IRS Form 8993 Guide: Section 250 Deduction for FDII & GILTI

Introduction – What Is Form 8993?

IRS Form 8993, titled Section 250 Deduction for Foreign-Derived Intangible Income (FDII) and Global Intangible Low-Taxed Income (GILTI), is a corporate tax schedule administered by the Internal Revenue Service (IRS) and the U.S. Department of the Treasury. It was introduced under the Tax Cuts and Jobs Act of 2017 (TCJA) to enforce Internal Revenue Code (IRC) Section 250.

This form is used primarily by domestic C corporations to calculate special tax deductions that reduce the effective tax rate on two types of cross-border income: earnings derived from exporting goods and services to foreign markets (FDII), and foreign subsidiary income subject to the GILTI rules under Section 951A.

Purpose of the Form – Why Does Form 8993 Exist?

When Congress revamped the international tax system under the TCJA, it created a dual approach to international corporate earnings. On one hand, it enacted GILTI to tax foreign subsidiary profits that exceed a routine return on tangible assets. On the other hand, it created FDII to encourage companies to keep intellectual property, manufacturing plants, and high-value service jobs inside the United States rather than moving them offshore.

IRC Section 250 provides the tax incentives that make both rules function. It provides a statutory deduction that lowers the effective corporate tax rate on foreign-derived export profits and foreign subsidiary earnings below the standard 21 percent corporate rate. Form 8993 serves as the calculation engine that measures a corporation’s export income, determines its deemed return on physical assets, applies statutory deduction percentages, and reconciles any overall taxable income limitations.

Who Needs to File This Form?

You must file Form 8993 if your business is eligible for and claims a deduction under Section 250. Qualifying filers include:

• Domestic C Corporations with Export Income: U.S. corporations that sell, lease, or license property to foreign persons for foreign use, or provide services to persons located outside the United States, generating Foreign-Derived Deduction Eligible Income (FDDEI).
• Domestic C Corporations with GILTI: U.S. corporate shareholders that include Global Intangible Low-Taxed Income from Form 8992 in gross income.
• Section 962 Electing Individuals: Individual U.S. Shareholders of Controlled Foreign Corporations (CFCs) who make an annual election under IRC Section 962 to be taxed at corporate rates, allowing them to claim the Section 250 deduction on their GILTI inclusion.

Who Is Exempt / Not Required to File?

Many businesses engaged in international trade do not qualify for the Section 250 deduction. You are exempt or not eligible to file Form 8993 under the following circumstances:

• Pass-Through Entities: S corporations, partnerships, and LLCs taxed as partnerships cannot claim the Section 250 deduction at the entity level (though partnerships pass relevant export and foreign data to partners on Schedules K-2 and K-3).
• Excluded Corporate Entities: Regulated Investment Companies (RICs/mutual funds) and Real Estate Investment Trusts (REITs) are statutorily barred from claiming Section 250 deductions.
• Pure Domestic Sales: Corporations that sell goods and services exclusively to domestic customers and have no foreign subsidiaries.
• Non-Electing Individuals: Individual taxpayers, trusts, and estates that do not execute a Section 962 election cannot claim Section 250 deductions.

When to File Form 8993

Form 8993 is an annual tax schedule attached directly to your primary federal income tax return (Form 1120 for domestic corporations or Form 1040 for individuals making a Section 962 election).

The filing deadlines match your standard annual income tax return due dates, including approved extensions:

• Calendar-Year C Corporations: Typically April 15 (or October 15 if a six-month extension is requested on Form 7004).
• Fiscal-Year C Corporations: The 15th day of the fourth month following the close of the corporation’s fiscal tax year (plus standard extensions).

Where and How to File

Form 8993 is not a standalone return; it must be submitted as an attachment to your primary federal income tax return.

Corporate taxpayers claim the resulting deduction on Form 1120, Line 29b (Special Deductions) and Schedule C. Most corporations file Form 8993 electronically through the IRS Modernized e-File (MeF) system. If filing a physical paper return under an approved electronic filing waiver, assemble Form 8993 directly behind your primary Form 1120 schedules, and mail the complete packet to the designated IRS address as per instructions for corporate returns.

Step-by-Step Instructions to Fill Form 8993

Form 8993 is organized into four sequential parts that establish your income base, isolate export earnings, calculate foreign-derived intangible profit, and compute your final allowable deduction.

Part-by-Part Section Breakdown

Part & Section	Form Focus	Key Filing Directions
Part I (Lines 1–8)	Deduction Eligible Income (DEI)	Start with gross corporate income. Exclude Subpart F income, GILTI, financial services income, dividends from CFCs, and domestic oil/gas extraction income to find DEI. Subtract your Deemed Tangible Income Return (10% of domestic physical assets / QBAI) to determine Deemed Intangible Income (DII).
Part II (Lines 9–19)	Foreign-Derived DEI (FDDEI)	Report gross receipts from property sold to foreign persons for foreign use and services provided to persons located outside the U.S. Deduct properly allocable cost of goods sold and operating expenses under Section 861 rules to calculate Net FDDEI.
Part III (Lines 20–22)	FDII Computation	Calculate your Foreign-Derived Ratio by dividing Net FDDEI (Part II) by total DEI (Part I). Multiply this ratio by Deemed Intangible Income (Part I) to determine your total Foreign-Derived Intangible Income (FDII).
Part IV (Lines 23–28)	Section 250 Deduction	Apply the statutory deduction percentage to FDII. Add your GILTI inclusion (from Form 8992) plus Section 78 gross-up, and apply the statutory GILTI deduction percentage. Apply the taxable income limitation if total deductions exceed corporate income.

