FormGuard
USCIS Form Checker
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New USCIS signature rule · in effect since 10 July 2026

A signature mistake can now
cost you the filing fee.

Since 10 July 2026, USCIS can deny a paper filing with an invalid signature instead of returning it — the fee is kept, and there is no chance to fix it. Upload your completed form and we will show you one real issue in full in about a minute — the field, the problem and the exact fix. Free, no sign-up.

Free, no sign-up: your biggest issue in full — the field, the problem and the exact fix — plus how many others we found and how serious they are · $39 unlocks every remaining issue in the same detail · You pay only if you choose the full report

The immigration errors USCIS rejects forms for — and how the check works →

See a sample report — what the full report looks like
Sample report — fictional applicant

A made-up Form I-130 from our test set, with four errors planted on purpose. It is not a real person's form, and names and numbers are left out.

HIGH risk
Spouse petition (I-130): 4 issues found. Fix the marriage date before you file.
1 must-fix2 to review1 note
CRITICALPart 2 — Date of current marriage
Problem: The marriage date is later than today. A spouse petition rests on a marriage that has already taken place, so a future date contradicts the rest of the form.
How to fix: Copy the date exactly from your marriage certificate, written as mm/dd/yyyy.
WARNINGPart 2 — Certificate of Naturalization number
Problem: You answered that you became a citizen through naturalization, but the certificate number is blank.
How to fix: Copy the number printed on your Certificate of Naturalization, with its place and date of issuance.
WARNINGPart 4 — Beneficiary's date of birth
Problem: The date is written day first (31/01/…). USCIS asks for mm/dd/yyyy, so it reads as month 31.
How to fix: Write it month first (01/31/…), the same way as every other date on the form.
NOTEDocuments sent with the petition
Problem: This is a petition for a spouse, and Form I-130A is not on your list of documents.
How to fix: Include a completed Form I-130A for your spouse in the same package.

Your own report reads the same way: every issue we find on your form, where it is, and what to write instead. You can download it as a PDF.

$1,440
I-485 filing fee you don't want to risk on a form sent back for errors
15
Error types our AI checks on every form
~1 min
Fast AI review of your form
Top reasons USCIS rejects forms
✗Missing signature or date on final page
✗Wrong or outdated form edition
✗Incorrect fee amount attached
Usually a Request for Evidence instead
?Dates not written in the MM/DD/YYYY format USCIS asks for
?Name doesn't match exactly across all fields
?Blank required fields left empty instead of writing N/A
?Missing supporting documents listed in instructions

Rejection grounds: 8 CFR 103.2(a)(7)

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📝 Plain English explanations

Free, no sign-up. For a digitally filled PDF the text is read in your browser and the file itself never reaches our servers; a photo or scan is analyzed in memory and discarded — we never keep the image. Any filing fees we show come from the official USCIS G-1055 fee schedule. Privacy

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Our AI is cross-referencing your form against USCIS rejection patterns and field requirements. This usually takes under a minute, but a long, detailed form can take a few minutes — please keep this tab open.

Also check your supporting documents — free
USCIS checks your form. It does not check your photo, your translations or your sponsor's income until an officer reads them — and that is where most Requests for Evidence come from. These checks run in your browser and nothing is uploaded — except the one measurement you have to ask for, below, and even that photo is never stored.
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What the $39 report includes:
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30-day money-back guarantee — you do not need to give a reason.
A rejected filing comes back — the months you waited don't. A denial keeps your fee. This costs $39.
FormGuard uses AI to review your form for common errors only. It is not legal advice and does not replace a licensed immigration attorney. USCIS requirements change frequently — always verify current instructions at uscis.gov before submitting any form. For complex immigration matters, consult a licensed immigration attorney.
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Frequently Asked Questions

