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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 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)           April 25, 2007
                                                 -------------------------------


                             FAIR ISAAC CORPORATION
                             ----------------------
             (Exact name of registrant as specified in its charter)


          Delaware                 0-16439                    94-1499887
          --------                 -------                    ----------
(State or other jurisdiction     (Commission                (IRS Employer
     of incorporation)           File Number)             Identification No.)

    901 Marquette Avenue, Suite 3200
         Minneapolis, Minnesota                               55402-3232
         ----------------------                               ----------
(Address of principal executive offices)                      (Zip Code)

Registrant's telephone number, including area code         612-758-5200
                                                   -----------------------------

     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 (see General Instruction A.2. below):

     |_| Written communications pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)

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

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

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

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TABLE OF CONTENTS Item 2.02. Results of Operations and Financial Condition. Item 9.01. Financial Statements and Exhibits. Signature Exhibit Index Exhibit 99.1 i

Item 2.02. Results of Operations and Financial Condition. On April 25, 2007, Fair Isaac Corporation (the "Company") reported its financial results for the quarter and six months ended March 31, 2007. See the Company's press release dated April 25, 2007, which is furnished as Exhibit 99.1 hereto and incorporated by reference in this Item 2.02. Item 9.01. Financial Statements and Exhibits. (d) Exhibits. Exhibit Description - ------- ----------- 99.1 Press Release dated April 25, 2007 1

SIGNATURE 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 hereunto duly authorized. FAIR ISAAC CORPORATION By /s/ Charles M. Osborne ------------------------------------------------ Charles M. Osborne Vice President and Chief Financial Officer Date: April 25, 2007 2

EXHIBIT INDEX Exhibit No. Description Manner of Filing - ----------- ----------- ---------------- 99.1 Press Release dated April 25, 2007 Filed Electronically

                                                                    EXHIBIT 99.1

                Fair Isaac Announces Second Quarter 2007 Results

                        Total revenue of $201.0 million;

                           Earnings per share of $0.37

     MINNEAPOLIS--(BUSINESS WIRE)--April 25, 2007--Fair Isaac Corporation
(NYSE:FIC), the leading provider of analytics and decision technology, today
announced the financial results for its second quarter ended March 31, 2007.

     Second Quarter Fiscal 2007 Results

     The company reported second quarter revenues of $201.0 million in fiscal
2007 versus $208.2 million reported in the prior year period. Net income for the
second quarter of fiscal 2007 totaled $21.4 million, or $0.37 per diluted share,
versus $27.0 million, or $0.40 per diluted share, reported in the prior year
period. Second quarter fiscal 2007 results included a $1.5 million pre-tax
operating gain from the previously announced sale of the mortgage product line
and an associated $1.9 million increase in tax expense.

     Fiscal 2007 Year-to-date Results

     The company reported year-to-date revenues of $409.2 million in fiscal 2007
versus $410.9 million reported in the prior year period. Net income for
year-to-date fiscal 2007 totaled $52.7 million, or $0.89 per diluted share,
versus $55.4 million, or $0.83 per diluted share, reported in the prior year
period.

     Second Quarter Fiscal 2007 Revenues Highlights

     Revenues for second quarter fiscal 2007 across each of the company's four
operating segments were as follows:

     --   Strategy Machine(R) Solutions revenues were $111.7 million in the
          second quarter compared to $118.9 million in the prior year quarter,
          or a decrease of 6.0%, primarily due to a decline associated with
          fraud, consumer, customer management, and mortgage products.

     --   Scoring Solutions revenues increased to $42.3 million in the second
          quarter compared to $41.8 million in the prior year quarter, or by
          1.4%, primarily due to an increase in revenues from risk scoring
          services at the credit reporting agencies and the FICO Expansion(TM)
          score.

