IRS Moves to Simplify Foreign Currency Tax Rules

In 1991, the IRS handed us a blueprint for handling foreign currency inside Section 987. Then it sat on the shelf for three decades like a tax code time capsule. Fast forward to December 2024, Treasury finally rolled out final Section 987 regulations, complete with detailed daily calculations that sent plenty of multinational tax teams straight into the weeds. Now, in February 2026, Treasury and the IRS are tapping the brakes. Notice 2026-17, released February 25, 2026, signals proposed regulations that would make Section 987 a lot less of a daily math marathon. The goal is simple: simplify the computation of taxable income or loss and foreign currency gain or loss for qualified business units, or QBUs. After years of buildup, the government is saying, not so fast, maybe we can do this in a more practical way. So, what’s actually changing?

Back to the 1991 Playbook

The headline item is an election to use the “equity and basis pool method.” If that phrase sounds familiar, it should. It mirrors the approach from the 1991 proposed regulations, with one key tweak. Instead of daily netting of remittances, taxpayers would compute net remittances annually. One annual computation. Not daily. For tax departments that have been bracing for item-by-item, multi-step tracking under the December 2024 final regulations, that is a big deal. Under the pool method, taxpayers maintain:

• An equity pool in the QBU’s functional currency
• A basis pool in the owner’s functional currency

That structure replaces the more granular daily tracking model embedded in the 2024 final rules. Eligible taxpayers, generally those with a current rate election in effect, could opt in. Think about what that means operationally. Less daily data wrangling. Fewer system contortions. Less time reconciling numbers that shift every time exchange rates blink. Is it perfect? No. But compared to the 2024 framework, it feels like Treasury looked at the compliance burden and said, “Okay, maybe we overshot.”

Loss Rules Get a Trim

The notice also takes aim at some of the more painful loss provisions in the 2024 final regulations. Specifically, Treasury previews:

• A narrowing of the loss suspension rules
• Simplification of the loss to the extent of the gain rule
• Clarification of successor deferral QBU rules
• Simplification of consolidated recognition groupings

If you have ever explained suspended Section 987 losses to a CFO who just wanted to know why cash went out, but the tax benefit did not show up, you know this matters. Section 987 has always been about timing. When do gains and losses hit? When do they sit? The proposed changes suggest Treasury wants to limit the reach of the rules in ordinary course transactions. That phrase is doing a lot of work. It hints that the government recognizes that not every routine remittance should trigger a labyrinth of deferral mechanics.

Hedging and CFC Relief on the Horizon

There is also movement on hedging and controlled foreign corporations.

• First, the definition of a Section 987 hedging transaction would be expanded beyond the strict GAAP hedging requirement. For taxpayers who hedge by the book but do not always align perfectly with financial accounting treatment, that is meaningful flexibility.
• Second, and perhaps more strategically important, Treasury signals a future election for CFCs under Section 987(3). Under this election, controlled foreign corporations would not compute or recognize foreign currency gain or loss under Section 987(3), except in certain inbound transactions.

That is a significant shift.

Under the previewed approach, Sections 987(1) and (2) would still apply for computing taxable income, earnings, and profits. But remittance-driven Section 987(3) gain or loss recognition could be turned off, at least prospectively. There is a catch. Any unrecognized Section 987 gain or loss that arose before making the election would be recognized pro rata over 120 months. Ten years. Treasury is not letting old currency swings disappear into thin air. One important detail: taxpayers cannot yet rely on the CFC election. Future guidance is expected to permit reliance. By contrast, taxpayers may rely now on the equity and basis pool method and other proposed modifications for taxable years ending before the regulations are finalized, provided they apply the rules in full and consistently across their Section 987 electing group, and the 2024 final regulations otherwise apply. In other words, if you opt in, you go all in.

What Should Tax Teams Be Doing Now?

Comments on the notice are due by April 26, 2026. That gives multinationals a short window to weigh in. Practically, this is modeling season. How does the equity and basis pool method compare to the default method under the December 2024 final regulations? Does annual netting change your volatility profile? Does narrowing loss suspension free up deductions that were previously stuck? And for groups with significant CFC structures, how would a future Section 987(3) election affect inbound planning? Would it simplify earnings and profits tracking? Could it alter the repatriation strategy? If you are responsible for tax provision or ETR forecasting, this is not theoretical. Foreign currency gains and losses can swing numbers in a hurry. The broader signal is hard to ignore. Treasury finalized comprehensive regulations in December 2024. Just over a year later, it is already offering simplified elections and narrowing rules. That tells you something. The compliance burden was real. The feedback was loud. And the government appears willing to adjust.

Will this finally make Section 987 “simple”? Probably not. We are still talking about foreign currency, multiple functional currencies, remittances, pools, deferrals, and elections layered on elections. Nothing about that screams easy. But compared to daily netting gymnastics, an annual pool method may feel like common sense. For now, the smart move is to get out of the weeds, run the numbers, and decide whether the 1991 playbook deserves a comeback tour in your tax department. Because when it comes to foreign currency, if you are not modeling it, you are on the hook for whatever shows up.

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