Partnership Form 1065 Ordinary Income by State (IRS SOI Averages)

Original research · IRS SOI partnerships (Form 1065) · Tax Year 2023 · Published September 16, 2026 · Companion to sole-prop net profit by state

Form 1065 ordinary-income averages from IRS SOI — not a partnership tax tutorial. This page maps IRS Statistics of Income (SOI) state × 3-digit industry averages of partnership ordinary business income (Form 1065) for tax year 2023 — a different map than Schedule C net profit. Across admin/support, specialty trades, social assistance, and personal/laundry services, high-receipt states frequently miss the top tier for average ordinary income — and miss the top tier for margin even more often. For specialty trade contractors, 0 of 10 high-receipt states also rank in the top 10 for ordinary-income margin (Spearman ≈ −0.47). Only 1–3 of 10 top sole-prop average-net states also land in the partnership top 10. Not tax advice and not a Form 1065 how-to — not Schedule C profit, NES receipts, QCEW pay, or a “best state” score.

We use IRS Statistics of Income unincorporated business state tables — Table 2 partnerships — for Tax Year 2023 (workbook confirmed current as of September 16, 2026). Metrics: average ordinary business income (Form 1065 line 22 ÷ number of Forms 1065) and margin (ordinary income ÷ business receipts). The finest published state×industry grain is 3-digit NAICS. Related research: sole prop net profit by state, nonemployer share by state, and employer pay by state.

Key findings

  • U.S. average ordinary income ladder (TY2023): specialty trade $140,750 → admin & support $132,551 → social assistance $66,992 → personal & laundry $26,164. Partnership margins cluster around 5–8% — far below Schedule C margins for the same codes (15.1%–33.0%).
  • Hypothesis supported — high receipts ≠ high partnership margin. Among the 10 states with the highest average receipts, specialty trade keeps 0/10 in the top-10 margin list (Spearman receipts↔margin -0.47). Admin & support keeps just 1/10 on margin.
  • High sole-prop states are not reliably high partnership states. Top-10 average-net sole-prop states overlap the partnership top-10 average-ordinary list in only 3/10 (specialty trade), 3/10 (admin & support), and 1/10 (personal & laundry). Different legal/tax universes.
  • State spreads are large; some averages are negative. Specialty trade average ordinary runs from $-152,300 (District of Columbia) to $324,845 (Nevada). Negative cell averages are real published totals — not suppressions.
  • Codes are coarse; social assistance has many suppressions. 561/238/624/812 cannot isolate cleaning, HVAC, daycare, or salons. Social assistance has 17 suppressed states (ranked on 34 published cells only). Suppressions (d) are never treated as zero.

U.S. baselines and state ranges

Partnerships — U.S. averages, sole-prop margin comparison, and state ranges (IRS SOI TY2023)
Industry NAICS Forms 1065 U.S. avg ordinary PA margin Sole-prop margin Avg-ordinary spread Margin spread Suppressed states Highest avg Lowest avg
Specialty Trade Contractors 238 88,654 $140,750 7.0% 15.1% $477,146 37.0 pp 0 Nevada ($324,845) District of Columbia ($-152,300)
Administrative and Support Services 561 74,091 $132,551 7.8% 22.3% $451,444 28.7 pp 2 New Jersey ($436,405) South Carolina ($-15,039)
Social Assistance 624 10,519 $66,992 7.6% 33.0% $136,354 16.4 pp 17 Indiana ($142,439) North Dakota ($6,085)
Personal and Laundry Services 812 92,354 $26,164 5.4% 24.9% $107,765 18.8 pp 0 District of Columbia ($104,811) Arkansas ($-2,953)

Not a ranking of “best states.” Higher average ordinary income can reflect mix, scale, costs, or filing patterns — not a recommendation to relocate. Partnership ordinary income ≠ Schedule C net profit.

Receipts ≠ ordinary income (and ≠ margin)

Average receipts and average ordinary income move together more than receipts and margin do. A state can look “busy” on partnership receipts while keeping less of each dollar as ordinary business income.

Bar chart of top-10 overlaps between high-receipt, high partnership-income, and high sole-prop states
How often top-10 average-receipts states also land in top-10 average ordinary income or margin — and how often top partnership averages match top sole-prop averages.
Scatter plot of average receipts versus ordinary-income margin for specialty trade partnerships by state
Specialty trade (NAICS 238): average receipts vs ordinary-income margin by state. Correlation ≈ -0.47.

