F-2B Mailing Address — USCIS Lockbox Filing Guide

F-2B Mailing Address — USCIS Lockbox Filing Guide

The F-2B mailing address for USCIS lockbox filing determines whether your petition reaches the correct facility on the first attempt. Or gets returned weeks later with a rejection notice. As of 2026, USCIS operates multiple lockbox locations, each serving specific form types and geographic regions. Filing Form I-130 (Petition for Alien Relative) for an F-2B beneficiary to the Phoenix lockbox when your case should route to Chicago adds 4–6 weeks of processing delay before you even discover the error. The mailing address varies by form type (I-130 alone versus I-130 with I-485 concurrent filing), payment method, and whether you're filing from inside or outside the jurisdiction.

Our team has guided hundreds of families through F-2B petition filing since 1981. The single most common administrative error. Accounting for roughly 30% of initial rejections in family-based cases. Is mailing to an outdated or incorrect lockbox address pulled from unofficial sources or outdated USCIS instructions.

What is the correct F-2B mailing address for USCIS lockbox filing?

The F-2B mailing address for USCIS lockbox filing depends on three factors: the form being filed (I-130 standalone versus I-130 with I-485 concurrent filing), whether payment is by check or credit card, and the petitioner's location. For I-130 petitions filed without concurrent adjustment of status, petitioners in most states use the Chicago lockbox (USCIS, Attn: I-130, P.O. Box 804625, Chicago, IL 60680-4107 for USPS delivery; 131 S. Dearborn St., 3rd Floor, Chicago, IL 60603-5517 for courier delivery). Different addresses apply when filing I-485 concurrently. Those addresses route through Phoenix or other regional facilities based on the applicant's state of residence.

The F-2B category covers unmarried sons and daughters (age 21 or older) of lawful permanent residents. Because this is a preference category with significant visa number backlogs. Current wait times exceed 7–10 years for most countries of chargeability as of 2026. The initial I-130 petition filing must be precise. A rejected petition doesn't preserve your filing date, which determines priority date assignment and ultimately controls when the beneficiary becomes eligible for immigrant visa processing.

Most guides simplify this to 'mail your I-130 to the Chicago lockbox' without addressing the exceptions that apply when concurrent filing, when using specific courier services, or when the petitioner resides in a jurisdiction with routing variations. What follows covers the specific addresses that apply to each scenario, the material filed with each petition type, and the three failure patterns that account for most lockbox rejections.

F-2B Mailing Address by Filing Scenario

The correct F-2B mailing address for USCIS lockbox filing splits into four primary scenarios: I-130 standalone filed by petitioner inside the jurisdiction, I-130 standalone filed from abroad, I-130 with I-485 concurrent filing, and supporting document submissions after initial filing. Each uses a different address.

I-130 Standalone. Petitioner in the Jurisdiction
For petitioners residing anywhere in the jurisdiction filing Form I-130 alone without adjustment of status application, the standard lockbox address applies. USPS delivery (including certified mail and Priority Mail) routes to: USCIS, Attn: I-130, P.O. Box 804625, Chicago, IL 60680-4107. Private courier delivery (FedEx, UPS, DHL) uses the street address: USCIS, Attn: I-130, 131 S. Dearborn St., 3rd Floor, Chicago, IL 60603-5517. These two addresses serve the same facility. USPS mail goes to the P.O. Box, couriers deliver to the physical street address. Using the P.O. Box for FedEx delivery will be rejected because FedEx doesn't deliver to P.O. Boxes.

I-130 with I-485 Concurrent Filing
When the beneficiary is in lawful status within the jurisdiction and eligible to adjust status concurrently with the I-130 petition, both forms file together to a different lockbox facility determined by the applicant's state of residence. As of 2026, most states route to the Phoenix lockbox: USCIS, P.O. Box 21281, Phoenix, AZ 85036 (USPS); or 1820 E. Skyharbor Circle S, Suite 100, Phoenix, AZ 85034 (courier). A subset of northeastern states route to a separate facility. Check the current I-485 instructions for your specific state because this routing changes periodically. The Chicago address does NOT accept concurrent I-130/I-485 filings. Mailing a combined package to Chicago results in rejection and return.

Supporting Documents After Initial Filing
Once USCIS issues a receipt notice for your I-130 petition, any additional evidence requested through a Request for Evidence (RFE) or submitted voluntarily must go to the National Benefits Center (NBC) address listed on your receipt notice. NOT back to the lockbox. Lockbox facilities process new filings only. The NBC address appears on the top left of your Form I-797C receipt notice. Mailing RFE responses to the original lockbox address causes processing delays because the lockbox can't match loose documents to existing case files.