     --   Professional Services revenues were $37.5 million in the second
          quarter compared to $38.7 million in the prior year quarter, or a
          decrease of 3.0%, primarily due to a decline associated with industry
          consulting, fraud, and collections and recovery implementation
          services, offset by an increase in revenues derived from customer
          management implementation services.

     --   Analytic Software Tools revenues increased to $9.4 million in the
          second quarter compared to $8.8 million in the prior year quarter, or
          by 6.5%, due to an increase in revenues generated from sales of the
          Model Builder product.

     Fiscal 2007 Year-to-date Revenues Highlights

     Revenues for fiscal 2007 year-to-date across each of the company's four
operating segments were as follows:

     --   Strategy Machine(R) Solutions revenues were $222.4 million compared to
          $230.8 million in the prior year, or a decrease of 3.7%, primarily due
          to a decline associated with mortgage, consumer, fraud, and
          originations products, offset by an increase in revenues derived from
          collections and recovery products.

     --   Scoring Solutions revenues were $87.3 million compared to $87.9
          million in the prior year, or a decrease of 0.8%, primarily due to a
          decrease in revenues derived from our PreScore(R) Service.

     --   Professional Services revenues increased to $75.9 million compared to
          $71.5 million in the prior year, or by 6.2%, primarily due to an
          increase in revenues derived from customer management and model
          development services, offset by a decline associated with collections
          and recovery implementation services, and industry consulting.

     --   Analytic Software Tools revenues increased to $23.6 million compared
          to $20.7 million in the prior year, or by 14.4%, due to an increase in
          revenues generated from sales of the Blaze Advisor(TM) product.

     Bookings Highlights

     The bookings for the second quarter were $58.9 million versus $106.0
million in the same period last year. The company defines a "new booking" as
estimated future contractual revenues, including agreements with perpetual,
multi-year and annual terms. Management regards the volume of new bookings
achieved as one indicator of future revenues, but they are not comparable to,
nor should they be substituted for, an analysis of the company's revenues.

     Balance Sheet and Cash Flow Highlights

     Cash and cash equivalents, and marketable security investments were $303.9
million at March 31, 2007, as compared to $267.8 million at September 30, 2006.
Significant changes in cash and cash equivalents from September 30, 2006 include
cash provided by operations of $88.4 million, borrowings under the revolving
credit facility of $70.0 million, $61.8 million received from the exercise of
stock options and stock issued under an employee stock purchase plan, and $13.9
million received on the sale of the mortgage product line. Cash used during
fiscal 2007 includes $11.7 million related to purchases of property and
equipment and $196.4 million to repurchase common stock.

     Outlook

     The company expects revenues for third quarter fiscal 2007 to be
approximately $195.0 to $200.0 million and earnings per diluted share to be
approximately $0.33 to $0.38. The company expects revenues for fiscal 2007 to be
approximately $795.0 to $805.0 million and earnings per diluted share to be
approximately $1.55 to $1.65.

     Company to Host Conference Call

     The company will host a conference call today at 5:00 p.m. Eastern Time
(4:00 p.m. Central Time/2:00 p.m. Pacific Time) to discuss its second quarter
fiscal 2007 results, and outlook for the remainder of fiscal 2007. The call can
be accessed live on the Investor Relations section of the company's Web site at
www.fairisaac.com, and a replay will be available approximately two hours after
the completion of the call through May 28, 2007.

     About Fair Isaac Corporation

     Fair Isaac Corporation (NYSE:FIC) makes decisions smarter. The company's
solutions and technologies for Enterprise Decision Management give businesses
the power to automate more processes, and apply more intelligence to every
customer interaction. Through increasing the precision, consistency and agility
of their decisions, Fair Isaac clients worldwide increase sales, build customer
value, cut fraud losses, manage credit risk, reduce operational costs, meet
changing compliance demands and enter new markets more profitably. Founded in
1956, Fair Isaac powers hundreds of billions of decisions each year in financial
services, insurance, telecommunications, retail, consumer branded goods,
healthcare and the public sector. Fair Isaac also helps millions of individuals
manage their credit health through the www.myfico.com website. Visit Fair Isaac
online at www.fairisaac.com.

