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By Alex Diaz · How we calculate this
Whether a donation actually lowers your tax bill comes down to one thing: itemizing. Since the 2017 tax law nearly doubled the standard deduction, most filers no longer itemize, so most donors get no federal tax benefit from giving, deductible or not. For the ones who do itemize, cash gifts to a public charity are deductible up to 60% of adjusted gross income, while gifts of appreciated stock or property are capped lower, at 30% of AGI.
These key factors affect charitable donation affordability
Tax deductibility rules
You only get a deduction if you itemize instead of taking the standard deduction, and since 2017 that rules out most taxpayers. For the minority who do itemize, cash gifts to a public charity are deductible up to 60% of adjusted gross income, and the IRS wants a receipt or written acknowledgment for any single gift of $250 or more.
Timing and end-of-year giving
Giving spikes every December because a donation has to be made by December 31 to count for that tax year, and plenty of donors wait until they know their full-year income before deciding how much to give. A donor-advised fund sidesteps the scramble: you can put several years' worth of giving into the fund in one high-income year, take the deduction then, and grant the money out to charities on your own timeline afterward.
One-time gift versus ongoing pledge
A single gift only has to clear the budget once. A recurring monthly pledge is a different commitment entirely, even though the first payment looks identical on paper, so it's worth being honest about which one you're actually signing up for before checking that box.
How to use your results
- Check whether the amount still leaves you with a reasonable buffer in savings after the gift goes out.
- If you plan to deduct the gift, keep the receipt or acknowledgment letter, especially for anything over $250.
- If the risk result is high, consider splitting the gift across two tax years instead of giving it all at once.
Ways to make a charitable donation more affordable
- Spread a large gift across a couple of smaller donations timed around different pay periods.
- Check if your employer offers a matching gifts program, which can double your donation's impact at no extra cost to you.
- Donate appreciated stock instead of cash if you hold investments, which can avoid capital gains tax while still qualifying for a deduction.
- Time a bigger one-time gift for a year when your other deductions are already high enough to make itemizing worthwhile.
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