The co-op response file: the board's half and the shareholder's half
Published 2026-07-27. Updated 2026-08-04.
Two different files, and one of them cannot be assembled by the person holding the notice.
When this note was first published, the mailing carried two dates: August 21, 2026 for homes and condos and August 24, 2026 for cooperative units? Updated August 2, 2026: on August 1 DOF extended the application deadline to September 18, 2026 for everyone who received a notice, one date for every property type. The extra weeks change the calendar, not the work: the co-op file still has two halves, and the half that takes longest is still the one the person holding the notice cannot assemble alone.
Why the co-op file is different?
The mailing's three-day gap between the printed dates was never explained, and we will not invent a reason for it. What we do have is the structural difference underneath the co-op file? On a covered co-op unit the surcharge is assessed against the cooperative corporation, not the shareholder. DOF imputes a per-unit value: building market value multiplied by the unit's share of total shares, under Administrative Code 11-3205(f). Running that arithmetic on a specific unit is the first thing a board should do.
What the board forwards?
The corporation must forward notices to shareholders, and that is not a courtesy step. The corporation holds the notice and its unique security code; the shareholder holds the residency evidence. Neither side can finish the response alone, which is why boards and managing agents should be routing these the week they arrive rather than at the next board meeting. The sequence a board actually has to run is set out as a board checklist.
What the shareholder files?
The same residency documentation any owner files: a most recent federal or state income tax return showing the address, or two of a driver's license, voter registration, and utility or similar bills, with lease documents where a tenant or subtenant is the qualifying resident. The full document checklist is the version to hand a shareholder.
One more unresolved piece: the Tax Commission has no established procedure for unit-level cooperative valuation protests, and practitioners have flagged it as open. Boards with a valuation problem should not assume the unit-level route exists yet.