Everything you need to know

FormGuard works on any USCIS form, and has a form-specific verification checklist for 22 of them: I-485 (green card / adjust status), I-130 (petition for a relative), I-765 (work permit), I-131 (travel document), N-400 (naturalization), I-90 (replace green card), I-751 (remove conditions), I-140 (employment green card petition), I-539 (extend or change status), N-600 (certificate of citizenship), I-129F (fiancé(e) petition), I-129 (nonimmigrant worker petition), I-864 (affidavit of support), G-28 (attorney or representative notice of appearance), I-589 (asylum), I-130A (spouse beneficiary supplement), I-864A (household member income contract), I-539A (I-539 co-applicant supplement), I-693 (medical exam and vaccination record), I-912 (fee waiver request), I-526 (EB-5 standalone investor petition) and I-526E (EB-5 regional center petition). For anything else, choose “My form isn’t listed” and FormGuard runs a general pre-filing review.
FormGuard charges a one-time fee of $39 per form review. No subscription or recurring fees. Set against a filing that can cost $1,440 in government fees — and months of case time if the package comes back — a $39 check before you send it is cheap insurance. Firms, clinics and accredited representatives filing in volume use monthly plans instead; see FormGuard for Firms.
Yes. FormGuard is a service that checks immigration forms for errors before you file. Upload your completed USCIS form and our AI reviews it in about a minute for the common errors that get immigration applications rejected or questioned — missing signatures, outdated form editions, blank required fields, wrong date formats, and name mismatches. You see one of the issues in full for free — the field, the problem and the exact fix — plus how many others were found and how serious they are. $39 unlocks the rest of them in the same detail. (A scanned PDF longer than 3 pages skips the free preview and goes straight to the paid report.)
FormGuard identifies missing signatures, incorrect date formats, blank required fields that should say N/A, name inconsistencies, wrong checkbox selections, incorrect fee amounts, and missing required supporting documents.
Upload your completed form and see your free finding, issue count and risk level in about a minute. The complete report — the field, the problem and the exact fix for every remaining issue — unlocks immediately after the $39 payment.
No. FormGuard checks for common errors but cannot guarantee USCIS approval. USCIS requirements change frequently. Always verify at uscis.gov before filing. For complex matters consult a licensed immigration attorney.
No. FormGuard is a private, independent service and is not affiliated with, endorsed by, or connected to U.S. Citizenship and Immigration Services (USCIS) or any U.S. government agency. We do not file your application or collect government fees — you submit directly to USCIS and pay any fees to USCIS. The official government website is uscis.gov.
No. FormGuard is a document review automation tool, not a law firm. It does not provide legal advice. For complex immigration matters always consult a licensed immigration attorney.
Yes — your uploaded form image is never stored on our servers. It is analyzed in memory and discarded. The one exception is at your request: if a check you paid for fails, you can tick a box asking us to keep your form for 4 days so we can finish the report by hand, and we delete it as soon as the report is sent or the 4 days are up. Your report (the list of issues found) is saved so you can retrieve it for 24 hours after purchase at uscisformcheck.com/retrieve, using the email you paid with and your card's last 4 digits. We never keep your form image.
USCIS updates form requirements frequently. FormGuard reflects current instructions but you should always verify at uscis.gov before submitting. For complex cases consult a licensed immigration attorney.

USCIS Form Error Checker — Avoid Common Immigration Form Mistakes

USCIS rejects a filing at intake if it is not signed with a valid signature, not submitted with the correct fee, or not filed the way the rules for that form require — which includes using the current edition. A rejected filing does not keep its filing date: it comes back unprocessed, and you start again from a new one. Other defects — a wrong date format, a blank item that should say N/A, a name that does not match — are not grounds for rejection on their own unless the form’s instructions make them one, and tend to surface later as a request for evidence. A signature defect is worse: since 07/10/2026 an invalid signature on a paper filing can be denied, with the fee kept and no chance to cure. FormGuard uses AI to review your completed USCIS form and identify errors before you submit.

How to Fill Out Form I-485 Correctly

Form I-485 Application to Register Permanent Residence is one of the most complex USCIS forms. Common I-485 mistakes include leaving Part 1 fields blank instead of writing N/A, inconsistent name spelling across sections, missing the required signature and date on Part 12, and incorrect alien registration number format. The I-485 filing fee is $1,440 for most applicants, making errors extremely costly.

How to Fill Out Form I-130 Correctly

Form I-130 Petition for Alien Relative is used to establish a qualifying relationship with a foreign national relative. Common I-130 errors include mismatched names between the petitioner and supporting documents, missing proof of US citizenship or permanent residence, incorrect relationship category selected, and missing signatures. USCIS will return the entire package if the I-130 has errors.

Do Any Services Check Immigration Forms for Errors?

Yes. FormGuard is a service built specifically to check immigration forms for errors before you file with USCIS. Upload your completed form and, in about a minute, our AI flags the common errors that get immigration applications rejected or questioned — missing signatures, outdated form editions, blank required fields, wrong date formats, and name mismatches. You see one of the issues in full for free — the field, the problem and the exact fix — plus how many others were found and your overall risk level; the rest stay locked until you pay $39 for the full report, which names each one the same way. It is the fast, low-cost way to catch mechanical immigration form mistakes before they cost you a rejection — whether you are filing on your own or running a final check over a package an attorney or accredited representative prepared.

