BEAT — Base Erosion and Anti-Abuse Tax (Section 59A)
The Base Erosion and Anti-Abuse Tax (BEAT) is a minimum tax on large U.S. corporations that make deductible payments to foreign related parties — royalties, interest, management fees, service fees, and payments for depreciable property. Enacted by the Tax Cuts and Jobs Act in 2017 and codified at 26 U.S.C. § 59A, the BEAT prevents multinationals from reducing their U.S. tax bill to near-zero by routing deductible payments offshore. It works like an alternative minimum tax: a corporation calculates its regular U.S. income tax, then recalculates income by adding back the foreign-related-party deductions ("base erosion payments"), applies a 10.5% rate, and pays the higher of the two amounts. For banks and securities dealers, the rate is 11.5%. The BEAT applies only to corporations with average annual gross receipts of $500 million or more, which limits it to large multinationals, but for those companies the BEAT can add tens or hundreds of millions in annual tax.
Current Law (2026)
| Parameter | Value |
|---|---|
| Core statute | 26 U.S.C. § 59A |
| BEAT rate | 10.5% of modified taxable income (11.5% for banks and registered securities dealers) |
| Applicable taxpayer threshold | Average annual gross receipts ≥ $500 million over 3 prior taxable years |
| Base erosion percentage | Base erosion tax benefits ÷ total deductions; must be ≥3% (2% for banks/dealers) to be an "applicable taxpayer" |
| Base erosion payments | Deductible payments to foreign related parties: royalties, interest, fees for services, payments for depreciable property, reinsurance premiums |
| Excluded payments | Payments for cost of goods sold (COGS); services eligible for the cost method under § 482 at cost-plus-5%; ECI payments subject to U.S. withholding; qualified derivative payments |
| Modified taxable income | Regular taxable income recomputed by adding back base erosion tax benefits and a portion of NOL deductions |
| Credit offsets | Regular credits can reduce regular tax but have limited ability to reduce the BEAT; R&D credits reduce the BEAT; certain low-income housing, renewable energy, and investment credits are only 80% deductible against BEAT |
| Anti-inversion rule | Payments to surrogate foreign corporations (inverted companies) also treated as base erosion payments |
Legal Authority
- 26 U.S.C. § 59A(a) — Imposition: an "applicable taxpayer" owes BEAT equal to the excess (if any) of (1) 10.5% of modified taxable income over (2) regular tax liability reduced by credits
- 26 U.S.C. § 59A(b) — Base erosion minimum tax amount: the excess of 10.5% of modified taxable income over the taxpayer's regular tax liability (reduced by most tax credits, except R&D credits and a limited 80% allowance for renewable energy, low-income housing, and investment credits); banks and dealers pay 11.5%
- 26 U.S.C. § 59A(c) — Modified taxable income: regular taxable income computed without any deduction for base erosion payments (they are added back) and without the base-erosion-attributable portion of any NOL deduction
- 26 U.S.C. § 59A(d) — Base erosion payments defined: deductible amounts paid to foreign related parties, including royalties, interest, management fees, service fees, and payments for depreciable property; also includes reinsurance premiums to foreign affiliates and payments to inverted companies; excludes COGS, routine service costs at cost-plus-5%, and payments that are already subject to full U.S. withholding tax
- 26 U.S.C. § 59A(e) — Applicable taxpayer: a corporation (not a pass-through entity) with average annual gross receipts over the prior 3 years of at least $500 million, and a base erosion percentage of at least 3% (i.e., base erosion benefits are at least 3% of total allowable deductions)
- 26 U.S.C. § 59A(g) — Related party: owns (directly or indirectly) 25% or more of the taxpayer, or is owned 25% or more by the taxpayer, or shares 25%-or-more common ownership; includes certain treaty-related parties
- 26 U.S.C. § 59A(h) — Anti-inversion: extends BEAT treatment to payments made to "surrogate foreign corporations" (companies that completed inversions after November 9, 2017) to prevent post-inversion tax benefit stripping
How the BEAT Calculates Tax
The BEAT functions as a minimum tax on large multinationals. Here's the mechanics:
Step 1 — Calculate regular U.S. income tax (before BEAT). Say a U.S. corporation has $1 billion of U.S. taxable income and pays $210 million in regular corporate tax (21% rate). After credits, say regular tax is $180 million.
Step 2 — Add back base erosion payments to compute "modified taxable income." If the corporation paid $300 million in deductible royalties to its Irish parent, modified taxable income = $1 billion + $300 million = $1.3 billion.
