Before You Give: How Charitably Inclined Taxpayers Can Reduce Their Tax Bill First

A transferable tax credit is not a substitute for charitable giving — it's what you do before it

If you work with donors who are serious about maximizing the impact of their giving, you're already familiar with the standard toolkit: appreciated stock, bunching strategies, qualified charitable distributions, charitable gift annuities. These tools work because they reduce the tax cost of giving — meaning more of a donor's wealth flows to the causes they care about rather than to the IRS.

There is a tool that doesn't show up in most gift planning conversations yet: the transferable federal tax credit under IRC §6418. It belongs in the toolkit. Not because it's charitable — it isn't — but because reducing a donor's tax bill before a major giving year directly increases the capital available to give.

This article is for advisors who work with charitably inclined individuals and families, including those who give through donor-advised funds at organizations like the National Christian Foundation, Fidelity Charitable, and Schwab Charitable. It explains how transferable §45Q credits work, which donor profiles benefit most, and how the credit fits alongside the charitable strategies you're already using.

The Basic Mechanic

Under IRC §6418, certain federal clean energy tax credits — including §45Q carbon capture credits — can be purchased by a third-party taxpayer in exchange for cash. The buyer pays something less than the face value of the credit, acquires it, and applies it against their federal income tax liability.

The economics are straightforward: a buyer who pays, say, 88 cents to acquire a dollar of federal tax credit saves the spread. It is a direct, dollar-for-dollar reduction in federal income tax owed — not a deduction that reduces taxable income, but a credit that reduces the actual tax bill.

For a donor who has a high-income year coming — a business sale, a large capital gain, a year of peak earnings — and who is planning a significant charitable gift in that same year, the sequencing question matters. Reducing the tax bill first through a credit purchase means more after-tax capital available to give. The credit and the charitable strategy work in the same direction.

Why This Matters in a Giving Year

Consider how a gift planning conversation typically unfolds. A donor has a liquidity event — they're selling a business, realizing a large gain, or simply having an unusually high income year. They want to give significantly. The tools on the table are usually: donate appreciated stock to avoid capital gains, fund a donor-advised fund to accelerate the charitable deduction, perhaps a charitable gift annuity or trust structure for larger gifts.

All of those tools work on the deduction side — they reduce taxable income, which reduces the tax bill indirectly. A transferable tax credit works on the liability side — it reduces the actual tax owed, dollar for dollar, independent of deductions.

These aren't competing strategies. They address different parts of the tax equation, and they can be used together. A donor who funds a DAF with appreciated stock and purchases a transferable credit in the same year is using both levers — reducing taxable income through the deduction and reducing tax liability directly through the credit — to maximize the after-tax capital available for charitable purposes.

The practical question isn't whether to give or to buy a credit. It's: what is the total tax picture for this year, and have we used every legitimate tool available before the giving decision is finalized?

Which Donor Profiles Fit Best

Not every donor is the right fit for a transferable credit purchase, and being clear about that is part of serving clients well.

The strongest profile: donors giving through a C-corporation or family business entity. Widely held C-corporations are entirely exempt from the passive activity limitations under §469, which is the primary constraint on individual buyers. If a donor's charitable giving flows through or is coordinated with a C-corporation that has federal income tax liability, the credit utilization path is clean and well-supported under current law.

A strong profile: donors with passive income. High-net-worth individuals who have limited partnership interests, passive real estate investments, or other passive activity income already have a natural offset for the credit. Under current IRS regulations, transferred credits are treated as passive activity credits for individual buyers — meaning they offset tax allocable to passive income. For donors with meaningful passive income, this is a legitimate and well-documented utilization path.

A developing profile: donors with only active income. There is an active legal debate about whether the passive activity rules apply to transferred credits when the buyer has no ownership or participation in the underlying project whatsoever. Some practitioners, supported by formal opinion letters, take the position that §469 has no application in that circumstance. This position has a statutory basis, but it runs against the IRS's final regulations. Donors considering this position should do so only with qualified tax counsel and a formal opinion letter, with clear eyes about the regulatory risk.

The short version for gift planning conversations: ask about the donor's entity structure and passive income profile before recommending a credit purchase. The answer determines which path applies.

The Coordination Opportunity With DAFs

Donor-advised funds are particularly well-suited to work alongside a credit purchase strategy, for a simple reason: the DAF solves the timing problem.

A donor can contribute appreciated assets to their DAF in a high-income year, claim the charitable deduction, and then recommend grants to their preferred organizations over time. The DAF absorbs the full value of the contribution in the year of highest tax need, and the donor retains advisory control over when and where grants flow.

A transferable credit purchase in the same year works on the other side of the equation. The donor reduces their actual federal income tax liability directly. The deduction from the DAF contribution reduces their taxable income. Both happen in the same high-income year — the year when both strategies are most valuable.

The goal in both cases is the same: send less to the IRS in a year when the stakes are high, and redirect more capital toward the causes and communities the donor cares about. NCF's own framework captures this well — the question is always how to be a wise steward of what you have, and that includes the tax dollar.

A Practical Note on Sequencing

For advisors who want to introduce this tool into a gift planning conversation, the sequencing matters.

The credit purchase conversation belongs early — ideally in the same planning session where you're sizing the charitable contribution for the year. The reason is practical: credit availability from a given generator is finite, and transactions have lead time for documentation, IRS registration, and purchase agreement execution. A donor who decides in December that they want to buy a credit for the current tax year may find limited inventory or compressed timelines.

The right moment to introduce the concept is when you're projecting a high-income year and building the overall tax reduction strategy. At that point, the question is simply: what does the donor's tax liability look like after the charitable deduction, and is there remaining liability where a credit purchase makes sense?

The credit purchase doesn't replace charitable giving. It reduces the tax bill that exists even after charitable giving, freeing additional capital for the next round.

What Comes Next

The regulatory landscape for individual buyers of transferable credits is evolving. We are tracking the development of additional IRS guidance under §45Q that could clarify — and potentially expand — the utilization path for individual taxpayers with active income and capital gains.

For donors who give through C-corporations or who have passive income today, the path is already clear. For advisors who want to be positioned to bring this tool to charitably inclined clients when guidance develops, the time to understand it is now — before a major liquidity event is already in progress.

I'm happy to walk through how this would apply to a specific donor's situation. The conversation is straightforward, and for the right profile, the economics are compelling.

This article is informational and does not constitute tax, legal, or accounting advice. The regulatory landscape described reflects current law and is subject to change as additional IRS guidance develops. Donors and their advisors should consult qualified tax counsel regarding their specific circumstances before entering into any credit transfer transaction.