Common Immigration Errors USCIS Rejects Applications For

The immigration errors USCIS sees most often are not complicated legal problems — they are small, fixable clerical mistakes. The most frequent immigration errors on USCIS forms include a missing or unsigned signature block, dates not written in the MM/DD/YYYY format USCIS asks for, inconsistent name spelling between fields, required fields left blank instead of marked N/A, an outdated form edition, and the wrong filing fee. The signature, the fee and the edition can get an otherwise-approvable application rejected at intake; the others more often bring a request for evidence. FormGuard checks immigration forms for exactly these errors so you can correct them before USCIS ever sees the package.

Most Common USCIS Form Rejection Reasons

USCIS rejects a filing at intake — returning it unprocessed, without a filing date — when it is not submitted with the correct fee, is on an outdated form edition, or breaks a rule in that form’s own instructions (a G-28 without its attorney or representative block, for example). Other common problems usually surface later as a request for evidence rather than a rejection: dates not written in the MM/DD/YYYY format USCIS asks for, name inconsistencies between fields, blank items that should say N/A, wrong checkbox selections, and supporting documents missing from the package. Signature problems sit in a harsher category: since the DHS signature rule effective 07/10/2026, an invalid signature on a paper filing can be denied rather than returned, with the filing fee kept and no opportunity to cure (Forms N-600 and N-600K are the two exceptions, where a signature defect remains a rejection).

Form N-400 Common Mistakes

Form N-400 Application for Naturalization is used to apply for US citizenship. Common N-400 mistakes include failing to disclose all trips outside the US in the past 5 years, incorrect continuous residence dates, missing tax return information, unanswered questions in Part 12, and missing the biographic information page. A rejected N-400 does not keep its filing date: it comes back unprocessed, and your case starts over from a new one.

Form I-765 Employment Authorization Common Errors

Form I-765 Application for Employment Authorization is frequently rejected for missing eligibility category codes, incorrect or expired supporting documents, missing passport-style photographs, wrong filing fee, and name discrepancies. Without an approved I-765 you cannot legally work in the United States, making accuracy critical.

Why Use an AI USCIS Form Checker

Mechanical filing defects are the errors most likely to slip past a tired final read — a superseded edition date, an item left blank instead of marked N/A, a signature block missed on page 9, a name spelled two ways across a package. FormGuard reviews a completed USCIS form for exactly those defects in about a minute and returns a plain-English report naming the field, the problem and the fix. It is a consistency check, not legal advice: eligibility, strategy and the merits of a case are matters for a licensed immigration attorney or an accredited representative.

USCIS Form Checking for Law Firms and Legal-Aid Clinics

Immigration practices, nonprofit clinics and BIA-accredited representatives run the same check as a final quality-control step before a package leaves the office, catching edition and signature defects that would otherwise surface as a Request for Evidence or a returned filing. Firm plans replace the $39 per-form price with a monthly check allowance and a reviewer-format report keyed to part and item number, so a paralegal can action the list directly. See FormGuard for Firms.

FormGuard is a private, independent service and is not affiliated with, endorsed by, or connected to U.S. Citizenship and Immigration Services (USCIS) or any U.S. government agency. FormGuard is not a law firm and does not provide legal advice. This AI-powered tool reviews forms for common errors only. FormGuard does not file applications or collect government fees — you submit your application and pay any fees directly to USCIS. USCIS requirements change frequently — always verify current instructions at the official government website, uscis.gov. For complex immigration matters consult a licensed immigration attorney.

Every form we check

I-485 · Green card (adjust status)I-130 · Petition for a relativeI-765 · Work permit (EAD)I-131 · Travel document / advance paroleN-400 · Citizenship (naturalization)I-90 · Replace green cardI-751 · Remove green card conditionsI-140 · Employment green card petitionI-539 · Extend / change statusN-600 · Certificate of citizenshipI-129F · Fiancé(e) visa petitionI-129 · Nonimmigrant worker petitionI-864 · Affidavit of support (sponsor)G-28 · Attorney / rep notice of appearanceI-589 · Asylum / withholding of removalI-130A · Spouse beneficiary supplementI-864A · Household member income contractI-539A · I-539 co-applicant supplementI-693 · Medical exam & vaccination recordI-912 · Fee waiver requestI-526 · EB-5 standalone investor petitionI-526E · EB-5 regional center petition