Step 3 — Apply BEAT rate to modified taxable income: 10.5% × $1.3 billion = $136.5 million. Since $136.5 million < $180 million regular tax, no BEAT is owed. The BEAT only fires when 10.5% × modified taxable income exceeds regular tax.
Step 4 — If BEAT applies: say the corporation had credits that reduced regular tax to $50 million. Now 10.5% × $1.3 billion = $136.5 million > $50 million. The BEAT is $136.5 million − $50 million = $86.5 million additional tax.
The BEAT is most painful for corporations that:
- Have very large deductible payments to foreign affiliates (high numerator in the base erosion ratio)
- Benefit significantly from U.S. tax credits that reduce regular tax to low levels (widening the gap between regular tax and the BEAT floor)
What's Excluded from Base Erosion Payments
Not all payments to foreign related parties trigger BEAT:
Cost of goods sold (COGS): Payments embedded in the purchase price of inventory don't count as base erosion payments — they reduce gross income rather than creating a deduction from gross income. This means a manufacturer that buys components from a foreign affiliate at an inflated price doesn't face BEAT on those overcharges (though § 482 transfer pricing rules still apply).
Routine services at cost-plus-5%: If a corporation pays a foreign affiliate for services that qualify for the simplified cost method under § 482 (routine, low-value services like IT support or HR administration) at cost plus a 5% markup, those payments are excluded from BEAT. This incentivizes centralizing routine services at arm's-length prices.
ECI payments subject to withholding: Payments that are treated as effectively connected income subject to U.S. income taxation (and full 30% withholding) don't count as base erosion payments because they're already subject to U.S. tax.
Qualified derivative payments: Payments by registered dealers in notional principal contracts and similar financial derivatives are excluded to avoid disrupting legitimate financial market operations.
Credit Offset Limitations
A significant complexity of the BEAT involves how credits interact with the calculation. Regular tax credits (other than a few exceptions) reduce regular tax liability, which is the number BEAT is compared against. If credits bring regular tax down to near zero, BEAT will almost certainly apply.
The most valuable exception: research and development credits (under § 41) reduce both regular tax and the BEAT floor — they can be used against BEAT liability dollar-for-dollar. By contrast, renewable electricity production credits, low-income housing credits, and investment tax credits can only offset 80% of BEAT liability. This creates a perverse incentive: corporations with large clean energy or affordable housing investments may be "stranded" — unable to use those credits fully because BEAT prevents them from reducing tax below the 10.5% floor.
This limitation has drawn significant criticism from the renewable energy and affordable housing industries, and multiple legislative proposals have sought to allow full credit offsets against BEAT.
How It Affects You
If you're a U.S. multinational with a foreign IP holding company: If your foreign affiliate licenses intangibles back to your U.S. entity and you have $500M+ in average annual gross receipts, those royalties are almost certainly base erosion payments. The BEAT calculation: take your regular U.S. tax liability; also compute 10% of modified taxable income (taxable income adding back all deductible base erosion payments to foreign affiliates); pay whichever is higher. In many IP licensing structures, the deduction benefit from the royalty payment is now entirely offset by the BEAT minimum tax — making the offshore IP structure economically neutral or even costly compared to keeping IP in the U.S. Model the BEAT annually and evaluate whether restructuring (consolidating IP into a U.S. entity, repatriating IP under FDII incentives, using cost-sharing arrangements) produces better after-tax outcomes.
If you're a foreign company with a U.S. subsidiary: BEAT applies to deductible payments your U.S. subsidiary makes to any foreign related party — management fees, interest on intercompany loans, royalties, service charges, even cost-sharing payments. Every dollar of deductible related-party payment adds to your base erosion percentage, and if that percentage hits 3% of total deductible expenses (2% for banks), the BEAT calculation applies. Payments for certain services eligible under the cost-of-services method (routine services priced at cost plus 5%) do not count as base erosion payments — which is why many companies restructure inbound service charges to avoid BEAT exposure. Review your intercompany charge structure with a BEAT model before finalizing transfer pricing documentation.
