Janus Letterhead ] April 1, 2013 Ms. Heidi W. Hardin Janus Capital Management LLC 151 Detroit Street Denver, Colorado 80206 Dear Ms. Hardin:

Exhibit (h)(184)

[ Janus Letterhead ]

April 1, 2013

Xx. Xxxxx X. Xxxxxx
Xxxxx Capital Management LLC
000 Xxxxxxx Xxxxxx
Xxxxxx, Xxxxxxxx 00000

Dear Xx. Xxxxxx:

Attached is revised Schedule A to the Administration Agreement dated June 23, 2011, as may be further amended from time to time (the “Agreement”), between Janus Investment Fund (the “Trust”) and Janus Capital Management LLC (“JCM”). The purpose of the revision is to reflect the addition of Xxxxxxx International Value Fund effective April 1, 2013. Pursuant to Section 5 of the Agreement, the Trust hereby requests that JCM acknowledge its acceptance of the terms contained in the revised Schedule.

Please indicate your acceptance of the foregoing by executing two copies of this letter, returning one copy to the Trust and retaining one copy for your records.

JANUS INVESTMENT FUND
By:		/s/ Xxxxxxxxx Xxxxxxxxxx-Xxxxxx
Xxxxxxxxx Xxxxxxxxxx-Xxxxxx Vice President, Chief Legal Counsel and Secretary
JANUS CAPITAL MANAGEMENT LLC
By:		/s/ Xxxxx X. Xxxxxx
Xxxxx X. Xxxxxx
General Counsel and Senior Vice President

Revised effective as of April 1, 2013

SCHEDULE A

INTECH Global Dividend Fund
INTECH International Fund
INTECH U.S. Core Fund
INTECH U.S. Growth Fund
INTECH U.S. Value Fund
Janus Asia Equity Fund
Janus Balanced Fund
Janus Contrarian Fund
Janus Diversified Alternatives Fund
Janus Emerging Markets Fund
Janus Enterprise Fund
Janus Flexible Bond Fund
Janus Forty Fund
Janus Fund
Janus Global Bond Fund
Janus Global Life Sciences Fund
Janus Global Real Estate Fund
Janus Global Research Fund
Janus Global Select Fund
Janus Global Technology Fund
Janus Growth and Income Fund
Janus High-Yield Fund
Janus International Equity Fund
Janus Overseas Fund
Janus Protected Series — Global
Janus Protected Series — Growth
Janus Real Return Fund
Janus Research Fund
Janus Short-Term Bond Fund
Xxxxx Xxxxxx Fund
Janus Twenty Fund
Janus Venture Fund
Janus World Allocation Fund
Xxxxxxx Global Value Fund
Xxxxxxx International Value Fund
Xxxxxxx Large Cap Value Fund
Xxxxxxx Mid Cap Value Fund
Xxxxxxx Select Value Fund
Xxxxxxx Small Cap Value Fund
Xxxxxxx Value Plus Income Fund