{
  "site": "lihtc.loans",
  "license": "CC-BY-4.0 compilation; underlying HUD data public domain",
  "attribution": "Data: LIHTC Atlas (lihtc.loans)",
  "datasets": [
    {
      "name": "mtsp",
      "title": "HUD FY2026 MTSP income limits (20% to 80% AMI, 1 to 8 persons) and maximum gross rents, per county or New England town",
      "file_csv": "mtsp-limits.csv",
      "file_json": "mtsp-limits.json",
      "rows": 4764,
      "as_of": "FY2026",
      "source": "HUD, FY2026 Multifamily Tax Subsidy Project income limits (MTSP-Data-FY26.xlsx and MTSP-IncAvg-Data-FY26.xlsx, dated 2026-03-27)",
      "source_url": "https://www.huduser.gov/portal/datasets/mtsp.html",
      "key": "fips",
      "watch": [
        "median_family_income",
        "lim20_1p",
        "lim20_2p",
        "lim20_3p",
        "lim20_4p",
        "lim20_5p",
        "lim20_6p",
        "lim20_7p",
        "lim20_8p",
        "lim30_1p",
        "lim30_2p",
        "lim30_3p",
        "lim30_4p",
        "lim30_5p",
        "lim30_6p",
        "lim30_7p",
        "lim30_8p",
        "lim40_1p",
        "lim40_2p",
        "lim40_3p",
        "lim40_4p",
        "lim40_5p",
        "lim40_6p",
        "lim40_7p",
        "lim40_8p",
        "lim50_1p",
        "lim50_2p",
        "lim50_3p",
        "lim50_4p",
        "lim50_5p",
        "lim50_6p",
        "lim50_7p",
        "lim50_8p",
        "lim60_1p",
        "lim60_2p",
        "lim60_3p",
        "lim60_4p",
        "lim60_5p",
        "lim60_6p",
        "lim60_7p",
        "lim60_8p",
        "lim70_1p",
        "lim70_2p",
        "lim70_3p",
        "lim70_4p",
        "lim70_5p",
        "lim70_6p",
        "lim70_7p",
        "lim70_8p",
        "lim80_1p",
        "lim80_2p",
        "lim80_3p",
        "lim80_4p",
        "lim80_5p",
        "lim80_6p",
        "lim80_7p",
        "lim80_8p",
        "hera50_1p",
        "hera50_2p",
        "hera50_3p",
        "hera50_4p",
        "hera50_5p",
        "hera50_6p",
        "hera50_7p",
        "hera50_8p",
        "hera60_1p",
        "hera60_2p",
        "hera60_3p",
        "hera60_4p",
        "hera60_5p",
        "hera60_6p",
        "hera60_7p",
        "hera60_8p"
      ],
      "record_prefix": "mtsp",
      "columns": [
        "fips",
        "county_fips",
        "state",
        "county",
        "place",
        "hud_area_code",
        "hud_area_name",
        "metro",
        "median_family_income",
        "lim20_1p",
        "lim20_2p",
        "lim20_3p",
        "lim20_4p",
        "lim20_5p",
        "lim20_6p",
        "lim20_7p",
        "lim20_8p",
        "lim30_1p",
        "lim30_2p",
        "lim30_3p",
        "lim30_4p",
        "lim30_5p",
        "lim30_6p",
        "lim30_7p",
        "lim30_8p",
        "lim40_1p",
        "lim40_2p",
        "lim40_3p",
        "lim40_4p",
        "lim40_5p",
        "lim40_6p",
        "lim40_7p",
        "lim40_8p",
        "lim50_1p",
        "lim50_2p",
        "lim50_3p",
        "lim50_4p",
        "lim50_5p",
        "lim50_6p",
        "lim50_7p",
        "lim50_8p",
        "lim60_1p",
        "lim60_2p",
        "lim60_3p",
        "lim60_4p",
        "lim60_5p",
        "lim60_6p",
        "lim60_7p",
        "lim60_8p",
        "lim70_1p",
        "lim70_2p",
        "lim70_3p",
        "lim70_4p",
        "lim70_5p",
        "lim70_6p",
        "lim70_7p",
        "lim70_8p",
        "lim80_1p",
        "lim80_2p",
        "lim80_3p",
        "lim80_4p",
        "lim80_5p",
