UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                                                      SEC FILE NUMBER 000-50641
                
                                                       CUSIP NUMBER 74268T 10 8
                                   FORM 12B-25

                           NOTIFICATION OF LATE FILING

(Check One)   [ ] Form 10-K     [ ] Form 20-F     [ ] Form 11-K   [X] Form 10-Q
              [ ] Form N-SAR
                  For Period Ended:         June 30, 2005               
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                  [ ]   Transition Report on Form 10-K
                  [ ]   Transition Report on Form 20-F
                  [ ]   Transition Report on Form 11-K
                  [ ]   Transition Report on Form 10-Q
                  [ ]   Transition Report on Form N-SAR
                  For the Transition Period Ended: __________________________

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  Read Instruction (on back page) Before Preparing Form. Please Print or Type.
    NOTHING IN THIS FORM SHALL BE CONSTRUED TO IMPLY THAT THE COMMISSION HAS
                   VERIFIED ANY INFORMATION CONTAINED HEREIN.
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If the notification relates to a portion of the filing checked above, identify
the Item(s) to which the notification relates: N/A

PART I -- REGISTRANT INFORMATION

PROCENTURY CORPORATION                                                         
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Full Name of Registrant

N/A                                                                            
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Former Name if Applicable

465 CLEVELAND AVENUE                                                           
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Address of Principal Executive Office (Street and Number)

WESTERVILLE, OHIO 43082                                                        
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City, State and Zip Code

PART II -- RULES 12B-25(B) AND (C)

If the subject report could not be filed without unreasonable effort or expense
and the registrant seeks relief pursuant to Rule 12b-25(b), the following should
be completed. (Check box if appropriate)

         (a)      The reasons described in reasonable detail in Part III of this
                  form could not be eliminated without unreasonable effort or
                  expense;

|X|      (b)      The subject annual report, semi-annual report, transition
                  report on Form 10-K, Form 20-F, 11-K, Form N-SAR, or portion
                  thereof, will be filed on or before the fifteenth calendar day
                  following the prescribed due date; or the subject quarterly
                  report of transition report on Form 10-Q, or portion thereof
                  will be filed on or before the fifth calendar day following
                  the prescribed due date; and

         (c)      The accountant's statement or other exhibit required by Rule
                  12b-25(c) has been attached if applicable.



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PART III -- NARRATIVE

State below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q,
10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be
filed within the prescribed time period.

The Company's independent registered public accounting firm has not yet had an
opportunity to complete its review of the financial statements to be included in
the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 2005
because the Company has not completed compiling certain information for the
accounting firm. The Company does not expect that the Form 10-Q will contain
any material changes from the information set forth in its press release dated
August 9, 2005 and furnished to the Commission on a Form 8-K dated August 10,
2005.

PART IV -- OTHER INFORMATION

(1)      Name and telephone number of person to contact in regard to this 
         notification

         CHARLES D. HAMM, JR.          (614) 895-2000             
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          (Name)                    (Area Code)  (Telephone Number)

(2)      Have all other periodic reports required under Section 13 or 15(d) of
         the Securities Exchange Act of 1934 or Section 30 of the Investment
         Company Act of 1940 during the preceding 12 months or for such shorter
         period that the registrant was required to file such reports been
         filed? If answer is no identify report(s). [X] Yes    [ ] No

(3)      Is it anticipated that any significant change in results of operations
         from the corresponding period for the last fiscal year will be
         reflected by the earnings statements to be included in the subject
         report or portion thereof? [ ] Yes    [X] No

         If so, attach an explanation of the anticipated change, both
         narratively and quantitatively, and, if appropriate, state the reasons
         why a reasonable estimate of the results cannot be made:




                             PROCENTURY CORPORATION
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                  (Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned 
hereunto duly authorized.


Date:   August 15, 2005                By: /s/ Charles D. Hamm, Jr. 
        -------------------                -----------------------------------
                                           Charles D. Hamm, Jr.
                                           Chief Financial Officer and Treasurer




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