How this differs from the sole-prop companion

Grouped bars comparing U.S. Schedule C profit margins with partnership ordinary-income margins for the same 3-digit industries
U.S. margins for the same 3-digit codes: Schedule C (sole props) vs Form 1065 ordinary income (partnerships).
  • Different forms: Schedule C line 31 net profit vs Form 1065 line 22 ordinary business income.
  • Different filers: Nonfarm sole proprietorships vs partnerships (including many LLCs taxed as partnerships — not LLCs taxed as C/S corps).
  • Different scale: Partnership averages are typically much larger dollars per return than Schedule C averages, with thinner margins.
  • Different state ranks: See the table’s sole-prop columns and the overlap chart — high Schedule C margin states often fail to lead partnership rankings.

Read the companion study: Where Sole Props Keep More of What They Take In.

Charts

U.S. average Form 1065 ordinary business income by 3-digit industry for tax year 2023
U.S. average ordinary business income per Form 1065 by industry group.
Highest and lowest average ordinary income states for specialty trade partnerships
Specialty trade — highest and lowest average ordinary income states.
Highest and lowest average ordinary income states for administrative and support partnerships
Admin & support — highest and lowest average ordinary income states (2 suppressions excluded from ranks).
Highest and lowest average ordinary income states for social assistance partnerships among published cells
Social assistance — extremes among 34 published states (17 suppressed).
Highest and lowest average ordinary income states for personal and laundry partnerships
Personal & laundry — highest and lowest average ordinary income states.

State × industry table

Filter by industry or search a state. State names link to the closest StartBusinessByState industry guide for that rollup. Sole-prop columns are from the companion Schedule C study for the same 3-digit code — labeled for comparison only. Download the full CSV: partnership-profit-by-state-2023.csv.


