Donate Stock or Cash? The 23.8% Gap on a $50K Gift

Margaret and David, married filing jointly in Massachusetts, have decided to give $50,000 to their alma mater this year. Their brokerage account holds a position they bought for $10,000 that is now worth $50,000 — a $40,000 long-term gain. Their combined income puts them in the 35% federal ordinary bracket (MFJ taxable income of $501,051 to $751,600 for 2026) and, because their modified AGI is over the $250,000 MFJ net-investment-income threshold and their taxable income tops the $600,050 MFJ breakpoint where the top long-term capital gains rate begins, any capital gain they realize is taxed at the full 23.8% — 20% long-term capital gains under IRC §1(h) plus the 3.8% net investment income tax under §1411.

They are weighing two ways to write that $50,000 check. Option A: sell the stock, pay the tax on the gain, donate what is left and top it up with cash. Option B: transfer the shares directly to the charity. The deduction is the same either way. The tax bill is not.

The decision, resolved with math

The charity is tax-exempt, so when it receives appreciated stock it sells the shares and pays $0 in capital gains tax. That is the whole game: by routing the gain through the charity instead of through your own 1040, the $40,000 of appreciation is never taxed to anyone.

Read the last row carefully. In both columns Margaret and David get a $17,500 income-tax benefit from the deduction (35% of the $50,000 written off). But in the sell-first column they first hand the IRS $9,520 on the gain, so their net tax benefit shrinks to $7,980. By transferring the shares directly, they keep the full $17,500 benefit and pay nothing on the gain. The gap between the two paths is exactly the $9,520 capital gains tax — 23.8% of the $40,000 of appreciation. Same charity, same $50,000, same deduction, $9,520 less tax.

Why the in-kind gift beats selling first

Three things have to be true for the full benefit to land, and all three are true for Margaret and David:

1. The stock is long-term. They held it more than one year, so the deduction equals fair market value, not cost basis (IRS Pub. 526).
2. They itemize. A $50,000 deduction only helps if total itemized deductions clear the 2026 standard deduction of $31,500 for MFJ. A $50,000 gift alone does that.
3. The recipient is a public charity. Gifts to 50%-limit organizations (most universities, churches, hospitals, and community foundations) qualify for the fair-market-value deduction on appreciated property.

If you sold the stock yourself, you would realize the $40,000 gain and owe the 23.8% on it before a dollar reached the charity. The deduction does not erase that gain — a deduction reduces your ordinary income at 35%, while the gain is its own line taxed at the capital-gains rate. They are two different taxes, and selling first forces you to pay one of them for no reason.

The 30%-of-AGI ceiling: the one real constraint

Here is the trade-off the in-kind route carries. Cash gifts to public charities are deductible up to 60% of AGI in a single year. Appreciated-property gifts are capped at 30% of AGI (IRS Pub. 526). The gain you skipped has a price: a tighter annual deduction ceiling.

For most donors the 30% ceiling never binds. Say Margaret and David have $300,000 of AGI: they can deduct up to $90,000 of donated stock this year — well above their $50,000 gift. The 30% cap only becomes a live issue when a single year’s appreciated-stock gift exceeds roughly a third of your income. When that happens, you have two clean fixes: deduct up to the 30% limit this year and carry the excess forward up to five years, or split the gift — donate stock up to 30% of AGI and add cash up to the remaining headroom under the 60% overall limit.

Walk the carryforward through. Suppose a donor with $200,000 of AGI gives $90,000 of appreciated stock in one year. The 30% ceiling caps this year’s deduction at $60,000 (30% × $200,000). The remaining $30,000 does not vanish — it carries forward and can be deducted in any of the next five years, still subject to the 30% ceiling in each future year. The deduction is preserved; only its timing shifts. That is why a big in-kind gift rarely costs you any tax benefit even when it tops the cap — you simply spread the deduction across more returns while still skipping 100% of the gain up front.

