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Official form guide
Form 1118-SL: 1118 (Schedule L)
IRS Form 1118-SL is used to report foreign tax redeterminations that occur in the current tax year and satisfy the taxpayer’s obligation to notify the IRS of foreign tax redeterminations related to prior years.
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IRS Form 1118-SL - 1118 (Schedule L)
IRS Form 1118-SL is used to report foreign tax redeterminations that occur in the current tax year and satisfy the taxpayer’s obligation to notify the IRS of foreign tax redeterminations related to prior years.
Risk Radar
Scan points- 1Ensure a separate “TOTAL” Schedule L is completed using code “TOTAL” to aggregate all amounts from Parts I, II, III, and V.
- 2Failing to complete individual Schedules L for every category of income required for Parts I, II, III, and V.
- 3Omitting the separate “TOTAL” Schedule L using code “TOTAL” that aggregates all amounts.
- 4Not ensuring that all information reported on Form 1118 is in English.
- 5Failing to state amounts in U.S. dollars unless otherwise specified on the form.
Plain English
This form reports changes to foreign income taxes that occurred after you filed your original return. Taxpayers use it to notify the IRS if redeterminations—changes in the amount of foreign taxes paid or accrued—affect their overall U.S. tax liability for current or past years.
Submission Date
- Filing date: 2025-12-09 15:10:47
- 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 any taxpayer has a foreign tax redetermination under section 905(c) that occurs in the current tax year.
- Do not use it when no foreign tax redetermination occurred, or if the U.S. tax liability is not changed by the redetermination (though filing Schedule L satisfies reporting requirements in that case).
- Check Form 7204 instead when obtaining the reference ID number for contested foreign income tax.
Deadline or filing window
Not stated in the official source.
Checklist
What you need before filling it out
Taxpayer must file Schedule L (Form 1118)
Proof of foreign tax redetermination under section 905(c) · Instructions p.1
Report increases in accrued or paid foreign taxes
Foreign income tax redeterminations resulting in an increase · Part I instructions
Report decreases in accrued or paid foreign taxes
Foreign income tax redeterminations resulting in a decrease · Part II instructions
Identify affected tax year
Tax years for which the U.S. tax liability is changed by a foreign tax redetermination · Instructions p.2
Report reference ID number for contested tax
Reference ID number reported on Form 7204 · Instructions p.3 / Column 14
Before you submit
- 1Confirm that every amount reported on Schedule L (Form 1118) is stated in U.S. dollars, unless otherwise specified.
- 2Ensure the exchange rate is calculated using a 'divide-by convention,' rounded to at least four places.
- 3Verify that a separate Schedule L is completed for each category of income covered in Parts I, II, III, and V.
- 4Check if an amended return must be filed because the foreign tax redetermination changed the U.S. tax liability.
- 5If reporting multiple payor entities for a relation back year, confirm that Schedule L has been expanded to include all required payor entities.
- 6On line c of the Schedule L (Form 1118), enter the country code corresponding to where the tax is paid.
- 7For any taxpayer with a foreign tax redetermination under section 905(c), ensure this schedule is submitted regardless of whether it changes the U.S. tax liability.
How to file this form
- 1Identify whether a foreign tax redetermination under section 905(c) occurred for the current tax year.
- 2Use Part I to report redeterminations that increased the amount of accrued or paid foreign taxes, or use Part II if the amounts decreased.
- 3If applicable, enter the reference ID number for contested foreign income tax using the number from Form 7204 in Column 14.
- 4File an amended return for any year where the U.S. tax liability changed due to the redetermination, and attach Schedule L (Form 1118) to the corresponding return.
Known limitations
- 1A taxpayer must complete and attach Schedule L (Form 1118) if they have a foreign tax redetermination under section 905(c).
- 2The filing of this schedule is required irrespective of whether the foreign tax redetermination changed the taxpayer’s U.S. tax liability.
- 3If the U.S. tax liability changes because of the foreign tax redetermination, the taxpayer must file an amended return for that year in addition to filing Schedule L (Form 1118) for the year the foreign tax redetermination occurs.
Field map
Compact field-by-field guide
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
Almost done reviewing the fields?
Fillable formOpen in Editor->The current edition of Schedule L (Form 1118) is dated December 2025. For the latest information about this form, users must visit IRS.gov/Form1118. The instructions note that previous column 9 of Part V was split into two new columns: Column 9 for tax refunded and Column 10 for additional tax paid.
What changed or needs a fresh check
- Edition date — confirm the revision date reads December 2025.
- Fee — Not stated in the official source.
- Mailing address — Not stated in the official source.
