FORM OF SALE PARTICIPATION AGREEMENT

Exhibit 10.8

FORM OF SALE PARTICIPATION AGREEMENT

[date]                    

To: The Person whose name is set forth on the signature page hereof

Dear Sir or Madam:

You have entered into a Management Stockholder’s Agreement, dated as of the date hereof, among New Omaha Holdings Corporation, a Delaware corporation (the “Company”), New Omaha Holdings L.P., a Delaware limited partnership and the parent entity of the Company (“Parent”), and you (the “Stockholder’s Agreement”) relating to Rollover Stock (as defined in the Stockholder’s Agreement), the purchase by you of Purchased Stock (as defined in the Stockholder’s Agreement) and the grant by the Company to you of options (together with any other options granted to you, “Options”) to purchase shares of common stock, par value $0.01 per share, of the Company (“Common Stock”, which includes Purchased Stock). Parent hereby agrees with you as follows, effective as of the Closing Date (as defined in the Stockholder’s Agreement):

1. (a) In the event that at any time on or after the Closing Date, (i) Parent, (ii) any of the Investors (as defined in the Stockholder’s Agreement) or (ii) any of their respective Affiliates (as defined in the Stockholder’s Agreement) (collectively, the “Selling Entities”) proposes to sell, directly or indirectly, for cash or any other consideration any shares of Common Stock owned by any such Selling Entity, in any transaction other than (x) a Public Offering (as defined in the Stockholder’s Agreement), (y) a sale, directly or indirectly, to an Affiliate of Parent or an Investor, or (z) an Initial Syndication (as such term is hereinafter defined), then, unless Parent is entitled to and does exercise the drag-along rights pursuant to Paragraph 7 below and the Drag Transaction is consummated, Parent will notify you or your Management Stockholder’s Estate or Management Stockholder’s Trust (as such terms are defined in the Stockholder’s Agreement, and collectively with you, the “Management Stockholder Entities”), as the case may be, in writing (a “Notice”) of such proposed sale (a “Proposed Sale”) specifying the principal terms and conditions of the Proposed Sale (the “Material Terms”) including (A) the amount of Common Stock to be included in the Proposed Sale, (B) the percentage of the outstanding Common Stock at the time the Notice is given that is represented by the number of shares to be included in the Proposed Sale, (C) the price per share of Common Stock subject to the Proposed Sale, including a description of any pricing formulae and of any non-cash consideration sufficiently detailed to permit valuation thereof, (D) the Tag Along Sale Percentage of Parent and (E) the name and address of the Person (as defined in the Stockholder’s Agreement) to whom the offered Common Stock is proposed to be issued. For purposes of this Paragraph 1, the term “Initial Syndication” shall mean a sale to any unaffiliated person or group of persons in connection with the initial syndication of the Selling Entities’ investment in the Common Stock, which sale(s) occur at any time(s) within the first six (6) months following the

Closing Date (as such term is defined in the Stockholder’s Agreement) at a per share sale price that does not exceed 110% of the Base Price (as such term is defined in the Stockholder’s Agreement).

(b) If, within 10 business days after the delivery of Notice under Section 1(a), Parent receives from a Management Stockholder Entity a written request (a “Request”) to include Common Stock held by the Management Stockholder Entity in the Proposed Sale (which Request shall be irrevocable except (a) as set forth in clauses (c) and (d) of this Section 1 below or (b) if otherwise mutually agreed to in writing by the Management Stockholder Entity and Parent), the Common Stock held by you plus all shares of Common Stock which you are then entitled to acquire under any unexercised portion of Options, to the extent such Option is then exercisable or would become exercisable as a result of the consummation of the Proposed Sale (not in any event to exceed the Tag Along Sale Percentage multiplied by the total number of shares of Common Stock held by the Management Stockholder Entities in the aggregate, including all shares of Common Stock which you are then entitled to acquire under any unexercised portion of Options, to the extent such Option is then exercisable or would become exercisable as a result of the consummation of the Proposed Sale) will be so included as provided herein. Promptly after the execution of the Sale Agreement, Parent will furnish each Management Stockholder Entity with a copy of the Sale Agreement, if any. For purposes of this Agreement, the “Tag Along Sale Percentage” shall mean the fraction, expressed as a percentage, determined by dividing the number of shares of Common Stock to be purchased from the Selling Entity by the total number of shares of Common Stock owned directly or indirectly by the Selling Entities.

