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## DI Trust Fund, a Social Security fund

Office of the Chief Actuary Statistical TablesFinancial data

Data on DIincome and        cost follow the summary table below

**Disability Insurance Trust Fund, 1957-2023**[In millions] Asset Reserves aCalendaryearTotalincomeTotalcost aNet increaseduring yearAsset Reserves atend of year1957$709$59$649$64919589912617291,37919599314854471,82519601,0636004642,28919611,1049561482,43719621,1141,183-692,36819631,1651,297-1332,23519641,2181,407-1882,04719651,2471,687-4401,60619662,0791,9471331,73919672,3792,0892902,02919683,4542,4589963,02519693,7922,7161,0754,10019704,7743,2591,5145,61419715,0314,0001,0316,64519725,5724,7598137,45719736,4435,9734707,92719747,3787,1961828,10919758,0358,790-7547,35419768,75710,366-1,6095,74519779,57011,945-2,3753,370197813,81012,9548564,226197915,59014,1861,4045,630198013,87115,872-2,0013,629198117,07817,658-5803,049198222,71517,992-3582,691198320,68218,1772,5055,195198417,30918,546-1,2373,959198519,30119,4782,3636,321198619,43920,5221,4597,780198720,30321,425-1,1226,658198822,69922,4942066,864198924,79523,7531,0417,905199028,79125,6163,17411,079199130,39028,5711,81912,898199231,43032,004-57412,324199332,30135,662-3,3618,963199452,84138,87913,96222,925199556,69642,05514,64137,566199660,71045,35115,35952,924199760,49947,03413,46566,389199864,35749,93114,42580,815199969,54153,03516,50797,321200077,92056,78221,138118,459200183,90361,36922,534140,993200287,37967,90519,475160,468200388,07473,10814,966175,434200491,38080,59710,783186,217200597,42388,0189,405195,6232006102,64194,4568,185203,8082007109,85498,77811,076214,8842008109,840108,951889215,7732009109,283121,506-12,223203,5502010104,017127,660-23,643179,9072011106,276132,332-26,056153,8502012109,115140,299-31,184122,6662013111,228143,450-32,22190,4452014114,858145,060-30,20160,2442015118,595146,581-27,98532,2592016159,996145,91714,07946,3382017170,951145,80925,14271,4802018172,347146,77025,57797,0572019143,901147,876-3,97493,0832020149,748146,2603,48896,5702021145,470142,6462,82499,3942022165,063146,47018,594117,9882023183,801154,81528,985146,973a Beginning in 1979, benefit payments scheduled to be paid on January 3 of a given year were paid on December 31 of the preceding year as required by the statutory provision included in the 1977 Social Security Amendments for early delivery of benefit payments when the normal payment delivery date is a Saturday, Sunday, or legal public holiday. Such advance payments have occurred about every 7 years, first for benefits scheduled for January 3, 1982. For comparability with other historical years, all trust fund operations and asset reserves reflect the 12 months of benefits scheduled for payment in each year.   Note: The annual net increase in the fund is    the change in the asset reserves from the end of one year to the end of the next.  In 1982, the Old-Age and Survivors Insurance Trust Fund borrowed money from  the fund, and repaid the borrowed amounts in 1985 and 1986.  For each of these  years, the net increase in the fund is equal to total income less total  cost, less amounts borrowed or plus amounts repaid. Asset reserves, except for  relatively small cash amounts, are invested in Federal Government securities.  
**Disability Insurance Trust Fund Income**[In millions]CalendaryearTotalincomeNetpayroll taxcontributionsIncome fromtaxationof benefitsGeneral Fund Transfers aNet interest b1957$709$702……$71958991966……251959931891……4019601,0631,010……5319611,1041,038……6619621,1141,046……6819631,1651,099……6619641,2181,154……6419651,2471,188……5919662,0792,006…$165819672,3792,286…167819683,4543,316…3210619693,7923,599…1617719704,7744,481…1627719715,0314,620…5036119725,5725,107…5141419736,4435,932…5245819747,3786,826…5250019758,0357,444…9050219768,7578,233…10342219779,5709,138…128304197813,81013,413…142256197915,59015,114…118358198013,87113,255…130485198117,07816,738…168172198222,71521,995…174546198320,68217,991…1,1211,569198417,30915,503$1904411,174198519,30117,0142221,195870198619,43918,247238152803198720,30319,538-36153648198822,69921,83761202600198924,79523,79795196707199028,79128,403144-639883199130,39029,12819091,063199231,43030,148232-121,062199332,30131,1822814835199452,84151,37231111,157199556,69654,404341-2072,158199660,71057,325373(c)3,012199760,49956,037470(c)3,992199864,35758,966558(c)4,832199969,54163,203661(c)5,677200077,92071,093721-8366,942200183,90374,933811(c)8,158200287,37977,272930(c)9,178200388,07477,442944(c)9,689200491,380  