e424b2
 

             
Pricing Supplement Dated
  4/3/2006   Filed pursuant to x Rule 424(b)(2)    o Rule 424(b)(5)
(To Prospectus dated February 16, 2006, and
  Registration Statement Nos.   333-129763 and
Prospectus Supplement dated February 16, 2006)
      333-129763-01
 
           
      CUSIP: 74254PKW1

(PRINCIPAL FINANCIAL GROUP LOGO)

Principal Life Insurance Company
Principal® Life CoreNotes® (Callable) (That are also Asset-Backed Securities) Issued Through and Obligations of
Principal Life Income Fundings Trust 2006-15 (the “Trust” and “Issuing Entity”)

The description of this pricing supplement of the particular terms of the Principal® Life CoreNotes® offered hereby, and the Funding Agreement (specified below) issued by Principal Life Insurance Company (“Principal Life”) to the Trust, the payment obligations of which are fully and unconditionally guaranteed by the Guarantee (specified below) issued by Principal Financial Group, Inc. to the Trust, supplements the description of the general terms and provisions of the notes, the funding agreements and the guarantees set forth in the accompanying prospectus and prospectus supplement, to which reference is hereby made.

1. The Notes


                     
Principal Amount:
    TBD     Purchasing Agent Discount:   1.200%    
 
                   
Issue Price:
    100.0%     Original Issue Date:   4/12/2006
 
                   
Net Proceeds to the Trust:
    TBD     Stated Maturity Date:    
 
              4/15/12013    

                     
Interest Payment Dates:
  The 15th day of every sixth month commencing on 10/15/2006
 
                   
Initial Interest Payment Date:
  10/15/2006
 
                   
Regular Record Date:
  15 calendar days prior to the Interest Payment Date
 
                   
Type of Interest Rate:
  x Fixed Rate   o Floating Rate    
 
                   
Interest Rate:
  5.55%                
 
                   
Discount Note:
  o Yes   x No.    
 
                   
Terms of Survivor’s Option:
   
Annual Put Limitation:
      x $2,000,000 or 2%; or
      o $                   or  %
Individual Put Limitation:
      x $250,000; or
      o $                   
Trust Put Limitation:
      x 2%; or
$                   
 
           
Redemption Provisions:
  x Yes   o No.   If, Yes,
Initial Redemption Date:
  4/15/2007
Redemption:
  x In whole only and not in part    
  o May be in whole or in part    
Additional Other Terms:
  Any redemption date will be an Interest Payment Date falling on or after the Initial Redemption Date
 
           
Repayment:
  o Yes   x No.    
 
           
Authorized Denominations:
  $1,000  


“Principal®” is a registered service mark of Principal Financial Services, Inc. and is used under license.
“CoreNotes®” is a registered service mark of Merrill Lynch & Co.

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Ratings:

     The Notes issued under the Program are rated AA by Standard & Poor’s (“S&P”).
     Principal Life expects the Notes to be rated Aa2 by Moody’s Investors Service, Inc. (“Moody’s”).
             
Purchasing Agent(s) Purchasing Notes as Principal:
  x Yes   o No.   If, Yes,
         
Purchasing Agent(s)
  Principal Amount
Merrill Lynch
    TBD  
 
       
 
 
 
Total:
    TBD  
 
 
 
                 
State of Organization of the Trust:
New York            
 
               
Additional/Other Terms:
None            
 
               
2. The Funding Agreement
             
 
               
Funding Agreement Issuer:
Principal Life Insurance Company
 
               
Funding Agreement No.:
6-12934            
 
               
Deposit:
  TBD        
 
               
Net Deposit:
TBD        
 
               
Effective Date:
4/12/2006        
 
               
Stated Maturity Date:
4/15/2013        
 
               
Interest Payment Dates:
  The 15th day of every sixth month commencing on 10/15/2006
 
               
Initial Interest Payment Date:
  10/15/2006
 
               
Type of Interest Rate:
  x Fixed Rate   o Floating Rate    
 
               
Interest Rate:
  5.55%            
 
               
Discount Funding Agreement:
  o Yes   x No.    
 
           
Terms of Survivor’s Option:
           
Annual Put Limitation:
      x $2,000,000 or 2%; or
      o $                   or  %
Individual Put Limitation:
      x $250,000; or
      o $                   
Trust Put Limitation:
      x 2%; or
$                   
 
           
Redemption:
  x Yes   o No.   If, Yes,
Initial Redemption Date:
  4/15/2007
Redemption:
  x In whole only and not in part    
  o May be in whole or in part    
Additional Other Terms:
  Any redemption date will be an Interest Payment Date falling on or after the Initial Redemption Date
 
           
Repayment:
  o Yes   x No.    

Ratings:

The Funding Agreement issued under the Program is rated AA by S&P.
Principal Life expects the Funding Agreement to be rated Aa2 by Moody’s.
     
Additional/Other Terms:
None  
 
   
3. The Guarantee
   
 
   
Guarantee Issuer:
Principal Financial Group, Inc.
 
   
Effective Date:
4/12/2006
 
   
Additional/Other Terms:
None

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