Version: 2.0.0

Update

Use this endpoint to update the information on existing TX UI C3 forms that are already created for a specific employer (payer).

You cannot update a return once it has been transmitted.

PUT StateFilings/TXUI/Update

Run in Postman

Request Body

Field	Type	Description
SubmissionId	Guid	Unique identifier created by TaxBandits for each submission. Not required when you are creating a return.
StateUIRecords	Object[]	Object to identify the records.
SequenceId	String	A unique identifier for this record. Size Range: ..50
ReturnHeader	Object	Contains business information.
TaxYear	String	The tax year for which the Form C3 is to be filed. Allowed values 2025,2026
Qtr	String	The quarter for which the Form C3 is to be filed. Allowed values "Q1", "Q2", "Q3", "Q4"
Business	object	Object to identify the Business Details.
BusinessId	Guid	Optional Use the unique Business ID (Generated by TaxBandits) that you received in the response of the Business CREATE Endpoint. If you do not have a Business ID, ignore the field. By giving the Business ID, you do not have to provide all the business information again.
PayerRef	string	Optional Your unique identifier for the payer. Can replace BusinessId in future requests. Size Range: 50
IsDefaultBusiness	Boolean	When set to TRUE, this business will be set as the default across requests that do not specify a business.
TINDetails	object	TIN information for the business.
Format	string	Specifies how the TIN is passed. Allowed values "PLAIN_TIN" — Pass TIN directly. "TOKENIZED_TIN" — Pass tokenized TIN.
TINType	string	Specify the TIN type of the business. Allowed values "EIN", "SSN", "QI-EIN", "ITIN", "WP-EIN", "WT-EIN", "NQI-EIN", "IRSN"
TIN	string	The TIN value according to the Format selected.
IndividualNm	object	Required when TINType is SSN. Provide individual name fields instead of BusinessNm.
FirstNm	string	The first name of the individual. Size Range: 20
MiddleNm	string	Optional Middle name of the individual. Size Range: 20
LastNm	string	The last name of the individual. Size Range: 20
Suffix	string	Optional Suffix of the individual's name. Allowed values "Jr", "Sr", "I", "II", "III", "IV", "V", "VI", "VII"
BusinessNm	string	Legal name of the business. Required when TINType is EIN. Size Range: 75
NameCtrl	string	Name control of the business as registered with the IRS. Size Range: 3..4
DBADetails	object[]	Optional DBA (Doing Business As) information.
DBANm	string	Name of the DBA. Size Range: 75
DBARef	string	Unique identifier for the DBA. Size Range: 1-50
DBAId	Guid	TaxBandits-generated DBA identifier.
Address	object[]	Address information of the DBA.
Address1	string	Street address or PO Box. Size Range: 46
Address2	string	Optional Suite or apartment number. Size Range: 46
City	string	DBA's city. Size Range: 50
ProvinceOrState	string	DBA's province or state name. When the country code is US: Allowed values "AL", "AK", "AZ", "AR", "CA", "CO", "CT", "DE", "DC", "FL", "GA", "HI", "ID", "IL", "IN", "IA", "KS", "KY", "LA", "ME", "MD", "MA", "MI", "MN", "MS", "MO", "MT", "NE", "NV", "NH", "NJ", "NM", "NY", "NC", "ND", "OH", "OK", "OR", "PA", "RI", "SC", "SD", "TN", "TX", "UT", "VT", "VA", "WA", "WV", "WI", "WY", "AS", "FM", "GU", "MH", "MP", "PW", "PR", "VI", "AA", "AE", "AP" When the country code is CA: Allowed values "AB", "BC", "MB", "NB", "NL", "NT", "NS", "NU", "ON", "PE", "QC", "SK", "YT" Note: The size range is set to 50 for all countries except the United States and Canada.
