FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   NANN BERNHARD 2. Date of Event Requiring Statement (Month/Day/Year) 03/12/2007 3. Issuer Name and Ticker or Trading Symbol FAIR ISAAC CORP [FIC] (Last) (First) (Middle) 901 MARQUETTE AVENUE, SUITE 3200 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Chief Technology Officer 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) MINNEAPOLIS, MN 55402 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 16,032.9239 (1) D   Common Stock 208.3153 (2) I By wife

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (right to buy)	12/18/2007(3)	12/17/2013	Common Stock	5,000	$ 41.74	D	Â
Employee Stock Option (right to buy)	12/20/2006(3)	12/19/2012	Common Stock	20,000	$ 43.58	D	Â
Employee Stock Option (right to buy)	06/09/2006(3)	06/08/2015	Common Stock	6,000	$ 35.59	D	Â
Employee Stock Option (right to buy)	11/15/2005(3)	11/14/2014	Common Stock	7,500	$ 32.01	D	Â
Employee Stock Option (right to buy)	08/02/2005(3)	08/01/2014	Common Stock	5,000	$ 28.75	D	Â
Employee Stock Option (right to buy)	11/17/2004(3)	11/16/2013	Common Stock	11,250	$ 35.5	D	Â
Employee Stock Option (right to buy)	07/28/2004(3)	07/08/2013	Common Stock	30,000	$ 38.5667	D	Â
Restricted Stock Units	12/18/2006(4)	  (4)	Common Stock	5,000	$ 0	D	Â
Employee Stock Option (right to buy)	07/28/2004(3)	05/10/2007	Common Stock	1,875	$ 38.5667	I	By wife
Employee Stock Option (right to buy)	11/17/2004(3)	05/10/2007	Common Stock	750	$ 35.5	I	By wife
Employee Stock Option (right to buy)	11/15/2005(3)	05/10/2007	Common Stock	250	$ 32.01	I	By wife
Employee Stock Option (right to buy)	12/20/2006(3)	05/10/2007	Common Stock	250	$ 43.58	I	By wife

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
NANN BERNHARD 901 MARQUETTE AVENUE SUITE 3200 MINNEAPOLIS, MN 55402	Â	Â	  Chief Technology Officer	Â

Signatures

/s/ Nancy Fraser, Attorney-in-fact		03/20/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Consists of two separate awards of 8,000 restricted stock shares granted on July 21, 2006 and May 23, 2006. Both restricted stock grants vest 25% on each of the four anniversaries following the grant date. Also, includes 32.9239 shares from reporting person's ESPP and reinvested dividends.
(2)	Consists of 208.3153 shares from reporting person's spouse's ESPP and reinvested dividends, whose employment terminated on February 9, 2007.
(3)	This option vests in four equal annual installments commencing on this date.
(4)	The restricted stock units vest in four equal annual installments beginning on the anniversary date of the grant and vested shares will be delivered to the reporting person as soon as practicable thereafter.

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