Exhibit (n)(8)

                             FORM OF RULE 18F-3 PLAN
                              JANUS INVESTMENT FUND

                               MONEY MARKET FUNDS

     This Rule 18f-3 Plan ("Plan") is adopted by Janus Investment Fund ("JIF")
with respect to Class D Shares and Class T Shares (each a "Class") of each
existing and future JIF money market fund (each a "Fund") offering such Classes
in accordance with the provisions of Rule 18f-3 under the Investment Company Act
of 1940, as amended (the "Act").

     1. Features of the Classes. Each Fund may issue its shares of beneficial
interest as follows: "Class D Shares" and "Class T Shares." Each Class shall
have exclusive voting rights on any matter submitted to shareholders that
relates solely to its service or distribution arrangement and each Class shall
have separate voting rights on any matter submitted to shareholders in which the
interests of one Class differ from the interests of any other Class.

          (a) Class D Shares. Class D Shares are sold at net asset value and are
not subject to an initial sales charge, a contingent deferred sales charge, or
fee payable pursuant to Rule 12b-1 but are subject to an administration fee and
minimum purchase and eligibility requirements as set forth in the Class D
Shares' prospectus.

          (b) Class T Shares. Class T Shares are sold at net asset value and are
not subject to an initial sales charge, a contingent deferred sales charge, or
fee payable pursuant to Rule 12b-1 but are subject to an administration fee and
the minimum purchase and eligibility requirements set forth in the Class T
Shares' prospectus.

     2. Administration Fee. Pursuant to and as described in Administration
Agreements between Janus Capital Management LLC ("JCM") and each Fund (each an
"Agreement"), JCM provides each Fund with certain services incidental to the
Fund's operations and business and, for providing those services, is paid a fee
by the Fund (an "Administration Fee"). A portion of each Administration Fee
relates to services performed by JCM (or a service provider retained by JCM)
that vary on a Class basis as identified in Section 2 of this Plan; those
services are referred to as Rule 18f-3 Plan Services. A portion of each
Administration Fee also relates to Class Expenses (as defined below) that are
assumed by JCM pursuant to Section 5 of each Agreement. The fees paid for
performing Rule 18f-3 Plan Services and assuming Class Expenses are referred to
as Rule 18f-3 Plan Fees. Rule 18f-3 Plan Fees and Class Expenses, as defined
below, relating to each Class are borne solely by the Class to which they relate
and within each Class are borne by each share pro rata on the basis of its net
asset value. JCM may use all or a portion of its Administration Fee to pay banks
and other financial institutions that provide Rule 18f-3 Plan Services to their
customers through trust departments, cash management programs, and similar
programs.

     3. Rule 18f-3 Plan Services. Rule 18f-3 Plan Services include the
following: provision of transfer agency and shareholder servicing functions for
each Class; responding to Shareholder inquiries; the receipt, aggregation and
processing of purchase and redemption orders; transmission of funds; preparation
and filing of documents necessary to obtain and maintain registration and
qualification of shares of each Class with the Securities and Exchange



Commission and state or territorial securities commissions; clerical,
recordkeeping and bookkeeping services related to a specific Class; preparation
and distribution of prospectuses, statements of additional information, reports
to shareholders and proxy statements relating to a specific Class; preparation
of materials for all meetings of the Trustees of JIF insofar as they relate to
matters concerning a specific Class; and all other services performed by JCM or
a service provider retained by JCM insofar as they relate to a specific Class.

     4. Class Expenses. Pursuant to Section 5 of each Agreement, JCM assumes
those Class Expenses (as defined below) of each Fund that are not borne by JIF
as provided in Section 6 of the Agreement. JCM is not separately reimbursed for
assuming those Class Expenses. Expenses incurred by JIF or assumed by JCM
pursuant to each Agreement that are chargeable to a specific Class ("Class
Expenses") include expenses (not including advisory or custodial fees or other
expenses related to the management of a Fund's assets) that are incurred in a
different amount by that Class or are in consideration of services provided to
that Class of a different kind or to a different degree than are provided to
another Class. Class Expenses include, in addition to expenses for Rule 18f-3
Plan Services: (i) expenses related to preparing and distributing materials such
as shareholder reports, prospectuses and proxy statements to current
shareholders of a specific Class; (ii) Blue Sky registration fees incurred with
respect to a specific Class; (iii) litigation or other legal expenses relating
to a specific Class; (iv) fees or expenses of the Trustees of JIF who are not
interested persons of JCM ("Independent Trustees"), and of counsel and
consultants to the Independent Trustees, incurred as a result of issues relating
to a specific Class; (v) auditing and consulting expenses relating to a specific
Class; and (vi) additional expenses incurred with respect to a specific Class as
identified and approved by the Trustees of JIF and the Independent Trustees.

     5. Rule 18f-3 Plan Fees. The Rule 18f-3 Plan Fees are up to 0.46% of the
average daily net assets of Class D Shares and up to 0.48% of the average daily
assets of Class T Shares. JCM, in its sole discretion, may waive any portion of
the Rule 18f-3 Plan Fees with respect to a Class of Shares of a Fund.

     6. Differences in Class Expenses. The differences in the Class Expenses
payable by each Class pursuant to this Plan are due to: (i) the differing levels
of services provided or procured by JIF to shareholders eligible to purchase
shares of each Class; and (ii) the differing levels of expenses expected to be
incurred with respect to each Class, due in part to the differing systems of
distribution of each Class.

     7. Exchange Privilege. The exchange privilege offered by each Fund provides
that shares of a Class may be exchanged for shares of the same Class of another
Fund of the Trust, for another class of shares of the same Fund, or as may
otherwise be provided in the Prospectus for such Funds provided that certain
eligibility requirements are met as outlined in the Funds' Prospectuses.

     8. Conversion Privilege. Conversion privileges may exist as approved by the
Trustees. Any such conversions will be: (i) preceded by written notice to the
shareholder; and (ii) effected on the basis of the relative net asset values of
the two classes without the imposition of any sales load, fee, or other charge.


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     9. Effective Date. This Plan was adopted as of September 17, 2009 pursuant
to determinations made by the Trustees of JIF, including a majority of the
Independent Trustees, that the multiple class structure and the allocation of
expenses as set forth in the Plan are in the best interests of each of the Class
D Shares and Class T Shares individually and each Fund and JIF as a whole. This
Plan shall become effective upon such date as the Trustees shall determine. This
Plan will continue in effect until terminated in accordance with Section 12.

     10. Independent Trustees. While the Plan is in effect, at least 75% of the
Trustees of JIF shall be Independent Trustees, and such Trustees shall select
and nominate any other Independent Trustees. Any person who acts as legal
counsel for the Independent Trustees shall be an "independent legal counsel" as
defined in the Act and the rules thereunder.

     11. Amendment. Material amendments to the Plan may be made with respect to
a Class at any time with the approval of the Trustees of JIF, including a
majority of the Independent Trustees, upon finding that the Plan as proposed to
be amended, including the allocation of expenses, is in the best interests of
each Class individually and each Fund and JIF as a whole.

     12. Termination. This Plan may be terminated by majority vote of the
Trustees without penalty at any time.

Adopted: September 17, 2009
         November 12, 2009


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