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Form 1120L: U.S. Life Insurance Company Income Tax Return
IRS Form 1120-L is the U.S. Life Insurance Company Income Tax Return used to report income, gains, losses, deductions, and credits, and to figure the income tax liability of life insurance companies. Every domestic life insurance company and certain foreign corporations that would qualify as life insurance companies if they were U.S. corporations must file. Late filing penalty is 5% per month up to 25% of unpaid tax, with a minimum of $525 for returns due in 2026.
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IRS Form 1120L - U.S. Life Insurance Company Income Tax Return
IRS Form 1120-L is the U.S. Life Insurance Company Income Tax Return used to report income, gains, losses, deductions, and credits, and to figure the income tax liability of life insurance companies. Every domestic life insurance company and certain foreign corporations that would qualify as life insurance companies if they were U.S. corporations must file. Late filing penalty is 5% per month up to 25% of unpaid tax, with a minimum of $525 for returns due in 2026.
Risk Radar
Scan points- 1Late filing penalty: 5% per month up to 25% of unpaid tax.
- 2Not completing every entry space on the form and instead writing 'See Attached'.
- 3Failing to attach supporting statements in the required order (schedules alphabetical, forms numerical, then attachments).
- 4Omitting the corporation's name and EIN on each supporting statement or attachment.
- 5Not paying the full tax due by the return due date (excluding extensions).
Plain English
This form is how life insurance companies tell the IRS what they earned, spent, and owe in taxes. It collects all the company's financial details and calculates the final tax bill. The company must file it every year and pay any tax due by the deadline.
Submission Date
- Filing date: 2026-01-29 10:10:33
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use this form when reporting income, gains, losses, deductions, and credits, and figuring the income tax liability of a domestic life insurance company or a foreign corporation that would qualify as a life insurance company if it were a U.S. corporation.
- Do not use it when the entity is not a life insurance company, such as a regular corporation, partnership, or individual.
- Check Form 1120 instead when the corporation is not a life insurance company and does not meet the special rules for life insurers.
Form selector
Use this form or another form?
Corporation owes estimated tax penalty
Determines if penalty applies and calculates amount
✓ Confirm the corporation made estimated tax payments and compare to required annual payment
Corporation has general business credit carryforwards
Computes the allowable credit and any carryback/carryforward
✓ Verify that all credit-generating activities are documented and that Form 3800 is attached after Form 8941 in the assembly order
Corporation paid federal tax on fuels used in business
Claims credit for nontaxable uses of fuels
✓ Ensure the fuel use qualifies and that Form 4136 is attached after Form 4626 in the assembly order
Corporation is subject to corporate alternative minimum tax (CAMT)
Figures the tentative minimum tax and any CAMT liability
✓ Check if the corporation meets the exemption thresholds and attach Form 4626 after Schedule N (Form 1120) in the assembly order
Corporation has a small employer health insurance premium credit
Computes the credit for premiums paid for employee health coverage
✓ Confirm the corporation meets the definition of a small employer and attach Form 8941 after Form 965-B in the assembly order
Deadline or filing window
The filing deadline is the 15th day of the 3rd month after the end of the corporation's tax year. For a short tax year ending in June, the short year is treated as ending on June 30 and the due date is the 15th day of the 3rd month after that. If the due date falls on a weekend or legal holiday, the return is due the next business day. Extensions are not detailed in the source, but the instructions mention an extension of relief from additions to tax underpayments applicable to the corporate alternative minimum tax (CAMT).
Checklist
What you need before filling it out
Line 32c and 32e (direct deposit)
Bank routing number, account number, and account type · Corporation's bank account information
Line 31 (overpayment)
Computation of overpayment from line 30 and prior payments · Tax return worksheet or prior year return
Line 30 (tax due)
Total tax liability from line 28 minus credits and payments · Form 1120-L computation
Line 29 (penalty)
Completed Form 2220 if penalty is owed · Form 2220 instructions and worksheet
Assembling order (after page 6)
Schedule N (Form 1120), then Forms 4626, 4136, 8978, 965-B, 8941, 3800, 8283, 4255, then additional schedules and forms in alphabetical/numerical order · Instructions page 4-5
Address entry (Item A)
Corporation's principal business office street address or P.O. box · Business records
Supporting statements and attachments
Reconciliation of income per books with income per return, balance sheets, retained earnings reconciliation · Annual statement and accounting records
Schedule M-3 (Form 1120-L) vs. statement
If not filing Schedule M-3, a statement reconciling Form 1120-L with the annual statement is required · Instructions page 4
Before you submit
- 1Confirm the form revision is 2025 (20/25) and use the current instructions.
- 2Complete every applicable entry space on Form 1120-L; do not write 'See Attached'.
