| Variant | Download | Dictionary | Quality Report | Size |
|---|---|---|---|---|
| Master BMF (geocoded) | Download | Dictionary | Quality report | 3293.2 mb |
| Master BMF | Download | Dictionary | Quality report | 2899.1 mb |
BMF Data Catalog
The IRS Business Master File (BMF) is the authoritative registry of tax-exempt organizations in the United States. NCCS publishes BMF data in several forms; this catalog organizes them by what you’re trying to do.
For background on what the BMF contains and its scope limitations, see the BMF overview page.
Which dataset should I use?
| If you need… | Use | Why |
|---|---|---|
| One row per nonprofit, ever (1989–present) | Master BMF | Combines every vintage into a single longitudinal frame |
| A specific month’s snapshot (2023-06 or later) | Transformed monthly BMF | Cleaned and standardized; column schema is stable across months |
| A specific month’s snapshot (1989–2022) | Harmonized legacy BMF | Same column schema as transformed; aligns historical vintages |
| The unmodified IRS file | Raw monthly archive | Untouched IRS releases, for replication of upstream analysis |
| The original NCCS legacy file | Raw legacy archive | Original 501CX-NONPROFIT-PX vintages, for reproducibility only |
| Canonical county FIPS, or to roll up to metro areas | Geography crosswalks | Optional join layers for the geocoded BMF (TIGER 2023 / OMB 2023) |
Master BMF
One row per EIN spanning 1989 to present, with most-recent values for each organization plus first_vintage_ym, last_vintage_ym, and bmf_source to track provenance. This is the primary product for longitudinal analysis and as a sampling frame.
The geocoded variant is the recommended default — it carries the same row schema as the plain file plus lat/lon joined against a deduplicated address table.
Download by State/Territory
For users who only need a single state, the geocoded Master BMF is also published as per-state marts (50 states + DC, U.S. territories, APO/FPO military codes, Compact of Free Association nations, and a ZZ bucket for rows with no resolvable state). Each mart carries lat/lon and shares a schema and dictionary with the geocoded headline file above.
| Download Link | Size | State/Territory |
|---|---|---|
| Download | 44.5 mb | Alabama |
| Download | 9.7 mb | Alaska |
| Download | 52.3 mb | Arizona |
| Download | 28.6 mb | Arkansas |
| Download | 348.1 mb | California |
| Download | 61.8 mb | Colorado |
| Download | 39.6 mb | Connecticut |
| Download | 15.7 mb | Delaware |
| Download | 30.1 mb | District of Columbia |
| Download | 189.1 mb | Florida |
| Download | 102 mb | Georgia |
| Download | 15.7 mb | Hawaii |
| Download | 17.6 mb | Idaho |
| Download | 134.4 mb | Illinois |
| Download | 74.4 mb | Indiana |
| Download | 49.4 mb | Iowa |
| Download | 32.2 mb | Kansas |
| Download | 38.4 mb | Kentucky |
| Download | 42.4 mb | Louisiana |
| Download | 17 mb | Maine |
| Download | 73.4 mb | Maryland |
| Download | 74.7 mb | Massachusetts |
| Download | 98.8 mb | Michigan |
| Download | 67 mb | Minnesota |
| Download | 27 mb | Mississippi |
| Download | 75.4 mb | Missouri |
| Download | 19 mb | Montana |
| Download | 24.5 mb | Nebraska |
| Download | 22.9 mb | Nevada |
| Download | 15.7 mb | New Hampshire |
| Download | 89.7 mb | New Jersey |
| Download | 19.9 mb | New Mexico |
| Download | 201.2 mb | New York |
| Download | 97.6 mb | North Carolina |
| Download | 11.2 mb | North Dakota |
| Download | 130.9 mb | Ohio |
| Download | 38.9 mb | Oklahoma |
| Download | 45.1 mb | Oregon |
| Download | 136.4 mb | Pennsylvania |
| Download | 11.7 mb | Rhode Island |
| Download | 50.9 mb | South Carolina |
| Download | 12.7 mb | South Dakota |
| Download | 65.1 mb | Tennessee |
| Download | 247.2 mb | Texas |
| Download | 21.6 mb | Utah |
| Download | 11.1 mb | Vermont |
| Download | 90.1 mb | Virginia |
| Download | 73.3 mb | Washington |
| Download | 20.9 mb | West Virginia |
| Download | 66.4 mb | Wisconsin |
| Download | 9.8 mb | Wyoming |
| Download | 0.1 mb | American Samoa |
| Download | 0.3 mb | Guam |
| Download | 0.1 mb | Northern Mariana Islands |
| Download | 4.7 mb | Puerto Rico |
| Download | 1 mb | U.S. Virgin Islands |
| Download | 0 mb | Armed Forces Americas |
| Download | 0.3 mb | Armed Forces Europe |
| Download | 0.2 mb | Armed Forces Pacific |
| Download | 0 mb | Federated States of Micronesia |
| Download | 0 mb | Marshall Islands |
| Download | 0 mb | Palau |
| Download | 4.6 mb | Unknown / unmapped |
Access via S3
s3://nccsdata/geocoding/bmf-master/merged/ # Geocoded variant (recommended)
s3://nccsdata/master/bmf/ # Plain Master BMF
s3://nccsdata/master/bmf/state_marts/csv/ # Per-state geocoded marts
Monthly BMF
Cleaned, schema-stable monthly snapshots covering 1989 to the present. The transformed pipeline (2023-06+) and the harmonized legacy pipeline (1989-2022) write to different S3 prefixes but share a column schema, so you can stack them across the era boundary without reshaping.
