Donating Appreciated Stock to Charity: The RSU Tax Strategy Most Tech Employees Miss
If you give money to charity and you hold appreciated stock, you are almost certainly doing it wrong. Selling the stock first and donating the cash costs you 18–24% of every dollar in capital gains taxes before the charity ever sees it. Donating the shares directly eliminates that tax entirely — and your deduction is the same either way. Here is how the mechanics work and what changed in 2026.
The double tax benefit, explained
When you donate appreciated securities directly to a qualified charity or a Donor Advised Fund (DAF), two things happen that don't happen when you donate cash:
- You never pay capital gains tax on the appreciation. The charity or DAF receives the shares, sells them tax-free (because charities pay no capital gains tax), and the gain disappears from your return entirely.
- Your charitable deduction is the full fair market value on the date of transfer — not your cost basis. You deduct what it's worth today, not what you paid for it.
The combination is powerful: you avoid the tax AND get credit for the full current value. No other strategy in the tax code generates this double benefit in a single transaction.
The RSU-specific nuance: holding period matters
This is the part most guides skip. RSUs are ordinary income when they vest — the IRS treats the full fair market value on vesting as wages, withheld on and reported on your W-2. That vesting event creates your cost basis.
To donate appreciated RSU shares and deduct the full FMV, two conditions must both be true:
- The shares must have appreciated above your vest-day FMV (your cost basis)
- You must have held the shares for more than 12 months after vest, so the gain is long-term1
Practically, this means the strategy works best for tech employees who:
- Work at a company whose stock has gone up since their last RSU vest
- Are in the habit of selling RSU shares at vest to diversify — but actually hold some tranches for 12+ months before donating
- Hold ESPP shares that have appreciated past their purchase price and discount-adjusted basis
- Have employer stock in a 401(k) eligible for Net Unrealized Appreciation (NUA) treatment
The math: sell-and-donate vs. donate-shares-directly
Assume a senior software engineer at a public tech company:
- AGI: $450,000
- Tax bracket: 37% federal marginal (ordinary income)
- LTCG + NIIT rate: 18.8% (15% LTCG + 3.8% NIIT; below the $492K single-filer 20% threshold)2
- Holds 100 shares of employer stock, vested 18 months ago at $200/share ($20,000 cost basis), now trading at $300/share ($30,000 FMV)
- Plans to donate $30,000 to charity this year
| Sell stock first, donate cash | Donate shares directly | |
|---|---|---|
| Capital gains tax (18.8% on $10K gain) | $1,880 owed | $0 |
| Charitable deduction | $30,000 (minus 0.5% AGI floor = $27,750 net) | $30,000 (minus 0.5% AGI floor = $27,750 net) |
| Tax savings at 37% | $10,268 | $10,268 |
| Net out-of-pocket cost to give $30K | $21,612 ($30K − $10,268 + $1,880) | $19,732 ($30K − $10,268) |
| Advantage of donating shares directly | $1,880 saved — exactly the capital gains tax avoided | |
The gain here is modest ($10K gain, $1,880 savings) because these shares haven't run far past basis. The real leverage comes when shares have 3–5× appreciated: a $200K position with $5K basis and $195K gain saves over $36,000 in capital gains taxes by donating instead of selling.
What is a Donor Advised Fund (DAF)?
A DAF is a charitable account you open at a sponsoring institution (Fidelity Charitable, Schwab Charitable, Vanguard Charitable are the largest). You contribute assets now, get the deduction now, and then grant funds to specific charities over time — months or years later. The sponsoring institution sells any contributed securities tax-free and holds the proceeds until you direct grants.
Why a DAF instead of donating directly to each charity?
- You can donate stock to the DAF and have the DAF wire cash to charities that don't accept stock transfers (most local nonprofits, churches, schools).
- Bunching: You can contribute three to five years of giving in a single year, take the large itemized deduction that year, and grant out to charities on your normal schedule. See below.
- No rush: The contribution to the DAF locks in your deduction and ends your capital gains exposure. You can decide which charities to support at your own pace.
The bunching strategy: why the 2026 standard deduction changes everything
The 2026 standard deduction is $16,100 for single filers, $32,200 for married filing jointly.3 If your total itemized deductions (mortgage interest, state taxes capped at $10K SALT, charitable giving) don't exceed that, you take the standard deduction and your charitable contributions generate zero additional tax benefit.
The bunching strategy solves this. Instead of giving $10,000 per year for three years (and potentially failing to clear the standard deduction threshold), you contribute $30,000 to a DAF in year one — itemizing and getting the full deduction — then grant $10,000/year to charities from the DAF over the next three years. You take the standard deduction in years two and three when you have no large charitable deduction, and itemize only in the year you make the big DAF contribution.
What changed in 2026 under the OBBBA
The One Big Beautiful Bill Act (signed July 2025) made several permanent changes affecting charitable giving:4
- 0.5% AGI floor for itemizers. If you itemize, the first 0.5% of your AGI in charitable contributions is not deductible. At $450,000 AGI, that's $2,250 of giving that generates no deduction — a modest but real reduction. This applies to all charitable contributions, including appreciated stock donations.