- 3Attach Schedule N (Form 1120), Form 4626, Form 4136, Form 8978, Form 965-B, Form 8941, Form 3800, Form 8283, Form 4255, additional schedules in alphabetical order, additional forms in numerical order, then supporting statements.
- 4Enter the corporation's name and EIN on each supporting statement or attachment.
- 5Sign and date the return (an authorized officer must sign).
- 6If tax is due, include full payment (check or electronic) with the return or pay electronically before the due date.
- 7If requesting a refund, complete lines 32b, 32c, and 32e with direct deposit information.
- 8If the corporation owes an estimated tax penalty, complete Form 2220 and enter the penalty on line 29.
- 9Verify the mailing address from the instructions based on the corporation's principal business location.
- 10Keep a copy of the return and all attachments for your records.
- 11If filing electronically, ensure all required scans are ready and follow IRS e-file procedures.
How to file this form
- 1Gather all financial records, including the annual statement used as the basis for computing taxable income.
- 2Complete Form 1120-L, including all applicable schedules (e.g., Schedule M-3 if required) and line items.
- 3Prepare supporting statements and reconciliations, attaching them in the order specified in the instructions.
- 4Sign and date the return with an authorized officer's signature.
- 5Make payment for any tax due by check or electronic payment, or set up direct deposit for a refund.
- 6Mail the return to the correct IRS address (based on principal business location) or file electronically through IRS e-file.
- 7Retain a copy of the return, all attachments, and proof of filing (e.g., certified mail receipt or e-file confirmation).
Known limitations
- 1Form 1120-L is only for life insurance companies; other types of corporations must use Form 1120 or other applicable forms.
- 2Mutual savings banks conducting life insurance business under section 594 are subject to an alternative tax and may have different filing requirements.
- 3Foreign corporations that do not qualify as life insurance companies if they were U.S. corporations are not required to file Form 1120-L.
- 4Organizations described in section 501(m)(1) that provide commercial-type life insurance must file, but other tax-exempt organizations generally do not use this form.
- 5Consolidated returns require additional supporting statements and reconciliations; the form is not a substitute for those statements.
Field map
Compact field-by-field guide
Entity Info
2 items
Full legal name of the corporation and its Employer Identification Number.
Current mailing address and date of incorporation.
Income
3 items
Total revenue from business operations before deducting costs.
Direct costs attributable to producing goods sold by the corporation.
Gross receipts minus cost of goods sold and returns/allowances.
Deductions
1 items
Sum of all business expenses including compensation, rent, interest, taxes, and depreciation.
Tax
2 items
Total income minus total deductions.
Tax calculated on taxable income using the applicable corporate tax rate, minus any credits.
Signatures
1 items
An authorized corporate officer must sign and date the return.
Almost done reviewing the fields?
Fillable formOpen in Editor->The current edition is the 2025 revision of Form 1120-L. The instructions direct filers to IRS.gov/Form1120L for the latest information after publication. New for this edition: direct deposit for refunds is now available, with fields added on lines 32c and 32e.
What changed or needs a fresh check
- Edition date — confirm the revision date on the form reads 2025 (20/25).
- Fee — no filing fee is stated in the official source; the form is for tax reporting, not a payment application.
- Mailing address — use the IRS address listed in the instructions based on the corporation's principal business location.
- Signature — an authorized officer must sign and date the return before mailing.
- Direct deposit — if a refund is requested, complete lines 32c and 32e with valid bank routing and account numbers.
- Attachments — attach all schedules and forms in the exact order specified on page 4 of the instructions.
Quick Facts
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After you file
- 1Retain a copy of the filed return and all attachments for at least 3 years after the due date or filing date.
- 2Monitor for IRS confirmation of receipt (e.g., e-file acknowledgment or cashed check).
- 3If a refund is expected, check for direct deposit within the typical processing time or watch for a paper check.
- 4If you receive a notice about penalties, send an explanation to the IRS (do not attach it to the original return).
- 5If you discover an error after filing, file an amended return using Form 1120-X (not covered in the source; verify on IRS.gov).
- 6Keep records of estimated tax payments and any correspondence with the IRS for future reference.
Sources
- SRCInstructions p.1 — direct deposit for refund now available; lines 32c and 32e added.
- SRCInstructions p.2 — purpose of Form 1120-L and who must file (domestic life insurance companies and certain foreign corporations).
- SRCInstructions p.4 — assembling return order and where to file based on principal business location.
- SRCInstructions p.5 — tax payments due by filing date (not including extensions); Form 2220 for penalty.
- SRCInstructions p.5 — interest and penalties: do not attach explanation when filing; send separately if notice received.