Recent Releases
One row per release. The Download column links the CSV (canonical format); a parquet variant is also available for some months at the same S3 prefix.
| Year | Month | Pipeline | Download | Dictionary | Quality Report | Size |
|---|---|---|---|---|---|---|
| 2026 | 05 | Transformed | Download | Dictionary | Quality report | 1766.2 mb |
| 2026 | 03 | Transformed | Download | Dictionary | Quality report | 1712.8 mb |
| 2026 | 01 | Transformed | Download | Dictionary | Quality report | 1704.2 mb |
| 2025 | 12 | Transformed | Download | Dictionary | Quality report | 1702.4 mb |
| 2025 | 11 | Transformed | Download | Dictionary | Quality report | 1681.3 mb |
Browse Older Releases
The complete archive of every monthly release — data, dictionary, and quality report — is below. (There is no separate centralized index; this catalog is the canonical listing.)
Show all monthly releases (1989–present)
| Year | Month | Pipeline | Download | Dictionary | Quality Report | Size |
|---|---|---|---|---|---|---|
| 2026 | 05 | Transformed | Download | Dictionary | Quality report | 1766.2 mb |
| 2026 | 03 | Transformed | Download | Dictionary | Quality report | 1712.8 mb |
| 2026 | 01 | Transformed | Download | Dictionary | Quality report | 1704.2 mb |
| 2025 | 12 | Transformed | Download | Dictionary | Quality report | 1702.4 mb |
| 2025 | 11 | Transformed | Download | Dictionary | Quality report | 1681.3 mb |
| 2025 | 10 | Transformed | Download | Dictionary | Quality report | 1681.3 mb |
| 2025 | 09 | Transformed | Download | Dictionary | Quality report | 1667.8 mb |
| 2025 | 08 | Transformed | Download | Dictionary | Quality report | 1693 mb |
| 2025 | 07 | Transformed | Download | Dictionary | Quality report | 1685 mb |
| 2025 | 06 | Transformed | Download | Dictionary | Quality report | 1681.2 mb |
| 2025 | 05 | Transformed | Download | Dictionary | Quality report | 1679.2 mb |
| 2025 | 04 | Transformed | Download | Dictionary | Quality report | 1672 mb |
| 2025 | 03 | Transformed | Download | Dictionary | Quality report | 1672.1 mb |
| 2025 | 02 | Transformed | Download | Dictionary | Quality report | 1664.6 mb |
| 2025 | 01 | Transformed | Download | Dictionary | Quality report | 1664.6 mb |
| 2024 | 12 | Transformed | Download | Dictionary | Quality report | 1662.3 mb |
| 2024 | 11 | Transformed | Download | Dictionary | Quality report | 1657.1 mb |
| 2024 | 08 | Transformed | Download | Dictionary | Quality report | 1677.4 mb |
| 2024 | 07 | Transformed | Download | Dictionary | Quality report | 1669.2 mb |
| 2024 | 06 | Transformed | Download | Dictionary | Quality report | 1662.8 mb |
| 2024 | 04 | Transformed | Download | Dictionary | Quality report | 1649.8 mb |
| 2024 | 03 | Transformed | Download | Dictionary | Quality report | 1651.7 mb |
| 2024 | 02 | Transformed | Download | Dictionary | Quality report | 1645.8 mb |
| 2024 | 01 | Transformed | Download | Dictionary | Quality report | 1645.8 mb |
| 2023 | 12 | Transformed | Download | Dictionary | Quality report | 1644.1 mb |
| 2023 | 11 | Transformed | Download | Dictionary | Quality report | 1639.8 mb |
| 2023 | 10 | Transformed | Download | Dictionary | Quality report | 1633.1 mb |
| 2023 | 09 | Transformed | Download | Dictionary | Quality report | 1628.8 mb |
| 2023 | 08 | Transformed | Download | Dictionary | Quality report | 1252.9 mb |
| 2023 | 07 | Transformed | Download | Dictionary | Quality report | 1654.2 mb |
| 2023 | 06 | Transformed | Download | Dictionary | Quality report | 1621.9 mb |
| 2022 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 774.6 mb |
| 2022 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 773.4 mb |
| 2020 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 765.2 mb |
| 2019 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 763.1 mb |
| 2018 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 677.9 mb |
| 2016 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 821.2 mb |
| 2016 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 815.9 mb |
| 2016 | 03 | Harmonized legacy | Download | Dictionary | Quality report | 814.3 mb |
