Donor-Advised Fund (DAF)
A donor-advised fund is the most tax-efficient vehicle for charitable giving for tech employees with appreciated stock. Contributing shares directly to a DAF eliminates capital gains tax on the appreciation entirely — the DAF sells the stock, not you — while generating an immediate charitable deduction at the full fair market value of the shares. For anyone with charitable intent in a high-income year, the DAF is the default starting point before any other offset strategy.
The core mechanics: why stock beats cash for DAF contributions
When you donate cash to charity, you get a deduction equal to the cash amount. When you donate appreciated stock directly to a DAF, you get a deduction equal to the fair market value of the shares on the contribution date — and you pay zero capital gains tax on the built-in appreciation. The DAF then sells the shares, pays no tax on the gain (as a charitable entity), and holds the proceeds for you to direct to qualified charities over time.
The difference is significant. Consider 1,000 shares of company stock with a cost basis of $20 and a current price of $150. If you sold the shares and donated the cash, you would owe capital gains tax — approximately $37,900 at the combined federal (20% + 3.8% NIIT) and California (13.3%) rate on the $130,000 gain — leaving roughly $112,100 to donate. Contributing the shares directly to the DAF results in the full $150,000 deduction, no capital gains tax, and the full $150,000 available for charitable grants.
The AGI limitation and carryforward
Charitable deductions for appreciated property contributed to a DAF are limited to 30% of your adjusted gross income in the contribution year. If your AGI is $800,000, the maximum deduction in year one is $240,000, regardless of the contribution amount. Any excess deduction carries forward for up to 5 tax years and can be used against future AGI, subject to the same 30% annual limit in each carryforward year.
For tech employees with large RSU vesting years, the carryforward is often part of the planning. Contributing a large block of appreciated shares in a high-income year may result in more charitable deduction than can be used in year one — the carryforward then provides deductions in subsequent years when income may still be elevated. Timing the contribution to a year with maximum AGI and maximum future carryforward utility is part of the strategy.
DAF vs. direct donation: what changes and what does not
A DAF is a donor-advised fund account at a sponsoring organization (Fidelity Charitable, Schwab Charitable, Vanguard Charitable, community foundations, and others). Once you contribute assets to the DAF, the contribution is irrevocable — you cannot retrieve the assets. You can, however, recommend grants from the DAF to any qualified 501(c)(3) organization at any time, including immediately after contribution. The sponsoring organization processes the grant; the charity receives the funds.
You do not need to decide where to grant at the time of contribution. This is one of the DAF's most useful features: you can contribute shares in December of a high-income year — locking in the deduction — and take time to decide which organizations to support. The assets sit in the DAF, invested in a portfolio you select, until you recommend grants.
| Feature | Donor-Advised Fund | CLAT |
|---|---|---|
| Immediate deduction | Yes — full FMV | Yes — PV of annuity stream |
| Capital gains at contribution | None | None at individual level |
| Irrevocable | Yes (assets) | Yes |
| Grant flexibility | Full flexibility, anytime | Fixed annuity to named charity |
| Heirs receive remainder | No | Yes (trust remainder) |
| Estate planning benefit | None | Yes (§7520 arbitrage) |
| Complexity | Very low | High (trust drafting, modeling) |
| Minimum practical size | Any (no minimum) | Typically $1M+ |
RSU-specific applications: front-loading charitable giving
The DAF is especially well-suited to RSU cycles. In a high-vesting year — when income spikes due to a large grant cliff vesting, a promotion, or a new-hire cliff — you can contribute shares that have appreciated since vesting (or shares that vested at a price lower than current value) to front-load several years of charitable giving into a single high-deduction year. Rather than donating $20,000–$30,000 per year over ten years, you contribute the full $200,000–$300,000 in one peak-income year and direct grants over the subsequent decade at your own pace.
Tax basis of RSU shares: when DAF contributions are less advantageous
RSU shares are taxed as ordinary income at vesting — your cost basis is the fair market value on the vesting date. If you contribute RSU shares that have not appreciated since vesting, there is no capital gains tax to eliminate. The deduction is still valuable (30% of AGI limit applies), but the structural advantage of "eliminating capital gains by contributing appreciated stock" does not apply to recently-vested RSUs. It applies most powerfully to shares that were either granted long ago at a low price, or to ESPP shares purchased at a discount that have since appreciated.
How to set up and use a donor-advised fund
Identify the shares to contribute
The most tax-efficient contribution is long-term appreciated stock — shares held more than one year with significant gain above basis. For RSU shares, shares that vested more than a year ago and have since appreciated are the right candidates. Recently-vested RSU shares (basis = vesting price) generate a deduction but no capital gains elimination on the appreciation above basis, since there isn't any yet.
Open a DAF account at a sponsoring organization
Fidelity Charitable, Schwab Charitable, and Vanguard Charitable are the largest national sponsors — no account minimums, low administrative fees, and broad grant capability. Community foundations offer additional services and local focus. The sponsoring organization handles all IRS compliance and grant processing.
Initiate the stock transfer (not a sale)
You transfer shares directly from your brokerage to the DAF — this is a transfer in kind, not a sale. The DAF receives the shares and issues a written acknowledgment confirming the contribution date and number of shares. The fair market value on the contribution date determines the deduction amount. Critically, you never sell the shares and never receive proceeds; that is the DAF's role.
Invest the DAF balance
Once the DAF sells the contributed shares (with no tax consequences), you direct the proceeds into an investment portfolio within the account. Most sponsors offer diversified investment pools. The balance grows tax-free while sitting in the DAF, which can be meaningful if you plan to grant over multiple years.
Claim the deduction on your return
Your CPA claims the charitable deduction on Schedule A for the contribution year. The deduction is limited to 30% of AGI for appreciated property; any excess is captured in carryforward calculations. Keep the written acknowledgment from the sponsoring organization — it is required documentation for deductions over $250.
Recommend grants over time
You submit grant recommendations to the sponsoring organization for any qualified 501(c)(3) charity. There is no required pacing — you can grant immediately or hold the balance for years. Some sponsors allow recurring grant schedules. The assets in the DAF are permanently committed to charitable use; they cannot be returned to you.
If you plan to give, there is almost no reason not to do it through a DAF.
We identify which shares to contribute, model the AGI limitation and carryforward, and integrate the DAF deduction into your broader RSU income offset plan.
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