Zipcd	string	DBA's ZIP code. Size Range: 5-16
Country	string	DBA's 2-character country code. Allowed values "US","AF", "AX", "AL", "AG", "AQ", "AN", "AO", "AV", "AY", "AC", "AR", "AM", "AA", "AT", "AS", "AU", "AJ", "BF", "BA", "FQ", "BG", "BB", "BO", "BE", "BH", "BN", "BD", "BT", "BL", "BK", "BC", "BV", "BR", "IO", "VI", "BX", "BU", "UV", "BM", "BY", "CB", "CM", "CA", "CV", "CJ", "CT", "CD", "CI", "CH", "KT", "IP", "CK", "CO", "CN", "CF", "CG", "CW", "CR", "CS", "IV", "HR", "CU", "UC", "CY", "EZ", "DA", "DX", "DJ", "DO", "DR", "TT", "EC", "EG", "ES", "EK", "ER", "EN", "ET", "FK", "FO", "FM", "FJ", "FI", "FR", "FP", "FS", "GB", "GA", "GG", "GM", "GH", "GI", "GR", "GL", "GJ", "GQ", "GT", "GK", "GV", "PU", "GY", "HA", "HM", "VT", "HO", "HK", "HQ", "HU", "IC", "IN", "ID", "IR", "IZ", "EI", "IS", "IT", "JM", "JN", "JA", "DQ", "JE", "JQ", "JO", "KZ", "KE", "KQ", "KR", "KN", "KS", "KV", "KU", "KG", "LA", "LG", "LE", "LT", "LI", "LY", "LS", "LH", "LU", "MC", "MK", "MA", "MI", "MY", "MV", "ML", "MT", "IM", "RM", "MR", "MP", "MX", "MQ", "MD", "MN", "MG", "MJ", "MH", "MO", "MZ", "WA", "NR", "BQ", "NP", "NL", "NC", "NZ", "NU", "NG", "NI", "NE", "NF", "CQ", "NO", "MU", "OC", "PK", "PS", "LQ", "PM", "PP", "PF", "PA", "PE", "RP", "PC", "PL", "PO", "RQ", "QA", "RO", "RS", "RW", "TB", "RN", "WS", "SM", "TP", "SA", "SG", "RI", "SE", "SL", "SN", "NN", "LO", "SI", "BP", "SO", "SF", "SX", "OD", "SP", "PG", "CE", "SH", "SC", "ST", "SB", "VC", "SU", "NS", "SV", "WZ", "SW", "SZ", "SY", "TW", "TI", "TZ", "TH", "TO", "TL", "TN", "TD", "TS", "TU", "TX", "TK", "TV", "UG", "UP", "AE", "UK", "UY", "UZ", "NH", "VE", "VM", "VQ", "WQ", "WF", "WI", "YM", "ZA", "ZI"
Email	string	Optional Email address of the Business. Size Range: ..100
Address	object	Primary address of the business.
Address1	string	Street address or PO Box of the business. Size Range: 46
Address2	string	Optional Suite or apartment number of the business. Size Range: 46
City	string	City of the business. Size Range: 50
ProvinceOrState	string	Province or state name of the business. When the country code is US: Allowed values "AL", "AK", "AZ", "AR", "CA", "CO", "CT", "DE", "DC", "FL", "GA", "HI", "ID", "IL", "IN", "IA", "KS", "KY", "LA", "ME", "MD", "MA", "MI", "MN", "MS", "MO", "MT", "NE", "NV", "NH", "NJ", "NM", "NY", "NC", "ND", "OH", "OK", "OR", "PA", "RI", "SC", "SD", "TN", "TX", "UT", "VT", "VA", "WA", "WV", "WI", "WY", "AS", "FM", "GU", "MH", "MP", "PW", "PR", "VI", "AA", "AE", "AP" When the country code is CA: Allowed values "AB", "BC", "MB", "NB", "NL", "NT", "NS", "NU", "ON", "PE", "QC", "SK", "YT" Note: The size range is set to 50 for all countries except the United States and Canada.
ZipCd	string	ZIP code of the business. Size Range: 5-16