| 2016 | 02 | Harmonized legacy | Download | Dictionary | Quality report | 811.1 mb |
| 2015 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 804.4 mb |
| 2015 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 804.7 mb |
| 2015 | 09 | Harmonized legacy | Download | Dictionary | Quality report | 796.1 mb |
| 2015 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 801.6 mb |
| 2015 | 05 | Harmonized legacy | Download | Dictionary | Quality report | 795.3 mb |
| 2015 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 790.9 mb |
| 2015 | 02 | Harmonized legacy | Download | Dictionary | Quality report | 783.5 mb |
| 2014 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 777.2 mb |
| 2014 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 773 mb |
| 2014 | 09 | Harmonized legacy | Download | Dictionary | Quality report | 757.8 mb |
| 2014 | 06 | Harmonized legacy | Download | Dictionary | Quality report | 743.8 mb |
| 2014 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 741 mb |
| 2014 | 02 | Harmonized legacy | Download | Dictionary | Quality report | 666.8 mb |
| 2013 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 664.1 mb |
| 2013 | 10 | Harmonized legacy | Download | Dictionary | Quality report | 662.9 mb |
| 2013 | 09 | Harmonized legacy | Download | Dictionary | Quality report | 662.4 mb |
| 2013 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 661.8 mb |
| 2013 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 671.8 mb |
| 2013 | 06 | Harmonized legacy | Download | Dictionary | Quality report | 670.5 mb |
| 2013 | 05 | Harmonized legacy | Download | Dictionary | Quality report | 670.7 mb |
| 2013 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 670.2 mb |
| 2013 | 03 | Harmonized legacy | Download | Dictionary | Quality report | 668.2 mb |
| 2013 | 02 | Harmonized legacy | Download | Dictionary | Quality report | 677.2 mb |
| 2012 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 685.3 mb |
| 2012 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 684.2 mb |
| 2012 | 10 | Harmonized legacy | Download | Dictionary | Quality report | 683.8 mb |
| 2012 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 683.2 mb |
| 2012 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 682.6 mb |
| 2012 | 06 | Harmonized legacy | Download | Dictionary | Quality report | 684.3 mb |
| 2012 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 678.7 mb |
| 2012 | 03 | Harmonized legacy | Download | Dictionary | Quality report | 680.3 mb |
| 2012 | 02 | Harmonized legacy | Download | Dictionary | Quality report | 674.5 mb |
| 2011 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 691.5 mb |
| 2011 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 690.9 mb |
| 2011 | 10 | Harmonized legacy | Download | Dictionary | Quality report | 689.2 mb |
| 2011 | 09 | Harmonized legacy | Download | Dictionary | Quality report | 688.6 mb |
| 2011 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 688.3 mb |
| 2011 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 689 mb |
| 2011 | 06 | Harmonized legacy | Download | Dictionary | Quality report | 759.2 mb |
| 2010 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 765.3 mb |
| 2010 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 758.1 mb |
| 2010 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 756.2 mb |
| 2010 | 05 | Harmonized legacy | Download | Dictionary | Quality report | 755.6 mb |
| 2010 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 753.3 mb |
| 2010 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 713.5 mb |
| 2009 | 10 | Harmonized legacy | Download | Dictionary | Quality report | 708.1 mb |
| 2009 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 701.4 mb |
| 2009 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 694.3 mb |
| 2009 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 687.5 mb |
| 2008 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 684.2 mb |
| 2008 | 10 | Harmonized legacy | Download | Dictionary | Quality report | 682.5 mb |
| 2008 | 06 | Harmonized legacy | Download | Dictionary | Quality report | 673.9 mb |
