APPENDIX I UNITED STATES OMB APPROVAL
SECURITIES AND EXCHANGE COMMISSION OMB Number 3235-045
Washington, D.C. 20549 Expires: August 31, 2000
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FORM 24F-2
Annual Notice of Securities Sold
Pursuant to Rule 24f-2
Read instructions at end of Form before preparing Form
1. Name and address of issuer: MML Series Investment Fund
1295 State Street
Springfield, MA 01111-0001
2. 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]
3. Investment Company Act File Number: 811-2224
Securities Act File Number: 2-39334
4(a). Last day of fiscal year for which this Form is filed: December 31, 1998
4(b). [ ] Check box if this form is being filed late (i.e. more than 90
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.
4(c). [ ] Check box if this is the last time the issuer will be filing
this Form.
5. Calculation of registration fee:
(i) Aggregate sale price of securities sold during the
fiscal year pursuant to section 24f: $12,425,970.40
(ii) Aggregate price of shares redeemed or
repurchased during the fiscal year: $18,122,043.31
(iii) Aggregate price of shares 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: $ 2,601,560.92
(iv) Total available redemption credits
[add Items 5(ii) and 5(iii)]: -$20,723,604.23
(v) Net sales-if Item 5(i) is greater than Item 5(iv)
[Subtract Item (iv) from Item 5(i)]: $ 0
(vi) Redemption credits available for use in $(8,297,633.83)
future years --if Item 5(i) is less than
Item 5(iv)[subtract Item 5(iv) from Item 5(i)]:
(vii) Multiplier for determining registration fee
(See Instruction C.9): x .000278
(viii) Registration fee due [multiply Item 5(v)
by Item 5(vii)] (enter "0" if no fee is due): =$ 0
6. Prepaid Shares
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: .
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 the number here: .
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
8. Total of the amount of the registration fee due plus any interest due
[line 5(viii) plus line 7]:
=$ 0
9. Date the registration fee and any interest payment was sent to the
Commission's lockbox depository:
Method of Delivery:
[ ] Wire Transfer
[ ] Mail or other means
SIGNATURE
This report has been signed below by the following person on behalf of
the issuer and in the capacity and on the date indicated.
By (Signature and Title)* /s/Mark B. Ackerman
Mark B. Ackerman
Treasurer
Date March 16, 1999
* Please print the name and title of the signing officer below the signature.
