UNITED STATES

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) ~~November 9~~ January 17, ~~2005~~ 2006

Onyx Acceptance Financial Corporation

Onyx Acceptance Owner Trust 2005-B

(Issuer with respect to Certificates)

Onyx Acceptance Financial Corporation

(Exact Name of Registrant as Specified in its Charter)

Delaware

(State or Other Jurisdiction of Incorporation)

333-113136 333-113136-4		33-0629768 51-6566857
333-113136-4		51-6566857
(Commission File Numbers)		(Commission File Numbers)
(Commission File Number)		(Registrant’s I.R.S. Employer Identification No.)
27051 Towne Center Drive, Suite 200 Foothill Ranch, California		92610
27051 Towne Centre Drive
(Address of Principal Executive Offices)		(Address of Principal Executive Offices)
Foothill Ranch, CA		92610
(Address of Principal Executive Office)		(Zip Code)

(949) 465-~~3500~~ 3900

(Registrant’s Telephone Number, Including Area Code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 1 8.01. ~~Entry~~Other ~~into Material Definitive Agreement~~ Events.

On ~~November~~behalf 9,of ~~2005,~~the ~~Financial~~Onyx ~~Guaranty~~Acceptance ~~Insurance~~Owner ~~Company,~~Trust ~~Onyx Acceptance~~2005-B, ~~Corporation~~ (the “~~Onyx~~Trust”), a trust created pursuant to the Trust Agreement, dated as of June 27, 2005, between Onyx Acceptance Financial Corporation, ~~(the~~as ~~“Depositor”)~~depositor, Wilmington Trust Company, as owner trustee, and JPMorgan Chase Bank, N.A., as trust agent, the Registrant has caused to be filed with the Securities and Exchange Commission (the “~~Indenture Trustee~~Commission”), ~~entered~~the ~~into~~December 2005 anmonthly ~~amendment~~Distribution ofDate Statement with respect to the ~~Insurance~~Trust. This Distribution Date Statement is filed pursuant to and ~~Reimbursement~~in ~~Agreement,~~accordance ~~dated~~with asa ofno ~~July~~action request filed on August 21, ~~2005~~1995 (with the ~~“Amendment”)~~Commission toby ~~amend~~Onyx Acceptance ~~the~~Financial ~~definitions~~Corporation, originator of ~~“Delinquent~~the ~~Contract”~~Onyx Acceptance Owner Trust 2005-B, and ~~“Spread~~Onyx ~~Account~~Acceptance ~~Increase~~Corporation, ~~Condition”.~~as Aservicer, ~~copy~~and the affirmative response thereto by the Commission, dated September 22, 1995. The filing of the ~~Amendment~~monthly isDistribution ~~filed~~Date Statement aswill ~~Exhibit~~occur ~~10.1~~subsequent to ~~this~~each ~~Form~~monthly ~~8-K~~distribution ~~and~~to isthe ~~incorporated~~Trust’s ~~herein~~securityholders byuntil ~~reference~~and inunless ~~its~~exempted ~~entirety.~~under provisions of the Securities Exchange Act of 1934.

Item 9.01. Financial Statements and Exhibits.

(a) ~~Not applicable.~~ Financial Statements None

(bc) ~~Not applicable.~~ Exhibits

Exhibit No.		Document Description

20		Monthly Distribution Date Statement of the Onyx Acceptance Owner Trust 2005-B for the month of December 2005.

Exhibit No.		Document Description
10.1		Amendment to Insurance and Reimbursement Agreement, dated as of October 31, 2005, among Financial Guaranty Insurance Company, Onyx, the Depositor and the Indenture Trustee.

SIGNATURES

2Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

~~SIGNATURES~~Onyx Acceptance Financial Corporation By: /s/ Steve Richter Name: Steve Richter Title: Assistant Vice President

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant, Onyx Acceptance Financial Corporation and the Co-Registrant, Onyx Acceptance Owner Trust 2005-B by its Depositor, Onyx Acceptance Financial Corporation, have each duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. 2

November 9, 2005	ONYX ACCEPTANCE FINANCIAL CORPORATION
	By:	/s/ Albert A. Ciafre
	Name:	Albert A. Ciafre
	Title:	Assistant Vice President
November 9, 2005	ONYX ACCEPTANCE OWNER TRUST 2005-B
	By:	Onyx Acceptance Financial Corporation, Depositor of Onyx Acceptance Owner Trust 2005-B
	By:	/s/ Albert A. Ciafre
	Name:	Albert A. Ciafre
	Title:	Assistant Vice President

Filing Compare · Onyx Acceptance Owner Trust 2005-B