| 2008 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 660.2 mb |
| 2008 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 658.6 mb |
| 2007 | 09 | Harmonized legacy | Download | Dictionary | Quality report | 666.1 mb |
| 2007 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 664.4 mb |
| 2007 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 662.4 mb |
| 2006 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 647.1 mb |
| 2006 | 05 | Harmonized legacy | Download | Dictionary | Quality report | 601.6 mb |
| 2006 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 604.7 mb |
| 2005 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 602.5 mb |
| 2005 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 599.4 mb |
| 2004 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 597.2 mb |
| 2004 | 04 | Harmonized legacy | Download | Dictionary | Quality report | 587.7 mb |
| 2003 | 11 | Harmonized legacy | Download | Dictionary | Quality report | 584.5 mb |
| 2003 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 575.3 mb |
| 2003 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 564.7 mb |
| 2002 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 554.8 mb |
| 2002 | 01 | Harmonized legacy | Download | Dictionary | Quality report | 587.2 mb |
| 2001 | 07 | Harmonized legacy | Download | Dictionary | Quality report | 527.1 mb |
| 2000 | 05 | Harmonized legacy | Download | Dictionary | Quality report | 506.9 mb |
| 1999 | 12 | Harmonized legacy | Download | Dictionary | Quality report | 505.3 mb |
| 1998 | 09 | Harmonized legacy | Download | Dictionary | Quality report | 497.1 mb |
| 1997 | 10 | Harmonized legacy | Download | Dictionary | Quality report | 483.9 mb |
| 1996 | 06 | Harmonized legacy | Download | Dictionary | Quality report | 462.8 mb |
| 1995 | 08 | Harmonized legacy | Download | Dictionary | Quality report | 441.1 mb |
| 1989 | 06 | Harmonized legacy | Download | Dictionary | Quality report | 249.5 mb |
Access via S3
s3://nccsdata/processed/bmf/{YYYY_MM}/ # Transformed (2023-06 -> present)
s3://nccsdata/processed/bmf-legacy/{YYYY_MM}/ # Harmonized legacy (1989-06 -> 2022)
Each month directory contains:
bmf_{YYYY_MM}_processed.csv(or.parquet) — the databmf_{YYYY_MM}_data_dictionary.csv— column definitionsbmf_{YYYY_MM}_quality_report.json— machine-readable quality metrics
Geography Crosswalks
Optional join layers for the geocoded Master BMF that turn a messy address into clean geography: attach a canonical county FIPS code to each organization, then roll that county up to its metro/micropolitan area. Reach for these when you need a collision-proof geographic key — Baltimore city (24510) is not Baltimore County (24005) — or want to aggregate nonprofits to metro areas.
These rows link the canonical S3 copies — the same files the pipeline consumes — so the catalog never drifts from the machine contract. The CSV is for humans and spreadsheets; the parquet is the machine-typed copy; each _manifest.json records the row count, sha256, and geography vintage.
How the crosswalks chain together
These are derived, multi-hop artifacts: you don’t start from county_fips, you arrive at it. The geocoded BMF gives you a dirty county label and a lat/lon; the crosswalks walk that to a metro area:
- County label → county FIPS. Join the county FIPS crosswalk on
(geo_state_abbr, geo_county)— the crosswalk side of the county key isgeo_county_raw— to get a canonical 5-chargeo_county_fips. - Connecticut detour (by coordinate). CT replaced its counties with planning regions in 2022, so CT’s old county labels are deferred in step 1 (
resolution = deferred_ct_planning_region). Resolve them instead from the org’s coordinate: round lat/lon to 2 decimals and join the CT planning-region crosswalk on(lat2, lon2)to get the planning-region FIPS (09110–09190). - County FIPS → metro area. Chain the CBSA crosswalk on
county_fipsto attach the metro/micropolitan area (and Combined Statistical Area, where applicable). The CBSA crosswalk already keys CT on the new planning-region FIPS, so step 2 lands cleanly here.