        "lim80_6p",
        "lim80_7p",
        "lim80_8p",
        "hera_special",
        "hera50_1p",
        "hera50_2p",
        "hera50_3p",
        "hera50_4p",
        "hera50_5p",
        "hera50_6p",
        "hera50_7p",
        "hera50_8p",
        "hera60_1p",
        "hera60_2p",
        "hera60_3p",
        "hera60_4p",
        "hera60_5p",
        "hera60_6p",
        "hera60_7p",
        "hera60_8p",
        "rent20_0br",
        "rent20_1br",
        "rent20_2br",
        "rent20_3br",
        "rent20_4br",
        "rent20_5br",
        "rent30_0br",
        "rent30_1br",
        "rent30_2br",
        "rent30_3br",
        "rent30_4br",
        "rent30_5br",
        "rent40_0br",
        "rent40_1br",
        "rent40_2br",
        "rent40_3br",
        "rent40_4br",
        "rent40_5br",
        "rent50_0br",
        "rent50_1br",
        "rent50_2br",
        "rent50_3br",
        "rent50_4br",
        "rent50_5br",
        "rent60_0br",
        "rent60_1br",
        "rent60_2br",
        "rent60_3br",
        "rent60_4br",
        "rent60_5br",
        "rent70_0br",
        "rent70_1br",
        "rent70_2br",
        "rent70_3br",
        "rent70_4br",
        "rent70_5br",
        "rent80_0br",
        "rent80_1br",
        "rent80_2br",
        "rent80_3br",
        "rent80_4br",
        "rent80_5br"
      ],
      "derived": "rent* columns: 30% of the limit for 1 person (studio) or 1.5 per bedroom, adjacent sizes averaged, /12, rounded down (IRS Publication 5913). Computed by this site, not published by HUD."
    },
    {
      "name": "qct-dda",
      "title": "HUD 2027 Qualified Census Tracts and Difficult Development Areas (Small DDA ZCTAs, nonmetropolitan DDA counties)",
      "file_csv": "qct-dda.csv",
      "file_json": "qct-dda.json",
      "rows": 17482,
      "as_of": "2027",
      "source": "HUD, 2027 QCT and DDA designations (QCT2027.csv; 2027 DDAs: Data Used to Designate), Federal Register 2026-10-06, FR Doc. 2026-20390",
      "source_url": "https://www.huduser.gov/portal/datasets/qct.html",
      "key": "id",
      "watch": [
        "designation",
        "dda_area"
      ],
      "record_prefix": "qctdda",
      "columns": [
        "id",
        "year",
        "designation",
        "geo_type",
        "geoid",
        "state_fips",
        "county_fips",
        "dda_area"
      ],
      "counts": {
        "qct": 14539,
        "small_dda_zcta": 2657,
        "nonmetro_dda_county": 286
      }
    },
    {
      "name": "lihtc-properties",
      "title": "HUD LIHTC database properties still monitored, in cities with five or more (the properties on this site's city pages)",
      "file_csv": "lihtc-properties.csv",
      "file_json": "lihtc-properties.json",
      "rows": 32256,
      "as_of": "LIHTCPUB 2024 (revised 2026-05-28)",
      "source": "HUD, Low-Income Housing Tax Credit database, LIHTCPUB release revised 2026-05-28 (placed in service 1987 to 2024)",
      "source_url": "https://www.huduser.gov/portal/datasets/lihtc/property.html",
      "columns": [
        "state",
        "city",
        "name",
        "address",
        "zip",
        "county_fips",
        "units",
        "li_units",
        "units_0br",
        "units_1br",
        "units_2br",
        "units_3br",
        "units_4br",
        "placed_in_service",
        "senior",
        "family"
      ],
      "excluded": "Properties HUD flags as no longer monitored, properties in cities with fewer than five, owner and contact fields."
    }
  ]
}