Average Form 1065 ordinary income and margin by state and 3-digit industry (TY2023); sole-prop columns for comparison
State Industry Forms 1065 Avg receipts Avg ordinary Avg rank PA margin Margin rank Sole-prop avg net Sole-prop margin
New Jersey Admin & support 3,580 $1,612,378 $436,405 1 27.1% 1 $11,863 21.5%
Indiana Admin & support 972 $2,083,474 $405,075 2 19.4% 3 $7,857 25.4%
Massachusetts Admin & support 970 $2,909,316 $324,015 3 11.1% 12 $13,713 31.1%
Nebraska Admin & support 385 $3,416,443 $275,470 4 8.1% 23 $8,993 23.1%
Tennessee Admin & support 1,925 $2,394,041 $270,732 5 11.3% 9 $9,478 17.8%
Connecticut Admin & support 1,115 $1,312,444 $261,563 6 19.9% 2 $15,010 25.2%
Ohio Admin & support 1,917 $2,420,710 $243,246 7 10.0% 15 $8,927 22.6%
New York Admin & support 4,074 $3,207,767 $202,608 8 6.3% 28 $11,142 32.5%
Delaware Admin & support 432 $2,219,881 $197,819 9 8.9% 19 $9,614 21.6%
Texas Admin & support 7,580 $1,804,142 $179,404 10 9.9% 16 $4,600 14.7%
Iowa Admin & support 488 $960,721 $152,601 11 15.9% 4 $8,351 24.7%
Illinois Admin & support 1,800 $3,444,438 $152,187 12 4.4% 36 $7,201 25.9%
Wisconsin Admin & support 925 $1,314,431 $149,997 13 11.4% 8 $6,212 12.2%
Louisiana Admin & support 1,250 $1,435,146 $120,388 14 8.4% 21 $2,256 8.5%
Kentucky Admin & support 702 $920,306 $112,470 15 12.2% 7 $7,751 24.4%
North Dakota Admin & support 157 $754,612 $109,514 16 14.5% 5 $8,387 24.3%
Colorado Admin & support 1,356 $1,261,816 $97,492 17 7.7% 25 $12,036 30.4%
Michigan Admin & support 1,745 $2,130,020 $92,945 18 4.4% 38 $6,947 19.8%
New Hampshire Admin & support 352 $2,080,042 $90,843 19 4.4% 37 $18,829 23.7%
California Admin & support 5,383 $1,863,622 $87,751 20 4.7% 34 $11,938 31.0%
Washington Admin & support 1,205 $1,067,871 $85,872 21 8.0% 24 $14,749 31.4%
Rhode Island Admin & support 146 $993,869 $81,976 22 8.2% 22 $11,296 30.7%
Oregon Admin & support 852 $802,561 $81,745 23 10.2% 14 $13,679 31.8%
Mississippi Admin & support 479 $594,866 $81,077 24 13.6% 6 $1,594 6.5%
Georgia Admin & support 2,373 $1,976,036 $78,026 25 3.9% 39 $1,158 4.6%
Arizona Admin & support 1,812 $2,451,664 $76,501 26 3.1% 42 $10,869 26.2%
Nevada Admin & support 1,110 $879,866 $75,896 27 8.6% 20 $5,037 15.9%
Maryland Admin & support 1,397 $1,200,565 $75,132 28 6.3% 29 $6,374 19.0%
Alaska Admin & support 180 $2,198,730 $72,167 29 3.3% 41 $10,239 24.5%
Hawaii Admin & support 276 $988,152 $71,331 30 7.2% 26 $12,365 27.4%
Florida Admin & support 11,010 $1,176,838 $69,900 31 5.9% 31 $5,621 21.9%
Missouri Admin & support 1,159 $1,203,123 $68,374 32 5.7% 32 $7,951 20.2%
Utah Admin & support 1,575 $1,751,659 $67,409 33 3.8% 40 $6,905 20.7%
Pennsylvania Admin & support 2,301 $2,304,610 $65,565 34 2.8% 44 $11,623 23.4%
Kansas Admin & support 714 $928,818 $65,165 35 7.0% 27 $9,446 27.7%
Alabama Admin & support 959 $1,020,875 $63,653 36 6.2% 30 $3,405 11.8%
Oklahoma Admin & support 917 $1,365,219 $60,944 37 4.5% 35 $7,313 20.9%
New Mexico Admin & support 251 $527,125 $59,578 38 11.3% 10 $9,997 30.1%
North Carolina Admin & support 2,040 $1,094,413 $56,346 39 5.1% 33 $7,385 23.2%
Idaho Admin & support 641 $518,141 $50,848 40 9.8% 18 $9,526 27.7%
Wyoming Admin & support 332 $491,820 $48,868 41 9.9% 17 $9,856 29.0%
West Virginia Admin & support 205 $430,233 $47,994 42 11.2% 11 $8,290 22.3%
Minnesota Admin & support 960 $1,575,691 $47,824 43 3.0% 43 $11,221 27.8%
Virginia Admin & support 1,554 $1,467,257 $32,772 44 2.2% 46 $7,106 22.5%