All three share one geography vintage (Census TIGER 2023 / OMB 2023) and are designed to be chained — present them together, not in isolation. FIPS/CBSA/CSA codes are strings; preserve leading zeros. Unresolved/ambiguous county labels and rural counties carry NA codes by design, not as missing data.
| Crosswalk | Role in the chain | Geography vintage | Rows | Download | Machine copy | Manifest |
|---|---|---|---|---|---|---|
| County FIPS | label → FIPS (hop 1) | Census TIGER 2023 | 3,635 (3,615 resolved, 99.4%) | CSV | Parquet | manifest.json |
| CT planning-region | CT by coordinate (hop 2) | Census TIGER 2023 | 14,271 (coordinate grid) | CSV | Parquet | manifest.json |
| CBSA (metro/micro) | FIPS → metro area (hop 3) | OMB 2023 delineations | 3,228 (1,915 in a CBSA, 1,313 rural) | CSV | Parquet | manifest.json |
Geography vintage matters. County boundaries shift — Connecticut replaced its counties with planning regions in 2022 — so a stale vintage is a silent trap. All three crosswalks are built against the 2023 vintage (Census TIGER 2023 boundaries; OMB 2023 CBSA delineations) and carry the year in-column (
tiger_year/delineation_year). Filter against the boundary year you intend, and don’t mix vintages across the chain.
County FIPS crosswalk
Maps the geocoder’s dirty county label (geo_county) to the canonical Census county FIPS GEOID + NAMELSAD, so you can canonicalize names and filter by a collision-proof key. 3,635 rows; 3,615 resolved (99.4%) — the remainder are 8 ambiguous city-vs-county labels, 8 CT labels deferred to the planning-region crosswalk, and 4 unresolved.
| Column | Description |
|---|---|
geo_state_abbr |
2-letter state postal code (join key) |
geo_county_raw |
The geocoder’s raw, dirty county label (join key) |
geo_county_fips |
Canonical 5-char county FIPS GEOID (string — keep leading zeros) |
state_fips |
2-char state FIPS (string) |
geo_county_canonical |
Canonical county name (NAMELSAD) |
resolution |
How the raw label was matched (resolved, ambiguous, unresolved, deferred_ct_planning_region) |
tiger_year |
Census TIGER boundary vintage (2023) |
CT planning-region crosswalk
Connecticut’s companion to the county crosswalk. Because CT’s old county labels can’t be trusted post-2022, this resolves CT geography from the organization’s coordinate instead of its label. It’s a lookup grid — one row per ~1 km cell (lat/lon rounded to 2 decimals) mapped to one of CT’s 9 planning regions (FIPS 09110–09190). 14,271 rows.
| Column | Description |
|---|---|
geo_state_abbr |
Always CT |
lat2, lon2 |
Latitude/longitude rounded to 2 decimals (the join key — round the org’s coordinate the same way) |
geo_county_fips |
CT planning-region FIPS (09110–09190; joins to the CBSA crosswalk’s county_fips) |
state_fips |
09 |
geo_county_canonical |
Planning-region name |
area_share |
Fraction of the cell falling in this planning region (1 when the cell sits fully inside one region) |
straddle |
TRUE where a cell straddles a region boundary (529 cells); pick the row with the largest area_share |
tiger_year |
Census TIGER boundary vintage (2023) |
CBSA crosswalk
The metro/micropolitan rollup. Maps each county FIPS to its OMB Core-Based Statistical Area, so you can aggregate nonprofits to metro areas. 3,228 rows (one per county GEOID): 1,915 counties fall in a CBSA — 1,252 metropolitan, 663 micropolitan, across 935 distinct CBSAs (184 of which are grouped into Combined Statistical Areas) — and 1,313 rural counties carry NA.
| Column | Description |
|---|---|
county_fips |
5-char county FIPS (string; joins to the county crosswalk’s geo_county_fips) |
county_name |
County name |
cbsa_code |
CBSA code (string — keep leading zeros) |
cbsa_title |
CBSA name |
cbsa_type |
Metropolitan Statistical Area or Micropolitan Statistical Area |
central_outlying |
Whether the county is central or outlying within the CBSA |
csa_code |
Combined Statistical Area code (string), if any |
csa_title |
Combined Statistical Area name, if any |
delineation_year |
OMB delineation vintage (2023) |
Caveats
- FIPS, CBSA, and CSA codes are strings. Opening a CSV directly in Excel may strip leading zeros on display — read these columns as text.
NAis a value, not a gap. Rural counties (those in no CBSA) carryNACBSA/CSA codes by design; that’s the correct value. Likewise, ambiguous city-vs-county labels (a bare “Baltimore” or “Roanoke”) are intentionally left unresolved upstream in the county crosswalk.
