Your collections aren't deteriorating — your concessions are. On a like-for-like rate basis, delinquency at Alowyn is flat year over year: 13.7% of billed residents drew a late fee in Jan–Aug 2026 versus 13.9% in the same months of 2025 1, and eviction-track (attorney fee) incidence actually fell from 11.8% to 9.8% 2. Cash collections held at 100.2% of net billings versus 101.0% a year ago 3 — a 76 bp slip, not a break.

One note on basis before the numbers: the ledger's billed-resident count runs from 50 in Jan-2025 to 164 in Aug-2026 while occupancy never left the 173–181 range out of 185 units 4. That's ledger coverage filling in, not lease-up, so dollar totals are not comparable year over year and every figure below is a rate.

Where it is drifting: the last quarter. Jul–Sep late-fee incidence went 13.0% → 14.0% 5 and late fees per $1,000 of rent billed rose from $5.51 to $6.11 6. September alone is the highest reading in the 21-month series at 15.5% of billed residents 7. That's a real inflection, but it's a few basis points of behavior, not a wave.

The harder number is the balance sheet. Open receivables total $45.3k, and 28% of it is already more than 30 days old 8 — that's the bucket that becomes bad debt, not a late fee. Gross debit balances of $48.2k equal 15.5% of a single month's rent billed 9, spread across 64 of 176 residents on the ledger 10, with one resident at $13.3k 11. That single account is 28% of your open AR; it belongs in front of counsel this week, not in the aging report next month.

Versus the comp set, you're winning — and the tailwind is turning. Peer AR ledgers don't exist in the data, so the comparable read is consumer credit stress. In ZIP 89084 the resident past-due rate has gone from 4.9% to 7.1% over the past year, a 46% relative increase 12, with average past-due balances up from $180 to $264. Large peer rentals in the submarket run a 12.6% median tenant past-due rate — Centennial at 5th at 12.2%, The Presidio at 12.9%, Tribeca North at 20.0% 13. Your area base is materially stronger ($118.9k median household income against a $62.7k peer median 14), which is why your flat delinquency against a rising credit tide is genuine outperformance rather than luck.

The leak you should be chasing is concessions. Concessions ran $153k in the first eight months of 2026, 7.7% of rent charged, against 1.9% a year ago 15. That is roughly $136k of incremental giveback — more than ten times your entire late-fee book — and it landed while occupancy slipped from 178 to 176 units. June and August alone carried $62k and $37k. You are buying occupancy at a discount rate that dwarfs anything delinquency is costing you.

The call: leave collections policy alone — it's working, and the fee incidence is holding against a market where credit is visibly deteriorating. Put the attention on two things: resolve the $13.3k account and the 28% of AR aged past 30 days before it ages into write-off, and get the concession budget in front of the manager with a per-unit cap. What would change this read is the next two months of late-fee incidence: if October and November print above 15% alongside the ZIP past-due rate crossing 7.5%, the flat trend has broken and screening criteria, not collections, is the lever.