     Statement Concerning Forward-Looking Information

     Except for historical information contained herein, the statements
contained in this news release that relate to Fair Isaac or its business are
forward-looking statements within the meaning of the "safe harbor" provisions of
the Private Securities Litigation Reform Act of 1995. These forward-looking
statements are subject to risks and uncertainties that may cause actual results
to differ materially, including the success of the Company's Enterprise Decision
Management strategy, its ability to recruit and retain key technical and
managerial personnel, the maintenance of its existing relationships and ability
to create new relationships with customers and key alliance partners, its
ability to continue to develop new and enhanced products and services,
competition, regulatory changes applicable to the use of consumer credit and
other data, the possibility that the anticipated benefits of acquisitions,
including expected synergies, will not be realized and other risks described
from time to time in Fair Isaac's SEC reports, including its Annual Report on
Form 10-K for the year ended September 30, 2006, and its quarterly report on
Form 10-Q for the period ended December 31, 2006. If any of these risks or
uncertainties materialize, Fair Isaac's results could differ materially from its
expectations. Fair Isaac disclaims any intent or obligation to update these
forward-looking statements.

     Fair Isaac, FICO, myFICO, Blaze Advisor, Strategy Machine, FICO
Expansion(TM) score, and PreScore are trademarks or registered trademarks of
Fair Isaac Corporation in the United States and in other countries.


                        FAIR ISAAC CORPORATION
             CONDENSED CONSOLIDATED STATEMENTS OF INCOME
    For the Quarters and Six Months Ended March 31, 2007 and 2006
                (In thousands, except per share data)
                             (Unaudited)


                                  Quarter Ended     Six Months Ended
                                    March 31,           March 31,
                               ------------------- -------------------
                                 2007      2006      2007      2006
                               --------- --------- --------- ---------

Revenues                       $201,000  $208,157  $409,227  $410,947
                               --------- --------- --------- ---------

Operating expenses:
   Cost of revenues              74,172    73,144   144,741   140,189
   Research and development      17,781    21,694    35,500    44,424
   Selling, general and
    administrative               68,015    64,157   136,663   127,540
   Amortization of intangible
    assets                        6,352     6,260    12,742    12,523
   Restructuring and
    acquisition-related               -     2,184         -     1,510
   Gain on sale of product
    line assets                  (1,541)        -    (1,541)        -
                               --------- --------- --------- ---------
      Total operating expenses  164,779   167,439   328,105   326,186
                               --------- --------- --------- ---------
Operating income                 36,221    40,718    81,122    84,761
Other income, net                   602     1,495     1,037     2,340
                               --------- --------- --------- ---------
Income before income taxes       36,823    42,213    82,159    87,101
Provision for income taxes       15,385    15,240    29,496    31,671
                               --------- --------- --------- ---------
Net income                      $21,438   $26,973   $52,663   $55,430
                               ========= ========= ========= =========


Earnings per share:
   Basic                          $0.38     $0.41     $0.92     $0.86
                               ========= ========= ========= =========
   Diluted                        $0.37     $0.40     $0.89     $0.83
                               ========= ========= ========= =========


Shares used in computing
 earnings per share:
   Basic                         56,940    65,052    57,504    64,626
                               ========= ========= ========= =========
   Diluted                       58,659    66,834    59,328    66,521
                               ========= ========= ========= =========


                        FAIR ISAAC CORPORATION
                CONDENSED CONSOLIDATED BALANCE SHEETS
                March 31, 2007 and September 30, 2006
                            (In thousands)
                             (Unaudited)


                                             March 31,   September 30,
                                               2007          2006
                                           ------------- -------------

ASSETS:
Current assets:
    Cash and cash equivalents                  $122,447       $75,154
    Marketable securities                       150,449       152,141
    Receivables, net                            178,703       165,806
    Prepaid expenses and other current
     assets                                      22,376        20,209
                                           ------------- -------------
          Total current assets                  473,975       413,310

