CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION CITIBANK (NEVADA), NATIONAL ASSOCIATION ============================================================================== CITIBANK CREDIT CARD ISSUANCE TRUST / CITIBANK CREDIT CARD MASTER TRUST I For the Due Period Ending May 25, 2005 ============================================================================== This Report relates to the Due Period ending May 25, 2005 and the related Payment Dates for the Notes. <table> <Caption> A. Information Regarding the Master Trust portfolio ------------------------------------------------- 1. Portfolio Yield for the Collateral Certificate ......... 10.27% Yield Component ................................... 16.25% Credit Loss Component ............................. 5.98% 2. New Purchase Rate ..................................... 17.70% 3. Total Payment Rate .................................... 19.09% 4. Principal Payment Rate ................................ 18.23% 5. Aggregate Amount of Principal Receivables in the Trust : Beginning of Due Period ............................ $ 75,919,511,960 Average ............................................ $ 75,042,943,549 Lump Sum Addition .................................. $ 0 End of Due Period .................................. $ 74,802,199,556 </table> 6. Delinquencies (Aggregate outstanding balances in the Accounts that were delinquent by the time periods listed below as of the close of business of the month preceding the Payment Dates, as a percentage of aggregate Receivables as of the last day of the Due Period) : <table> <Caption> Current .......................................... $ 72,980,158,357 5-34 days delinquent ........................... $ 2,725,001,937 35-64 days delinquent ........................... $ 838,293,671 65-94 days delinquent ........................... $ 548,910,199 95-124 days delinquent ........................... $ 450,847,618 125-154 days delinquent ........................... $ 382,781,014 155-184 days delinquent ........................... $ 321,542,296 Current ........................................... 93.27% 5-34 days delinquent ........................... 3.48% 35-64 days delinquent ........................... 1.07% 65-94 days delinquent ........................... 0.70% 95-124 days delinquent ........................... 0.58% 125-154 days delinquent ........................... 0.49% 155-184 days delinquent ........................... 0.41% </table> Page 4 CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION CITIBANK (NEVADA), NATIONAL ASSOCIATION ============================================================================== CITIBANK CREDIT CARD ISSUANCE TRUST / CITIBANK CREDIT CARD MASTER TRUST I For the Due Period Ending May 25, 2005 ============================================================================== <table> <Caption> Current Due Current Due Period on an Period on a Actual Basis (1) Standard Basis (1) B. Information Regarding the Collateral Certificate ------------------------------------------------- (Percentage Basis) 1. Portfolio Yield 10.27% 10.27% 2. Weighted Average Note Rate 3.36% 3.30% 3. Weighted Average Investor Fee Rates Fixed Servicing Fee 0.37% 0.37% Others 0.01% 0.01% 4. Surplus Finance Charge Collections 6.53% 6.59% 5. Surplus Finance Charge Collections For Purposes of Funding Class C Reserve Account 6.22% 6.28% 6. Required Surplus Finance Charge Amount 0.00% 0.00% 7. Aggregate Surplus Finance Charge Amount 6.53% 6.59% minus Required Surplus Finance Charge Amount </table> <table> <Caption> C. Information Regarding the Collateral Certificate ------------------------------------------------- (Dollars Basis) 1. Total Investor Collections $12,034,999,668 $12,034,895,501 Principal