Required Documents and Information Needed Before Filling

Because the Section 250 deduction requires detailed accounting and substantiation, assemble the following records before preparing Form 8993:

• Foreign Use Substantiation Records: Export bills of lading, customs clearance documents, shipping invoices, and contracts proving that sold goods were delivered to foreign persons for use outside the United States.
• Foreign Service Agreements: Written client agreements, statements of work, and billing records proving that services were performed for beneficiaries located outside the United States.
• Domestic QBAI Depreciation Ledgers: Fixed asset ledgers showing the adjusted basis of domestic tangible depreciable property (machinery, equipment, factories) determined using the Alternative Depreciation System (ADS).
• Expense Allocation Workpapers: Detailed cost accounting records apportioning R&D, interest, and general administrative expenses between domestic and foreign-derived income under Treasury Regulation Section 1.861-8.
• Form 8992 & Form 5471: Your completed GILTI calculation schedules to supply figures for Part IV.

Common Mistakes to Avoid

Claiming Section 250 deductions without proper documentation frequently triggers IRS audit adjustments. Watch out for these common errors:

• Lacking Foreign Use Documentation: Claiming the FDII deduction on sales to foreign buyers without maintaining the specific documentary substantiation required by Treasury regulations (such as customs records or transportation documents).
• Using Standard MACRS for Domestic QBAI: Calculating your domestic tangible asset basis using domestic MACRS depreciation rather than the straight-line Alternative Depreciation System (ADS).
• Ignoring the Taxable Income Limitation: Failing to apply the limitation in Part IV. If your corporation’s taxable income (before Section 250) is less than the sum of its FDII and GILTI, the allowable deductions must be reduced proportionally.
• Improper Expense Allocation: Failing to allocate domestic overhead and research expenses against gross FDDEI. Omitting allocable expenses artificially inflates net foreign income, leading to audit penalties.
• Attempting to Claim as an S Corporation: Pass-through businesses attempting to take the deduction directly. Section 250 is restricted to domestic C corporations and Section 962 electing individuals.

Penalties for Non-Filing or Errors

Form 8993 is a tax deduction schedule, so failing to file it simply forfeits valuable tax savings. However, claiming an improper or unverified deduction carries substantial penalties:

• Accuracy-Related Penalties (IRC Section 6662): If the IRS audits your return and disallows an unsubstantiated FDII or GILTI deduction, the resulting tax underpayment is subject to a mandatory 20 percent accuracy-related penalty.
• Corporate Tax Deficiencies: Disallowing a Section 250 deduction creates an immediate corporate tax balance due, complete with compounding daily interest under Section 6601.
• Failure-to-Pay Penalties: Late payment of corporate income taxes triggers penalties under Section 6651 (0.5 percent per month, up to 25 percent) on the unpaid balance.

Related Forms and Schedules

Form 8993 coordinates with several major corporate and international tax schedules:

• Form 1120: U.S. Corporation Income Tax Return (specifically Line 29b and Schedule C).
• Form 8992: U.S. Shareholder Calculation of Global Intangible Low-Taxed Income (GILTI) (the source for GILTI amounts entered in Part IV).
• Form 1118: Foreign Tax Credit—Corporations (specifically the Section 951A and foreign branch income baskets).
• Form 5471: Information Return of U.S. Persons With Respect to Certain Foreign Corporations.
• Form 4562: Depreciation and Amortization (used to track ADS asset basis for QBAI).

Frequently Asked Questions

What is Foreign-Derived Intangible Income (FDII)?

FDII is the portion of a domestic C corporation’s income that is deemed to come from intangible assets (like patents, technology, and brand value) and is earned by selling goods or providing services to foreign customers for use outside the United States.

What effective tax rates are achieved using Form 8993?

Under statutory rates for tax years beginning before 2026, the 37.5 percent FDII deduction results in an effective corporate tax rate of 13.125 percent, while the 50 percent GILTI deduction results in an effective tax rate of 10.5 percent. For tax years beginning after 2025, statutory deduction percentages decrease (to 21.875 percent for FDII and 37.5 percent for GILTI), resulting in effective rates of 16.406 percent and 13.125 percent, respectively.

Can an LLC or individual claim the Section 250 deduction?

Generally, no. The deduction is reserved for domestic C corporations. However, an individual who owns an interest in a CFC can make an election under IRC Section 962 to be taxed at corporate rates, which unlocks the Section 250 deduction for GILTI.

What counts as “foreign use” for FDII?

Property is for foreign use if it is sold, leased, or licensed to an unrelated foreign person and will be used, consumed, or disposed of outside the United States, as supported by transportation documents, customs clearance, or written customer certifications.

How does domestic physical property affect the FDII deduction?

Under Section 250, a company is presumed to earn a routine 10 percent return on its domestic tangible depreciable property (QBAI). This routine return is subtracted from deduction-eligible income, meaning companies with fewer physical assets and more intellectual property receive a higher FDII deduction.

What happens if our corporation has a Net Operating Loss (NOL)?

If your corporation has an overall taxable loss or if taxable income is zero, the taxable income limitation in Part IV reduces your allowable Section 250 deduction to zero. The unused deduction cannot be carried forward to future tax years.

Conclusion – Key Takeaways Summarized

IRS Form 8993 is a powerful tax planning and compliance schedule that rewards domestic C corporations for exporting American goods and services while mitigating the impact of foreign subsidiary taxes under GILTI. By claiming allowable Section 250 deductions, businesses can significantly reduce their effective federal tax rate.

To secure your deductions and withstand IRS review, maintain strict documentation proving the foreign use of exported goods and services, track domestic tangible property under the Alternative Depreciation System, monitor statutory rate changes, and attach Form 8993 directly to your corporate Form 1120.