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Excess 401(k) contributions

Taxed twice if not fixed

Can You Write Off Excess 401 Contributions?

Short answer: Deferrals over the 2026 limit must come out, with earnings, by April 15 or the excess is taxed when contributed and again when withdrawn.

2026 limits: $24,500 for 401(k)s ($8,000 catch-up at 50+), $7,500 for IRAs ($1,100 catch-up), and $72,000 total employer plus employee 401(k) additions.

Records to keep: Keep receipts, statements (1098, 1098-T, 1099, W-2G), and a note of what each cost was for. Compare itemizing to the 2026 standard deduction before you claim.