Montana Admin & support 302 $224,134 $23,958 45 10.7% 13 $10,700 31.8%
Maine Admin & support 222 $500,640 $12,264 46 2.4% 45 $10,832 27.2%
South Dakota Admin & support 204 $628,843 $7,139 47 1.1% 47 $11,414 27.1%
Arkansas Admin & support 479 $464,263 $-4,585 48 -1.0% 48 $5,898 22.9%
South Carolina Admin & support 1,055 $913,403 $-15,039 49 -1.6% 49 $5,677 17.4%
District of Columbia Personal & laundry 167 $665,031 $104,811 1 15.8% 4 $7,203 30.6%
Kentucky Personal & laundry 960 $556,308 $97,083 2 17.5% 3 $9,229 30.9%
Massachusetts Personal & laundry 1,496 $987,445 $81,649 3 8.3% 16 $12,480 32.4%
North Dakota Personal & laundry 206 $1,214,938 $71,138 4 5.9% 30 $10,597 29.8%
Illinois Personal & laundry 2,438 $889,318 $71,058 5 8.0% 17 $6,240 25.5%
Delaware Personal & laundry 315 $1,175,784 $67,905 6 5.8% 31 $6,793 20.5%
Minnesota Personal & laundry 1,130 $557,286 $64,047 7 11.5% 7 $10,964 30.2%
Tennessee Personal & laundry 2,105 $656,097 $56,804 8 8.7% 14 $7,889 21.1%
Louisiana Personal & laundry 1,274 $556,289 $56,556 9 10.2% 10 $3,481 14.8%
Montana Personal & laundry 433 $293,232 $51,722 10 17.6% 1 $10,440 33.1%
Maryland Personal & laundry 1,513 $461,227 $45,549 11 9.9% 11 $5,744 19.8%
Mississippi Personal & laundry 582 $533,354 $44,366 12 8.3% 15 $3,993 17.6%
Maine Personal & laundry 251 $502,694 $43,690 13 8.7% 13 $11,428 30.8%
Pennsylvania Personal & laundry 3,200 $553,899 $41,006 14 7.4% 22 $9,233 25.7%
Nevada Personal & laundry 1,124 $503,918 $39,023 15 7.7% 19 $8,352 26.7%
North Carolina Personal & laundry 2,377 $326,128 $38,084 16 11.7% 6 $8,346 28.3%
Nebraska Personal & laundry 537 $499,609 $34,939 17 7.0% 24 $10,879 33.0%
Washington Personal & laundry 1,213 $438,676 $33,356 18 7.6% 20 $12,655 32.3%
New Jersey Personal & laundry 5,691 $444,032 $33,075 19 7.4% 21 $8,929 21.9%
New York Personal & laundry 6,021 $610,664 $32,423 20 5.3% 34 $10,171 36.4%
Georgia Personal & laundry 2,844 $459,771 $32,174 21 7.0% 23 $2,326 10.4%
Connecticut Personal & laundry 1,465 $1,173,537 $30,049 22 2.6% 43 $12,984 28.7%
Wyoming Personal & laundry 308 $167,770 $29,513 23 17.6% 2 $9,725 32.3%
New Hampshire Personal & laundry 437 $449,802 $28,147 24 6.3% 27 $16,480 30.5%
Vermont Personal & laundry 127 $181,483 $27,654 25 15.2% 5 $12,268 33.8%
New Mexico Personal & laundry 330 $245,837 $26,893 26 10.9% 8 $9,491 28.6%
Ohio Personal & laundry 2,401 $426,135 $26,529 27 6.2% 28 $9,012 29.2%
Alaska Personal & laundry 129 $273,914 $26,169 28 9.6% 12 $13,211 32.4%
South Dakota Personal & laundry 268 $367,961 $23,396 29 6.4% 25 $11,410 32.6%
Utah Personal & laundry 2,202 $490,997 $23,068 30 4.7% 37 $6,832 25.4%
Hawaii Personal & laundry 349 $213,473 $22,477 31 10.5% 9 $11,201 30.0%
Indiana Personal & laundry 1,186 $822,863 $21,952 32 2.7% 42 $9,364 32.1%
Virginia Personal & laundry 1,802 $575,844 $21,502 33 3.7% 40 $7,473 25.7%
California Personal & laundry 9,273 $373,570 $20,410 34 5.5% 32 $9,265 27.1%
Iowa Personal & laundry 720 $309,292 $18,980 35 6.1% 29 $9,229 28.2%
Wisconsin Personal & laundry 1,013 $234,859 $18,665 36 7.9% 18 $11,304 32.0%
South Carolina Personal & laundry 1,270 $350,952 $17,078 37 4.9% 36 $6,872 23.4%
Missouri Personal & laundry 1,447 $319,536 $16,859 38 5.3% 35 $8,485 26.5%
Arizona Personal & laundry 2,196 $393,472 $15,943 39 4.1% 39 $9,565 26.6%
Colorado Personal & laundry 1,855 $416,299 $14,715 40 3.5% 41 $9,947 31.3%
Rhode Island Personal & laundry 270 $211,011 $11,388 41 5.4% 33 $11,723 34.8%
West Virginia Personal & laundry 323 $178,394 $11,340 42 6.4% 26 $9,615 28.8%