What most people miss

The biggest mistake is reflexively donating cash because it feels simpler. Writing a check from your bank account when you are sitting on a low-basis stock position is the single most common way high earners overpay tax on charitable giving. The brokerage transfer takes one form and a few days — it is not meaningfully harder than a check.

The second mistake is the mirror image: donating a stock that has fallen in value. Never do this. If you donate a loser, you deduct only its depressed current value and you throw away the capital loss entirely. The correct move is to sell the losing position yourself, harvest the capital loss to offset other gains plus up to $3,000 of ordinary income under IRC §1211, and donate the cash. In-kind gifting is for winners only.

The third miss is the holding period. Shares held one year or less are short-term, and the deduction is capped at the lower of basis or fair market value — so the same $10,000-basis position worth $50,000 would only generate a $10,000 deduction if you donated it at month eleven. If you are close to the one-year mark, wait until you cross it before transferring.

A fourth trap: trying to deduct stock you donated to a private non-operating foundation. Gifts of appreciated stock to most private foundations are limited to 20% of AGI, and for anything other than publicly traded stock the deduction drops to cost basis. The 30%-of-AGI fair-market-value treatment described here applies only to public charities and donor-advised funds.

Picking the right lots and routing the gift

• Hand-pick your lowest-basis lots. If you bought the same stock at several prices, donate the shares with the largest embedded gain. You skip the most tax per share given. A direct-indexing account is a goldmine here because it holds dozens of individual lots with very different bases.
• Use a donor-advised fund to decouple timing. If you want this year’s deduction but have not chosen the charities yet, contribute the stock to a DAF. You get the full FMV deduction now under the same 30%-of-AGI limit, the fund sells the stock tax-free, and you recommend grants on your own schedule.
• Bunch into high-income years. The deduction is worth more in a 32% or 35% year than in a low-income retirement year. Front-loading a large stock gift — or several years’ worth into one DAF contribution — into a peak year squeezes the most value out of every dollar of basis you give away.
• File the paperwork. Non-cash gifts over $500 require Form 8283. Publicly traded stock over $5,000 needs Section A but no appraisal. Get the charity’s written acknowledgment before you file.

When cash actually wins

Donating stock is not always the answer. Cash is the better choice when:

• The shares are short-term (held one year or less) — you would only deduct basis anyway.
• The position is at a loss — sell it, harvest the loss, donate the proceeds.
• Your gift is large relative to income and you need the 60%-of-AGI cash ceiling to take the full deduction this year rather than carrying it forward.
• The asset has little or no gain — there is no embedded tax to avoid, so the simpler cash gift is fine.

Don’t forget the state tax on the gain

The 23.8% federal figure understates the real saving in most states, because the gain you avoid would have been taxed at the state level too. Margaret and David live in Massachusetts, which taxes long-term capital gains at the state’s flat 5% income rate. Selling their $40,000 gain would have added roughly $2,000 of Massachusetts tax on top of the $9,520 federal bill — a combined $11,520 they sidestep entirely by transferring the shares. A California donor in the top bracket would avoid state tax on the gain at rates up to 13.3%, pushing the combined avoided rate well above 37%. The in-kind move skips both layers in one transfer; selling first exposes you to both. States with no income tax (Texas, Florida, Washington, and six others) have no state gain to avoid, but the federal 23.8% saving stands on its own.

The decision lever

Run one number before you write any year-end charitable check: the embedded gain on your most-appreciated long-term position, times your capital gains rate. For a top-bracket investor that rate is 23.8%; in the 15% LTCG band with NIIT it is 18.8%; in the 0% band it may be nothing. If that product is a meaningful number — and on a $40,000 gain it is $9,520 — transfer the shares instead of cash. You give the charity the same amount, claim the same deduction, and keep the capital gains tax you would otherwise have volunteered to pay. The only thing that changes your answer is the 30%-of-AGI ceiling, and for almost every donor giving less than a third of their income away in a single year, that ceiling is irrelevant.