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56,681 columns in the coverage ledger · read from /api/field-coverage on citytap-prod · source last observed Oct 10, 2026, 10:14 PM
3,026 datasets, 56,681 catalogued fields, 0 of them still unread. Every band below is a share of that, worst first. Open one to see its datasets.
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← What we have understood · Dataset page
Every field decided — Every field carries a verdict — which does not mean every field is understood.
Covered and uncovered alike, in the order the publisher lists them. A field with no verdict is one nobody has looked at yet.
| Field | Type | What we know | Meaning | How it was decided | Shared term |
|---|---|---|---|---|---|
| geocoded_column Location2 | Point | Not enough to tell | — | value_domain_read | — |
| icon Icon | Text | Checked, no match | — | dictionary_readType of icon to display on the map - supports front-end rendering on the map | — |
| apptorwalkin ApptOrWalkIn | Text | Understood | category.classification Publisher classification | dictionary_readIndicator of whether NYC Free Tax Prep site requires appointment, accepts walk-ins, or both. | — |
| itin ITIN | Text | Understood | category.classification Publisher classification | dictionary_readIndicator for whether the NYC Free Tax Prep site can help you with your Individual Taxpayer Identification Number (ITIN) application. | — |
| ada_accessible ADA Accessible | Text | Checked, no match | — | dictionary_readIndicator of whether the service site is ADA accessible; Yes; No | — |
| iwednesdayopen iWednesdayOpen | Text | Checked, no match | — | dictionary_readNumber representing the hour the site opens (24-hour clock) | — |
| thursdayopen ThursdayOpen | Text | Checked, no match | — | dictionary_readOpening time in regular time format | — |
| showonmap ShowOnMap | Text | Checked, no match | — | dictionary_readIndicator of whether the site should be displayed on the map; Yes; No | — |
| ycoordinate YCoordinate | Text | Understood | geometry.projected_coordinate.northing Northing | dictionary_read_underspecifiedMapping Ycoordinate of the service site's physical location | — |
| postcode Postcode | Text | Not enough to tell | — | value_domain_read | — |
| amendedreturn AmendedReturn | Text | Checked, no match | — | dictionary_readIndicator for whether the NYC Free Tax Prep site can help | — |
| saturdayopen SaturdayOpen | Text | Checked, no match | — | dictionary_readOpening time in regular time format | — |
| opendatestr OpenDateStr | Text | Checked, no match | — | value_domain_readtop[8 of 20]={Jan 28×84; Jan 29×14; Feb 1×11; Jan 22×11; Jan 31×8; Jan 30×7; Feb 5×5; Feb 2×5} | — |
| show311 Show311 | Text | Checked, no match | — | dictionary_readIndicator of whether the site should be displayed on the map; Yes; No | — |
| fridayclose FridayClose | Text | Checked, no match | — | dictionary_readClosing time in regular time format | — |
| wednesdayclose WednesdayClose | Text | Checked, no match | — | dictionary_readClosing time in regular time format | — |
| selfemployed SelfEmployed | Text | Checked, no match | — | dictionary_readIndicator for whether the NYC Free Tax Prep site can help | — |
| thursdayclose ThursdayClose | Text | Checked, no match | — | dictionary_readClosing time in regular time format | — |
| sitestatus SiteStatus | Text | Checked, no match | — | dictionary_readActive = Site is currently active Concluded = The site is not currently providing services | — |
| providername ProviderName | Text | Understood | actor.organization Organization | dictionary_readName of the organization providing free tax preparation services | — |
| fridayopen FridayOpen | Text | Checked, no match | — | dictionary_readOpening time in regular time format | — |
| sundayopen SundayOpen | Text | Checked, no match | — | dictionary_readOpening time in regular time format | — |
| sundayclose SundayClose | Text | Checked, no match | — | dictionary_readClosing time in regular time format | — |
| nta NTA | Text | Understood | place.nta Neighborhood Tabulation Area | value_domain_read | nta |
| extension Extension | Text | Checked, no match | — | dictionary_readPhone Extension | — |
| ianydayopen iAnyDayOpen | Number | Checked, no match | — | dictionary_readhour including all days of operation supporting map-filtering logic | — |
| ithursdayopen iThursdayOpen | Text | Checked, no match | — | dictionary_readNumber representing the hour the site opens (24-hour clock) | — |
| isaturdayopen iSaturdayOpen | Text | Checked, no match | — | dictionary_readNumber representing the hour the site opens (24-hour clock) | — |
| :@computed_region_f5dn_yrer Community Districts | Number portal artifact | Checked, no match | — | portal_artifact matched by name, unread | — |
| :@computed_region_sbqj_enih Police Precincts | Number portal artifact | Checked, no match | — | portal_artifact matched by name, unread | — |
| wednesdayopen WednesdayOpen | Text | Checked, no match | — | dictionary_readOpening time in regular time format | — |
| iwednesdayclose iWednesdayClose | Text | Checked, no match | — | dictionary_readNumber representing the hour the site closes (24-hour clock) | — |
| website Website | Text | Checked, no match | — | dictionary_readWebsite of the service provider | — |
| mappedaddress MappedAddress | Text | Understood | place.street_address Street address | dictionary_readA concatenation of the service site's physical address used for map display purposes | — |
| unit Unit | Text | Checked, no match | — | dictionary_readFloor, Suite, or sub-unit of the service site's physical address. | — |
| :@computed_region_92fq_4b7q City Council Districts | Number portal artifact | Checked, no match | — | portal_artifact matched by name, unread | — |
