N-600 Final-Stage Waits Rose 19 Days While RFE Cases Cleared Four Times Faster
Week 19 of 2026 delivered two opposing signals: the overall median climbed to its highest point in 12 weeks, yet cases that received a Request for Evidence cleared at a fraction of the standard pace.
The N-600 Certificate of Citizenship final-stage wait rose to 97 days in the week of May 4, up 19 days from 79 days the prior week, the largest single-week move in the 12-week window. At the same time, cases that had received an RFE (Request for Evidence) cleared at a median of just 22 days, against 98 days for cases on the standard path. That 4.4x speed difference triggered an anomaly flag in the data. The two signals pull in opposite directions: a rough week for most applicants, an unusually fast one for a subset. All 288 approvals this week processed through IOE, the e-filing system, so no center-level divergence explains either pattern.
- The N-600 final-stage median reached 97 days the week of May 4, up 19 days (+23.7%) from 79 days the prior week, the highest reading in 12 weeks.
- Cases that received an RFE cleared at a median of 22 days, compared with 98 days for cases on the standard path, a speed ratio of 4.4x that triggered the rfe_fast anomaly flag.
- The 8-week slope is +1.7 days per week but the R-squared is only 0.22, meaning the trend explains little of the week-to-week movement; the 12-week trailing average of 86 days is the steadiest reference.
- The January 2026 filing-month group (18 weeks old) is just 6.5% cleared, and the total active backlog grew by 476 cases (+8.0%) over 6 days, with the April 2026 group adding 162 active cases.
- If the current slope continues, the model projects final-stage medians in the range of ~82 to 121 days across the next four weeks, though the weak R-squared means the bands should be treated as rough orientation.
A week of opposing signals
The N-600 final-stage wait came in at 97 days the week of May 4, up 19 days (+23.7%) from 79 days the prior week. That is the highest single-week reading in the 12-week window tracked here. The jump happened against a backdrop that is noisy rather than cleanly rising, which makes it a notable move without being a definitive turning point. The immediate counterweight: an anomaly flag fired for unusually fast clearing among cases that had received an RFE (Request for Evidence, USCIS's standard follow-up letter asking for missing documents). That group posted a median of just 22 days, against 98 days for cases moving through the standard path. The week was, in short, a rough one for most applicants and an atypically quick one for a smaller subset.
Twelve weeks of volatility, not drift
97 days this week, up 19 from last
Over the 12 weeks ending May 4, N-600 medians have ranged from 74 to 108 days with no consistent direction. The 8-week regression slope is +1.7 days per week, but an R-squared of 0.22 means that slope accounts for little of the actual week-to-week movement. The 12-week trailing average of 86 days is the steadiest reference point for readers trying to calibrate expectations. This week's spread between the 25th percentile (p25, meaning a quarter of cases cleared by this point) at 29 days and the 75th percentile (p75, meaning three quarters cleared by this point) at 193 days is the widest in the window, a signal that individual case experiences diverged widely from the median this week.
When the RFE path runs faster
In a typical week, cases that have received an RFE take substantially longer than cases that move through without one. This week inverted that pattern. The RFE-response group posted a median of 22 days, while cases on the standard path took 98 days, a ratio of 4.4x. The rfe_fast anomaly flag, which fires when RFE-path cases clear at an unusually low value relative to the recent baseline, registered at 0.23 this week. The most plausible reading, though the data does not confirm it, is that a set of RFE responses filed weeks ago arrived together and cleared as a group. That kind of batch effect is consistent with a one-week inversion rather than a lasting structural change. Receiving an RFE does not by itself signal denial; most cases that receive one are still approved.
4.40x RFE response cases clear faster than the plain processing cohort.
Stage-level data from the 30-day window aligns with this reading. Cases at the 'Response To USCIS' Request For Evidence Was Received' status show a raw median of 28 days, a p25 of 15 days, and a p75 of 56 days across 979 cases, in line with the 22-day approval-cohort (a group of cases) figure. Standard processing cases at 'Case Is Still Being Processed By USCIS' show a raw median of 84 days (p25 34, p75 134) across 15,001 cases, consistent with the 98-day reading for the non-RFE approval group.
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