Annual Notice of Securities Sold
                          Pursuant to Rule 24F-2


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1.   Name and address of issuer: Cash Assets Trust
     380 Madison Avenue, Suite 2300, New York, NY 1001
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2.   The name of each series or class of securities for which this
     Form is filed (if the Form is being filed for all series and
     classes of securities of the issuer, check the box but do not
     list series or classes: [X]
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3.   Investment Company Act File Number:  811-4066
     Securities Act File Number: 2-92164
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4(a) Last day of fiscal year for which this Form is filed:
     March 31, 2008
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4(b) [ ] Check box if this Form is being filed late (i.e., more than
         90 calendar days after the end of the issuer's fiscal year).
         (See Instruction A.2)

     Note: If the Form is being filed late, interest must be paid on
           the registration fee due
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4(c) [ ] Check box if this is the last time the issuer will be
         filing this Form
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5.  Calculation of registration fee:
   (i)    Aggregate sale price of securities
          sold during the fiscal year
          pursuant to section 24(f):                  $5,832,191,812
                                                      --------------
   (ii)   Aggregate price of securities
          redeemed or repurchased during
          the fiscal year:                    $5,640,879,788
                                              --------------
    (iii) Aggregate price of securities
          redeemed or repurchased during any
          prior fiscal year ending no
          earlier than October 11, 1995 that
          were not previously used to reduce
          registration fees payable to the
          Commission:                        $           0
                                              ------------
    (iv)  Total available redemption credits
          [add Items 5(ii) and 5(iii)]:            - $5,640,879,788
                                                     --------------
    (v)   Net sales - if Item 5(i) is
          greater than Item 5(iv) [subtract
          Item 5(iv) from Item 5(i)]:                $  191,312,024
                                                     --------------

    (vi)  Redemption credits available for
           use in future years - If item 5(i)
           is less than Item 5(iv) (subtract
           Item 5(iv) from Item 5(i)):       $(0)
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    (vii) Multiplier for determining
          registration fee (See Instruction
          C.9):                                      X  .0000393
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    (viii)Registration fee due [multiply
          Item 5(v) by Item 5(vii)] (enter
          "0" if no fee is due):                   =   $7,518.56
                                                    --------------

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6.  Prepaid Share

 If the response to item 5(i) was determined by deducting an amount
 of securities that were registered under the Securities Act of 1933
 pursuant to rule 24e-2 as in effect before October 11, 1997, then
 report the amount of securities (number of shares
 or other units) deducted here:                           $ 0
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 If there is a number of shares or other units that were registered
 pursuant to rule 24e-2 remaining unsold at the end of the fiscal year
 for which this form is filed that are available for use by the issuer
 in future fiscal years, then state that number here:      $ 0
                                                            ----
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7.  Interest due - if this Form is being filed
    more than 90 days after the end of the
    issuer's fiscal year (see Instruction D):            + $ 0
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8.  Total of the amount of the registration fee
    due plus any interest due [line 5(viii)
    plus line 7]:                                   = $ 7,518.56
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9.  Date the registration fee and any interest payment was sent to the
    Commission's lockbox depository:  June 30, 20008

          Method of Delivery

                    [x]  Wire Transfer
                    [ ]  Mail or other means
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                                SIGNATURES

This report has been signed below by the following persons on behalf of
 the issuer and in the capacities and on the dates indicated.

                              /s/ Joseph P. DiMaggio
                              ------------------------------------
                             Chief Financial Officer and Treasurer
Date:  June 30, 2008