Collections $11,242,554,283 $11,242,554,283 Finance Charge Collections $ 792,445,385 $ 792,341,218 2. Investor Default Amount $ 292,863,310 $ 292,863,310 3. Investor Monthly Interest $ 167,454,447 $ 164,585,708 4. Investor Monthly Fees Fixed Servicing Fees $ 18,984,674 $ 19,010,369 Others $ 325,585 $ 325,585 5. Surplus Finance Charge Collections $ 312,817,369 $ 315,556,246 6. Required Surplus Finance Charge Collections $ 0 $ 0 7. Aggregate Surplus Finance Charge Amount $ 312,817,369 $ 315,556,246 minus Required Surplus Finance Charge Amount </table> (1) Values for "Current Due Period on an Actual Basis" reflect, in the case of a first due period close of a tranche of Notes, activity from the close date until the first due period end, or, as in the case of Investor Monthly Interest and certain fees, until the first Monthly Interest Date. Values for "Current Due Period on a Standard Basis" reflect activity for the entire current period, as if all Notes had already been outstanding prior to the first day of such period. All percents are based on actual cash revenue or expense for the period, converted to an annualized percent using day count appropriate for the item, either 30/360, actual/360, or actual/actual. Depending on the item, cash expenses may accrue from April 27, 2005 to May 25, 2005 , 29 days, or May 9 , 2005 to June 6 , 2005 , 29 days (standard basis). Page 5 CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION CITIBANK (NEVADA), NATIONAL ASSOCIATION ============================================================================== CITIBANK CREDIT CARD ISSUANCE TRUST / CITIBANK CREDIT CARD MASTER TRUST I For the Due Period Ending May 25, 2005 ============================================================================== <table> <Caption> D. Information Regarding Regarding Notes of Citiseries ---------------------------------------------------- (Aggregate Basis) 1a. Class A Outstanding Dollar Principal Amount ............ $54,440,249,918 For all Classes except Class 2001-A3 (Dakota) ............ $39,440,249,918 For Class 2001-A3 (Dakota) ............................... $15,000,000,000 1b. Class B Outstanding Dollar Principal Amount ............ $ 2,640,000,000 1c. Class C Outstanding Dollar Principal Amount ............ $ 4,575,000,000 2a. Targeted Deposit to Class A Interest Funding Account ..... $ 140,475,323 2b. Targeted Deposit to Class B Interest Funding Account ..... $ 7,609,004 2c. Targeted Deposit to Class C Interest Funding Account ..... $ 19,370,119 3a. Balance in the Class A Interest Funding Account ......... $ 279,060,003 3b Balance in the Class B Interest Funding Account ......... $ 18,532,268 3c Balance in the Class C Interest Funding Account ......... $ 46,994,235 4a. Targeted Deposit to Class A Principal Funding Account .... $ 0 4b. Targeted Deposit to Class B Principal Funding Account .... $ 0 4c. Targeted Deposit to Class C Principal Funding Account .... $ 0 5a. Balance in the Class A Principal Funding Account ........ $ 0 5b. Balance in the Class B Principal Funding Account ........ $ 0 5c. Balance in the Class C Principal Funding Account ........ $ 0 6. Targeted Deposit to Class C Reserve Account ............. $ 0 7. Balance in the Class C Reserve Account .................. $ 0 </table> <table> <Caption> Data Applicable to all Classes Except 2001-A3 (Dakota) ------------------------------------------------------- 8a. Maximum enhancement amount available to Outstanding Class A Notes from Class B Notes ............ $ 2,359,674,656 8b. As a Percentage of Class A Outstanding Dollar Principal Amount ................................. 5.98291% 8c. Maximum enhancement amount available to Outstanding Class A Notes from Class C Notes ............ $ 3,146,231,560 8d. As a Percentage of Class A Outstanding Dollar Principal Amount ................................. 7.97721% 8e. Maximum enhancement amount available to Outstanding Class B Notes from Class C Notes ............ $ 3,519,999,912 8f. As a Percentage of Class B Outstanding Dollar Principal Amount ................................. 133.33333% </table> <table> <Caption> Data Applicable only to Class 2001-A3 (Dakota) (1) ------------------------------------------------------- 9a. Maximum enhancement amount available to Outstanding Class 2001-A3 Notes (Dakota) from Class C Notes ......... $ 1,042,780,500 9b. As a Percentage of Class 2001-A3 Notes (Dakota) Outstanding Dollar Principal Amount ..................... 6.95187% 9c. Maximum enhancement amount available to Outstanding Class 2001-A3 Notes (Dakota) from Class B Notes ......... $ 0 9d. As a Percentage of Class 2001-A3 Notes (Dakota) Outstanding Dollar Principal Amount ..................... 0.00000% </table> - ----------------------------------------------------------------------------- (1) All conditions precedent were satisfied for the issuance of new tranches of Dakota CP Notes during Due Period ending May 25, 2005, including the condition that the weighted average remaining life to Expected Principal Payment Date of all Dakota CP Notes be 60 days or less. Page 6 CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION CITIBANK (NEVADA), NATIONAL ASSOCIATION ============================================================================== CITIBANK CREDIT CARD ISSUANCE TRUST / CITIBANK CREDIT CARD MASTER TRUST I For the Due Period Ending May 25, 2005 ============================================================================== <table> <Caption> Data Applicable to all Classes ------------------------------- 10a. Reduction in the Class A Nominal Liquidation Amount resulting from an allocation of Investor Charge-Offs ................................ $ 0 10b. Reduction in the Class B Nominal Liquidation Amount resulting from an allocation of Investor Charge-Offs or a reallocation of Principal Collections to pay interest on Class A Notes ........... $ 0 10c. Reduction in the Class C Nominal Liquidation Amount resulting from an allocation of Investor Charge-Offs or a reallocation of Principal Collections to pay interest on Class A or Class B Notes . $ 0 11a. Reimbursement of Class A Nominal Liquidation Amount .... $ 0 11b. Reimbursement of Class B Nominal Liquidation Amount .... $ 0 11c. Reimbursement of Class C Nominal Liquidation Amount .... $ 0 </table> <table> <Caption> E. Information Regarding Distributions to Noteholders of Citiseries ----------------------------------------------------------------- (Aggregate Basis) 1a. The total amount of the distribution to Class A Noteholders on the applicable Payment Dates ......................... $ 98,538,350 1b. The total amount of the distribution to Class B Noteholders on the applicable Payment Dates ......................... $ 12,552,617 1c. The total amount of the distribution to Class C Noteholders on the applicable Payment Dates ......................... $ 14,320,053 2a. The amount of the distribution set forth in item 1(a) above in respect of principal on the Class A Notes ........ $ 0 2b. The amount of the distribution set forth in item 1(b) above in respect of principal on the Class B Notes ........ $ 0 2c. The amount of the distribution set forth in item 1(c) above in respect of principal on the Class C Notes ........ $ 0 3a. The amount of the distribution set forth in item 1(a) above in respect of interest on the Class A Notes ........ $ 98,538,350 3b. The amount of the distribution set forth in item 1(b) above in respect of interest on the Class B Notes ........ $ 12,552,617 3c. The amount of the distribution set forth in item 1(c) above in respect of interest on the Class C Notes ........ $ 14,320,053 4a. The amount, if any, by which the Adjusted Outstanding Dollar Principal Amount of the Class A Notes exceeds the Class A Nominal Liquidation Amount as of the Record Date with respect to the applicable Payment Dates ...... $ 0 4b. The amount, if any, by which the Adjusted Outstanding Dollar Principal Amount of the Class B Notes exceeds the Class B Nominal Liquidation Amount as of the Record Date with respect to the applicable Payment Dates ...... $ 0 4c. The amount, if any, by which the Adjusted Outstanding Dollar Principal Amount of the Class C Notes exceeds the Class C Nominal Liquidation Amount as of the Record Date with respect to the applicable Payment Dates ...... $ 0 </table> Page 7 CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION CITIBANK (NEVADA), NATIONAL ASSOCIATION ============================================================================== CITIBANK CREDIT CARD ISSUANCE TRUST / CITIBANK CREDIT CARD MASTER TRUST I For the Due Period Ending May 25, 2005 ============================================================================== <table> <Caption> F. Information Regarding Notes of Citiseries (2) ---------------------------------------------- (Individual Tranche Basis) 1. Outstanding Dollar Principal Amount, Interest Payments and Deposits to Interest Funding Sub-Accounts Class/ Outstanding Monthly Targeted Actual Cumulative Interest Interest Tranche Dollar Accretion Interest Interest Shortfall Funding Payment Principal Monthly Monthly In Interest Sub-Account On Payment Amount Deposit Deposit Funding Balance Date Sub-Account - ------------- --------------- ----------- ----------- ----------- ----------- ----------- ------------ Class 2000-A1 1,500,000,000 0 4,109,875 4,109,875 0 8,180,756 0 Class 2000-A3 1,000,000,000 0 2,778,250 2,778,250 0 2,778,250 0 Class 2000-B1 350,000,000 0 1,005,725 1,005,725 0 2,958,770 0 Class 2000-B2 150,000,000 0 423,829 423,829 0 861,785 0 Class 2000-C1 600,000,000 0 3,725,000 3,725,000 0 11,175,000 0 Class 2000-C2 200,000,000 0 631,772 631,772 0 1,284,602 0 Class 2001-A1 1,500,000,000 0 4,106,521 4,106,521 0 4,106,521 0 Class 2001-A2 2,250,000,000 0 6,069,156 6,069,156 0 6,069,156 0 Class 2001-A3 15,000,000,000 0 31,697,408 31,697,408 0 0 31,697,408 Class 2001-A4 1,108,750,000 0 3,209,225 3,209,225 0 6,211,402 0 Class 2001-A6 1,250,000,000 0 3,400,833 3,400,833 0 0 18,292,877 Class 2001-A7 420,000,000 0 1,191,096 1,191,096 0 1,191,096 0 Class 2001-B1 350,000,000 0 1,061,850 1,061,850 0 2,159,096 0 Class 2001-B2 390,000,000 0 1,155,267 1,155,267 0 0 3,428,533 Class 2001-C1 500,000,000 0 1,758,596 1,758,596 0 3,575,812 0 Class 2001-C2 250,000,000 0 808,761 808,761 0 0 808,761 Class 2001-C3 500,000,000 0 2,770,833 2,770,833 0 2,770,833 0 Class 2001-C4 100,000,000 0 321,417 321,417 0 0 321,417 Class 2002-A1 1,000,000,000 0 2,576,811 2,576,811 0 9,799,459 0 Class2002-A10 1,000,000,000 0 2,876,111 2,876,111 0 0 2,876,111 Class 2002-A4 750,000,000 0 2,017,917 2,017,917 0 0 2,017,917 Class 2002-A5 1,250,000,000 0 3,177,083 3,177,083 0 0 9,743,056 Class 2002-A8 1,000,000,000 0 2,642,222 2,642,222 0 0 2,642,222 Class 2002-A9 1,000,000,000 0 2,541,667 2,541,667 0 0 7,794,444 Class 2002-B1 400,000,000 0 1,254,000 1,254,000 0 0 3,572,000 Class 2002-C1 400,000,000 0 1,359,294 1,359,294 0 1,359,294 0 Class 2002-C2 350,000,000 0 2,027,083 2,027,083 0 8,108,333 0 Class 2002-C3 275,000,000 0 951,042 951,042 0 0 2,916,528 Class 2003-A1 1,250,000,000 0 3,375,656 3,375,656 0 6,863,834 0 Class2003-A10 500,000,000 0 1,419,606 1,419,606 0 0 7,326,824 Class2003-A11 750,000,000 0 1,994,144 1,994,144 0 4,054,759 0 Class 2003-A2 