80,2811,111(c)9,988200597,42386,0771,073(c)10,2732006102,64190,8081,230(c)10,6032007109,85495,2431,393813,2102008109,84097,5661,313(c)10,9612009109,28396,8651,955(c)10,4632010104,01792,5111,8523639,2922011106,27681,8811,58114,9277,8872012109,11585,61558316,5466,3712013111,228105,4023917294,7062014114,858109,7371,680713,3712015118,595115,3891,071472,0882016159,996157,3911,194151,3962017170,951167,0871,97331,8882018172,347169,18653032,6282019143,901139,3771,58322,9402020149,748145,2931,704(c)2,7502021145,470142,367459(c)2,6442022165,063160,6781,553(c)2,8332023183,801179,023950(c)3,828aIncludes reimbursements from the General Fund of the Treasury to the DI Trust Fund for: (1)      the cost of noncontributory wage credits for military service before 1957; (2) the cost in 1971-82 of deemed wage credits for      military service performed after 1956; (3) the cost of benefits to certain uninsured persons who attained age 72 before      1968; (4) the cost of payroll tax credits provided to employees in 1984 and self-employed persons in       1984-89 by Public Law 98-21; (5) the cost in 2009-13 of excluding certain self-employment 	  earnings from SECA taxes under Public Law 110-246; and (6) payroll tax revenue forgone under the provisions of 	  Public Laws 111-147, 111-312, 112-78, and 112-96.b Includes relatively small amounts of gifts to the fund.c Less than $500,000.
**Disability Insurance Trust Fund Cost**[In millions]CalendaryearTotalcostaBenefitpayments abAdministrativeexpensesTransfers to Railroad Retirement program1957$59$57$3…195826124912…195948545750-$22196060056836-5196195688764519621,1831,105661119631,2971,210682019641,4071,309791919651,6871,573902419661,9471,7841372519672,0891,9501093119682,4582,3111272019692,7162,5571382119703,2593,0851641019714,0003,7832051319724,7594,5022332419735,9735,7641902019747,1966,9572172219758,7908,50525629197610,36610,05528526197711,94511,547399-1197812,95412,59932530197914,18613,78637130198015,87215,515368-12198117,65817,19243629198217,99217,37659026198318,17717,52462528198418,54617,89862622198519,47818,82760843198620,52219,85360068198721,42520,51984957198822,49421,69573761198923,75322,91175488199025,61624,82970780199128,57127,69579482199232,00431,11283458199335,66234,61396683199438,87937,7441,029106199542,05540,9231,06468199645,35144,1891,1602199747,03445,6951,28059199849,93148,2071,567157199953,03551,3811,519135200056,78254,9831,639159200161,36959,6181,74110200267,90565,7022,049154200373,10870,9332,008167200480,59778,2292,152215200588,01885,3652,315338200694,45691,7412,326388200798,77895,8652,4684452008108,951106,0072,5264182009121,506118,3152,7434482010127,660124,2162,9824622011132,332128,9482,9204652012140,299136,8972,8905122013143,450140,1302,7695512014145,060141,6832,9334442015146,581143,3702,7924192016145,917142,7812,7603762017145,809142,8062,7962072018146,770143,7412,8561742019147,876145,1212,689662020146,260143,5612,5551442021142,646140,0582,4811072022146,470143,5672,7471562023154,815151,9172,83960a Beginning in 1979, benefit payments scheduled to be paid on January 3 of a given year were paid on December 31 of the preceding year as required by the statutory provision included in the 1977 Social Security Amendments for early delivery of benefit payments when the normal payment delivery date is a Saturday, Sunday, or legal public holiday. Such advance payments have occurred about every 7 years, first for benefits scheduled for January 3, 1982. For comparability with other historical years, all trust fund operations and asset reserves reflect the 12 months of benefits scheduled for payment in each year.b Beginning in 1966, includes payments for vocational rehabilitation services furnished to disabled persons receiving benefits because of their disabilities. Beginning in 1983, amounts are reduced by amount of reimbursement for unnegotiated benefit checks.
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