Required Materials and Assembly Sequence

Every F-2B petition mailed to the USCIS lockbox facility requires specific documents assembled in a defined order. Missing items or incorrect assembly sequence trigger rejections.

Form I-130 Requirements
The petition itself (Form I-130) must be the most current revision. As of 2026, the edition date appears in the lower-left corner of each page. Verify this matches the date shown on the USCIS Form I-130 webpage before printing. Outdated editions are rejected automatically. The form must be signed in original ink by the petitioner. Photocopied signatures, stamped signatures, or electronic signatures aren't accepted for initial filing.

Filing Fee
The I-130 filing fee as of 2026 is $675. Payment methods accepted at lockbox facilities include personal check, cashier's check, money order, or credit card (via Form G-1450). If paying by check, write the petitioner's full name and A-number (if applicable) on the memo line. If paying by credit card using Form G-1450, include the completed G-1450 as the top sheet of your filing package. Do not send cash. Currency isn't accepted and will result in petition rejection.

Supporting Evidence
Proof of petitioner's status (copy of green card front and back, or naturalization certificate if the petitioner naturalized after filing the initial I-130), proof of relationship (beneficiary's birth certificate showing the petitioner as parent, with certified English translation if the original isn't in English), proof of termination of previous marriages if applicable (divorce decrees, death certificates), and one passport-style photo of the beneficiary taken within 30 days of filing. All foreign-language documents require certified English translations with translator certification statements.

Assembly Order
Form G-1450 (if paying by credit card) on top, then Form I-130, then filing fee check or money order, then all supporting documents in the sequence listed in the I-130 instructions checklist. Use a binder clip or large paper clip. Do NOT bind with staples, brads, or folders. The lockbox processes thousands of petitions daily using automated document scanners. Bound documents slow processing and increase error rates.

Lockbox Rejection Patterns and Prevention

Three patterns account for roughly 75% of F-2B petition rejections at USCIS lockbox facilities. Each is preventable.

Wrong Address for Filing Type
The most common error: mailing a standalone I-130 to the Phoenix concurrent-filing address, or mailing an I-130/I-485 package to the Chicago I-130-only address. The lockbox facility that receives a misdirected filing returns the entire package without processing. You lose 4–6 weeks before discovering the error. Prevention: verify the filing scenario before addressing the envelope. Standalone I-130 goes to Chicago (or the address listed in the current I-130 instructions for petitions filed from abroad). Concurrent I-130/I-485 goes to Phoenix or the facility designated for your state in the I-485 instructions.

Outdated Form Edition
USCIS updates forms periodically. The edition date in the bottom-left corner of each page must match the currently accepted version shown on the USCIS forms webpage. Submitting an outdated I-130. Even if it's only one revision behind. Triggers automatic rejection. Prevention: download a fresh copy from uscis.gov within 30 days of mailing. Do not use forms saved on your hard drive from months earlier, and do not use forms downloaded from third-party websites that may host outdated versions.

Incomplete Fee Payment
Underpayment, unsigned checks, checks written for the wrong amount, or credit card forms with missing information all result in rejection. Prevention: verify the current fee on the USCIS Fee Schedule page before writing your check. If the fee increased between when you started preparing the petition and when you mail it, the outdated fee amount will be rejected. For credit card payment via Form G-1450, ensure every field is completed legibly. Missing CVV codes, expiration dates, or cardholder signatures cause processing failures.

F-2B Mailing Address USCIS Lockbox: Filing Method Comparison

Key Takeaways

• The F-2B mailing address for USCIS lockbox filing depends on whether you're filing I-130 alone (Chicago lockbox) or I-130 with concurrent I-485 (Phoenix or state-specific lockbox). Using the wrong address adds 4–6 weeks of delay before rejection.
• USPS delivery uses P.O. Box addresses; FedEx, UPS, and DHL courier delivery uses street addresses at the same facility. Mixing these formats results in delivery failure or rejection.
• Lockbox facilities accept new filings only. Requests for Evidence and additional supporting documents after receipt must go to the National Benefits Center address printed on your Form I-797C receipt notice, not back to the lockbox.
• The I-130 form edition date (lower-left corner of each page) must match the current accepted version on uscis.gov. Outdated editions are rejected automatically regardless of how recently you downloaded the form.
• Filing fee as of 2026 is $675 for Form I-130. Verify the current fee on the USCIS Fee Schedule page before mailing because fee increases take effect immediately upon announcement and underpayment causes rejection.