Country	string	2-character country code of the business. Allowed values "US","AF", "AX", "AL", "AG", "AQ", "AN", "AO", "AV", "AY", "AC", "AR", "AM", "AA", "AT", "AS", "AU", "AJ", "BF", "BA", "FQ", "BG", "BB", "BO", "BE", "BH", "BN", "BD", "BT", "BL", "BK", "BC", "BV", "BR", "IO", "VI", "BX", "BU", "UV", "BM", "BY", "CB", "CM", "CA", "CV", "CJ", "CT", "CD", "CI", "CH", "KT", "IP", "CK", "CO", "CN", "CF", "CG", "CW", "CR", "CS", "IV", "HR", "CU", "UC", "CY", "EZ", "DA", "DX", "DJ", "DO", "DR", "TT", "EC", "EG", "ES", "EK", "ER", "EN", "ET", "FK", "FO", "FM", "FJ", "FI", "FR", "FP", "FS", "GB", "GA", "GG", "GM", "GH", "GI", "GR", "GL", "GJ", "GQ", "GT", "GK", "GV", "PU", "GY", "HA", "HM", "VT", "HO", "HK", "HQ", "HU", "IC", "IN", "ID", "IR", "IZ", "EI", "IS", "IT", "JM", "JN", "JA", "DQ", "JE", "JQ", "JO", "KZ", "KE", "KQ", "KR", "KN", "KS", "KV", "KU", "KG", "LA", "LG", "LE", "LT", "LI", "LY", "LS", "LH", "LU", "MC", "MK", "MA", "MI", "MY", "MV", "ML", "MT", "IM", "RM", "MR", "MP", "MX", "MQ", "MD", "MN", "MG", "MJ", "MH", "MO", "MZ", "WA", "NR", "BQ", "NP", "NL", "NC", "NZ", "NU", "NG", "NI", "NE", "NF", "CQ", "NO", "MU", "OC", "PK", "PS", "LQ", "PM", "PP", "PF", "PA", "PE", "RP", "PC", "PL", "PO", "RQ", "QA", "RO", "RS", "RW", "TB", "RN", "WS", "SM", "TP", "SA", "SG", "RI", "SE", "SL", "SN", "NN", "LO", "SI", "BP", "SO", "SF", "SX", "OD", "SP", "PG", "CE", "SH", "SC", "ST", "SB", "VC", "SU", "NS", "SV", "WZ", "SW", "SZ", "SY", "TW", "TI", "TZ", "TH", "TO", "TL", "TN", "TD", "TS", "TU", "TX", "TK", "TV", "UG", "UP", "AE", "UK", "UY", "UZ", "NH", "VE", "VM", "VQ", "WQ", "WF", "WI", "YM", "ZA", "ZI"
ContactDetails	object[]	Details of the person the IRS can contact regarding the given business.
FirstNm	string	First name of the contact person. Size Range: 20
MiddleNm	string	Optional Middle name of the contact person. Size Range: 20
LastNm	string	Last name of the contact person. Size Range: 20
Suffix	string	Optional The suffix of the contact person. Allowed values "Jr", "Sr", "I", "II", "III", "IV", "V", "VI", "VII"
Phone	string	Optional Phone number of the contact person. Size Range: 10 digits
PhoneExtn	string	Optional Phone extension number. Size Range: 5
Email	string	Optional Email address of the contact person. Size Range: ..100
Fax	string	Optional Fax number of the contact person. Size Range: 10 digits
ReturnData	Object	Contains the return information.
BusinessType	String	Legal structure of the business. Allowed values "ESTE", "PART", "CORP", "EORG", "SPRO"
SigningAuthority	Object	Details of the person authorized to sign the return. Mandatory for 94x forms.
FirstNm	String	First name of the signatory. Size Range: 20
MiddleNm	String	Optional Middle name of the signatory. Size Range: 20
LastNm	String	Last name of the signatory. Size Range: 20
Suffix	String	Optional The suffix of the signatory. Allowed values "Jr", "Sr", "I", "II", "III", "IV", "V", "VI", "VII"
Phone	String	Optional Phone number of the signatory Size Range: 10
PhoneExtn	String	Optional Phone extension number of the signatory. Size Range: 5