1,500,000,000 0 3,935,625 3,935,625 0 17,583,094 0 Class 2003-A3 750,000,000 0 2,072,479 2,072,479 0 5,828,500 0 Class 2003-A4 1,250,000,000 0 3,358,333 3,358,333 0 0 9,858,333 Class 2003-A5 1,000,000,000 0 2,083,333 2,083,333 0 4,166,667 0 Class 2003-A6 1,250,000,000 0 3,475,188 3,475,188 0 3,475,188 0 Class 2003-A7 650,000,000 0 1,760,642 1,760,642 0 6,724,332 0 Class 2003-A8 750,000,000 0 1,979,375 1,979,375 0 7,357,005 0 Class 2003-A9 2,500,000,000 0 7,233,333 7,233,333 0 7,233,333 0 Class 2003-B1 500,000,000 0 1,309,028 1,309,028 0 0 4,152,778 Class 2003-C1 325,000,000 0 1,105,474 1,105,474 0 2,325,307 0 Class 2003-C2 150,000,000 0 523,125 523,125 0 0 1,535,625 Class 2003-C3 150,000,000 0 556,250 556,250 0 1,112,500 0 Class 2003-C4 300,000,000 0 1,250,000 1,250,000 0 0 7,500,000 Class 2004-A1 2,750,000,000 0 5,843,750 5,843,750 0 29,218,750 0 Class 2004-A2 1,480,000,000 0 4,364,284 4,364,284 0 4,364,284 0 Class 2004-A3 1,000,000,000 0 2,781,931 2,781,931 0 5,384,383 0 Class 2004-A4 1,750,000,000 0 4,677,616 4,677,616 0 16,995,164 0 Class 2004-A5 473,410,131 0 1,339,519 1,339,519 0 2,595,319 0 Class 2004-A6 394,508,442 0 1,132,888 1,132,888 0 2,194,970 0 Class 2004-A7 1,200,000,000 0 3,492,667 3,492,667 0 3,492,667 0 Class 2004-A8 750,000,000 0 2,091,402 2,091,402 0 9,140,694 0 Class 2004-B1 250,000,000 0 712,569 712,569 0 0 712,569 Class 2004-B2 250,000,000 0 686,736 686,736 0 0 686,736 Class 2004-C1 225,000,000 0 701,250 701,250 0 0 701,250 Class 2005-A1 338,581,344 0 965,716 965,716 0 965,716 0 Class 2005-A2 875,000,000 0 2,414,502 2,414,502 0 4,546,354 0 Class 2005-A3 1,250,000,000 0 6,289,158 6,289,158 0 0 6,289,158 Class 2005-C1 75,000,000 0 343,750 343,750 0 962,500 0 Class 2005-C2 175,000,000 0 536,472 536,472 0 0 536,472 </table> <table> <Caption> 2. Principal Payments and Deposits to Principal Funding Sub-Accounts Class/Tranche Targeted Actual Cumulative Principal Principal Principal Principal Shortfall in Funding Payment On Monthly Monthly Principal Sub-Account Payment Date Deposit Deposit Funding Balance Sub-Account - --------------- --------------- --------------- --------------- --------------- --------------- Nothing to report for this period. </table> ----------------------------------------------------------------------------- (2) The information reported is for the Due Period ending and giving effect to all deposits, allocations, reallocations and payments to be made in the month after the end of this Due Period. Page 8 CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION CITIBANK (NEVADA), NATIONAL ASSOCIATION ============================================================================== CITIBANK CREDIT CARD ISSUANCE TRUST / CITIBANK CREDIT CARD MASTER TRUST I For the Due Period Ending May 25, 2005 ============================================================================== <table> <Caption> 3. Deposits to and Withdrawals from Class C Reserve Sub-Accounts ------------------------------------------------------------- Class/Tranche Targeted Actual Cumulative Withdrawals Class C Deposit to Deposit to Shortfall in from Class C Reserve Class C Class C Class C Reserve Sub-Account Reserve Reserve Reserve Sub-Account Balance Sub-Account Sub-Account Sub-Account - --------------- --------------- --------------- --------------- --------------- --------------- Nothing to report for this period. </table> <table> <Caption> 4. Maximum Enhancement Amount Available to Class A Notes; Class A Usage of Class B and Class C Subordinated Amounts Class/Tranche Maximum Maximum Class A Class A Cumulative Cumulative Enhancement Enhancement Usage of Usage of Class A Class A Amount Amount Class B Class C Usage of Usage of Available Available Subordinated Subordinated Class B Class