However, simply filing the return doesn't guarantee qualification. A U.S. REIT must continuously satisfy a strict set of organisational, ownership, income, asset, and distribution requirements under U.S. tax law. An error in testing or reporting can have serious consequences.
This guide provides a detailed walkthrough for the 2026 filing season. We will cover eligibility checks, key schedules, step-by-step completion instructions, filing deadlines, and common mistakes, with a particular focus on issues relevant to Australian and other international owners.
Key Takeaways
- Form 1120-REIT is the U.S. federal income tax return for an eligible real estate investment trust; always verify you are using the correct 2026 form and instructions from the IRS.
- Confirm the REIT's income, asset, ownership, and distribution tests are met before preparing the return; the form is a reflection of year-long compliance, not a standalone task.
- Gather all financial statements, dividend records, shareholder data, compliance testing workpapers, and supporting forms before you begin the return.
- Determine if related filings like Forms 8612, 8875, 1099-DIV, or 1042/1042-S for foreign investors are required.
- For complex structures involving foreign ownership, taxable REIT subsidiaries (TRSs), or uncertain qualification, engaging a U.S. tax professional is critical.
How to Complete and File Form 1120-REIT in 2026
A successful filing is a systematic process. It starts with confirming eligibility and gathering data, moves through careful completion, and ends with a thorough review and documented submission.
Step 1: Confirm that Form 1120-REIT is the correct return
Before entering any figures, verify the fundamentals. Is the entity’s U.S. tax classification correct? Has it properly elected REIT status? A newly formed REIT typically makes its initial election on its first timely filed Form 1120-REIT.
Always download the latest version of the form and its instructions for the relevant tax year from the IRS website. For the 2026 filing season, use the finalised 2025 forms or any updated 2026 drafts once they become official.
Review the structure for elements that trigger additional filings, such as a taxable REIT subsidiary (TRS), foreign ownership, or exposure to prohibited transactions.
Step 2: Gather the financial and tax data
Accuracy depends on organised records. You will need to reconcile data from multiple sources before you can confidently populate the return. Key documents include:
- Financials: General ledger, trial balance, and audited financial statements.
- Property Records: Rent rolls, mortgage interest statements, depreciation schedules, and capital gains calculations.
- Expenses: A full breakdown of operating expenses and any related-party transactions.
- Distributions: Dividend declarations and proof of payment, including any distributions made after year-end that qualify for the current tax year.
- Compliance Workpapers: Records of quarterly asset tests, annual income tests, and shareholder ownership analysis.
Step 3: Complete the return and required schedules
With your reconciled data in hand, follow the official IRS instructions line by line. The process involves transferring your income, deductions, and credits to the appropriate sections of the form.
A critical component is Schedule A, the Dividends-Paid Deduction. Do not simply use the dividend figure from your financial statements. This deduction must be reconciled to your tax-basis calculations and align with shareholder reporting on Form 1099-DIV.
You must also determine which other schedules are required. These can include schedules for capital gains (Schedule D), undistributed income, deficiency dividends, foreign transactions, or TRS activities.
Step 4: Review, submit and retain evidence
A final review is your last line of defence against errors. Before you submit, confirm:
- All calculations, entity identifiers (such as the EIN), signatures, and attachments are correct
- Figures on Form 1120-REIT match related filings, including Forms 1099-DIV sent to shareholders
- You are using the current IRS filing method (for 2026, e-filing is mandatory for REITs filing 10 or more returns of any type)
After filing, retain a complete copy of the return, your submission confirmation, evidence of tax payment, and all supporting workpapers for the required retention period.
For Australian businesses navigating these cross-border compliance obligations, the coordination of accounting and U.S. tax can become complex. The team at VJM Global provides professional preparation and review support to ensure all U.S. federal and state filing requirements are met accurately and on time.
When Should You File Form 1120-REIT?
The filing deadline for Form 1120-REIT depends on the REIT’s tax year.
- Calendar-Year REITs: For a tax year ending December 31, 2025, the deadline to file Form 1120-REIT is April 15, 2026.
- Fiscal-Year REITs: Due on the 15th day of the fourth month after year-end. If the year ends on June 30, the deadline is the 15th day of the third month.
If you cannot file by the due date, request an automatic six-month extension on Form 7004. For a calendar-year filer, that moves the filing deadline to October 15, 2026.
An extension to file is not an extension to pay. Estimate and pay any tax liability by the original April 15 deadline to avoid penalties and interest.
Other deadlines sit outside the main 1120-REIT filing:
- Quarterly estimated tax payments covering expected liability during the year
- Form 8612 for excise tax on undistributed income
- Forms 1099-DIV for shareholder distributions
- Forms 1042 and 1042-S for reporting payments to foreign shareholders
What You Need Before Filing Form 1120-REIT
Preparation is everything. Assembling your information and documents well in advance prevents last-minute scrambling and reduces the risk of errors. Here is a checklist of what you should have ready.
Entity and tax profile
- Legal name, Employer Identification Number (EIN), and address
- Incorporation or formation documents
- Tax year and accounting method details
- Copy of the prior-year tax return and any IRS notices received
- Details of the REIT election and any TRS elections (Form 8875)
Financial and property records
- Trial balance and reconciled financial statements
- Detailed rent rolls and property acquisition/disposition records
- Financing documents and depreciation schedules
- Records of capital expenditures and bad debts
- Data on all related-party transactions
Ownership and shareholder information
- Shareholder registers and ownership percentages
- Documentation for the 100-shareholder and 5/50 tests
- Copies of shareholder demand letters and beneficial ownership certifications
- Forms W-9 (for U.S. persons) and W-8 (for foreign persons) from shareholders
Distribution and compliance workpapers
- Board resolutions declaring dividends and records of payment dates
- Analysis supporting return-of-capital vs. dividend characterisations
- Completed quarterly asset tests and annual income tests
- Calculations for the required annual distribution
Related forms and professional review
For international investors, withholding on payments to foreign persons under FIRPTA (Foreign Investment in Real Property Tax Act) is a major risk area. According to IRS FIRPTA guidance, dispositions of U.S. real property interests by foreign persons can trigger a 15% withholding tax on the amount realised.
