You wrote a check to the school auction last spring. Maybe a few hundred dollars, maybe considerably more, and you did not think about it again.

You also own a position in your employer’s stock that you have been meaning to trim for about two years, and have not, partly because selling it means paying tax on a gain you have watched grow since you joined.

Those two facts are related. Almost nobody connects them, and the households that do not are running the most expensive available version of both.

The connection

Here is the shape of it, before any mechanics.

When you give cash, you give away money you have already paid tax on, and the appreciated position sits where it was. Two separate events, neither helping the other.

When you give appreciated shares directly to a qualifying charity instead, the charity generally receives the shares, you generally take a deduction, and the gain on those shares generally does not get realized by you. The giving happens, and a slice of your concentrated position leaves your balance sheet without you paying tax to get it out.

The cash you would have given stays with you, free to buy something diversified.

Same charitable intent. Same amount reaching the organization. A materially different outcome for your household, and a concentration problem that got slightly smaller instead of staying exactly the same, which is the standing argument of the piece on why holding your company stock is not a strategy.

I am describing a general mechanism. Whether it applies to you, in what amount, and with what limits depends on what you hold, how long you have held it, your income, and the type of organization receiving it. All of that needs confirming with your CPA before you move anything, and the specific limits change.

The mistake that feels like the responsible choice

The most common version of this error is not giving cash. It is selling the stock and then donating the proceeds.

People do this because it is simpler and because it feels like the same thing. It is not the same thing. Selling first generally means you realize the gain, which is the one outcome the whole approach is designed to avoid, and then you make the gift with what is left after tax.

That sequence takes the most favorable version of the transaction and converts it into the least favorable one, with identical intent and identical effort.

If you are going to give, and you hold appreciated shares, the order matters enormously, and the order is decided before anything gets sold.

What to give, and what not to

There is a selection question underneath this, and it has a clean logic.

Appreciated shares you have held a long time are generally the candidates. The larger the embedded gain relative to what you paid, the more the approach is doing for you.

Shares that are worth less than you paid are generally not candidates. Those have a different use, which is realizing the loss deliberately, as we covered in the piece on why selling at a loss is not losing. Giving away a loss position hands the charity the same value and wastes something you could have used.

And shares you have not held long enough are generally treated less favorably than shares you have. The holding period matters and it is specific, so check it against your own lots rather than assuming.

Which means this is partly a lot selection exercise. Two blocks of the same stock in the same account can produce different results depending on when you acquired them and what you paid, and the brokerage will not choose well on your behalf by default.

The vehicle that fixes the timing problem

There is a structural awkwardness in all of this, and it is worth naming because it is the reason donor-advised funds exist.

Your charitable intent is probably steady. You support the same few organizations most years, in roughly comparable amounts. But your income is not steady, because a meaningful share of it arrives in lumps, which was the subject of the piece on why your income arrives in lumps. And the value of a deduction is not the same in every year.

A donor-advised fund separates those two timelines. In general terms, you contribute to the fund, the contribution is completed in that year, and you then recommend grants out to charities over whatever period you choose. The giving decision and the funding decision stop having to happen in the same month.

For a household with lumpy income and steady giving, that is the whole appeal. It lets the funding land in a year when it does the most for you, while the money reaches organizations on their own schedule.

Two cautions, and they are real.

A contribution to one of these funds is generally irrevocable. Money that goes in is committed to charitable purposes, and you cannot change your mind and take it back for your own use. That is the trade, and it should be a deliberate one rather than a surprise.

And these vehicles differ. Sponsors have their own minimums, fee structures, investment options, grant policies and acceptance rules. Read the sponsor’s documents rather than assuming they all work the same way, and understand the fees before you fund one.

If your shares are in a private company

This section is for the pre-IPO half of this audience, and the answer is less convenient.

Giving private company stock is substantially harder than giving public shares. Many sponsors will not accept it. Your company’s own transfer restrictions and right of first refusal may prevent the transfer entirely, which means the plan documents decide this before anyone else does. Valuation is its own problem, because there is no market price, and a qualified appraisal may be required, which costs money and takes time. And the same questions about what a private company share is actually worth that we worked through in the piece on what a private company equity number actually measures show up here too.

None of which makes it impossible. It makes it a project with a lead time measured in months rather than a thing you arrange in December. If you hold private shares and you have charitable intentions, the conversation to have is this year, about next year.

The timing reality

Everything in this article is calendar-year bound, which puts it squarely in the bucket that closes on December 31, as we laid out in the piece on what you can still change before year end.

And it is one of the slowest items in that bucket to execute. A fund has to be open before it can be funded. Share transfers are not instant and are not same-day. The receiving organization or sponsor has its own processing cutoffs, which are earlier than the thirty-first and earlier than you would guess. Appraisals, where needed, take weeks.

Which means the practical deadline for this is not the end of December. It is some point in early December that depends entirely on which institutions are involved, and the only way to know it is to ask them now.

What to actually do

You do not need a decision today. You need four answers, and three of them come from other people.

  • From your brokerage: your lots in the concentrated position, with acquisition dates and cost basis, so you can see what is appreciated and what is long held.
  • From your CPA: whether this approach fits your year at all, what the applicable limits are for your income and the type of organization, and whether a carryforward would apply if you exceeded them.
  • From any sponsor you are considering: acceptance rules, fees, minimums, grant policy, and the actual cutoff date for a transfer to count this year.
  • From yourself and your spouse: what you intend to give over the next several years, which is the input that determines whether a fund is useful or whether a direct gift of shares is simpler.

I am not going to tell you how much to give, what to give it to, or which vehicle to use. Those are yours, and the right answer for a household giving steadily to two organizations looks nothing like the right answer for one considering a large one-time gift.

But if you are giving at all, and you are holding appreciated stock you have been meaning to trim, then writing a check is the one approach that solves neither problem. The intent is already there. It is the mechanics that are leaving money on the table.