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The full $400K RMD lands in your adjusted gross income at a 37% marginal rate. Your $100K cash donation is washed out by the standard deduction, so the charitable gift delivers effectively zero federal tax relief. AGI stays elevated, pushing up IRMAA Medicare surcharges and Social Security taxation.
The $100K QCD counts toward your RMD and is excluded from AGI entirely. Only $300K of the RMD flows to your return, taxed at the same 37% rate. AGI drops by $100K — lowering IRMAA brackets and preserving Social Security benefits. Net savings: $37,000 in a single filing year.
| Metric | Cash Gift Approach | QCD Approach |
|---|---|---|
| RMD Taken Into Income | $400,000 | $300,000 |
| Charitable Gift Amount | $100,000 | $100,000 |
| Deduction Actually Captured | $0 | N/A (pre-AGI exclusion) |
| Federal Tax on RMD | $148,000 | $111,000 |
| Net Giving Cost | $148,000 | $111,000 |
QCDs may only be directed to 501(c)(3) public charities. Transfers to donor-advised funds, private non-operating foundations, or supporting organizations are specifically excluded. A well-intentioned gift to a DAF converts what should be a tax-free distribution into a fully taxable RMD.
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| Requirement | Criteria |
| Minimum donor age | 70½ on distribution date |
| Eligible account | Traditional, Rollover, or Inherited IRA |
| Transfer method | Custodian direct to charity only |
| Qualifying recipient | 501(c)(3) public charity |
| Annual cap (2026) | $108,000 per individual |
Disclaimer: This is not tax advice, and it is recommended to consult a tax professional, as every tax situation is unique.