| isundayopen iSundayOpen | Text | Checked, no match | — | dictionary_readNumber representing the hour the site opens (24-hour clock) | — |
| prioryear PriorYear | Text | Checked, no match | — | dictionary_readIndicator for whether the NYC Free Tax Prep site can help | — |
| sitename SiteName | Text | Checked, no match | — | dictionary_readName of the specific site where services can be obtained | — |
| citycouncildistrict CityCouncilDistrict | Text | Checked, no match | — | value_domain_read | — |
| building Building | Text | Checked, no match | — | dictionary_readThe building number of the service site's physical location | — |
| l1 L1 | Text | Checked, no match | — | dictionary_readThe languages available at the NYC Free Tax Prep site. | — |
| :@computed_region_efsh_h5xi Zip Codes | Number portal artifact | Checked, no match | — | portal_artifact matched by name, unread | — |
| ifridayopen iFridayOpen | Text | Checked, no match | — | dictionary_readNumber representing the hour the site opens (24-hour clock) | — |
| :@computed_region_yeji_bk3q Borough Boundaries | Number portal artifact | Checked, no match | — | portal_artifact matched by name, unread | — |
| street Street | Text | Checked, no match | — | dictionary_readThe street name of the service site's physical address | — |
| borough Borough | Text | Checked, no match | — | value_domain_read | — |
| phone Phone | Text | Checked, no match | — | dictionary_readPrimary phone number of the service provider | — |
| mondayopen MondayOpen | Text | Checked, no match | — | dictionary_readOpening time in regular time format | — |
| incomelimit IncomeLimit | Text | Checked, no match | — | value_domain_read"For all filers: Income below $55,000.…(clipped)×71; "For all filers: Income below $66,000.…(clipped)×20; "For all filers: income below $54,000.…(clipped)×4 | — |
| imondayclose iMondayClose | Text | Checked, no match | — | dictionary_readNumber representing the hour the site closes (24-hour clock) | — |
| s1 S1 | Text | Checked, no match | — | dictionary_readThe tax preparation service options available at the NYC Free Tax Prep site | — |
| aarp AARP | Text | Checked, no match | — | dictionary_readIndicator for whether the NYC Free Tax Prep site can help | — |
| opendateiso OpenDateISO | Calendar date | Checked, no match | — | dictionary_readThe starting date the NYC Free Tax Prep site opens to eligible New Yorkers | — |
| closedatestr CloseDateStr | Text | Checked, no match | — | value_domain_readtop[8 of 19]={Apr 10×60; Apr 15×52; Apr 13×17; Apr 12×15; Apr 11×12; Apr 9×8; Feb 9×5; Dec 31×2} | — |
| closedateiso CloseDateISO | Calendar date | Checked, no match | — | dictionary_readThe closing date for the NYC Free Tax Prep site | — |
| imondayopen iMondayOpen | Text | Checked, no match | — | dictionary_readNumber representing the hour the site opens (24-hour clock) | — |
| mondayclose MondayClose | Text | Checked, no match | — | dictionary_readClosing time in regular time format | — |
| ianydayclose iAnyDayClose | Number | Checked, no match | — | dictionary_readhour including all days of operation supporting map-filtering logic | — |
| city City | Text | Checked, no match | — | value_domain_readtop[8 of 16]={Jamaica×5; Flushing×4; Far Rockaway×3; Jackson Heights×3; Woodside×2; Elmhurst×2; Forest Hills×2; Arverne×1} | — |
| tuesdayopen TuesdayOpen | Text | Checked, no match | — | dictionary_readOpening time in regular time format | — |
| ituesdayopen iTuesdayOpen | Text | Checked, no match | — | dictionary_readNumber representing the hour the site opens (24-hour clock) | — |
| tuesdayclose TuesdayClose | Text | Checked, no match | — | dictionary_readClosing time in regular time format | — |
| ituesdayclose iTuesdayClose | Text | Checked, no match | — | dictionary_readNumber representing the hour the site closes (24-hour clock) | — |
| ithursdayclose iThursdayClose | Text | Checked, no match | — | dictionary_readNumber representing the hour the site closes (24-hour clock) | — |
| ifridayclose iFridayClose | Text | Checked, no match | — | dictionary_readNumber representing the hour the site closes (24-hour clock) | — |
| saturdayclose SaturdayClose | Text | Checked, no match | — | dictionary_readClosing time in regular time format | — |
| isaturdayclose iSaturdayClose | Text | Checked, no match | — | dictionary_readNumber representing the hour the site closes (24-hour clock) | — |
| isundayclose iSundayClose | Text | Checked, no match | — | dictionary_readNumber representing the hour the site closes (24-hour clock) | — |
| scheduleexceptions ScheduleExceptions | Text | Understood | text.free_text Free text note | dictionary_readExceptions to the posted schedule, typically holidays where services are not available | — |
| notes Notes | Text | Not enough to tell | — | value_profile | — |
| communitydistrict CommunityDistrict | Text | Understood | place.community_district Community District / Board | value_domain_read | community_district |
| bbl BBL | Text | Understood | place.bbl Borough-Block-Lot | value_domain_read | bbl |
| xcoordinate XCoordinate | Text | Understood | geometry.projected_coordinate.easting Easting | dictionary_read_underspecifiedMapping Xcoordinate of the service site's physical location | — |
| latitude Latitude | Text | Understood | geometry.latitude Latitude | dictionary_read_underspecifiedLatitude of the service site's physical location | — |
| longitude Longitude | Text | Understood | geometry.longitude Longitude | dictionary_read_underspecifiedLongitude of the service site's physical loation | — |
| sitekey SiteKey | Text | Checked, no match | — | dictionary_readAn Identification Number assigned to tax preparation sites for internal tracking. | — |