UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 13F

                               FORM 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: March 31, 2010

Check here if Amendment [ ]; Amendment Number: ________

This Amendment (Check only one): [ ] is a restatement.
                                 [ ] adds new holdings entries.

Institutional Investment Manager:

Name:    United Fire & Casualty Company
Address: 118 Second Avenue SE
Cedar    Rapids IA 52401

Form 13F File Number: 28-6427

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of the Reporting Manager:

Name:  Kevin W. Helbing
Title: Controller
Phone: 319 286-2533

Signature, Place and Date of Signing:


/s/ Kevin W. Helbing                       Cedar Rapids, IA         4/30/2010
-------------------------------------
Kevin W. Helbing

Report Type (Check only one.):

[X]  13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager
     are reported in this report.)

[ ]  13F NOTICE. (Check here if no holdings reported are in this report, and all
     holdings are reported by other reporting manager(s).)

[ ]  13F COMBINATION REPORT. (Check here if a portion of the holdings for this
     reporting manager are reported in this report and a portion are reported by
     other reporting manager(s).)



FORM 13F SUMMARY PAGE

Report Summary:

Number of Other Included Managers:                  0

Form 13F Information Table Entry Total:            59

Form 13F Information Table Value Total:      $141,944
                                        (in thousands)

List of Other Included Managers: NONE



FORM 13F INFORMATION TABLE



                                                                                                           VOTING AUTHORITY
                                TITLE OF               VALUE    SHARES/  SH/  PUT/  INVSTMNT    OTHER   ---------------------
        NAME OF ISSUER            CLASS     CUSIP    (x $1000)  PRN AMT  PRN  CALL   DSCRETN  MANAGERS    SOLE   SHARED  NONE
------------------------------  --------  ---------  ---------  -------  ---  ----  --------  --------  -------  ------  ----
                                                                                        
AT&T Inc                         Common   00206R102      2,588  100,160   SH          Sole              100,160
Abbott Laboratories              Common   002824100     10,799  205,000   SH          Sole              205,000
Agilysys Inc                     Common   00847J105      2,359  211,187   SH          Sole              211,187
Alliant Energy Corporation       Common   018802108      4,064  122,200   SH          Sole              122,200
American Strategic Inc Port II   Common   030099105        262   25,420   SH          Sole               25,420
BCE Inc                          Common   05534B760        435   14,823   SH          Sole               14,823
BRE Properties Inc               Common   05564E106        644   18,000   SH          Sole               18,000
Bank of America Corporation      Common   060505104      2,499  140,000   SH          Sole              140,000
Bemis Company Inc                Common   081437105        902   31,400   SH          Sole               31,400
Boeing Company                   Common   097023105      5,446   75,000   SH          Sole               75,000
CIT Group Inc                    Common   125581801      2,145   55,065   SH          Sole               55,065
Cincinnati Financial Corp        Common   172062101      9,259  320,276   SH          Sole              320,276
ConocoPhillips                   Common   20825C104        515   10,059   SH          Sole               10,059
Cummins Inc                      Common   231021106      4,843   78,180   SH          Sole               78,180
Dean Foods Company               Common   242370104        126    8,000   SH          Sole                8,000
Deere & Company                  Common   244199105      1,189   20,000   SH          Sole               20,000
Del Monte Foods Co               Common   24522P103        293   20,097   SH          Sole               20,097
Dow Chemical Company             Common   260543103      5,027  170,000   SH          Sole              170,000
Duke Energy Corporation          Common   26441C105      2,418  148,192   SH          Sole              148,192
Emerson Electric Co              Common   291011104        634   12,600   SH          Sole               12,600
Exxon Mobil Corporation          Common   30231G102      2,679   40,000   SH          Sole               40,000
Federal-Mogul Corporation        Common   313549404        706   38,457   SH          Sole               38,457
Fidelity National Information    Common   31620M106        229    9,758   SH          Sole                9,758
Fidelity NationalFinancial Inc   Common   31620R105        329   22,201   SH          Sole               22,201
Arthur J Gallagher & Co          Common   363576109        253   10,321   SH          Sole               10,321
General Electric Company         Common   369604103      5,005  275,000   SH          Sole              275,000
H J Heinz Company                Common   423074103      2,052   45,000   SH          Sole               45,000
Honeywell International Inc      Common   438516106      1,584   35,000   SH          Sole               35,000
Hospira Inc                      Common   441060100        906   16,000   SH          Sole               16,000
Intel Corporation                Common   458140100        892   40,000   SH          Sole               40,000
JPMorgan Chase & Co              Common   46625H100      2,584   57,736   SH          Sole               57,736
Johnson & Johnson                Common   478160104      1,956   30,000   SH          Sole               30,000
Medtronic Inc                    Common   585055106      1,126   25,000   SH          Sole               25,000
Merck & Co Inc                   Common   58933Y105        215    5,767   SH          Sole                5,767
Mirant Corporation               Common   60467R100        308   28,342   SH          Sole               28,342
Newell Rubbermaid Inc            Common   651229106        696   45,766   SH          Sole               45,766
Nicor Inc                        Common   654086107      1,677   40,000   SH          Sole               40,000
Old Republic International Cor   Common   680223104      3,229  254,690   SH          Sole              254,690
Owens Corning Inc                Common   690742101      2,560  100,644   SH          Sole              100,644
Penwest Pharmaceuticals Co.      Common   709754105        104   30,000   SH          Sole               30,000
PepsiCo Inc                      Common   713448108      1,323   20,000   SH          Sole               20,000
Pfizer Inc                       Common   717081103        686   40,000   SH          Sole               40,000
Piper Jaffray Cos                Common   724078100        336    8,329   SH          Sole                8,329
Procter & Gamble Company         Common   742718109      4,809   76,000   SH          Sole               76,000
Progress Energy Inc              Common   743263105        753   19,131   SH          Sole               19,131
QCR Holdings Inc                 Common   74727A104        740   83,181   SH          Sole               83,181
Royal Dutch Shell ADR            Common   780259206      2,314   40,000   SH          Sole               40,000
Schlumberger Limited             Common   806857108      1,904   30,000   SH          Sole               30,000
Spectra Energy Corporation       Common   847560109      2,120   94,096   SH          Sole               94,096
Terra Industries Inc.            Common   880915103      1,463   31,969   SH          Sole               31,969
Treehouse Foods Inc              Common   89469A104        423    9,652   SH          Sole                9,652
U S Bancorp                      Common   902973304     18,576  717,784   SH          Sole              717,784
Vectren Corporation              Common   92240G101        659   26,658   SH          Sole               26,658
Verizon Communications Inc       Common   92343V104      1,737   55,997   SH          Sole               55,997
Wells Fargo & Company            Common   949746101      7,783  250,086   SH          Sole              250,086
Windstream Corporation           Common   97381W104        141   12,942   SH          Sole               12,942
Wintrust Financial Corporation   Common   97650W108      8,578  230,523   SH          Sole              230,523
Xcel Energy, Inc.                Common   98389B100      1,908   90,000   SH          Sole               90,000
Montpelier Re Holdings Ltd       Common   G62185106        154    9,189   SH          Sole                9,189
Report Summary                    Data Records              59  141,944   0 other managers on whose behalf report is filed