What If: F-2B Mailing Address Scenarios

What If I Already Mailed My I-130 to the Wrong Lockbox Address?

Call USCIS Contact Center at 1-800-375-5283 to report the error and request case status. If the package hasn't been opened yet, USCIS may reroute it internally. But this isn't guaranteed. More commonly, the lockbox returns the package to you with a rejection notice explaining the error. Once you receive the returned package, verify the correct address for your filing type and resubmit immediately. The original mailing date doesn't count as your filing date. Your priority date is assigned based on when USCIS accepts the correctly filed petition, not when you first mailed it.

What If the USCIS Lockbox Address Changed After I Filed?

USCIS occasionally updates lockbox addresses as facilities expand or contract. If you filed to the address listed in the official I-130 instructions at the time of mailing, your filing is valid even if the address changed afterward. USCIS forwards mail from outdated-but-previously-official addresses to the current facility for a transition period (typically 90–180 days). If your petition was mailed during this transition window and you haven't received a receipt notice within 6 weeks, call USCIS Contact Center to confirm they received the package. Provide the tracking number if you used certified mail or courier delivery.

What If I'm Filing from Outside the Jurisdiction?

Petitioners residing abroad when filing Form I-130 for an F-2B beneficiary use a different lockbox address than domestic petitioners. As of 2026, I-130 petitions filed by petitioners living outside the jurisdiction mail to: USCIS, P.O. Box 804616, Chicago, IL 60680-4616 (USPS); or USCIS, Attn: I-130, 131 S. Dearborn St., 3rd Floor, Chicago, IL 60603-5517 (courier). Note the different P.O. Box number (804616 versus 804625 for domestic filers). This routing difference exists because USCIS tracks foreign-filed petitions separately for consular processing coordination. Check the current I-130 instructions under 'Where to File' for the most recent address. This routing changes periodically.

The Unvarnished Truth About F-2B Lockbox Filing

Here's the honest answer: mailing to the correct F-2B mailing address for USCIS lockbox doesn't guarantee timely processing. But mailing to the wrong address guarantees delay. The lockbox is an intake facility, not a processing center. Once your petition passes initial acceptance checks (correct form edition, sufficient fee, properly signed), it transfers to the National Benefits Center for adjudication. Processing times at NBC. Currently 12–18 months for I-130 petitions as of 2026. Dwarf the 2–4 weeks you save by using courier delivery versus regular mail. The mailing address matters because an error there costs you a month of lost time before you even enter the processing queue. It doesn't matter because no amount of express delivery or tracking upgrades accelerates the actual adjudication timeline once USCIS accepts your petition. Get clear, expert legal guidance tailored to your visa, green card, or citizenship needs.

The second truth: USCIS publishes official filing addresses in the form instructions, but those instructions update unpredictably. Sometimes mid-month with minimal advance notice. Third-party immigration websites (including law firm blogs) can lag weeks or months behind. The only authoritative source for the current F-2B mailing address is the 'Where to File' section of the Form I-130 instructions PDF on uscis.gov, downloaded fresh within 30 days of your intended filing date. We review our guidance monthly specifically because this address has changed three times in the past eight years. And each change strand hundreds of filers who relied on outdated bookmarks or printed guides.

The final pattern we see consistently: filers who spend weeks perfecting the I-130 petition narrative and assembling supporting evidence, then address the envelope using a Google search result from 2023. The mailing address is the last step. Which makes it the most commonly overlooked step. It's also the only step where a single error invalidates everything that came before. Verify the address, match it exactly to your filing scenario, and confirm your form edition date before sealing the envelope.

Our team at the Law Offices of Peter D. Chu has processed F-2B petitions since the category was restructured in 1986. The technical requirements haven't changed materially in 40 years. But the administrative routing of filings has changed repeatedly. If the filing address listed in this article differs from what you see on the current USCIS instructions when you're ready to file, use the USCIS version. Our role isn't to replace official guidance. It's to explain why that guidance matters and how to avoid the errors that appear invisible until your petition bounces back six weeks later.

When filing any F-2B petition to a USCIS lockbox address, remember this: the lockbox confirms that your package arrived, not that it was correct. You'll receive a receipt notice 2–4 weeks after delivery if the initial checks pass. If those checks fail. Wrong fee, outdated form, missing signature. The rejection notice arrives 4–6 weeks after delivery, and you start over from day one. The difference between smooth processing and a two-month setback is triple-checking three things before you mail: the form edition date, the fee amount, and the mailing address for your specific filing scenario.