Marketable securities and investments            31,039        40,479
Property and equipment, net                      53,889        56,611
Goodwill and intangible assets, net             766,341       786,062
Other noncurrent assets                          22,048        24,743
                                           ------------- -------------
                                             $1,347,292    $1,321,205
                                           ============= =============

LIABILITIES AND STOCKHOLDERS' EQUITY:
Current liabilities:
   Accounts payable and other accrued
    liabilities                                 $54,721       $53,809
   Senior convertible notes                     400,000       400,000
   Revolving credit agreement                    70,000             -
   Accrued compensation and employee
    benefits                                     39,608        34,936
   Deferred revenue                              44,602        48,284
                                           ------------- -------------
       Total current liabilities                608,931       537,029

Other noncurrent liabilities                     13,356        14,148
                                           ------------- -------------
       Total liabilities                        622,287       551,177

Stockholders' equity                            725,005       770,028
                                           ------------- -------------
                                             $1,347,292    $1,321,205
                                           ============= =============


                        FAIR ISAAC CORPORATION
                         REVENUES BY SEGMENT
    For the Quarters and Six Months Ended March 31, 2007 and 2006
                            (In thousands)
                             (Unaudited)


                                  Quarter Ended     Six Months Ended
                                    March 31,           March 31,
                               ------------------- -------------------
                                 2007      2006      2007      2006
                               --------- --------- --------- ---------

Strategy machine solutions     $111,716  $118,852  $222,385  $230,838
Scoring solutions                42,335    41,768    87,253    87,924
Professional services            37,529    38,691    75,946    71,522
Analytic software tools           9,420     8,846    23,643    20,663
                               --------- --------- --------- ---------
     Total revenues            $201,000  $208,157  $409,227  $410,947
                               ========= ========= ========= =========


                        FAIR ISAAC CORPORATION
           CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
           For the Six Months Ended March 31, 2007 and 2006
                            (In thousands)
                             (Unaudited)


                                                    Six Months Ended
                                                        March 31,
                                                   -------------------
                                                     2007      2006
                                                   --------- ---------
Cash flows from operating activities:
Net income                                          $52,663   $55,430
Adjustments to reconcile net income to net cash
 provided by operating activities:
   Depreciation and amortization                     26,867    24,237
   Changes in operating assets and liabilities,
    net of disposition                              (17,097)    9,370
   Other, net                                        25,971    20,648
                                                   --------- ---------
      Net cash provided by operating activities      88,404   109,685
                                                   --------- ---------

Cash flows from investing activities:
Purchases of property and equipment                 (11,651)   (8,125)
Cash proceeds from disposition of product line
 assets                                              13,904         -
Net activity from marketable securities              12,737     3,339
Other, net                                             (213)      500
                                                   --------- ---------
      Net cash provided by (used in) investing
       activities                                    14,777    (4,286)
                                                   --------- ---------

Cash flows from financing activities:
Proceeds from revolving line of credit               70,000         -
Proceeds from issuances of common stock              61,838    45,577
Repurchases of common stock                        (196,443)  (12,766)
Other, net                                            7,387     2,708
                                                   --------- ---------
      Net cash provided by (used in) financing
       activities                                   (57,218)   35,519
                                                   --------- ---------

Effect of exchange rate changes on cash               1,330      (335)
                                                   --------- ---------

Increase in cash and cash equivalents                47,293   140,583
Cash and cash equivalents, beginning of period       75,154    82,880
                                                   --------- ---------
Cash and cash equivalents, end of period           $122,447  $223,463
                                                   ========= =========


     CONTACT: Fair Isaac Corporation
              Investors & Analysts:
              John D. Emerick, Jr., 800-213-5542
              or
              Marcy K. Oelhafen, 800-213-5542
              investorrelations@fairisaac.com