How to read USCIS processing times, and why the date that lets you ask is a different number

Two properties make the published range a description rather than a forecast. It is retrospective, built from cases that finished, so every file it summarises entered the system earlier than yours and travelled through whatever conditions applied then. And it is a spread rather than a midpoint: it is drawn wide enough to cover most completions at that office, which means the slower end of it is doing as much work as the faster end.

That spread is often read as a promise about its own lower bound. It is not. A case landing near the fast end and a case landing near the slow end are both inside the published behaviour of that office, and neither outcome indicates anything went right or wrong. The range describes where cases land, not where yours will.

The practical consequence is that the range answers planning questions and not much else. It is the right input for deciding whether to renew a document, when to expect to need time off, or whether a related filing needs to happen first. It is the wrong input for deciding whether something has gone wrong, because that question has its own number.

The inquiry date is not read off the displayed range. USCIS calculates it against a higher completion threshold, the point by which the large majority of cases of that type are finished, and then subtracts the time the case has already been pending. That is why two people with the same form at the same office can be told different things on the same day: their receipt dates place them at different points in the same calculation.

The stricter threshold is doing something specific. A case that has passed the point where most cases finish is unremarkable; a case that has passed the point where almost all of them finish is the one worth a second look. The agency has set the door where the evidence of an outlier begins, not where the average ends.

This is also why the arithmetic can feel like it is moving away from you. The threshold is computed from figures that refresh, so a month in which that office's completions slowed can push an inquiry date later even though the case sat still. Nothing has been reset; the definition of an outlier changed underneath it.

Passing the inquiry date unlocks a procedural step, not a decision. The service request that follows asks the office holding the file to review why it is outstanding and respond, and the responses range from a substantive explanation to a restatement that the case remains pending. Neither outcome is a defect in the process; the request is a prompt, and prompting is what it does.

What makes it worth doing anyway is the record. A documented inquiry, and the response to it, is the foundation of every further option: escalation through the ombudsman's office, a congressional inquiry, or, at the far end, litigation to compel a decision. Each of those asks what has already been tried, and an undocumented phone call answers that question badly.

None of this is a route to a faster decision on the merits, and treating it as one leads people to spend money on it. The honest description is narrower and still useful: it converts silence into a written answer, and it puts a case on the record as one the applicant has actively pursued.

Because the figures refresh on a monthly cycle, the answer for an unchanged case can change between visits, in either direction. The range widening does not mean a case slowed down; it means completions at that office spread out. The range narrowing does not mean the case sped up. The only thing that moved is the summary of other people's finished cases.

The comparison people find most alarming, an office whose figures are far worse than a neighbouring one's, usually reflects workload distribution rather than diligence. Offices receive different mixes of work, carry different inventories, and finish cases at different rates as a result. There is no mechanism by which an applicant transfers a case to a faster office because its published figures look better.

A steadier habit than watching the range is watching your own two dates: the receipt date, which is fixed, and the inquiry date, which the tool recomputes. Those two describe your position. Everything else on the page describes the office.