	UNITED STATES	OMB APPROVAL
	SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549	OMB Number: 3235-0058 Expires: April 30, 2012 Estimated average burden hours per response . . . . . . . . 2.50
	FORM 12b-25	SEC FILE NUMBER 001-31972
	NOTIFICATION OF LATE FILING	CUSIP NUMBER 879604106

(Check one):

Form 10-K

Form 20-F

Form 11-K

Form 10-Q

Form 10-D

Form N-SAR

Form N-CSR

For Period Ended: March 31, 2012

Transition Report on Form 10-K

Transition Report on Form 20-F

Transition Report on Form 11-K

Transition Report on Form 10-Q

Transition Report on Form N-SAR

For the Transition Period Ended: __________________________

Read Instruction (on back page) Before Preparing Form. Please Print or Type.

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

PART I — REGISTRANT INFORMATION

Telkonet, Inc.

Full Name of Registrant

Former Name if Applicable

10200 Innovation Drive, Suite 300

Address of Principal Executive Office (Street and Number)

Milwaukee, Wisconsin 53226

City, State and Zip Code

PART II — RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

(a)

The reason described in reasonable detail in Part III of this form could not be eliminated without unreasonable

effort or expense;

(b)

The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F, Form 11-K, Form N-SAR or Form N-CSR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q or subject distribution report on Form 10-D, or portion thereof, will be filed on or before the fifth calendar day following the prescribed due date; and

(c)

The accountant’s statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III — NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

Telkonet, Inc. (the “Company”) was unable to finalize the terms of the renewal of its engagement with its independent registered public accounting firm by May 15, 2012. As a result, the Company was unable to obtain a final review of its quarterly report on Form 10-Q for the quarter ended March 31, 2012 in time to file it by the prescribed deadline without unreasonable effort and expense. The delay in finalizing the terms of the engagement renewal does not relate to any disagreement with the Company’s independent registered public accounting firm on any matter of accounting principles or practices, financial statement disclosure or similar matters.

The Company is working to finalize the terms of the engagement renewal and expects to file the Form 10-Q by no later than the fifth calendar day following the prescribed deadline, or May 21, 2012; however the Company can provide no assurance that it will be able to file the Form 10-Q within such time period.

SEC 1344 (05-06)

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 control number.

(Attach extra Sheets if Needed)

PART IV — OTHER INFORMATION

(1)	Name and telephone number of person to contact in regard to this notification Richard E. Mushrush 414 302-2260 (Name) (Area Code) (Telephone Number)
(2)	Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s).
		Yes £ No S

(3)	Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof?
		Yes ý No ¨

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

As described above the Company was unable to finalize the terms of the renewal of its engagement with its independent registered public accounting firm by May 15, 2012. Net revenues for the quarter ended March 31, 2012 are expected to be approximately $1.9 million, a decrease of 22% over the same period prior year. Gross profit is expected to be approximately $1 million with operating expenses of approximately $1.7 million. The Company is expected to report a net loss of approximately $700,000.

Telkonet, Inc.
(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date: May 16, 2012	By /s/ Richard E. Mushrush
	Richard E. Mushrush
	Controller and Acting Chief Financial Officer

INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative’s authority to sign on behalf of the registrant shall be filed with the form.

ATTENTION

Intentional misstatements or omissions of fact constitute Federal Criminal Violations (See 18 U.S.C. 1001).