Internal Revenue Service
Trust through transparency
Sources & Methodology
See the official guidance and research behind our lessons, calculators, readiness reviews, and planning rules.
Official first
We prioritize government agencies, regulators, and primary research.
Limits stay visible
Sources inform education and estimates; they don't remove household-specific assumptions.
Reviewed over time
Annual planning policies include verification dates so changes can be reviewed deliberately.
9 official sources
- Open official source (opens another site)
Internal Revenue Service
2026 retirement contribution and Roth phaseout adjustments
Used in:Step 11: Build a legacy that starts with stabilityStep 7: Fund tax-advantaged accounts toward your retirement goalStep 8: Maximize retirement contributions within 2026 limitsTax-Advantaged AccountsOpen official source (opens another site)- Open official source (opens another site)
Internal Revenue Service
401(k) and profit-sharing plan contribution limits
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Internal Revenue Service
Catch-up contribution rules
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Internal Revenue Service
Designated Roth accounts and in-plan rollovers
- Open official source (opens another site)
Internal Revenue Service
IRA contribution limits
- Open official source (opens another site)
Internal Revenue Service
One-participant 401(k) plans
- Open official source (opens another site)
Internal Revenue Service
Salary deferrals when eligible for more than one plan
- Open official source (opens another site)
Internal Revenue Service
SEP contribution limits