Yes—you can deduct an eligible cash gift funded from UK investments; the money did not need to be earned in the United States.

§170(a)(1)

There shall be allowed as a deduction any charitable contribution (as defined in subsection (c)) payment of which is made within the taxable year. A charitable contribution shall be allowable as a deduction only if verified under regulations prescribed by the Secretary.

§170(b)(1)(G), (I)

For taxable years beginning after December 31, 2017, any contribution of cash to an organization described in subparagraph (A) shall be allowed as a deduction under subsection (a) to the extent that the aggregate of such contributions does not exceed the excess of- (I) 60 percent of the taxpayer's contribution base for the taxable year, over (II) the aggregate amount of contributions taken into account under subparagraph (A) for such taxable year. Any charitable contribution otherwise allowable (without regard to this subparagraph) as a deduction under this section shall be allowed only to the extent that the aggregate of such contributions exceeds 0.5 percent of the taxpayer's contribution base for the taxable year.

§170(p)

In the case of any taxable year, if the individual does not elect to itemize deductions for such taxable year, the deduction under this section shall be equal to the deduction, not in excess of 1,000 ($2,000 in the case of a joint return), which would be determined under this section if the only charitable contributions taken into account in determining such deduction were contributions made in cash during such taxable year (determined without regard to subsections (b)(1)(G)(ii), (b)(1)(I), and (d)(1)) to an organization described in section 170(b)(1)(A) and not- (1) to an organization described in section 509(a)(3), or (2) for the establishment of a new, or maintenance of an existing, donor advised fund (as defined in section 4966(d)(2)).

Chapter 1, 2026 changes

Beginning in 2026, you can claim a deduction for cash contributions made to eligible tax-exempt organizations. You don’t have to itemize to take the deduction. Beginning in 2026, if you itemize, you can only deduct charitable contributions that are more than 0.5% of your adjusted gross income. Any amount that falls under the 0.5% floor can’t be deducted in 2026.

§170(f)(8), (17)

No deduction shall be allowed under subsection (a) for any contribution of a cash, check, or other monetary gift unless the donor maintains as a record of such contribution a bank record or a written communication from the donee showing the name of the donee organization, the date of the contribution, and the amount of the contribution. No deduction shall be allowed under subsection (a) for any contribution of $250 or more unless the taxpayer substantiates the contribution by a contemporaneous written acknowledgment of the contribution by the donee organization that meets the requirements of subparagraph (B).

Tax Exempt Organization Search Tool; Pub. 78 data

You can check an organization's: Eligibility to receive tax-deductible charitable contributions. Lists of organizations that can receive tax-deductible contributions. Users may rely on this list in determining deductibility of their contributions.

Resident aliens

A resident alien's income is generally subject to tax in the same manner as a U.S. citizen. If you are a resident alien, you must report all interest, dividends, wages, or other compensation for services, income from rental property or royalties, and other types of income on your U.S. tax return. You must report these amounts whether from sources within or outside the United States.

Foreign currency and currency exchange rates

If you receive all or part of your income or pay some or all of your expenses in foreign currency, you must translate the foreign currency into U.S. dollars. Use the exchange rate prevailing when you receive, pay, or accrue the item.

Sales and Other Dispositions of Capital Assets. File with your Schedule D to list your transactions for lines 1b, 2, 3, 8b, 9, and 10 of Schedule D.

Who Must File

Generally, a U.S. person that is a direct or indirect shareholder of a PFIC must file Form 8621 for each tax year under the following five circumstances if the U.S. person: Receives certain direct or indirect distributions from a PFIC, Recognizes gain on a direct or indirect disposition of PFIC stock, Is reporting information with respect to a Qualified Electing Fund (QEF) or section 1296 mark-to-market election, Is making an election reportable in Part II of the form, or Is required to file an annual report pursuant to section 1298(f). A separate Form 8621 must be filed for each PFIC in which stock is held directly or indirectly.

Reporting thresholds and filing comparison

Aggregate value of financial accounts exceeds $10,000 at any time during the calendar year. The Form 8938 filing requirement does not replace or otherwise affect a taxpayer’s obligation to file FinCEN Form 114 (Report of Foreign Bank and Financial Accounts).

When to file

The FBAR is an annual report, due April 15 following the calendar year reported. You’re allowed an automatic extension to October 15 if you fail to meet the FBAR annual due date of April 15. You don’t need to request an extension to file the FBAR.

Foreign pension or annuity distributions

Income received from foreign pensions or annuities may be fully or partly taxable, even if you do not receive a Form 1099 or other similar document reporting the amount of the income. Your residency determines how the treaty article on pensions/annuities will be applied.

Cash Contributions; Capital Gain Property

Cash contributions include payments made by cash, check, electronic funds transfer, online payment service, debit card, credit card, payroll deduction, or a transfer of a gift card redeemable for cash. Property is capital gain property if you would have recognized long-term capital gain had you sold it at FMV on the date of the contribution. Capital gain property includes capital assets held more than 1 year.