(c) Notwithstanding anything to the contrary contained in this Agreement, if any of the economic terms of the Proposed Sale change adversely, including without limitation if the per share price will be less than the per share price disclosed in the Notice, or any of the other principal terms or conditions will be materially less favorable to the selling Management Stockholder Entities than those described in the Notice, Parent will provide written notice thereof to each Management Stockholder Entity who has made a Request and each such Management Stockholder Entity will then be given an opportunity to withdraw the offer contained in such holder’s Request (by providing prompt (and in any event within five (5) business days; provided that, notwithstanding the foregoing, if the proposed closing with respect to the Proposed Sale is to occur within five (5) business days or less, no later than three (3) business days prior to such closing) written notice of such withdrawal to Parent), whereupon such withdrawing Management Stockholder Entity will be released from all obligations thereunder.

(d) If the Selling Entity does not complete the Proposed Sale by the end of the 120th day following the date of the effectiveness of the Notice, each selling Management Stockholder Entity may elect to be released from all obligations under the applicable Request by notifying Parent in writing of its desire to so withdraw. Upon receipt of that withdrawal notice, the Notice of the relevant Management Stockholder Entity shall be null and void, and it will then be necessary for a separate Notice to be furnished, and the terms and provisions of clauses (a) and (b) of this Section 1 separately complied with, in order to consummate such Proposed Sale pursuant to this Section 1, unless the failure to complete such proposed sale resulted from any failure by any selling Management Stockholder Entity to comply with the terms of this Section 1.

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2. (a) The number of shares of Common Stock that you will be permitted to include in a Proposed Sale pursuant to a Request will be the lesser of (A) the number of shares of Common Stock that you have offered to sell in the Proposed Sale as set forth in the Request and (B) the number of shares of Common Stock determined by multiplying (i) the number of shares of Common Stock to be included in the Proposed Sale by (ii) a fraction the numerator of which is the number of shares of Common Stock owned by you plus all shares of Common Stock which you are then entitled to acquire under any unexercised portion of Options, to the extent such Option is then exercisable or would become exercisable as a result of the consummation of the Proposed Sale and the denominator of which is the total number of shares of Common Stock owned by the Management Stockholder Entities and all other Persons participating in such sale as tag-along sellers pursuant to Other Management Stockholder Agreements (as defined in the Stockholder’s Agreement) or other agreements (all such participants, the “Tag Along Sellers”) plus all shares of Common Stock which you and such Persons are then entitled to acquire under any unexercised portion of Options, to the extent such Options are then exercisable or would become exercisable as a result of the consummation of the Proposed Sale, plus all shares of Common Stock owned by the Selling Entities. Each Tag Along Seller shall be permitted to conditionally exercise Options such that if the Proposed Sale in not consummated, such exercise shall be void and such Options shall remain exercisable on the same terms and conditions as prior to such conditional exercise.

(b) If one or more Tag Along Sellers elect not to include the maximum number of shares of Common Stock which such holders would have been permitted to include in a Proposed Sale pursuant to Paragraph 2(a) (such non-included shares, the “Eligible Shares”), then each of the Selling Entities, or the remaining Tag Along Sellers, or any of them, will have the right to sell in the Proposed Sale a number of additional shares of their Common Stock equal to their pro rata portion of the number of Eligible Shares, based on the relative number of shares of Common Stock then held by each such holder plus all shares of Common Stock which you are then entitled to acquire under any unexercised portion of the Option, to the extent such Option is then exercisable or would become exercisable as a result of the consummation of the Proposed Sale, and such additional shares of Common Stock which any such holder or holders propose to sell shall not be included in any calculation made pursuant to Paragraph 2(a) for the purpose of determining the number of shares of Common Stock which the Management Stockholder Entities will be permitted to include in a Proposed Sale. The Selling Entities will have the right to sell in the Proposed Sale additional shares of Common Stock owned by it equal to the number, if any, of remaining Eligible Shares which will not be included in the Proposed Sale pursuant to the foregoing.

3. Except as may otherwise be provided herein, shares of Common Stock subject to a Request will be included in a Proposed Sale pursuant hereto and in any agreements with purchasers relating thereto on the same terms and subject to the same conditions applicable to the shares of Common Stock which the Selling Entity proposes to sell in the Proposed Sale. Such terms and conditions shall include, without limitation: the sale price; the payment of fees, commissions and expenses; the provision of, and customary representations and warranties as to, information reasonably requested by Parent covering matters regarding the Management Stockholder Entities’ ownership of shares; and the provision of requisite indemnification; provided that any indemnification provided by the Management Stockholder Entities shall be pro rata in proportion with the number of shares of Common Stock to be sold; provided, further, that

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no Management Stockholder Entity shall be required to indemnify any Person for an amount, in the aggregate, in excess of the gross proceeds received in such Proposed Sale. Notwithstanding anything to the contrary in the foregoing, if the consideration payable for shares of Common Stock is securities and the acquisition of such securities by a Management Stockholder Entity would reasonably be expected to be prohibited under U.S., foreign or state securities laws, such Management Stockholder Entity shall be entitled to receive an amount in cash equal to the value of any such securities such Person would otherwise be entitled to receive.

