Why cut-off dates move backwards

The mechanism

Immigrant visas are capped: an annual worldwide limit per category family, and a per-country limit within it. The Department of State sets each monthly cut-off as an estimate of how far down the queue it can go without exceeding those caps by the end of the fiscal year.

It is an estimate because demand is not fully visible in advance. Cases are filed at two agencies, documented at different speeds, and become approvable unpredictably. When more approvable demand materialises at a given priority date than the estimate assumed, the cut-off has to move back so that issuance stays inside the cap. The alternative is issuing numbers that do not exist.

Retrogression is a correction to an estimate about the future, not a reversal of anything that already happened. Nobody loses a priority date, and nothing already approved is undone.

When it tends to happen

• Late in the fiscal year. The closer September gets, the less room there is to absorb a surprise, so July, August and September are where the sharpest backward steps cluster.
• After a period of unusually fast advancement. A cut-off pushed forward aggressively to use up numbers will surface demand that was previously invisible, and that demand then has to be accommodated.
• In heavily oversubscribed country columns. India and China carry queues long enough that a small change in the estimate moves the date a long way.
• When numbers are reallocated between categories, which can advance one category and force another back in the same issue.

What the October reset does

The fiscal year begins on 1 October and the annual limits start again. Categories that had gone unavailable typically reopen, and cut-offs that were held back by an exhausted limit typically recover. This is why the ordinary shape of the year is generous in the first quarter and tight in the last, and why comparing an October issue against the September before it measures the calendar rather than the queue.

The reset does not always return a cut-off to where it stood before it retrogressed. If the underlying demand is real, the new year opens at a date that reflects it.

Each category page on this site lists the retrogressions in the published archive, with the month and the size of the step, and measures how much stronger the first fiscal quarter has actually been than the last. Every backward step on record, by category

What it means for a case

If a case has not yet been approved, retrogression stops it where it is until the cut-off passes the priority date again. An adjustment application already on file remains on file, and pending benefits attached to it are not withdrawn because the date moved. A consular case already scheduled may be pushed back.

What retrogression does not do is tell you how long the setback will last. The bulletin publishes no forecast, and the size of a backward step carries no information about the recovery. A twelve-month retrogression is not a twelve-month delay; it may be shorter or very much longer.

The history pages show the full published series for each category, including every backward step, which is a record rather than a forecast. How a cut-off has actually behaved