SSA-308 PDF Form & Guide

Quick answer

What is SSA-308 used for?

This form addresses a claim or payment circumstance involving another country or a special federal benefit rule. Residence, coverage, pension, citizenship, or payment facts can be relevant in more than one jurisdiction.

A report or questionnaire develops facts rather than making the final decision. Answer for the requested time period, use examples and source records, and explain why an item cannot be answered.

For SSA-308, the transaction named by the government is “Modified Benefits Formula Questionnaire, Foreign Pension.” Use that title to distinguish this PDF from forms that collect related facts but produce a different agency action.

What to prepare before filling SSA-308

01
Confirm that SSA-308 — Modified Benefits Formula Questionnaire, Foreign Pension — matches the action described in your SSA, CMS, or IRS notice. Similar form numbers may serve different programs or review stages.
02
Prepare passports or identity records, foreign addresses, travel and residence dates, foreign work or pension records, and any U.S. claim number. Retain original-language records with complete translations when required.
03
Download a fresh copy of SSA-308 from the official link below. SSA warns that browser PDF viewers may not fill forms consistently, so save the PDF and use current Adobe Reader when needed.
04
Write names, Social Security or claim numbers, dates, addresses, and amounts exactly as they appear in the records you are using. Mark nonapplicable items as the instructions direct instead of inventing an answer.
05
Review SSA-308 for signatures, dates, attachments, continuation pages, and any case-specific return instructions. Keep a complete copy and delivery record.

Questions specific to “Modified Benefits Formula Questionnaire, Foreign Pension”

Use these prompts to test whether your records actually support the subjects named in the official SSA-308 title.

What definition or instruction controls “modified” in this filing, and have you avoided substituting the everyday meaning for the program-specific question?
What definition or instruction controls “benefits” in this filing, and have you avoided substituting the everyday meaning for the program-specific question?
Is “formula” a current fact, a historical fact, or an estimate here, and have you labeled that distinction wherever SSA-308 allows?
Would an attachment about “questionnaire” make the answer clearer, and if so, does it identify SSA-308, the relevant person, and the question it supports?
If an agency reviewer asks about “foreign,” can you trace the SSA-308 entry to a named person, document, account, notice, or event?
What definition or instruction controls “pension” in this filing, and have you avoided substituting the everyday meaning for the program-specific question?

Evidence review

Prepare passports or identity records, foreign addresses, travel and residence dates, foreign work or pension records, and any U.S. claim number. Retain original-language records with complete translations when required.

Before you sign

Use the country-specific SSA or Federal Benefits Unit instructions when available. Do not assume domestic mailing, evidence, notarization, or benefit rules apply unchanged outside the United States.

A reliable way to complete SSA-308

Map the source records

Define the reporting period before collecting numbers or events. Write its start and end dates at the top of your worksheet, and exclude facts outside that window unless the form asks for background. For recurring amounts, preserve both the pay or transaction date and the period covered; those dates can answer different questions in benefit administration.

Review fields and branches

Treat checkboxes and negative answers as substantive statements. Confirm that “none,” “no,” and “not applicable” have different meanings in context, and follow the form’s directions for unused fields. If the PDF does not provide enough room, identify the related item on an additional page rather than compressing an answer until it becomes ambiguous.

Package and track the filing

If a representative, employer, clinician, teacher, or household member completes part of the form, establish who will assemble and send the final package. Give each contributor the relevant deadline and preserve their signed section without later edits. The filer should still review the complete package for consistency before delivery.

Official SSA-308 PDF and resources

These government links were verified in the SSA forms directory on 2026-08-09. Download a fresh PDF before filing because agencies can revise forms and instructions.

English SSA-308 PDF

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Add the blank government PDF and your source documents. Clerks AI can map supported facts to fields and flag gaps for review. You remain responsible for eligibility, signatures, accuracy, evidence, and submission.

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SSA-308 FAQ

Is SSA-308 free to download?

Yes. SSA says all forms in its official directory are free. Use the government PDF link on this page; do not pay a third party merely for the blank form.

Can I fill SSA-308 in a web browser?

Possibly, but SSA says browser PDF viewers do not work consistently for filling or screen reading. Download the file and use current Adobe Reader if fields, saving, or accessibility features do not work correctly.

Where do I submit SSA-308?

Follow the address, office, upload route, or case-specific instruction in the PDF and any notice you received. The SSA directory says paper forms may generally be mailed or faxed unless the form states otherwise, but not every form uses the same destination.

Related international & special benefits forms

SSA-21

SSA-308: Modified Benefits Formula Questionnaire, Foreign Pension