4. Upon delivering a Request, the Management Stockholder Entities will, if requested by Parent, execute and deliver a custody agreement and power of attorney in form and substance reasonably satisfactory to Parent with respect to the shares of Common Stock which are to be sold by the Management Stockholder Entities pursuant hereto (a “Custody Agreement and Power of Attorney”). The Custody Agreement and Power of Attorney will contain customary provisions and will provide, among other things, that the Management Stockholder Entities will deliver to and deposit in custody with the custodian and attorney-in-fact named therein a certificate or certificates (if such shares are certificated) representing such shares of Common Stock (duly endorsed in blank by the registered owner or owners thereof) and irrevocably appoint said custodian and attorney-in-fact as the Management Stockholder Entities’ agent and attorney-in-fact with full power and authority to act under the Custody Agreement and Power of Attorney on the Management Stockholder Entities’ behalf with respect to the matters specified therein.

5. Your right pursuant hereto to participate in a Proposed Sale shall be contingent on your material compliance with each of the provisions hereof and your willingness to execute such documents, on the same material terms and conditions, as are executed by Parent in connection therewith.

6. If the consideration to be paid in exchange for shares of Common Stock in a Proposed Sale pursuant to Section 1 includes any securities, and the receipt thereof by Parent and a Management Shareholder Entity would require under applicable law (a) the registration or qualification of such securities or of any Person as a broker or dealer or agent with respect to such securities or (b) the provision to any selling Management Shareholder Entity of any information regarding the Company, its subsidiaries, such securities or the issuer thereof that would not be required to be delivered in an offering solely to a limited number of “accredited investors” under Regulation D promulgated under the Securities Act of 1933, as amended, and the rules and regulations in effect thereunder, Parent and such Management Shareholder Entity shall not, subject to the following sentence, have the right to sell shares of Common Stock in such proposed sale. In such event, Parent shall have the right to cause to be paid to such selling Management Shareholder Entity in lieu thereof, against surrender of the shares of Common Stock which would have otherwise been sold by such selling Management Shareholder Entity to the prospective buyer in the proposed sale, an amount in cash equal to the Fair Market Value (as defined in the Stockholder’s Agreement) of such shares of Common Stock as of the date such securities would have been issued in exchange for such shares of Common Stock.

7. (a) If the Selling Entities propose to transfer, directly or indirectly, a number of shares of Common Stock equal to 50% or more of the outstanding Common Stock (the Person to whom shares are proposed to be transferred, the “Drag-Along Purchaser”), then if

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requested by Parent, the Management Stockholder Entities shall be required to sell a number of shares of Common Stock equal to the aggregate number of shares of Common Stock held by the Management Stockholder Entities (including shares of Common Stock underlying exercisable Options) multiplied by the Tag Along Sale Percentage (such transaction, a “Drag Transaction”).

(b) Shares of Common Stock held by the Management Stockholder Entities included in a Drag Transaction will be included in any agreements with the Drag-Along Purchaser relating thereto on the same terms and subject to the same conditions applicable to the shares of Common Stock which the Selling Entities propose to sell in the Drag Transaction. Such terms and conditions shall include, without limitation: the pro rata reduction of the number of shares of Common Stock to be sold by the Selling Entities and the Management Stockholder Entities to be included in the Drag Transaction if required by the Drag-Along Purchaser; the sale price; the payment of fees, commissions and expenses; the provision of, and representation and warranty as to, information reasonably requested by Parent covering matters regarding the Management Stockholder Entities’ ownership of shares; and the provision of requisite indemnification; provided that any indemnification provided by the Management Stockholder Entities shall be pro rata in proportion with the number of shares of Common Stock to be sold; provided, further, that no Management Stockholder Entity shall be required to (x) indemnify any Person for an amount, in the aggregate, in excess of the gross proceeds received in such Proposed Sale or (y) agree to any non-compete or non-solicit provisions that are more restrictive than such similar agreement between the Company and such Management Stockholder Entity.

(c) Your pro rata share of any amount to be paid pursuant to Paragraph 3 or 7(b) shall be based upon the number of shares of Common Stock intended to be transferred by the Management Stockholder Entities plus the number of shares of Common Stock you would have the right to acquire under any unexercised portion of the Option which is then vested or would become vested as a result of the Proposed Sale or Drag Transaction, assuming that you receive a payment in respect of such Option.

(d) Notwithstanding anything to the contrary in the foregoing, if the consideration payable for shares of Common Stock is securities and the acquisition of such securities by a Management Stockholder Entity would reasonably be expected to be prohibited under U.S., foreign or state securities laws, such Management Stockholder Entity shall be entitled to receive an amount in cash equal to the value of any such securities such Person would otherwise be entitled to receive.