If you're structuring clean energy or affordable housing tax equity investments: BEAT creates a pricing complication for large corporate tax equity investors. Most production tax credits (PTC) and investment tax credits (ITC) reduce regular tax liability — but they cannot offset BEAT liability (they're not "applicable tax credits" under § 59A). A bank or multinational with BEAT exposure may find that a wind farm tax credit investment is worth less than face value because the credit reduces regular tax below the BEAT floor, making the BEAT the binding constraint. Sophisticated investors will negotiate BEAT haircuts on tax credit pricing, reducing the developer's equity proceeds by the investor's expected BEAT impact. Model this before closing — the difference between 100 cents on the dollar and 90 cents for credits can materially change deal economics.
If you work in international tax compliance at a financial institution: Banks and registered securities dealers pay the slightly higher 11.5% BEAT rate (vs. 10.5% standard) and have high volumes of cross-border related-party transactions — intercompany funding, deposit interest, derivative payments, and fee arrangements — that must be tracked as potential base erosion payments. The BEAT also applies to treaty-reduced withholding — a payment that would be base erosion but for treaty exemption is still treated as a base erosion payment under § 59A(d)(4). Banks with significant foreign intercompany funding structures often have complex BEAT calculations requiring substantial coordination between treasury and tax departments.
State Variations
BEAT is exclusively a federal tax. States generally do not impose a parallel base erosion minimum tax, though some states may adjust their corporate income tax base for intercompany transactions through separate entity reporting requirements, addback statutes (which disallow deductions for certain related-party royalties and interest), or combined unitary reporting.
Pending Legislation
The Biden administration's 2021 proposals included increasing the BEAT rate to 15% and expanding covered payments. The Inflation Reduction Act of 2022 ultimately enacted a different minimum tax (the CAMT — 15% book income tax) rather than expanding BEAT, but BEAT remains in place alongside CAMT, potentially applying to the same corporations. The OECD's Pillar Two global minimum tax (15% effective rate) overlaps significantly with BEAT's purpose; Congress and Treasury have been working to coordinate the two regimes without double-taxing the same income twice.
Recent Developments
IRS Notice 2023-7 and subsequent guidance have clarified how the corporate alternative minimum tax (CAMT) under the Inflation Reduction Act interacts with the BEAT — specifically, whether both CAMT and BEAT can apply to the same corporation for the same year (short answer: yes, they can stack). Treasury finalized BEAT regulations in 2020 addressing qualified derivative payments, the COGS exclusion, and anti-abuse rules for restructurings designed to convert deductible payments into non-deductible amounts. The OECD Pillar Two income inclusion rule, effective in most major economies by 2024, has reduced the practical significance of BEAT for transactions in countries that have implemented the 15% minimum — though BEAT remains relevant for transactions with low-tax jurisdictions outside the Pillar Two framework.
- Trump administration pulls back from OECD Pillar Two — BEAT-Pillar Two coordination unresolved (2025): The Biden Treasury was developing guidance on how the BEAT and the OECD Pillar Two global minimum tax (15% effective rate, effective in ~140 countries) should interact to avoid double-taxation of the same income. The Trump Treasury under Secretary Scott Bessent (confirmed January 2025) has effectively withdrawn from OECD Pillar Two implementation, treating it as contrary to U.S. sovereignty and threatening retaliatory tariffs on countries that impose OECD-authorized domestic minimum taxes on U.S. companies. This leaves the BEAT-Pillar Two interaction guidance incomplete. U.S. multinationals operating in Pillar Two jurisdictions face potential double-count risk — paying BEAT in the U.S. on related-party payments and facing Pillar Two top-up taxes in the foreign jurisdiction if the combined effective rate falls below 15%.
- OBBBA extends TCJA — no BEAT rate changes (2025): The One Big Beautiful Bill Act extends and makes permanent TCJA individual provisions and adjusts certain corporate provisions, but does not change the BEAT rate (currently 10.5% standard, 11.5% for banks and securities dealers), the $500 million gross receipts threshold, or the base erosion percentage tests. The BEAT remains exactly as TCJA enacted it. Multinationals should note that OBBBA does propose modifications to the GILTI regime — increasing the GILTI rate — which affects the overall international tax calculus alongside BEAT.
- DOGE IRS Treasury International (2025): DOGE workforce reductions at Treasury's Office of Tax Policy have slowed the pipeline of guidance on BEAT technical issues — particularly coordination with CAMT and the treatment of certain structured finance transactions. IRS Large Business & International (LB&I) staffing cuts have reduced BEAT examination capacity. The practical result: fewer proactive BEAT audits but also slower published guidance on known open questions such as treatment of certain hybrid instruments and the COGS exclusion's application to intercompany transactions in complex supply chains.