MASSACHUSETTS INVESTORS TRUST, 497J, 2000-05-01

MASSACHUSETTS INVESTORS TRUST
497J, 2000-05-01

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                    MASSACHUSETTS FINANCIAL SERVICES COMPANY
             500 BOYLSTON STREET, BOSTON, MASSACHUSETTS 02116-3741
                                  617-954-5000




                                        May 1, 2000

VIA EDGAR

Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, NW
Washington, DC  20549

         Re:   Massachusetts  Investors  Trust (the "Trust") (File Nos.  2-11401
               and 811-203

Ladies and Gentlemen:

         Pursuant to Rule 497(j) under the  Securities  Act of 1933, as amended,
please  accept  this  letter on behalf  of the Trust as  certification  that the
Prospectus and Statement of Additional  Information  for the Trust do not differ
from those contained in Post-Effective Amendment No. 78 (the "Amendment") to the
Trust's   Registration   Statement  on  Form  N-1A.   The  Amendment  was  filed
electronically on April 28, 2000.

         Please call the  undersigned or Shauna Fahey at (617) 954-5800 or (800)
343-2829 with any questions you may have.

                                        Very truly yours,



                                        MICHAEL H. WHITAKER
                                        Michael H. Whitaker
                                        Counsel

MHW/bjn