8. The obligations of Parent hereunder shall extend only to you and your transferees (“Permitted Transferees”) who (a) are Other Management Stockholders (as defined in the Stockholder’s Agreement), (b) are party to a Management Stockholder’s Agreement with the Company and (c) have acquired Common Stock pursuant to a Permitted Transfer (as defined in the Stockholder’s Agreement), and none of the Management Stockholder Entities’ successors or assigns, with the exception of any Permitted Transferee and only with respect to the Common Stock acquired by such Permitted Transferee pursuant to a Permitted Transfer, shall have any rights pursuant hereto.

9. For the avoidance of doubt, for purposes of this Agreement and the Stockholder’s Agreement, sales and purchases of interests in Parent held by the Investors or their

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Affiliates shall be treated as a sale and purchase of the underlying shares of Common Stock represented by the interests so sold or purchased, and the parties hereto shall be treated in the same manner had such shares been held directly by the Investors or their Affiliates.

10. This Agreement shall terminate and be of no further force and effect on the occurrence of the consummation of a Qualified Public Offering (as defined in the Stockholder’s Agreement) in which the Investors dispose of substantially all of their interests in the Company.

11. All notices and other communications required or permitted hereunder shall be in writing and shall be deemed effectively given: (a) upon personal delivery to the party to be notified, (b) when sent by confirmed facsimile if sent during normal business hours of the recipient, if not, then on the next business day, (c) five (5) days after having been sent by registered or certified mail, return receipt requested, postage prepaid or (d) one (1) business day after deposit with a nationally recognized overnight courier, specifying next day delivery, with written verification of receipt. All communications shall be sent to such party’s address as set forth below or at such other address or to such other person as the party shall have furnished to each other party in writing in accordance with this provision:

If to Parent, at the following address:

KKR 2006 Fund, L.P.

9 West 57^th Street, Suite 4200

New York, New York 10019

Attention: Scott Nuttall

Telecopy: (212) 750-0003

with a copy to:

Simpson Thacher & Bartlett LLP

425 Lexington Avenue

New York, New York 10017

Attention: Sean D. Rodgers, Esq.

Telecopy: (212)  ###-###-####

If to the Company, to the Company at the following address:

First Data Corporation

6200 S. Quebec Street

Greenwood Village, Colorado 80111

Attention: General Counsel

Telecopy:

with a copy to:

Simpson Thacher & Bartlett LLP

425 Lexington Avenue

New York, New York 10017

Attention: Sean D. Rodgers, Esq.

Telecopy: (212)  ###-###-####

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If to you, to you at the address first set forth above herein;

If to your Management Stockholder’s Estate or Management Stockholder’s Trust, to the address provided to the Company by such entity.

12. The laws of the State of Delaware shall govern the interpretation, validity and performance of the terms of this Agreement. In the event of any controversy among the parties hereto arising out of, or relating to, this Agreement which cannot be settled amicably by the parties, such controversy shall be finally, exclusively and conclusively settled by mandatory arbitration conducted expeditiously in accordance with the American Arbitration Association rules, by a single independent arbitrator. Such arbitration process shall take place in New York, New York. The decision of the arbitrator shall be final and binding upon all parties hereto and shall be rendered pursuant to a written decision, which contains a detailed recital of the arbitrator’s reasoning. Judgment upon the award rendered may be entered in any court having jurisdiction thereof. Each party shall bear its own legal fees and expenses, unless otherwise determined by the arbitrator; provided that if the Management Stockholder substantially prevails on any of his or her substantive legal claims, then the Investors shall reimburse all legal fees and arbitration fees incurred by the Management Stockholder to arbitrate the dispute. Each party hereto hereby irrevocably waives any right that it may have had to bring an action in any court, domestic or foreign, or before any similar domestic or foreign authority with respect to this Agreement.

13. This Agreement may be executed in counterparts, and by different parties on separate counterparts, each of which shall be deemed an original, but all such counterparts shall together constitute one and the same instrument.

14. It is the understanding of the undersigned that you are aware that no Proposed Sale is contemplated and that such a sale may never occur.

15. This Agreement may be amended by Parent at any time upon the written consent of the majority of the Management Stockholders on the Executive Committee of the Company (which shall be comprised of the Chief Executive Officer and his direct reports), which consent shall not be unreasonably withheld; provided that any amendment (i) that materially disadvantages the Management Stockholder shall not be effective unless and until the Management Stockholder has consented thereto in writing and (ii) that disadvantages a class of stockholders in more than a de minimis way but less than a material way shall require the consent of a majority of the equity interests held by such affected class of stockholders.

16. Capitalized terms used by not defined herein shall have the meaning ascribed to such terms in the Stockholder’s Agreement.

[Signatures on following pages]

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If the foregoing accurately sets forth our agreement, please acknowledge your acceptance thereof in the space provided below for that purpose.

Accepted and agreed this      day of             .

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