BusinessMemberType	String	Optional Title or role of the signatory. Allowed values "CORPORATESECRETARY", "SECRETARYTREASURER", "PARTNER", "GENERALPARTNER", "LIMITEDPARTNER", "LLCMEMBER", "MANAGINGMEMBER", "MANAGER", "TAXMATTERPARTNER", "PRESIDENT", "VICEPRESIDENT", "CORPORATETREASURER", "TREASURER", "ASSISTANTTREASURER", "CHIEFACCOUNTINGOFFICER", "CHIEFEXECUTIVEOFFICER", "CHIEFFINANCIALOFFICER", "TAXOFFICER", "CHIEFOPERATINGOFFICER", "CORPORATEOFFICER", "EXECUTIVEDIRECTOR", "DIRECTOR", "CHAIRMAN", "EXECUTIVEADMINISTRATOR", "RECEIVER", "PASTOR", "ASSISTANTTORELIGIOUSLEADER", "REVEREND", "PRIEST", "MINISTER", "RABBI", "LEADEROFRELIGIOUSORGANIZATION", "SECRETARY", "DIRECTOROFTAXATION", "DIRECTOROFPERSONNEL", "ADMINISTRATOR", "EXECUTOR", "TRUSTEE", "FIDUCIARY", "OWNER", "SOLEPROPRIETOR", "MEMBER", "SOLEMEMBER", "REPORTINGAGENT"
ReturnData	Object	Contains the return information.
FormC3	Object	Identifies the Form C3 data.
UIIdNum	string	Employer ID number. Sample format: XXXXXXXXX Size Range:9
CountyCd	string	Employer's county code Allowed values "001","003","005","007","009","011","013","015","017","019","021","023","025","027","029","031","033","035","037","039","041","043","045","047","049","051","053","055","057","059","061","063","065","067","069","071","073","075","077","079","081","083","085","087","089","091","093","095","097","099","101","103","105","107","109","111","113","115","117","119","121","123","125","127","129","131","133","135","137","139","141","143","145","147","149","151","153","155","157","159","161","163","165","167","169","171","173","175","177","179","181","183","185","187","189","191","193","195","197","199","201","203","205","207","209","211","213","215","217","219","221","223","225","227","229","231","233","235","237","239","241","243","245","247","249","251","253","255","257","259","261","263","265","267","269","271","273","275","277","279","281","283","285","287","289","291","293","295","297","299","301","303","305","307","309","311","313","315","317","319","321","323","325","327","329","331","333","335","337","339","341","343","345","347","349","351","353","355","357","359","361","363","365","367","369","371","373","375","377","379","381","383","385","387","389","391","393","395","397","399","401","403","405","407","409","411","413","415","417","419","421","423","425","427","429","431","433","435","437","439","441","443","445","447","449","451","453","455","457","459","461","463","465","467","469","471","473","475","477","479","481","483","485","487","489","491","493","495","497","499","501","503","505","507"
UITaxRate	Number	Tax rate for the quarter. Size Range: 1-100
NAICSCd	Number	North American Industry Classification System code that best classifies the employer. Sample format: XXXXXX
IsNoWageRptd	Boolean	When true, indicates that no wages were reported for the quarter.
NumOfEmp	Object	Identifies the total number of employees for the quarter.
TotMonth1Emp	string	Total number of employees in month 1 of the quarter. Size Range: 0-9999999
TotMonth2Emp	string	Total number of employees in month 2 of the quarter. Size Range: 0-9999999
TotMonth3Emp	string	Total number of employees in month 3 of the quarter. Size Range: 0-9999999
