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Supplemental Alternative Documentation of Income (for use when other income documentation is not available), page 1
Moderate · 46/100Form Complexity Index

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What this form asks for

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The Supplemental Alternative Documentation of Income form is a self-certification document used to report adjusted gross income (AGI) and pay frequency when standard income proof (such as pay stubs or tax returns) cannot be provided. It captures borrower identification details and income source information, and may also include spouse income if required for an IDR plan request. The form is important because it allows a loan servicer (MOHELA) to evaluate repayment plan eligibility and calculate payments when traditional documentation is unavailable. Submitting accurate information and signatures is required to process the request and avoid delays.
Fillable fields34
Pages1
Sections8
Questions that depend on earlier answers14
Form Complexity IndexModerate, 46/100

The AI checks your answers before you download

14 checks built for this form, so a wrong date or a missing answer is caught before anyone else sees it.

Borrower First and Last Name Required and Character Validation

Verify the borrower’s first and last name fields are not blank and contain only valid name characters (letters, spaces, hyphens, apostrophes) with reasonable length limits. This ensures the submission can be matched to the correct borrower record and prevents downstream system errors caused by invalid characters. If validation fails, the form should be rejected or routed for manual review with a request to correct the name fields.

Account Number Presence and Format Validation

Confirm the account number is provided and matches the expected servicer format (e.g., numeric-only or specific alphanumeric pattern) and length constraints. This is critical for associating the income documentation with the correct loan account and avoiding misapplied updates. If the account number is missing or malformed, the submission should be flagged as incomplete and not processed until corrected.

SSN Required and Valid SSN Format Check

Validate that the SSN is present and follows a valid SSN format (XXX-XX-XXXX or 9 digits), and reject known invalid patterns (e.g., all zeros in any group, 000-00-0000). Accurate SSN capture is essential for identity verification and correct account matching. If the SSN fails validation, the form should be rejected or held for manual verification.

Mutual Exclusivity: 'No Taxable Income' vs AGI/Pay Amount

If the 'No taxable income' box is selected, ensure the AGI and any pay-per-period amount fields are blank or zero, and no pay frequency is selected. Conversely, if 'No taxable income' is not selected, require a positive AGI or pay amount. This prevents contradictory income declarations that could lead to incorrect repayment calculations. If inconsistent, the submission should be returned for clarification.

AGI Amount Numeric and Range Validation (Borrower and Spouse)

Check that AGI entries are numeric currency values (allowing commas and up to two decimals) and fall within reasonable bounds (e.g., not negative, not unrealistically large). This ensures the income figure can be used in calculations and reduces the risk of data entry errors (extra zeros, misplaced decimals). If invalid, the system should block processing and request corrected income amounts.

Pay Per Period Amount Numeric and Consistency with Frequency

When a pay-per-period amount is provided, validate it is numeric, non-negative, and includes at most two decimal places, and require a pay frequency selection. This is necessary to interpret the periodic income correctly and convert it to an annualized value if needed. If the amount is present without a frequency (or vice versa), the submission should be flagged as incomplete.

And 8 more checks
  • Pay Frequency Selection Validation (Single Choice + 'Other' Requirement)
  • Income Source Name Required When Income Reported
  • Income Source Address Completeness (Street, City, State, ZIP)
  • Spouse Section Completion Conditional on Spouse Signature/Indication
  • Borrower Signature Required and Non-Blank Validation
  • Signature Date Required and Valid Date Format
  • Signature Date Logical Checks (Not in the Future; Spouse vs Borrower)
  • Required Fields Completeness Based on Income Reporting Path

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How to Fill Out Supplemental Alternative Documentation of Income Online for Free in 2026

What the AI walks you through.