Escalate issues involving foreign investment, FIRPTA, tiered ownership structures, or uncertain tax positions to a qualified U.S. tax professional.
Key REIT Tests and Filing Variables That Affect the Return
The numbers on Form 1120-REIT are the final output of a year's worth of compliance tracking. A filing review should be able to trace every major figure back to the tests and calculations performed during the year.
Income tests
To qualify as a REIT, an entity must meet two annual gross income tests:
- 75% Test: At least 75% of gross income must come from real estate sources, such as rents from real property and interest on mortgages secured by real property.
- 95% Test: At least 95% of gross income must come from those same real estate sources, plus other passive sources like dividends and interest.
Income from "impermissible tenant services" or certain related-party tenants can be non-qualifying and jeopardise these tests.
Asset tests
The REIT must meet these tests at the close of each quarter. Primary requirements include:
- At least 75% of the REIT's total asset value must consist of real estate assets, cash, and government securities.
- No more than 25% of its assets can be in securities outside that basket.
- TRS securities cannot exceed 25% of total assets for tax years beginning after 31 December 2025 (raised from 20%), per the U.S. Code.
Ownership and organisational requirements
A REIT must be structured as a U.S. corporation, trust, or association and be managed by directors or trustees. It must also meet two key ownership tests (though these are waived for the first year of election):
- 100-Shareholder Test: It must have at least 100 beneficial owners.
- 5/50 Test: No more than 50% of its shares can be owned, directly or indirectly, by five or fewer individuals during the last half of the tax year.
Distribution and dividends-paid deduction
A REIT can deduct qualifying dividends paid to shareholders, which is how it avoids corporate income tax. To qualify, it must distribute at least 90% of its REIT taxable income. Undistributed income can trigger entity-level income tax and a separate 4% excise tax, reported on Form 8612.
Common Mistakes, Troubleshooting Issues and Alternatives
Most filing errors stem from incomplete records, incorrect REIT testing, or using outdated information. Spotting these patterns early keeps the return cleaner and reduces rework later.
Common mistakes
- Filing Form 1120-REIT without first confirming the entity's qualification status for the year.
- Forgetting to perform and document quarterly asset tests or annual shareholder ownership analysis.
- Using book income or dividend figures without reconciling them to tax-basis calculations and the dividends-paid deduction.
- Omitting required attachments, such as information on a TRS or documentation for foreign owners.
- Using an outdated form or mailing address instead of checking the current 2025 REIT instructions.
Troubleshooting checks
- If taxable income doesn't reconcile: Trace the figures back from the return through your workpapers to the trial balance, ensuring all adjustments are accounted for.
- If an income or asset test appears to fail: Isolate the income stream or asset, verify its classification and valuation, and check whether relief provisions apply. Seek professional advice before filing.
- If the return is late or rejected: Research the correct IRS procedure for penalty abatement, amended returns, or late payments. Do not simply submit a duplicate filing.
Alternatives and escalation points
Self-preparation is not always suitable for complex REIT filings. Escalate to a tax professional when you need:
- A technical tax review before you file
- Help with an amended return
- Guidance on a deficiency dividend procedure
An extension gives you more time to file, but not more time to pay.
Conclusion
A successful 2026 Form 1120-REIT filing rests on year-long record-keeping and proactive compliance. It starts with confirming REIT status and ends with a return that accurately reflects your operations.
The most severe errors often involve:
- Failing the crucial qualification tests
- Taking an unsupported dividends-paid deduction
- Missing related forms for foreign shareholders or undistributed income
For REITs with Australian or other international owners, those layers of complexity multiply.
Always verify your process against the latest IRS guidance. When your structure involves foreign shareholders, taxable REIT subsidiaries, or complex property transactions, coordinated accounting and tax support protects your investment and keeps the filing compliant.
Frequently Asked Questions
What is a 1120 REIT?
Form 1120-REIT is the specific U.S. federal income tax return used by a qualifying real estate investment trust to report its income, deductions, and tax liability. An entity must meet strict tests to be eligible to file this form, and you should always use the current IRS instructions.
What is a REIT for tax purposes?
For U.S. tax purposes, a REIT is an entity that primarily owns and operates income-producing real estate and meets specific requirements under the Internal Revenue Code. If it distributes most of its taxable income as dividends, it can deduct those dividends, reducing its corporate-level tax.
How do you form a REIT?
Forming a REIT involves creating a U.S. corporate entity, ensuring its governance and ownership structure meet legal requirements, and acquiring a portfolio of qualifying assets. The entity makes a formal election to be taxed as a REIT on its first timely filed Form 1120-REIT.
How can a REIT avoid being taxed?
A REIT can significantly reduce or eliminate its U.S. corporate-level income tax by distributing at least 90% of its taxable income to shareholders. However, a REIT can still owe tax on undistributed income, prohibited transactions, or other specific items.
Where do dividends paid go on 1120?
On Form 1120-REIT, qualifying dividends are factored into the "dividends-paid deduction" on Schedule A. This amount must be carefully reconciled with the REIT's taxable income calculations, distribution records, and shareholder reporting on Form 1099-DIV.
Where do I mail a form to the IRS?
You must always check the official instructions for the current version of Form 1120-REIT to find the correct mailing address or electronic filing method. Submission details can change annually and may vary based on whether a payment is included.