MaxEmpCounty	string	County code of the county in which you had the greatest number of employees. Allowed values "001","003","005","007","009","011","013","015","017","019","021","023","025","027","029","031","033","035","037","039","041","043","045","047","049","051","053","055","057","059","061","063","065","067","069","071","073","075","077","079","081","083","085","087","089","091","093","095","097","099","101","103","105","107","109","111","113","115","117","119","121","123","125","127","129","131","133","135","137","139","141","143","145","147","149","151","153","155","157","159","161","163","165","167","169","171","173","175","177","179","181","183","185","187","189","191","193","195","197","199","201","203","205","207","209","211","213","215","217","219","221","223","225","227","229","231","233","235","237","239","241","243","245","247","249","251","253","255","257","259","261","263","265","267","269","271","273","275","277","279","281","283","285","287","289","291","293","295","297","299","301","303","305","307","309","311","313","315","317","319","321","323","325","327","329","331","333","335","337","339","341","343","345","347","349","351","353","355","357","359","361","363","365","367","369","371","373","375","377","379","381","383","385","387","389","391","393","395","397","399","401","403","405","407","409","411","413","415","417","419","421","423","425","427","429","431","433","435","437","439","441","443","445","447","449","451","453","455","457","459","461","463","465","467","469","471","473","475","477","479","481","483","485","487","489","491","493","495","497","499","501","503","505","507"
NumOfOutOfCounty	Number	Number of employees in more than one county in texas Size Range: 0-9999999
IsOutOfStateWages	Boolean	When true, it identifies that wages exist from another state.
TotGrossWages	Number	Total gross wages reported for the quarter. Size Range: ..9999999.99
TotTaxableWages	Number	Taxable wages for the quarter. Size Range: ..9999999.99
~~L2TotExcessWages~~	~~Number~~	~~Excess wages for the quarter. Size Range: ..9999999.99~~
UITaxDue	Number	Tax due for the quarter. Size Range: 0-9999999.99
Interest	Number	Optional Interest for the quarter. Size Range: 0-9999999.99
Penalty	Number	Optional Penalty for the quarter. Size Range: 0-9999999.99
PrevQtrAdj	Number	Balance due from prior periods Size Range: 0-9999999.99
TotUIDue	Number	Total tax due for the quarter Size Range: 0-9999999.99
EmpDetails	Object	Object to identify the employee details.
EmployeeSequenceId	string	A unique number to identify this record. Size Range: ..10
EmpId	Guid	Optional A unique ID generated by TaxBandits after the return is created and returned in the response.
EmployeeRef	string	A unique identifier of the employee.
SSN	string	Employee's Social Security Number (SSN). Size Range: 9-11
FirstNm	string	Employee's first name. Size Range: 15
MiddleNm	string	Optional Employee's middle name. Size Range: 15
LastNm	string	Employee's last name. Size Range: 20
Suffix	string	Optional Employee's suffix. Allowed values "Jr", "Sr", "I", "II", "III", "IV", "V", "VI", "VII"
GrossWages	Number	Gross wages of the employee. Size Range: 0-9999999.99
TaxableWages	Number	Taxable wages of the employee. Size Range: 0-9999999.99
ExcessWages	Number	Excess wages of the employee. Size Range: 0-9999999.99
OutOfStateTaxableWages	Number	Out of state taxable wages of the employee. Size Range: 0-9999999.99