- New non-itemizer deduction: $1,000 single / $2,000 married. If you take the standard deduction, you can now deduct up to $1,000 ($2,000 MFJ) in cash charitable contributions above-the-line. This does not apply to stock donations — only cash to a qualified 501(c)(3).
- 60% AGI limit for cash contributions made permanent. Previously a TCJA provision set to expire; now permanent. Appreciated property remains capped at 30% of AGI with a 5-year carryforward.
AGI limits and carryforward
Contributions of long-term appreciated property (including stock held 12+ months) are deductible up to 30% of your AGI in the year of contribution. Anything above that cap can be carried forward for up to five subsequent tax years, subject to the same 30% cap each year.1
At $450,000 AGI, the cap is $135,000 in appreciated-property contributions. For most tech employees giving $10,000–$50,000 per year, this limit never binds. It matters if you're planning a large single-year DAF contribution to coincide with an IPO or acquisition liquidity event.
Pitfalls to avoid
- Donating shares held less than 12 months. Your deduction is limited to cost basis, not FMV. Check the holding period before initiating any transfer. RSU shares held since a specific vest date — you should be able to pull this from your E*Trade, Fidelity, or Morgan Stanley equity portal.
- Assuming your charity accepts stock transfers. Most large nonprofits do. Many small ones don't. Use a DAF when in doubt — contribute shares to the DAF, which sells them and grants cash to any qualifying charity.
- Donating ISOs that haven't met the qualifying disposition holding period. If you donate ISOs you exercised less than 12 months ago (or less than 2 years from grant date), it triggers a disqualifying disposition. Consult an advisor before donating optioned shares.
- Ignoring the 0.5% AGI floor. It's small but real. If you're close to the standard deduction threshold even after giving, you may need to bunch more aggressively to make itemizing worthwhile.
- Waiting until December 31. Stock transfers to DAFs can take 3–5 business days to settle. Initiate the transfer by mid-December to ensure it's counted in the current tax year.
How an equity-comp specialist helps with this
The mechanics are straightforward. The judgment calls are not:
- Which specific lots of stock to donate (which lots have the highest gain relative to FMV and the right holding period)?
- Should you donate this year or bunch two years of giving into the next high-income year?
- How does this interact with your AMT liability from ISO exercises, estimated tax payments, and RSU withholding gaps?
- Is a DAF better for you than a charitable remainder trust or a direct private foundation, given your estate plan?
An equity-comp financial advisor can model the exact tax savings of each scenario against your full income picture — vesting schedule, ISO exercise plan, state tax exposure — and tell you whether a $30,000 DAF contribution in Q4 saves $11,000 or $15,000 in your specific situation.
Related guides and tools
- RSU Tax Calculator — estimate your withholding gap and April tax bill
- Concentrated Stock Diversification Calculator — model a multi-year sell-down vs. lump-sum sale
- Concentrated Stock Guide — strategies beyond selling: exchange funds, hedging, direct indexing
- QSBS § 1202 Guide — how the $15M exclusion interacts with donation timing
- Mega Backdoor Roth Guide — the other tax shelter that stacks with charitable giving
- Complete Guide to RSU Taxation (2026)
Model your exact tax savings from donating appreciated stock
The right answer depends on which lots you hold, when they vested, how the gain stacks with your income, and whether your state has its own LTCG rules. An equity-comp specialist can run the numbers on your actual holdings and tell you exactly what each donation strategy costs — and saves — in your situation.
Sources
All figures reflect the 2026 tax year. Verified May 2026 against IRS guidance and OBBBA statutory text.
- IRC § 170(e)(1)(A) — deduction for appreciated property limited to FMV only if long-term capital gain property (held >12 months). IRC § 170(b)(1)(C) — 30% AGI limit for contributions of appreciated capital gain property to public charities and DAFs; 5-year carryforward. IRS: Charitable Contribution Deductions
- 2026 LTCG brackets: 0% through $49,450 (single) / $98,900 (MFJ); 15% through ~$492,300 (single) / $553,850 (MFJ); 20% above. NIIT 3.8% on net investment income above $200,000 (single) / $250,000 (MFJ) modified AGI — IRC § 1411. Tax Foundation — 2026 Federal Tax Brackets
- 2026 standard deduction: $16,100 single, $32,200 MFJ. Per IRS Rev. Proc. 2025-67 and OBBBA inflation adjustments. IRS: 2026 inflation adjustments (OBBBA)
- One Big Beautiful Bill Act (H.R. 1, signed July 2025): § [charitable provisions] — 0.5% AGI floor for itemizers (IRC § 170(a)(3)); permanent $1,000/$2,000 above-the-line deduction for non-itemizers; 60% AGI limit for cash contributions made permanent. Fidelity Charitable — OBBBA Impact on Charitable Giving
- Fidelity Charitable — mechanics of stock donations and DAF transfers. Fidelity Charitable: Donating Stock