Guides
USCIS Immigration Guides
In-depth, plain-language guides on how USCIS works — written for applicants who want to understand their case, not just check a status page. None of this is legal advice; consult an immigration attorney for case-specific guidance.
Foundational
Start here if you're new to USCIS processing-time data or trying to figure out how to push a stuck case forward.
How USCIS processing times work
8 minWhat the 80th-percentile methodology means, how to read the published range, and why your case may resolve faster or slower.
What to do if your USCIS case is delayed
10 minService requests, congressional inquiries, USCIS Ombudsman, premium processing, writ of mandamus — the full set of remedies.
Case status vs processing times — the difference
6 minTwo USCIS tools, two different questions. When to use each.
USCIS filing checklist
12 minForms, fees, evidence, signatures, common rejection reasons — what every USCIS filing needs.
EB-2 vs EB-3 — which is faster?
9 minSide-by-side comparison of the two main employment-based green card categories, including downgrading strategy.
By form
Deep dives on the most-filed USCIS forms.
H-1B processing times in 2026
11 minCap, change of status, transfer, extension, amendment — current timelines and premium processing.
I-485 adjustment of status processing times
12 minFamily-based, employment-based, asylee — timelines by category, interview, EAD/AP, RFE patterns.
I-130 family petition processing times
11 minAll eligibility categories, Visa Bulletin connection, what comes after approval.
N-400 naturalization processing times
10 minEligibility, continuous residence, English/civics tests, interview, oath ceremony.
More coming
We're publishing new guides regularly. If there's a topic you'd like covered, send a note via the Feedback widget at the bottom-left of any page.