Response Body

Field	Type	Description
SubmissionId	Guid	Unique identifier for a submission.
SuccessRecords	object[]	Provides detailed information about the success status of Form ES903A records.
SequenceId	string	A unique reference ID for the submission that can be used to identify a particular record. The Sequence ID will be returned in the response for your reference.
BusinessId	Guid	Unique identifier for the business (payer) generated by TaxBandits.
PayerRef	string	Unique identifier for the business (payer) provided by you.
RecordId	Guid	A unique identifier generated by TaxBandits when a Form ES903A return is created.
FormType	string	Type of form.
Status	string	Returns the record status.
StatusTs	string	Returns the date and time when the return was created.
Info	string	Provides additional information about the return.
Errors	object[]	Displays error information related to the state returns of Form ES903A.
Id	string	Returns the validation error ID.
Name	string	Name of the validation error.
ErrorRecords	object[]	Provides detailed information about the error status of Form ES903A records.
SequenceId	string	A unique reference ID for the submission that can be used to identify a particular record. The Sequence ID will be returned in the response for your reference.
RecordId	Guid	Unique identifier for the record.
Errors	object[]	Displays detailed error information.
Id	string	Returns the validation error ID.
Name	string	Name of the validation error.
Message	string	Description of the validation error.

Request JSON

Sample 1

{
  "SubmissionId": "01a0e7e9-75b0-72ac-bd71-fa19b230fb11",
  "StateUIRecords": [
      {
          "SequenceId": "001",
          "RecordId": "01a0e7e9-7c7f-7420-9030-d0071e85df2b",
          "ReturnHeader": {
              "Qtr": "Q3",
              "TaxYear": "2026",
              "Business": {
                  "IsDefaultBusiness": true,
                  "TINDetails": {
                      "Format": "PLAIN_TIN",
                      "TINType": "EIN",
                      "TIN": "458982092"
                  },
                  "IndividualNm": {
                      "FirstNm": "James",
                      "MiddleNm": "A",
                      "LastNm": "Anderson",
                      "Suffix": "Jr"
                  },
                  "BusinessNm": "Snowdaze LLC",
                  "NameCtrl": "FIRE",
                  "DBADetails": {
                      "DBANm": "Iceberg Icecreams",
                      "DBARef": "DBA1001",
                      "DBAId": null,
                      "Address": {
                          "Address1": "123 Main St",
                          "Address2": "Suite 1001",
                          "City": "Rock Hill",
                          "ProvinceOrState": "SC",
                          "ZipCd": "29730",
                          "Country": "US"
                      }
                  },
                  "Address": {
                      "Address1": "123 Main St",
                      "Address2": "Suite 1001",
                      "City": "Rock Hill",
                      "ProvinceOrState": "SC",
                      "ZipCd": "29730",
                      "Country": "US"
                  },
                  "ContactDetails": {
                      "FirstNm": "James",
                      "MiddleNm": "A",
                      "LastNm": "Anderson",
                      "Suffix": "Jr",
                      "Phone": "8035551234",
                      "PhoneExtn": "101",
                      "Email": "contact@snowdaze.com",
                      "Fax": "8035555678"
                  },
                  "BusinessType": "ESTE",
                  "SigningAuthority": {
                      "FirstNm": "Ambrane",
                      "MiddleNm": "A",
                      "LastNm": "Cavil",
                      "Suffix": "Jr",
                      "Phone": "8035551000",
                      "PhoneExtn": "111",
                      "BusinessMemberType": "ADMINISTRATOR"
                  }
              }
          },
          "ReturnData": {
              "FormC3": {
                  "UIIdNum": "12-345678-0",
                  "CountyCd": "227",
                  "UITaxRate": 10,
                  "NAICSCd": "123431",
                  "IsNoWageRptd": false,
                  "NumOfEmp": {
                      "TotMonth1Emp": 1,
                      "TotMonth2Emp": 1,
                      "TotMonth3Emp": 1
                  },
                  "MaxEmpCounty": "113",
                  "NumOfOutOfCounty": 3,
                  "IsOutOfStateWages": true,
                  "TotGrossWages": 1000.12,
                  "TotTaxableWages": 1000.01,
                  "UITaxDue": 100,
                  "Interest": 1000.66,
                  "Penalty": 300.98,
                  "PrevQtrAdj": 300.67,
                  "TotUIDue": 1702.31,
                  "EmpDetails": [
                      {
                          "EmployeeSequenceId": "11",
                          "EmployeeId": "396b6972-31b8-4cdf-b782-89852a96b2f6",
                          "EmployeeRef": "Payee01",
                          "SSN": "761-45-6924",
                          "FirstNm": "Michael",
                          "MiddleNm": "Alan",
                          "LastNm": "Johnson",
                          "Suffix": null,
                          "Address": {
                              "Address1": "500 W 2nd St",
                              "Address2": "Apt 301",
                              "City": "Austin",
                              "ProvinceOrState": "TX",
                              "ZipCd": "78701",
                              "Country": "US"
                          },
                          "GrossWages": 1000.12,
                          "OutOfStateTaxableWages": 100
                      }
                  ]
              }
          }
      }
  ]
}

Response JSON

Success Response - This is a sample response for successful API requests.

{
  "SubmissionId": "01a0e7e9-75b0-72ac-bd71-fa19b230fb11",
  "SuccessRecords": [
      {
          "SequenceId": "001",
          "BusinessId": "339a0fee-9318-4058-9c7a-f24887e10a2f",
          "PayerRef": null,
          "RecordId": "01a0e7e9-7c7f-7420-9030-d0071e85df2b",
          "FormType": "C3",
          "EmployeeData": [
              {
                  "EmployeeId": "396B6972-31B8-4CDF-B782-89852A96B2F6",
                  "EmployeeRef": "Payee01"
              }
          ],
          "RemoveEmployeeData": null,
          "Status": "CREATED",
          "StatusTs": "2026-09-28 08:08:33 -04:00",
          "Info": null,
          "Errors": null
      }
  ],
  "ErrorRecords": null,
  "Errors": null
}

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1042-S Automation

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Request Body

Response Body

Request JSON​

Response JSON​

Request JSON

Response JSON