Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0104
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
  WCAS Capital Partners IV, L.P.
 2. Date of Event Requiring Statement (Month/Day/Year)
04/10/2014		 3. Issuer Name and Ticker or Trading Symbol
Paycom Software, Inc. [PAYC]
(Last)
(First)
(Middle)
C/O WELSH, CARSON, ANDERSON & STOWE, 320 PARK AVENUE, SUITE 2500		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

NEW YORK, NY 10022		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 323,307
D (1) (2) (3)
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
WCAS Capital Partners IV, L.P.
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    
MACKESY D SCOTT
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    
TRAYNOR SEAN
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    
RATHER JONATHAN M
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    
Scully Thomas
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    
Lee Eric J.
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    
Donovan Michael
C/O WELSH, CARSON, ANDERSON AND STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    
REGAN BRIAN THOMAS
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, NEW YORK, SUITE 2500
NY 10022		     X    
Ecock Anthony F
C/O WELSH, CARSON, ANDERSON & STOWE
320 PARK AVENUE, SUITE 2500
NEW YORK, NY 10022		     X    

Signatures

/s/ David Mintz, Attorney-in-Fact 04/11/2014
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The securities reported as directly beneficially owned by the designated Reporting Person may be deemed to be indirectly beneficially owned by each of the Reporting Owners listed below, each of whom is a managing member of the sole general partner of the designated Reporting Person. Pursuant to Instruction 5(b)(iv) of Form 3, each such individual has elected to report as indirectly beneficially owned the entire number of securities owned by the designated Reporting Person, however each of them disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his pecuniary interest therein and/or that are not actually distributed to him.
(2) Each Reporting Owner listed below also indirectly beneficially owns 30,425,136 shares of Common Stock held by Welsh, Carson, Anderson & Stowe X, L.P. Such individuals are managing members of the sole general partner of Welsh, Carson, Anderson & Stowe X, L.P. Pursuant to Instruction 5(b)(iv) of Form 3, each such individual has elected to report as indirectly beneficially owned the entire number of securities owned by such entity, however each of them disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his pecuniary interest therein and/or that are not actually distributed to him.
(3) Jonathan M. Rather also indirectly beneficially owns 163,337 shares of Common Stock held by WCAS Management Corp, of which he is the sole controlling shareholder. Pursuant to Instruction 5(b)(iv) of Form 3, Mr. Rather has elected to report as indirectly beneficially owned the entire number of securities owned by such entity, however he disclaims beneficial ownership of any securities, and any proceeds thereof, that exceed his pecuniary interest therein and/or that are not actually distributed to him.
 
Remarks:
Part 2 of 2

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.