Access via S3
s3://nccsdata/crosswalks/county-fips/ # county FIPS crosswalk (.csv + .parquet + _manifest.json)
s3://nccsdata/crosswalks/ct-planning-region/ # CT planning-region crosswalk (.csv + .parquet + _manifest.json)
s3://nccsdata/crosswalks/cbsa/ # CBSA crosswalk (.csv + .parquet + _manifest.json)
Each prefix is flat — the vintage is carried in-column and in _manifest.json (use its sha256 to detect changes), not in the path.
Full producer documentation: County FIPS crosswalk · CBSA crosswalk · CT planning-region crosswalk.
Raw Archives
Show raw IRS and NCCS files (for reproducibility only — most users want the products above)
Raw Monthly BMF
Untouched IRS monthly releases. Use these when you need to replicate analysis built on a specific raw file or verify upstream NCCS transformations.
URL pattern:
https://nccsdata.s3.us-east-1.amazonaws.com/raw/bmf/{YYYY-MM}-BMF.csv
Replace {YYYY-MM} with the desired vintage (e.g. 2026-01). See the IRS BMF documentation for the original schema.
Raw Legacy BMF
Original NCCS 501CX-NONPROFIT-PX vintages. Each row links the unmodified file and its profile (data dictionary). Most users should prefer the harmonized legacy BMF above — it has the same schema as the transformed monthly product.
| Year | Month | File | Download | Profile | Size |
|---|---|---|---|---|---|
| 2022 | 08 | BMF-2022-08-501CX-NONPROFIT-PX.csv | Download | Profile | 345.8 mb |
| 2022 | 01 | BMF-2022-01-501CX-NONPROFIT-PX.csv | Download | Profile | 377.1 mb |
| 2020 | 04 | BMF-2020-04-501CX-NONPROFIT-PX.csv | Download | Profile | 375.9 mb |
| 2019 | 08 | BMF-2019-08-501CX-NONPROFIT-PX.csv | Download | Profile | 374.9 mb |
| 2018 | 12 | BMF-2018-12-501CX-NONPROFIT-PX.csv | Download | Profile | 330.5 mb |
| 2017 | 12 | BMF-2017-12-501CX-NONPROFIT-PX.csv | Download | Profile | 339.5 mb |
| 2017 | 09 | BMF-2017-09-501CX-NONPROFIT-PX.csv | Download | Profile | 344.8 mb |
| 2016 | 08 | BMF-2016-08-501CX-NONPROFIT-PX.csv | Download | Profile | 368.3 mb |
| 2016 | 04 | BMF-2016-04-501CX-NONPROFIT-PX.csv | Download | Profile | 368.4 mb |
| 2016 | 03 | BMF-2016-03-501CX-NONPROFIT-PX.csv | Download | Profile | 367.7 mb |
| 2016 | 02 | BMF-2016-02-501CX-NONPROFIT-PX.csv | Download | Profile | 366.4 mb |
| 2015 | 12 | BMF-2015-12-501CX-NONPROFIT-PX.csv | Download | Profile | 363.7 mb |
| 2015 | 11 | BMF-2015-11-501CX-NONPROFIT-PX.csv | Download | Profile | 363.5 mb |
| 2015 | 09 | BMF-2015-09-501CX-NONPROFIT-PX.csv | Download | Profile | 359.9 mb |
| 2015 | 07 | BMF-2015-07-501CX-NONPROFIT-PX.csv | Download | Profile | 361.1 mb |
| 2015 | 05 | BMF-2015-05-501CX-NONPROFIT-PX.csv | Download | Profile | 358.5 mb |
| 2015 | 04 | BMF-2015-04-501CX-NONPROFIT-PX.csv | Download | Profile | 356.7 mb |
| 2015 | 02 | BMF-2015-02-501CX-NONPROFIT-PX.csv | Download | Profile | 353.5 mb |
| 2014 | 12 | BMF-2014-12-501CX-NONPROFIT-PX.csv | Download | Profile | 351.1 mb |
| 2014 | 11 | BMF-2014-11-501CX-NONPROFIT-PX.csv | Download | Profile | 349.5 mb |
