The form type (always "w8ben" for this model).
Enum: W4, W8Ben, W8BenE, W8Imy, W9
The name of the individual or entity associated with the form.
citizenshipCountryRequired
stringThe country of citizenship.. Allowed values: US, AF, AX, AL, AG, AQ, AN, AO, AV, AY (and 248 more)
Enum: 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, 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
residenceAddressOptional
stringThe residential address of the individual or entity.
residenceCityOptional
stringresidenceStateOptional
stringThe state of residence. Required for US and Canada.. Allowed values: AA, AE, AK, AL, AP, AR, AS, AZ, CA, CO (and 65 more)
Enum: AA, AE, AK, AL, AP, AR, AS, AZ, CA, CO, CT, DC, DE, FL, FM, GA, GU, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MH, MI, MN, MO, MP, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PR, PW, RI, SC, SD, TN, TX, UT, VA, VI, VT, WA, WI, WV, WY, AB, BC, MB, NB, NL, NS, NT, NU, ON, PE, QC, SK, YT
residenceZipOptional
stringThe ZIP code of the residence.
residenceCountryRequired
stringThe country of residence.. Allowed values: US, AF, AX, AL, AG, AQ, AN, AO, AV, AY (and 248 more)
Enum: 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, 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
residenceIsMailingOptional
booleanIndicates whether the residence address is the mailing address.
mailingAddressOptional
stringmailingCityOptional
stringThe city of the mailing address.
mailingStateOptional
stringThe state of the mailing address. Required for US and Canada.. Allowed values: AA, AE, AK, AL, AP, AR, AS, AZ, CA, CO (and 65 more)
Enum: AA, AE, AK, AL, AP, AR, AS, AZ, CA, CO, CT, DC, DE, FL, FM, GA, GU, HI, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MH, MI, MN, MO, MP, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, PR, PW, RI, SC, SD, TN, TX, UT, VA, VI, VT, WA, WI, WV, WY, AB, BC, MB, NB, NL, NS, NT, NU, ON, PE, QC, SK, YT
The ZIP code of the mailing address.
mailingCountryRequired
stringThe country of the mailing address.. Allowed values: US, AF, AX, AL, AG, AQ, AN, AO, AV, AY (and 248 more)
Enum: 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, 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
The taxpayer identification number (TIN).
foreignTinNotRequiredOptional
booleanIndicates whether a foreign TIN is not legally required.
The foreign taxpayer identification number (TIN).
referenceNumberOptional
stringA reference number for the form.
The birthday of the individual associated with the form.
treatyCountryOptional
stringThe country for which the treaty applies.. Allowed values: US, AF, AX, AL, AG, AQ, AN, AO, AV, AY (and 248 more)
Enum: 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, 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
treatyArticleOptional
stringThe specific article of the treaty being claimed.
treatyReasonsOptional
stringThe reasons for claiming treaty benefits.
withholdingRateOptional
stringThe withholding rate applied as per the treaty. Must be a percentage with up to two decimals (e.g., 12.50, 0).. Allowed values: 0, 0.0, 0.00, 5, 5.5, 10, 12.50, 15, 20, 25 (and 1 more)
Enum: 0, 0.0, 0.00, 5, 5.5, 10, 12.50, 15, 20, 25, 30
The type of income covered by the treaty.
The name of the signer of the form.