Oklahoma Personal & laundry 1,185 $267,051 $11,189 43 4.2% 38 $7,665 24.8%
Oregon Personal & laundry 952 $567,165 $11,136 44 2.0% 45 $12,180 34.6%
Alabama Personal & laundry 1,142 $431,264 $9,721 45 2.3% 44 $5,012 19.3%
Michigan Personal & laundry 2,249 $371,304 $6,381 46 1.7% 46 $7,604 29.0%
Texas Personal & laundry 8,587 $578,997 $6,340 47 1.1% 49 $4,871 16.1%
Florida Personal & laundry 10,714 $373,247 $6,330 48 1.7% 47 $4,595 18.5%
Kansas Personal & laundry 728 $372,196 $4,098 49 1.1% 48 $10,125 30.7%
Idaho Personal & laundry 819 $312,842 $-1,884 50 -0.6% 50 $7,763 25.9%
Arkansas Personal & laundry 730 $243,856 $-2,953 51 -1.2% 51 $6,864 24.9%
Indiana Social assistance 138 $1,848,277 $142,439 1 7.7% 19 $11,312 34.2%
Vermont Social assistance 18 $829,217 $136,014 2 16.4% 2 $19,785 40.9%
Tennessee Social assistance 221 $910,824 $122,772 3 13.5% 5 $10,513 28.1%
Kentucky Social assistance 106 $1,130,020 $116,497 4 10.3% 12 $10,880 33.1%
North Carolina Social assistance 281 $839,396 $106,896 5 12.7% 6 $8,765 32.0%
Oregon Social assistance 111 $673,535 $96,875 6 14.4% 3 $15,462 39.5%
Kansas Social assistance 90 $460,473 $79,360 7 17.2% 1 $12,840 37.7%
Louisiana Social assistance 155 $487,135 $69,086 8 14.2% 4 $5,549 23.7%
Utah Social assistance 315 $1,008,252 $68,993 9 6.8% 23 $8,251 28.5%
New Jersey Social assistance 726 $965,682 $68,580 10 7.1% 21 $13,412 37.6%
Texas Social assistance 1,105 $782,507 $68,049 11 8.7% 15 $5,732 21.9%
New York Social assistance 706 $1,136,658 $67,233 12 5.9% 27 $14,248 40.4%
New Hampshire Social assistance 49 $531,030 $64,314 13 12.1% 8 $13,646 20.4%
Alabama Social assistance 116 $692,816 $62,096 14 9.0% 13 $8,186 26.8%
Oklahoma Social assistance 120 $537,381 $59,220 15 11.0% 10 $11,563 29.9%
Ohio Social assistance 307 $677,597 $58,747 16 8.7% 16 $9,923 32.9%
Delaware Social assistance 39 $458,046 $55,611 17 12.1% 7 $11,561 27.8%
Hawaii Social assistance 20 $509,546 $55,427 18 10.9% 11 $11,461 31.8%
Pennsylvania Social assistance 404 $743,234 $47,562 19 6.4% 24 $12,440 34.1%
District of Columbia Social assistance 19 $1,020,658 $44,620 20 4.4% 30 $9,414 36.0%
Nebraska Social assistance 81 $482,982 $42,359 21 8.8% 14 $10,280 34.4%
California Social assistance 1,118 $591,370 $41,968 22 7.1% 22 $11,430 34.1%
Connecticut Social assistance 175 $514,348 $40,935 23 8.0% 18 $15,527 41.7%
South Carolina Social assistance 99 $639,634 $39,581 24 6.2% 26 $7,536 30.4%
West Virginia Social assistance 32 $618,732 $35,282 25 5.7% 28 $12,683 32.1%
Rhode Island Social assistance 23 $453,345 $34,404 26 7.6% 20 $13,308 48.8%
Maine Social assistance 59 $294,683 $32,548 27 11.0% 9 $13,280 30.2%
Florida Social assistance 756 $939,074 $25,605 28 2.7% 31 $6,601 29.8%
Wyoming Social assistance 31 $288,423 $24,684 29 8.6% 17 $11,701 26.3%
Montana Social assistance 51 $369,358 $21,017 30 5.7% 29 $13,781 31.3%
South Dakota Social assistance 35 $269,034 $17,021 31 6.3% 25 $13,801 37.2%
Idaho Social assistance 110 $749,373 $13,429 32 1.8% 33 $10,188 26.3%
Georgia Social assistance 271 $1,096,075 $8,638 33 0.8% 34 $4,029 20.7%
North Dakota Social assistance 39 $324,085 $6,085 34 1.9% 32 $13,945 34.3%
Nevada Specialty trade 680 $3,904,573 $324,845 1 8.3% 22 $11,323 9.5%
Alabama Specialty trade 1,216 $1,848,016 $271,395 2 14.7% 3 $14,982 11.2%
Texas Specialty trade 8,924 $3,557,330 $242,846 3 6.8% 32 $13,818 10.8%
Hawaii Specialty trade 205 $2,487,002 $241,474 4 9.7% 14 $25,108 18.5%