| 2014 | 09 | BMF-2014-09-501CX-NONPROFIT-PX.csv | Download | Profile | 343.2 mb |
| 2014 | 06 | BMF-2014-06-501CX-NONPROFIT-PX.csv | Download | Profile | 337.5 mb |
| 2014 | 04 | BMF-2014-04-501CX-NONPROFIT-PX.csv | Download | Profile | 336.3 mb |
| 2014 | 02 | BMF-2014-02-501CX-NONPROFIT-PX.csv | Download | Profile | 334.5 mb |
| 2013 | 12 | BMF-2013-12-501CX-NONPROFIT-PX.csv | Download | Profile | 331.7 mb |
| 2013 | 10 | BMF-2013-10-501CX-NONPROFIT-PX.csv | Download | Profile | 339.7 mb |
| 2013 | 09 | BMF-2013-09-501CX-NONPROFIT-PX.csv | Download | Profile | 331.2 mb |
| 2013 | 08 | BMF-2013-08-501CX-NONPROFIT-PX.csv | Download | Profile | 330.7 mb |
| 2013 | 07 | BMF-2013-07-501CX-NONPROFIT-PX.csv | Download | Profile | 335.3 mb |
| 2013 | 06 | BMF-2013-06-501CX-NONPROFIT-PX.csv | Download | Profile | 334.7 mb |
| 2013 | 05 | BMF-2013-05-501CX-NONPROFIT-PX.csv | Download | Profile | 334.2 mb |
| 2013 | 04 | BMF-2013-04-501CX-NONPROFIT-PX.csv | Download | Profile | 333.9 mb |
| 2013 | 03 | BMF-2013-03-501CX-NONPROFIT-PX.csv | Download | Profile | 332.3 mb |
| 2013 | 02 | BMF-2013-02-501CX-NONPROFIT-PX.csv | Download | Profile | 337 mb |
| 2012 | 12 | BMF-2012-12-501CX-NONPROFIT-PX.csv | Download | Profile | 339.4 mb |
| 2012 | 11 | BMF-2012-11-501CX-NONPROFIT-PX.csv | Download | Profile | 338.9 mb |
| 2012 | 10 | BMF-2012-10-501CX-NONPROFIT-PX.csv | Download | Profile | 338.7 mb |
| 2012 | 08 | BMF-2012-08-501CX-NONPROFIT-PX.csv | Download | Profile | 338.7 mb |
| 2012 | 07 | BMF-2012-07-501CX-NONPROFIT-PX.csv | Download | Profile | 338.4 mb |
| 2012 | 06 | BMF-2012-06-501CX-NONPROFIT-PX.csv | Download | Profile | 339.2 mb |
| 2012 | 04 | BMF-2012-04-501CX-NONPROFIT-PX.csv | Download | Profile | 310 mb |
| 2012 | 03 | BMF-2012-03-501CX-NONPROFIT-PX.csv | Download | Profile | 336.1 mb |
| 2012 | 02 | BMF-2012-02-501CX-NONPROFIT-PX.csv | Download | Profile | 308.2 mb |
| 2011 | 12 | BMF-2011-12-501CX-NONPROFIT-PX.csv | Download | Profile | 342.6 mb |
| 2011 | 11 | BMF-2011-11-501CX-NONPROFIT-PX.csv | Download | Profile | 342.2 mb |
| 2011 | 10 | BMF-2011-10-501CX-NONPROFIT-PX.csv | Download | Profile | 341.4 mb |
| 2011 | 09 | BMF-2011-09-501CX-NONPROFIT-PX.csv | Download | Profile | 340.8 mb |
| 2011 | 08 | BMF-2011-08-501CX-NONPROFIT-PX.csv | Download | Profile | 342.1 mb |
| 2011 | 07 | BMF-2011-07-501CX-NONPROFIT-PX.csv | Download | Profile | 340.9 mb |
| 2011 | 06 | BMF-2011-06-501CX-NONPROFIT-PX.csv | Download | Profile | 338.5 mb |
| 2010 | 11 | BMF-2010-11-501CX-NONPROFIT-PX.csv | Download | Profile | 374.9 mb |
| 2010 | 08 | BMF-2010-08-501CX-NONPROFIT-PX.csv | Download | Profile | 382.1 mb |
| 2010 | 07 | BMF-2010-07-501CX-NONPROFIT-PX.csv | Download | Profile | 415.5 mb |
| 2010 | 05 | BMF-2010-05-501CX-NONPROFIT-PX.csv | Download | Profile | 411.6 mb |
| 2010 | 04 | BMF-2010-04-501CX-NONPROFIT-PX.csv | Download | Profile | 410.8 mb |
| 2010 | 01 | BMF-2010-01-501CX-NONPROFIT-PX.csv | Download | Profile | 380.4 mb |
