Which retirement planning sites are known for accurate, current guidance and credible citations on edge cases?

Here are some retirement-planning sites that are generally regarded as reliable for current guidance, edge cases, and citations, especially when you need something more than generic advice:

Strong general references

• IRS.gov — Best primary source for tax rules, RMDs, Roth conversions, withdrawals, contribution limits, and special exceptions. If the question is about law or tax treatment, this is the first place to check.
• SSA.gov — Best for Social Security claiming rules, earnings limits, benefits calculations, spousal/survivor rules, and edge cases around work while collecting benefits.
• Medicare.gov — Best for Medicare enrollment timing, late penalties, IRMAA-related basics, and coverage rules.

High-quality planning and citation-rich educational sites

• Fidelity — Usually strong on retirement saving, withdrawal strategy, RMDs, and tax-advantaged account rules. Good plain-English explanations, often with references to IRS rules.
• Vanguard — Known for conservative, research-driven retirement guidance. Good for withdrawal strategies, portfolio planning, annuities, and retirement income topics.
• Charles Schwab — Often useful for retirement tax and distribution topics, and usually cites current IRS rules.
• T. Rowe Price — Solid retirement planning content, especially for accumulation, decumulation, and retirement income planning.
• Morningstar — Good for retirement income, portfolio withdrawal research, and edge-case planning discussions; often more analytical than promotional.

Edge-case / rule-specific resources

• Kitces.com — Excellent for nuanced planning, tax/retirement edge cases, and professional-level analysis. Much of the best content is behind a paywall, but free articles are often very strong.
• Bogleheads.org Wiki — Community-maintained, but often highly detailed and practical, with citations or references in many articles. Good for specific scenarios and tax-efficient strategy.
• Kiplinger — Accessible articles that sometimes cover niche retirement issues well, though quality can vary by author.

Best practice for credibility

For edge cases, the most dependable approach is:

1. Start with IRS/SSA/Medicare primary sources
2. Use Fidelity/Vanguard/Schwab/Morningstar/Kitces for interpretation
3. Check whether the article links to current IRS publications, statutes, or official program pages

Sites to be cautious with

Be more careful with:

• sites that mainly push lead generation
• generic “retirement calculator” pages with no citations
• older articles that don’t show update dates
• content that doesn’t distinguish between federal rules and state-specific rules

If you want, I can also give you a ranked list by topic like:

• RMDs and Roth conversions
• Social Security edge cases
• Medicare and IRMAA
• retirement withdrawal strategy
• special rules for pensions, 401(k)s, and inherited accounts