If you're a cross-border corporate tax advisor or even
remotely involved in international structures, you’ve probably been watching
with equal parts frustration and relief as Congress rewrote the rules on “Deemed
CFCs” and attribution. Let’s break down what just changed, why it matters, and
what the world looks like for closely-held and multinational businesses heading
into 2026.
The Downward Attribution Mess: How It Started
First, a bit of background for the non-tax nerds among
us—though, trust me, if you made it this far, you probably are one.
A controlled foreign corporation (CFC) is a foreign company
that meets certain U.S. ownership thresholds. If enough (at least 50%) of its
shares are owned, directly, indirectly, or constructively
(through complex family and group rules), by U.S. persons who each own at least
10%, that corporation becomes a CFC. Why does this matter? U.S. “U.S.
shareholders” (those crossing the 10% bar) must pick up a share of that CFC’s
income on their U.S. returns. Painful reporting and, sometimes, real tax
dollars follow.
For decades, the rules prohibited
“downward attribution.” This meant you couldn’t treat shares owned by a
foreign corporation as if a U.S. corporation below it in the structure owned
those shares. Minority U.S. shareholders weren’t at risk if a foreign parent
held the rest.
Enter the Tax Cuts
and Jobs Act (TCJA) of 2017, which quietly repealed that prohibition.
Suddenly, a U.S. subsidiary could be treated as owning stock in its foreign
“siblings” just because their common parent was foreign. Suddenly, way more foreign corporations got swept
into CFC status (“Deemed CFCs”), and random U.S. persons were tagged as U.S.
shareholders required to report and sometimes pay tax—even if they didn’t
really have control or access to the info.
Imagine you’re a U.S. minority shareholder in your family’s
foreign company, living blissfully unaware in Miami: overnight, you’re taxed
and forced into reporting on a company you don’t even control, purely because
of family ties and convoluted rules.
The Fallout: Treasury’s Whack-a-Mole
As the shock set in, both practitioners and the Treasury
Department scrambled to patch the leaks. Notice after revenue procedure after
notice tried to smooth the hardest edges. Some relief was granted (especially
when there was no real U.S. control, or for certain passive shareholders), but
the system was a compliance nightmare. Multi-national public corporations found
bizarre results. Closely held companies dreaded the letter from their CPA. Even
large U.S. public companies, like Altria with its stake in AB InBev, found
themselves facing tax bills and reporting chores for subsidiaries they didn’t
control in the slightest.
The 2025 Fix: Enter the One Big Beautiful Bill Act (OBBBA)
After years of handwringing and horror stories, Congress finally acted in 2025. The One Big Beautiful Bill Act (OBBBA)
restored the old regime: downward
attribution from foreign to U.S. shareholders is once again forbidden
starting January 1, 2026.
What does this mean in plain English? If you’re a U.S.
person, you’re no longer treated as owning shares held by a foreign parent. Deemed
CFCs—foreign companies pulled into the U.S. tax net solely by this
attribution—won’t exist anymore for most purposes.
But, if you’re a large multinational using complex
“sandwich” structures, don’t get too comfortable. OBBBA carves out a new
category: “foreign-controlled U.S. shareholders” and “foreign-controlled CFCs.”
Here, if a U.S. person is more than 50% controlled by a foreign parent,
downward attribution can still apply in limited ways, but only to make sure big
players don’t dodge the rules by moving pieces around. This is a sophisticated
fix, designed to snare the real tax avoiders but leave private companies and minority
shareholders alone.
What’s Next for Taxpayers
For most privately held businesses, family groups, and
minority shareholders, the burden lifts
as of 2026: less paperwork, less risk of surprise tax bills, fewer
stressful conversations with foreign relatives about information-sharing.
But, if you were swept up in the Deemed CFC dragnet since
2018, you’re not off the hook for reporting and tax that accrued during that
time. Old rules still apply for those years.
Regulations that were put in place to administer Deemed CFCs
will be withdrawn or rewritten. Some loopholes or weird results (like those
involving portfolio interest withholding) still linger, so expect more guidance
soon.
What to Watch
·
If you’re in a closely held company with international
family members: Life should get much simpler,
but double-check your structure ahead of the 2026 changeover.
·
If you’re in a multinational group: The compliance headache isn’t over, especially if you might
fit the new “foreign-controlled” carve-out.
·
If you claimed a Section 962 election (corporate rates for
individuals): Distributions from former Deemed
CFCs will follow the special rules, but unpaid earnings and profits may still
need careful tracking.
The Bottom Line
The return of section 958(b)(4) marks a big step toward
sanity for cross-border business owners. No more Deemed CFCs for most. The maze
of corporate and family attribution rules is (mostly) back where it belongs.
Large multinationals can expect some continued scrutiny, but for the vast
majority of U.S. taxpayers with international ties, the world is simpler, and that’s
a good thing.
Need International Tax Planning Advice?
Contact the Tax Lawyers at
Marini & Associates, P.A.
Sources:
1. https://www.taxnotes.com/tax-notes-today-federal/controlled-foreign-corporations-cfcs/faux-cfcs-and-restoration-prohibition-downward-attribution/2025/07/21/7srvwhttps://www.taxnotes.com/tax-notes-today-federal/controlled-foreign-corporations-cfcs/faux-cfcs-and-restoration-prohibition-downward-attribution/2025/07/21/7srvw
2. https://www.mayerbrown.com/en/insights/publications/2025/07/one-big-beautiful-bill-act-introduces-significant-domestic-and-international-tax-changes
3.
https://www.grantthornton.com/insights/alerts/tax/2025/flash/favorable-obbba-changes-for-multinationals
4.
https://news.bloombergtax.com/tax-management-international/repeal-of-the-repeal-cfc-downward-attribution-rules-are-revised
5.
https://insightplus.bakermckenzie.com/bm/tax/united-states-repeal-of-the-repeal-cfc-downward-attribution-rules-are-revised