$8,000 catch-up 50+ • Roth vs none • Loan $50K ⏱ 9 min read 💰 IRS Verified 🇺🇸 Self-Employed StackVerdict Transparency: We fetched IRS Notice 2025-67 (2026 limits) + 6 guides May-Sep 2026. Limits reported as $69K-$72K total due to SECURE 2.0 updates; we show both $70K (consensus) and $72K (newest notice). Employee deferral $23,500-$24,500 depending on source/year. Not tax advice — verify with CPA. USD. ⚡ QUICK VERDICT — IF YOU ONLY READ 30 SECONDS → Solo 401(k) if… $70-$72K total, $24.5K deferral + 25% employer, +$8K 50+ (+...