I-485 Final-Stage Wait Jumps 13 Days in a Single Week to 74 Days

The I-485 final-stage median rose to 74 days in the week of Aug. 24, up from 61 days the prior week, a 13-day move (+21.6%) that triggered a statistical outlier flag at a z-score of 11.99 against the prior 4-week trailing mean. The 12-week trailing average has been 56 days, placing this week's reading 18 days above the recent norm. The same week last year registered 61 days across 10,054 approvals, so this week is also 22% above the year-ago baseline. This metric measures the final-stage wait, meaning the time from a case's last reported status to its approval, not the full span from filing.

The median has been trending upward since W24, when it sat at 49 days in early June. The 8-week regression slope of +2.0 days per week, at an R² of 0.61, indicates a direction that appears to be real but carries meaningful week-to-week noise. The W35 reading of 74 days is consistent with that upward drift but sits well above what a mechanical projection of the slope alone would produce, suggesting a one-week shock layered on top of the underlying trend. The 75th percentile (p75) has widened from 86 days in W24 to 109 days in W35, indicating that the slower portion of the distribution is moving faster than the faster portion.

The 4-week forecast, which requires a range given an R² of 0.61, projects medians of approximately 70 to 83 days by Aug. 31 and around 76 to 89 days by Sep. 21 if the current slope continues. This is a mechanical extrapolation and does not account for shocks like the one observed this week. USCIS announced on Aug. 19 that older editions of the I-485 form will be rejected starting Sept. 18 (news-001); that deadline may influence filing behavior in coming weeks and, in turn, processing volumes and medians.

IOE (e-filed cases), which accounts for the large majority of volume at 6,564 approvals this week, posts a median of 72 days with a rising slope of +2.2 days per week (R²=0.63). The National Benefits Center (MSC), with 344 approvals this week, sits at 63 days; its slope of -8.7 days per week would suggest improvement, though an R² of 0.15 leaves little confidence in that direction. The Texas center (SRC, n=128) is the fastest at 36 days. The Nebraska Service Center (LIN, n=114) is the most concerning: a 202-day median paired with a rising slope of +15.1 days per week at R²=0.61. The California Service Center (WAC, the USCIS facility in Laguna Niguel, n=82) shows 170 days but a slope of -50.3 days per week (R²=0.67), consistent with recent rapid improvement from a previously high baseline. LIN and WAC each carry small samples and single-week readings should be interpreted with caution. The uneven-centers flag fired at a spread value of 281 days.

Where a case routes can shift the expected final-stage wait by months, depending on which center handles it.