Rhode Island Specialty trade 165 $4,834,894 $224,336 5 4.6% 47 $21,034 22.5%
Arizona Specialty trade 2,272 $2,159,153 $211,336 6 9.8% 12 $16,397 13.8%
Maine Specialty trade 305 $742,621 $205,639 7 27.7% 1 $19,786 17.9%
Minnesota Specialty trade 1,602 $2,113,216 $202,723 8 9.6% 16 $23,272 19.2%
Massachusetts Specialty trade 1,209 $2,469,033 $202,339 9 8.2% 23 $25,096 22.3%
Tennessee Specialty trade 3,129 $1,978,504 $191,248 10 9.7% 15 $27,641 13.8%
Washington Specialty trade 1,877 $3,038,296 $185,495 11 6.1% 41 $25,461 19.1%
Maryland Specialty trade 1,590 $2,285,038 $185,139 12 8.1% 24 $14,929 15.8%
New Hampshire Specialty trade 683 $1,942,299 $173,474 13 8.9% 21 $35,192 18.2%
California Specialty trade 3,107 $2,526,954 $170,634 14 6.8% 33 $20,090 18.2%
Indiana Specialty trade 1,439 $1,646,084 $154,685 15 9.4% 19 $19,630 16.4%
Mississippi Specialty trade 646 $1,389,055 $153,518 16 11.1% 7 $11,319 9.7%
Georgia Specialty trade 2,953 $2,345,993 $151,455 17 6.5% 35 $7,638 7.9%
Ohio Specialty trade 2,960 $1,878,080 $148,122 18 7.9% 25 $22,675 17.5%
Colorado Specialty trade 2,037 $1,998,079 $143,905 19 7.2% 30 $21,825 19.5%
Illinois Specialty trade 1,808 $4,038,935 $143,810 20 3.6% 49 $15,240 18.9%
Connecticut Specialty trade 1,930 $1,350,021 $143,675 21 10.6% 8 $29,516 17.2%
New York Specialty trade 4,019 $2,532,539 $131,699 22 5.2% 46 $16,400 17.7%
Vermont Specialty trade 166 $593,037 $125,967 23 21.2% 2 $21,270 19.1%
Louisiana Specialty trade 1,449 $1,953,100 $124,163 24 6.4% 38 $6,924 7.3%
Pennsylvania Specialty trade 3,219 $2,157,746 $122,553 25 5.7% 44 $23,449 18.2%
New Mexico Specialty trade 416 $1,877,788 $119,258 26 6.4% 39 $15,641 12.8%
North Dakota Specialty trade 322 $1,104,926 $117,212 27 10.6% 9 $24,848 16.1%
New Jersey Specialty trade 4,463 $1,630,145 $115,654 28 7.1% 31 $25,836 15.7%
Utah Specialty trade 2,476 $1,876,680 $114,440 29 6.1% 42 $13,257 12.4%
Michigan Specialty trade 1,729 $1,537,974 $113,463 30 7.4% 28 $18,773 18.3%
Iowa Specialty trade 926 $1,241,902 $112,523 31 9.1% 20 $19,053 14.3%
North Carolina Specialty trade 2,814 $1,704,694 $110,122 32 6.5% 34 $17,671 16.0%
Kansas Specialty trade 980 $1,706,773 $108,198 33 6.3% 40 $20,829 15.3%
South Dakota Specialty trade 416 $956,720 $94,218 34 9.8% 11 $23,480 17.3%
Delaware Specialty trade 375 $972,565 $91,746 35 9.4% 18 $24,028 16.1%
Wisconsin Specialty trade 1,394 $872,866 $85,306 36 9.8% 13 $24,120 17.6%
Florida Specialty trade 8,876 $1,427,528 $84,533 37 5.9% 43 $10,288 16.0%
Oklahoma Specialty trade 1,426 $1,278,507 $81,452 38 6.4% 37 $14,917 12.5%
Alaska Specialty trade 206 $608,087 $80,391 39 13.2% 4 $26,298 17.4%
Idaho Specialty trade 1,565 $679,934 $78,418 40 11.5% 6 $18,187 15.4%
Nebraska Specialty trade 698 $1,187,156 $76,446 41 6.4% 36 $18,291 15.7%
South Carolina Specialty trade 1,344 $999,473 $74,828 42 7.5% 27 $15,308 12.4%
West Virginia Specialty trade 383 $947,438 $74,520 43 7.9% 26 $15,208 11.8%
Oregon Specialty trade 1,464 $699,999 $74,160 44 10.6% 10 $24,297 18.1%
Missouri Specialty trade 1,772 $1,303,301 $72,921 45 5.6% 45 $17,849 13.7%
Kentucky Specialty trade 1,181 $966,743 $69,884 46 7.2% 29 $17,442 15.1%
Virginia Specialty trade 1,948 $1,823,541 $58,739 47 3.2% 50 $14,637 15.7%
Montana Specialty trade 678 $469,822 $55,742 48 11.9% 5 $22,399 19.9%
Arkansas Specialty trade 814 $1,137,171 $51,736 49 4.5% 48 $15,669 14.0%
Wyoming Specialty trade 353 $521,370 $49,371 50 9.5% 17 $18,827 15.7%
District of Columbia Specialty trade 45 $1,639,566 $-152,300 51 -9.3% 51 $9,308 9.8%