  1. Confirm you should use this form (only if you cannot provide pay stubs or tax documents) and gather your income details and income source address information.
  2. Complete the Borrower Identification section: first name, last name, account number, and SSN.
  3. Fill out Section 1 (Borrower Income): enter your adjusted gross income (AGI), indicate whether the amount is annual or pay-per-period, select your pay frequency, and provide the name and full address of the income source.
  4. If applicable (only if your IDR request required it), complete Section 2 (Spouse’s Income) with spouse AGI, annual or pay-per-period selection, pay frequency, and spouse income source name and address.
  5. Review the form for completeness and accuracy; attach additional income source details if you have more than one income source.
  6. Sign and date the form (borrower signature required; spouse signature required if Section 2 is completed).
  7. Submit the completed form through the online upload portal (MOHELA secure upload under Repayment Plan) or send via fax/mail using the provided contact information.

Common Mistakes in Completing Supplemental Alternative Documentation of Income

The ones the AI is built to catch.

Using this form when pay stubs or tax documents are available
Many borrowers submit this supplemental form even though they can provide pay stubs or tax documents, often because they think “more paperwork is better.” This can slow processing or lead to a request to resubmit using the preferred documentation. Only use this form when other income documentation is not available, and confirm you are not also submitting standard income documents unless instructed.
Illegible handwriting or not using blue/black ink
Applicants frequently write too lightly, use pencil, or use colors that do not scan well, which makes names, SSNs, and dollar amounts unreadable. Illegible entries can cause data entry errors, mismatched records, and processing delays. Print clearly in blue or black ink and consider completing electronically if allowed, then review the scanned/photographed copy for readability before submitting.
Missing borrower identifiers (Account Number and/or SSN)
A common issue is leaving the Account Number or SSN blank, transposing digits, or providing only one identifier. Without accurate identifiers, the servicer may be unable to match the form to the correct account, delaying or preventing processing. Copy these numbers directly from your account portal or official documents and double-check every digit before submission.
Entering net pay instead of adjusted gross income (AGI) / pre-tax income
People often report take-home pay because it’s what they see deposited, but the form asks for income before taxes are taken out (AGI/pre-tax). Reporting net pay can understate income and may result in incorrect repayment calculations or follow-up requests for clarification. Use your AGI if known, or otherwise provide gross income before deductions and ensure it matches the “Income before taxes are taken out” instruction.
Not specifying whether the amount is Annual or Pay Per Period
Borrowers sometimes write a number in the income box but do not clearly indicate whether it is an annual amount or a per-paycheck amount. This can lead to major miscalculations (e.g., treating a monthly amount as annual) and incorrect payment amounts. Clearly select “Annual” or “Pay Per Period” as intended and ensure the number you enter matches that selection.
Pay frequency not selected or inconsistent with the amount provided
It’s common to forget to check a pay frequency box (weekly, bi-weekly, semi-monthly, monthly, other) or to select one that doesn’t match the income figure entered. Missing or inconsistent frequency information can trigger processing delays or incorrect annualization of income. Always check exactly one frequency option and confirm it aligns with how you calculated the “Pay Per Period” amount.
Selecting multiple pay frequency options or leaving 'Other' blank
Some applicants check more than one frequency (e.g., bi-weekly and monthly) or check “Other” without writing what it is. This creates ambiguity and often results in the form being rejected or needing manual follow-up. Choose only one frequency and, if “Other” applies, write a clear description (e.g., “quarterly,” “irregular,” “seasonal”).
Incomplete income source details (name/address/city-state-zip)
Applicants frequently leave the income source name or address fields partially blank, especially the city/state/ZIP line. Missing employer/income source details can prevent verification and may lead to requests for additional documentation. Provide the full legal name of the income source and a complete mailing address including city, state, and ZIP.
Not attaching additional income source information when required
The instructions require attaching details for additional income sources, but borrowers often report only their primary job and omit side income, multiple employers, or other sources. Omissions can lead to inaccurate repayment determinations and later corrections that change the payment amount. If you have more than one income source, attach a separate page listing each source’s name, address, and income information.
Completing spouse income section when it doesn’t apply (or skipping it when it does)
Section 2 is only required if Section 4C was completed on the Income-Driven Repayment Plan Request, but many people misunderstand and either fill it out unnecessarily or leave it blank when required. This can cause delays, incorrect household income calculations, or requests for resubmission. Confirm whether you completed Section 4C on the IDR request and complete Section 2 only if that condition applies.
Missing required signatures and dates (borrower and/or spouse)
A very common rejection reason is a missing borrower signature, missing date, or missing spouse signature/date when Section 2 is completed. Unsigned or undated certifications are typically considered incomplete and cannot be processed. Sign and date in all required places, and ensure the spouse signs and dates if you completed the spouse income section.