C from Class from Class Amount for Amount for Subordinated Subordinated B Notes C Notes this Due this Due Amount Amount Period Period - --------------- ------------- ------------- ------------- ------------- ------------- -------------- Class 2000-A1 89,743,650 119,658,150 Class 2000-A3 59,829,100 79,772,100 Class 2001-A1 89,743,650 119,658,150 Class 2001-A2 134,615,475 179,487,225 Class 2001-A3 0 1,042,780,500 Class 2001-A4 66,335,515 88,447,316 Class 2001-A6 74,786,375 99,715,125 Class 2001-A7 25,128,222 33,504,282 Class 2002-A1 59,829,100 79,772,100 Class 2002-A10 59,829,100 79,772,100 Class 2002-A4 44,871,825 59,829,075 Class 2002-A5 74,786,375 99,715,125 Class 2002-A8 59,829,100 79,772,100 Class 2002-A9 59,829,100 79,772,100 Class 2003-A1 74,786,375 99,715,125 Class 2003-A10 29,914,550 39,886,050 Class 2003-A11 44,871,825 59,829,075 Class 2003-A2 89,743,650 119,658,150 Class 2003-A3 44,871,825 59,829,075 Class 2003-A4 74,786,375 99,715,125 Class 2003-A5 59,829,100 79,772,100 Class 2003-A6 74,786,375 99,715,125 Class 2003-A7 38,888,915 51,851,865 Class 2003-A8 44,871,825 59,829,075 Class 2003-A9 149,572,750 199,430,250 Class 2004-A1 164,530,025 219,373,275 Class 2004-A2 88,547,068 118,062,708 Class 2004-A3 59,829,100 79,772,100 Class 2004-A4 104,700,925 139,601,175 Class 2004-A5 28,323,702 37,764,920 Class 2004-A6 23,603,085 31,470,767 Class 2004-A7 71,794,920 95,726,520 Class 2004-A8 44,871,825 59,829,075 Class 2005-A1 20,257,017 27,009,345 Class 2005-A2 52,350,462 69,800,587 Class 2005-A3 74,786,375 99,715,125 </table> Page 9 CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION CITIBANK (NEVADA), NATIONAL ASSOCIATION ============================================================================== CITIBANK CREDIT CARD ISSUANCE TRUST / CITIBANK CREDIT CARD MASTER TRUST I For the Due Period Ending May 25, 2005 ============================================================================== <table> <Caption> 5. Maximum Enhancement Amount Available to Class B Notes; Class B Usage of Class C Subordinated Amounts Class/Tranche Maximum Enhancement Class B Usage of Cumulative Class B Amount Available from Class C Subordinated Usage of Class C Class C Notes Amount for this Due Subordinated Amount Period - --------------- ------------------------ ------------------------ ------------------------ Class 2000-B1 466,666,654 Class 2000-B2 199,999,995 Class 2001-B1 466,666,654 Class 2001-B2 519,999,986 Class 2002-B1 533,333,319 Class 2003-B1 666,666,649 Class 2004-B1 333,333,325 Class 2004-B2 333,333,325 </table> <table> <Caption> 6. Reductions of and Reimbursements to Nominal Liquidation Amount Class/Tranche Reduction Reduction Cumulative Cumulative Reimbursements Resulting from Resulting from Reduction Reduction of prior an Allocation from a Resulting from Resulting from reductions of of Investor Reallocation an Allocation an Reallocation Nominal Charge-offs of Principal of Investor of Principal Liquidation for this Due Collections Charge-offs Collections to Amount for Period to pay (net of pay interest on this Due interest on Reimbursements) senior classes Period senior of Notes (net of classes of Reimbursements) Notes for this Due Period - --------------- ---------------- ---------------- ---------------- ---------------- ---------------- Nothing to report for this period. </table> Page 10 IN WITNESS WHEREOF, the undersigned has duly executed and delivered this Report this __________ day of June, 2005. CITIBANK (SOUTH DAKOTA), NATIONAL ASSOCIATION, As Managing Beneficiary of Citibank Credit Card Issuance Trust and As Servicer of Citibank Credit Card Master Trust I By: /s/ Andrew Lubliner ____________________________________ Name: Andrew Lubliner Title: Authorized Representative Page 11