- SRCInstructions p.8 — address entry: use street address, not registered agent; foreign address format.
- SRCInstructions p.8 — consolidated returns: attach supporting statements with specific columns; do not use Form 1120-L as substitute.
- SRCForm PDF — direct deposit fields on lines 32c and 32e.
- SRCNot stated in official source — specific filing fee amount; verify on IRS.gov.
- SRCNot stated in official source — signature requirements beyond general officer signature; verify on IRS.gov.
Common confusion points
Where do I enter direct deposit information for a refund?
The direct deposit fields are on lines 32c and 32e of Form 1120-L
→ Look for the direct deposit section after line 32b; enter routing number and account number exactly as shown on a voided check
Do I need to attach Schedule M-3?
Not all filers are required; the instructions say corporations that do not file Schedule M-3 must attach a reconciliation statement
→ Check the instructions for Schedule M-3 filing requirements; if not required, prepare the alternative statement described on page 4
What if the corporation has a P.O. box but also a street address?
The instructions say if the street address is not the principal office, show the P.O. box number instead
→ Use the address where the corporation actually receives its mail; if mail goes to a P.O. box, enter that box number
Can I use the address of my registered agent in Delaware?
No, the instructions explicitly say not to use the registered agent's address for the state of incorporation
→ Enter the actual principal business office address, even if the corporation is incorporated in another state
What order should I assemble the return?
The instructions list a specific order: Schedule N (Form 1120) first, then Forms 4626, 4136, 8978, 965-B, 8941, 3800, 8283, 4255, then additional schedules and forms in alphabetical/numerical order
→ Follow the list on page 4-5 exactly; attach supporting statements last
Is it okay to write 'See Attached' instead of completing a line?
No, the instructions say do not enter 'See Attached' or 'Available Upon Request'
→ Complete every applicable entry space; if more space is needed, attach separate sheets with totals on the printed form
When is the tax payment due?
Generally, the corporation must pay any tax due in full no later than the due date for filing its tax return (not including extensions)
→ Check the due date for the tax year; if an extension is filed, payment is still due by the original due date
What if the corporation has a foreign address?
Include city, state or province, country, and foreign postal code; do not abbreviate the country name
→ Follow the country's practice for entering state/province and postal code; enter the address in the format used by that country
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Questions about IRS Form 1120L
What is IRS Form 1120L used for?
This form is how life insurance companies tell the IRS what they earned, spent, and owe in taxes. It collects all the company's financial details and calculates the final tax bill. The company must file it every year and pay any tax due by the deadline.
Who must file IRS Form 1120L?
Every domestic life insurance company and certain foreign corporations that would qualify as life insurance companies if they were U.S. corporations must file Form 1120-L. This also includes organizations described in section 501(m)(1) that provide commercial-type life insurance, and mutual savings banks conducting life insurance business under section 594.
What information does IRS Form 1120L require?
The form collects the corporation's income, gains, losses, deductions, and credits to compute its income tax liability. It includes additional schedules in alphabetical order, additional forms in numerical order, and supporting statements and attachments. Specific lines include line 30 for tax payments and line 29 for the underpayment penalty.
When is IRS Form 1120L due?
Generally, the return is due by the 15th day of the 3rd month after the end of the corporation's tax year. If the due date falls on a Saturday, Sunday, or legal holiday, the corporation can file on the next business day. For a short tax year ending in June, the short year is treated as ending on June 30 and must file by the 15th day of the 3rd month after that.
How do I complete IRS Form 1120L?
Complete every applicable entry space on Form 1120-L without entering 'See Attached' or 'Available Upon Request'. Attach separate sheets using the same size and format as the printed forms, arranged in alphabetical order for additional schedules, numerical order for additional forms, and then supporting statements. Enter the corporation's name and EIN on each attachment. The officer must sign and date the return, and the paid preparer must complete the preparer section. Pay any tax due in full no later than the due date (not including extensions).
What happens if IRS Form 1120L is filed incorrectly?
Failure to file by the due date may result in a penalty of 5% of the unpaid tax for each month or part of a month the return is late, up to a maximum of 25% of the unpaid tax. For returns required to be filed in 2026 that are over 60 days late, the minimum penalty is the smaller of the tax due or $525. Interest is also charged on taxes paid late.
Where do I enter direct deposit information for a refund?
The direct deposit fields are on lines 32c and 32e of Form 1120-L Look for the direct deposit section after line 32b; enter routing number and account number exactly as shown on a voided check
Do I need to attach Schedule M-3?
Not all filers are required; the instructions say corporations that do not file Schedule M-3 must attach a reconciliation statement Check the instructions for Schedule M-3 filing requirements; if not required, prepare the alternative statement described on page 4
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