- Signature — Not stated in the official source.
Quick Facts
Downloads
After you file
- 1File an amended return for the tax year if the U.S. tax liability changed due to the foreign tax redetermination.
- 2Keep a copy of the completed Schedule L (Form 1118) and any related amended returns filed with the IRS.
- 3If filing multiple years, ensure that all affected years are reported on the expanded Schedule L format.
- 4Use the current edition of Form 1118-SL to prevent reporting errors.
Sources
- SRCInstructions p.1 — Any taxpayer that has a foreign tax redetermination under section 905(c) must complete this schedule.
- SRCInstructions p.1 — If the U.S. tax liability for any year changes by reason of the foreign tax redetermination, the taxpayer must file an amended return in addition to filing Schedule L.
- SRCInstructions p.2 — The exchange rate must be reported as the units of foreign currency that equal one U.S. dollar, rounded to at least four places.
- SRCInstructions p.2 — If the payor entity is not a corporation, enter in columns 2c and 2d the name and the EIN or reference ID number of the domestic or foreign corporation that owns the payor entity.
- SRCInstructions p.3 — Enter in column 12 the redetermined taxes deemed paid under section 960(b)(1), and enter in column 13 the section 960(b)(1) deemed paid taxes per the taxpayer’s original or previously amended return.
- SRCForm p.1 — The document is titled SCHEDULE L (Form 1118).
- SRCInstructions p.2 — Functional currency means the dollar, or in the case of a qualified business unit (QBU), the currency of the economic environment in which a significant part of such unit’s activities are conducted.
Common confusion points
Must I file Schedule L even if my U.S. tax liability did not change because of a foreign tax redetermination?
Yes, this schedule must be submitted regardless of whether the foreign tax redetermination changed the taxpayer’s U.S. tax liability.
How do I calculate and report exchange rates for this form?
All exchange rates must use a “divide-by convention,” meaning the rate is reported in terms of the amount by which the functional currency amount must be divided to reflect an equivalent amount of U.S. dollars, rounded to at least four places.
What do I enter if the payor entity is not a corporation?
Enter the name and EIN or reference ID number of the domestic or foreign corporation that owns the payor entity in columns 2c and 2d.
If an entity does not have an EIN, what should I write for its identification number?
The taxpayer must enter a reference ID number that uniquely identifies the payor entity or owner for which such number is requested.
Are there different types of taxes deemed paid that need separate reporting?
Yes, redetermined taxes deemed paid under section 960(b)(1) are entered in column 12, and those deemed paid under section 902 are entered in column 14.
What is the difference between filing Schedule L and amending my tax return?
Filing Schedule L reports the foreign tax redetermination; if the U.S. tax liability changes because of that redetermination, an amended return must also be filed.
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- If the U.S. tax liability changes, an amended return must be filed in addition to Schedule L (Form 1118).
Questions about IRS Form 1118-SL
What is IRS Form 1118-SL used for?
This form reports changes to foreign income taxes that occurred after you filed your original return. Taxpayers use it to notify the IRS if redeterminations—changes in the amount of foreign taxes paid or accrued—affect their overall U.S. tax liability for current or past years.
Who must file IRS Form 1118-SL?
Taxpayers must file Form 1118-SL when they need to report foreign tax redeterminations that affect their U.S. tax liability or income inclusions for current or prior years.
What information does IRS Form 1118-SL require?
The form collects information on five parts: Part I reports increases in accrued and paid foreign taxes, while Part II reports decreases. It also tracks changes to income inclusions in Part III, overall U.S. tax liability in Part IV, and contested credits in Part V.
How do I complete IRS Form 1118-SL?
Taxpayers must first complete individual Schedule Ls for Parts I, II, III, and V for every applicable category of income. Next, a separate "TOTAL" Schedule L is completed using code “TOTAL” to aggregate amounts from all other separate category Schedules Ls.
What happens if IRS Form 1118-SL is filed incorrectly?
The source does not specify penalties or consequences for incorrect completion of Form 1118-SL.
Must I file Schedule L even if my U.S. tax liability did not change because of a foreign tax redetermination?
Yes, this schedule must be submitted regardless of whether the foreign tax redetermination changed the taxpayer’s U.S. tax liability.
How do I calculate and report exchange rates for this form?
All exchange rates must use a “divide-by convention,” meaning the rate is reported in terms of the amount by which the functional currency amount must be divided to reflect an equivalent amount of U.S. dollars, rounded to at least four places.
What do I enter if the payor entity is not a corporation?
Enter the name and EIN or reference ID number of the domestic or foreign corporation that owns the payor entity in columns 2c and 2d.
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