SECURITIES AND EXCHANGE COMMISSION
           Washington, D.C.  20549
                    FORM 8-K
           CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange
Act of 1934

Date of Report (date of earliest event reported): May 21, 2001

BANC ONE HELOC TRUST 1999-1
   (Exact name of registrant as specified in its charter)

 United States       	333-59845-01 	 	   36-7282500
 (State or Other 	(Commission File	(I.R.S Employer
Jurisdiction of  	 Number)		Identification
Incorporation					Number)

c/o Bank One, National Association
Corporate Trust Services Division - 1 N. State Street,
9th Floor
Chicago IL
(Address of Principal Executive Offices)

60670
(Zip Code)

Registrant's telephone number, including area code:		312-336-9730

Item 5.	Other Events
On behalf of Banc One HELOC Trust 1999-1, a Trust created pursuant to the
Pooling Agreement, dated May 31, 1999, the Paying Agent has caused to
be filed with the Commission, the Monthly Report dated May 21, 2001.
The Monthly Report is filed pursuant to and in accordance with (1) numerous
no-action letters (2) current Commission policy in the area.  The filing of the
Monthly Report will occur subsequent to each monthly distribution to the
holders of the Trust's Investor Certificates.

A.	Monthly Report Information: Aggregate distribution information
	for the current distribution date May 21, 2001.
		 Principal	    Interest		  Ending Balance
Cede & Co.	$11,562,710.84     $1,583,039.23	 $ 334,645,977.42


B.	No delinquency in payment under the Transferor Certificate, or
	the MBIA Insurance Policy has occurred.

C.	Have any deficiencies occurred?  NO. Date: Amount:

D.	Were any amounts paid or are any amounts payable under the
	MBIA Insurance Policy?  NO Amount:

E.	Are there any developments with respect to the MBIA Insurance
	Policy?  NONE.

F.	Item 1:  Legal Proceedings:  NONE

G.	Item 2:  Changes in Securities:  NONE

H.	Item 4:  Submission of Matters to a Vote of Security Holders:  NONE

I.	Item 5:  Other Information - Items 1, 2, 4, 5 if applicable:  NOT
	APPLICABLE

Item 7.	Monthly Statements and Exhibits
Exhibit No. 1.	Monthly Statement to Certificateholders dated May 21, 2001






	Statement to Certificateholders (Page 1 of 2)

	Distribution Date:						5/21/01

		INVESTOR CERTIFICATES DISTRIBUTION SUMMARY
		(PER $1000 ORIGINAL PRINCIPAL AMOUNT)

	A.	INTEREST & PRINCIPAL DISTRIBUTIONS TO INVESTORS

		Investor Certificate Interest Distributed	3.166078
		Investor Certificate Interest Shortfall Distributed   0.000000
		Remaining Unpaid Investor Certificate Interest Shortfall	0.000000

		Managed Amortization Period ? (Yes=1; No=0)	1
		Investors Certificate Principal Distributed	23.125422
		  Principal Distribution Amount	22.900831
		     Maximum Principal Payment	39.347960
		     Alternative Principal Payment		22.900831
		     Principal Collections less Additional Balances	22.900831
		  Investor Loss Amount Distributed to Investors	0.166921
		  Accelerated Principal Distribution Amount	0.057669
		  Credit Enhancement Draw Amount		0.00

		Total Amount Distributed to Certificateholders (P & I)	26.291500

	B.	INVESTOR CERTIFICATE PRINCIPAL BALANCE
		Beginning Investor Certificate Balance	346,208,688.25
		Ending Investor Certificate Balance	334,645,977.42
		Beginning Invested Amount		354,073,504.49
		Ending Invested Amount			342,539,628.35
		Investor Certificateholder Floating Allocation Percentage	97.2130%
		Pool Factor					0.6692920
		Liquidation Loss Amount for Liquidated Loans	85,853.46
		Unreimbursed Liquidation Loss Amount	0.00

	C.	POOL INFORMATION

		Beginning Pool Balance	364,224,391.94
		Ending Pool Balance	352,688,123.07
		Servicing Fee		151,760.16

	D.	INVESTOR CERTIFICATE RATE

		Investor Certificate Rate	5.310000%
		LIBOR Rate	5.050000%
		Maximum Rate	8.628586%

	E.	DELINQUENCY & REO STATUS

		Delinquent 30-59 days
		    No. of Accounts	130
		   Trust Balances	3,837,481.00
		Delinquent 60-89 days
		    No. of Accounts	51
		   Trust Balances	1,423,619.00
		Delinquent 90+ days
		    No. of Accounts	65
		   Trust Balances	2,513,166.00
		Delinquent 9+ Months
		    No. of Accounts	0
		   Trust Balances	0.00

		REO
		    No. of Accounts	0
		   Trust Balances	0.00


	Statement to Certificateholders (Page 2 of 2)

	Distribution Date:						5/21/01

		IN WITNESS WHEREOF, the undersigned has caused this
		Certificate to be duly executed and certifies to the
		best of her knowledge and belief that information is true
		and correct this 16th day of May, 2001

		       Bank One, N.A.
		       as Servicer

			/s/ Tracie Klein
		       _______________________________________

		       Tracie Klein
		       Vice President

	Distribution List:

	"   Keith Richardson - Bank One, N.A."



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

BANC ONE HELOC TRUST 1999-1

By:	/s/ Keith Richardson
Name:	Keith Richardson
Dated May 21, 2001