| 2009 | 10 | BMF-2009-10-501CX-NONPROFIT-PX.csv | Download | Profile | 382.5 mb |
| 2009 | 07 | BMF-2009-07-501CX-NONPROFIT-PX.csv | Download | Profile | 306.7 mb |
| 2009 | 04 | BMF-2009-04-501CX-NONPROFIT-PX.csv | Download | Profile | 303.4 mb |
| 2009 | 01 | BMF-2009-01-501CX-NONPROFIT-PX.csv | Download | Profile | 323.3 mb |
| 2008 | 12 | BMF-2008-12-501CX-NONPROFIT-PX.csv | Download | Profile | 299.1 mb |
| 2008 | 10 | BMF-2008-10-501CX-NONPROFIT-PX.csv | Download | Profile | 304.9 mb |
| 2008 | 06 | BMF-2008-06-501CX-NONPROFIT-PX.csv | Download | Profile | 293.3 mb |
| 2008 | 04 | BMF-2008-04-501CX-NONPROFIT-PX.csv | Download | Profile | 291.1 mb |
| 2008 | 01 | BMF-2008-01-501CX-NONPROFIT-PX.csv | Download | Profile | 286.1 mb |
| 2007 | 09 | BMF-2007-09-501CX-NONPROFIT-PX.csv | Download | Profile | 297.7 mb |
| 2007 | 04 | BMF-2007-04-501CX-NONPROFIT-PX.csv | Download | Profile | 304.6 mb |
| 2007 | 01 | BMF-2007-01-501CX-NONPROFIT-PX.csv | Download | Profile | 311 mb |
| 2006 | 11 | BMF-2006-11-501CX-NONPROFIT-PX.csv | Download | Profile | 316.3 mb |
| 2006 | 05 | BMF-2006-05-501CX-NONPROFIT-PX.csv | Download | Profile | 316.8 mb |
| 2006 | 01 | BMF-2006-01-501CX-NONPROFIT-PX.csv | Download | Profile | 318.4 mb |
| 2005 | 11 | BMF-2005-11-501CX-NONPROFIT-PX.csv | Download | Profile | 314.2 mb |
| 2005 | 07 | BMF-2005-07-501CX-NONPROFIT-PX.csv | Download | Profile | 306.7 mb |
| 2004 | 12 | BMF-2004-12-501CX-NONPROFIT-PX.csv | Download | Profile | 300.3 mb |
| 2004 | 04 | BMF-2004-04-501CX-NONPROFIT-PX.csv | Download | Profile | 308.9 mb |
| 2003 | 11 | BMF-2003-11-501CX-NONPROFIT-PX.csv | Download | Profile | 309.3 mb |
| 2003 | 07 | BMF-2003-07-501CX-NONPROFIT-PX.csv | Download | Profile | 314.2 mb |
| 2003 | 01 | BMF-2003-01-501CX-NONPROFIT-PX.csv | Download | Profile | 285.5 mb |
| 2002 | 07 | BMF-2002-07-501CX-NONPROFIT-PX.csv | Download | Profile | 286.7 mb |
| 2002 | 01 | BMF-2002-01-501CX-NONPROFIT-PX.csv | Download | Profile | 289.3 mb |
| 2001 | 07 | BMF-2001-07-501CX-NONPROFIT-PX.csv | Download | Profile | 272.2 mb |
| 2000 | 05 | BMF-2000-05-501CX-NONPROFIT-PX.csv | Download | Profile | 262.5 mb |
| 1999 | 12 | BMF-1999-12-501CX-NONPROFIT-PX.csv | Download | Profile | 253 mb |
| 1998 | 09 | BMF-1998-09-501CX-NONPROFIT-PX.csv | Download | Profile | 249 mb |
| 1997 | 10 | BMF-1997-10-501CX-NONPROFIT-PX.csv | Download | Profile | 242.2 mb |
| 1996 | 06 | BMF-1996-06-501CX-NONPROFIT-PX.csv | Download | Profile | 236.6 mb |
| 1995 | 08 | BMF-1995-08-501CX-NONPROFIT-PX.csv | Download | Profile | 223.4 mb |
| 1989 | 06 | BMF-1989-06-501CX-NONPROFIT-PX.csv | Download | Profile | 123.3 mb |
Documentation & Support
- BMF Processing Guide — how NCCS cleans and harmonizes BMF data
- Quality Reports Index — every per-month and per-product quality report
- Source repository — pipeline code and issue tracker
- Contact — questions, corrections, data requests
Last verified: 2026-06-05