FAQ
What is ordinary income on Form 1065?

In IRS SOI partnership statistics, ordinary business income is the Form 1065 ordinary-income concept published in Table 2 — not the same as Schedule C net profit. This page reports TY2023 state × industry averages of that figure. It is not a line-by-line Form 1065 tutorial and not tax advice.

Which of these industries has the highest U.S. average partnership ordinary income?

Among the four service rollups on this page, specialty trade contractors (NAICS 238) lead U.S. average ordinary income at $140,750 (7.0% PA margin), then admin & support $132,551 (7.8%), social assistance $66,992 (7.6%), and personal & laundry $26,164 (5.4%). Partnership margins (~5–8%) sit far below same-code Schedule C margins.

Do high-receipt states also post high partnership ordinary-income margins?

Often no. For specialty trades, 0 of 10 top-receipt states also rank in the top 10 for ordinary-income margin (Spearman receipts↔margin ≈ −0.47). Admin & support shows only 1/10 overlap with top margins.

Is this advice on how partners split or report profits?

No. This is an IRS SOI averages map by state and industry — not tax advice, not a fair-percentage guide, and not a Form 1065 filing walkthrough.

Planning context — guides and insurance

Use these figures alongside startup guides and coverage decisions — not instead of them:

Methods, codes, and limits

Data source and calculations

Primary file: IRS SOI 23pa02st.xlsx — Table 2, Partnerships by industry and state, Tax Year 2023 (confirmed latest download September 16, 2026). Average ordinary income = ordinary business income (loss) (Form 1065 line 22) ÷ number of Forms 1065. Margin = ordinary income ÷ business receipts (line 1c). Suppressions (d) are never treated as zero.

NAICS mapping (coarse by design)

561 Administrative and Support Services — cleaning and landscaping audiences share this code with other admin/support activities.
238 Specialty Trade Contractors — HVAC/plumbing audiences share this code with other specialty trades.
624 Social Assistance — daycare audiences share this code with other social assistance; 17 states suppressed in TY2023.
812 Personal and Laundry Services — salon/personal-care audiences share this code with laundry and related services.

Limitations
  • Partnerships filing Form 1065 — includes many LLCs taxed as partnerships; excludes LLCs taxed as C/S corporations.
  • Ordinary business income ≠ Schedule C net profit and ≠ partner take-home after taxes or living costs.
  • Filing ZIP may differ from where work is performed.
  • Arithmetic means of Form 1065 ordinary income, not medians or per-partner income.
  • Industry mix inside each 3-digit code varies by state.
Public references & download

IRS SOI unincorporated business state and county data · CSV: partnership-profit-by-state-2023.csv · Companion: sole-prop profit by state. Archived source checksums retained with this study.