Frequently Asked Questions About Supplemental Alternative Documentation of Income

 

Is it really free for 7 days?
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This plan is for your Supplemental Alternative Documentation of Income: your own AI agent fills it as often as 5 times a month. To fill other forms and upload your own, choose a Professional plan from your account.
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How does the AI fill out Supplemental Alternative Documentation of Income?
You answer a few questions in plain words, or upload a document you already have. The AI reads what you give it and puts each answer into the right field of Supplemental Alternative Documentation of Income, on every page, in seconds. It checks the answers against the form's own rules, and you review and change anything before you download, print or sign.
What happens to my information?
It is encrypted in transit and at rest, and it is never used to train AI.
How complex is Supplemental Alternative Documentation of Income to fill out?
Supplemental Alternative Documentation of Income has a Form Complexity Index of 46 out of 100, in the moderate tier: 34 fillable fields across 1 page. Instafill.ai's AI fills it in under a minute, with every field there for you to review before you download.
What is the “Supplemental Alternative Documentation of Income” form used for?
This form is used to document income when you cannot provide standard income documentation like pay stubs or tax documents. It helps MOHELA verify income for repayment-related requests.
Who should fill out this form?
Borrowers who need to provide income information but do not have pay stubs or tax documents available should complete it. If you can provide pay stubs or tax documents, you generally should not use this form.
When should I NOT complete this form?
Do not complete this form if you are providing pay stubs or tax documents as your income documentation. Use those standard documents instead.
What borrower identification information is required at the top of the form?
You must provide your first and last name, account number, and Social Security number (SSN). The form also instructs you to print legibly in blue or black ink.
What income amount am I supposed to report in Section 1?
Section 1 asks for your adjusted gross income (AGI) and describes it as “income before taxes are taken out.” Enter the amount and indicate whether it is an annual amount or a “pay per period” amount.
How do I choose the correct pay frequency (weekly, bi-weekly, semi-monthly, monthly, other)?
Select the option that matches how often you are paid. If none apply, choose “Other” and write in the frequency.
What if I have no taxable income?
Check the box for “No taxable income” in the applicable section. You should still complete the rest of the section as appropriate and sign the certification.
What information do I need to provide about my income source?
You must list the name of the income source and its address, including city, state, and ZIP code. This is required in the section where you are reporting that income.
What if I have more than one income source?
Attach additional pages that include the name, address, and income information for each additional income source. Make sure the attached information is clear and complete.
Do I need to complete Section 2 about my spouse’s income?
Complete Section 2 only if Section 4C was completed on the Income-Driven Repayment Plan Request. If that condition does not apply, you typically leave Section 2 blank.
Does my spouse need to sign the form?
Your spouse must sign only if you completed Section 2. The borrower signature is required in all cases.
Where do I sign and date the form?
Sign and date on the lines labeled “Borrower Signature (required)” and “Date.” If Section 2 is completed, your spouse must also sign and date on the spouse signature lines.
How can I submit the completed form to MOHELA?
You can upload, fax, or mail the completed form. Upload via mohela.studentaid.gov > Upload > Repayment Plan, fax to 866-222-7060, or mail to 633 Spirit Drive, Chesterfield, MO 63005-1243.
What is the best way to submit the form securely online?
Use MOHELA’s Secure Form Submission by going to mohela.studentaid.gov, selecting Upload, and choosing Repayment Plan. This is the form’s listed secure upload path.
How can I contact MOHELA if I have questions while completing the form?
You can call 1-888-866-4352 for assistance. TDD users can dial 711, and the form lists support hours for weekdays and Saturday in Eastern Time.
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