Form 485BPOS Separate Account No. 70

Filed with the Securities and Exchange Commission on August 22, 2025.

REGISTRATION NO. 333-178750

REGISTRATION NO. 811-22651

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-4

(Check appropriate box or boxes)

SEPARATE ACCOUNT NO. 70

(Exact Name of Registered Separate Account)

EQUITABLE FINANCIAL LIFE INSURANCE COMPANY

(Name of Insurance Company)

1345 Avenue of the Americas, New York, New York 10105

(Address of Insurance Company’s Principal Executive Offices)

Insurance Company’s Telephone Number, including Area Code: (212) 554-1234

ALFRED AYENSU-GHARTEY

VICE PRESIDENT AND ASSOCIATE GENERAL COUNSEL

Equitable Financial Life Insurance Company

1345 Avenue of the Americas, New York, New York 10105

(Name and Address of Agent for Service)

Approximate Date of Proposed Public Offering: Continuous.

It is proposed that this filing will become effective (check appropriate box):

If appropriate, check the following box:

Check each box that appropriately characterizes the Registrant:

EXPLANATORY NOTE

This Post-Effective Amendment No. 32 (“PEA”) to the Form N-4 Registration Statement No. 333-178750 (“Registration Statement”) of Equitable Financial Life Insurance Company (“Equitable Financial”) and its Separate Account No. 70 is being filed for the purpose of including in the Registration Statement the additions/modifications reflected in the Supplement and Part C. This Post-Effective Amendment No.  32 incorporates by reference the information contained in Parts A and B of Post-Effective Amendment No. 31, filed on April 23, 2025.

Equitable Financial Life Insurance Company

Equitable Financial Life Insurance Company of America

Supplement dated August 22, 2025 to the current variable annuity prospectuses for:

This Supplement updates certain information in the Appendix listing available Portfolio Companies in the most recent prospectuses, initial summary prospectuses, updating summary prospectuses and modern alternative disclosure notices for variable annuity contracts and in any supplements to those prospectuses, initial summary prospectuses, updating summary prospectuses, and modern alternative disclosure annual notices (collectively, the “Prospectuses” or “Prospectus”). Unless otherwise indicated, all other information included in your prospectus remains unchanged. You should read this Supplement in conjunction with the Prospectus and retain it for future reference. The terms we use in this Supplement have the same meaning as in the Prospectus. We will send you another copy of any prospectus or supplement without charge upon request. Please contact the customer service group referenced in the Prospectus.

The Portfolios discussed below may not be available in all contracts. Please refer to your Prospectuses for the current variable investment options and corresponding underlying Portfolios available to you under your contract.

The purpose of this Supplement is to provide you with information regarding certain Portfolio substitutions. As is applicable to your contract, please note the following:

(1) Substitution of Underlying Portfolio Shares

Subject to all necessary regulatory and other approvals, effective on or about October 24, 2025 (the “Substitution Date”), pursuant to the terms of your variable annuity contract and consistent with the terms and conditions of the U.S. Securities and Exchange Commission’s statement on insurance product fund substitutions, shares of the Replacement Portfolios listed in the table below will be substituted for shares of the corresponding Removed Portfolios listed opposite their names at relative net asset value. Each of the Removed Portfolios currently serves as an underlying Portfolio for a variable investment option. At the time of the substitution, each impacted variable investment option will change its name to correspond to the Replacement Portfolio name. We will automatically direct any contributions, allocation elections, rebalancing or other transaction made using the old variable investment option name to the applicable new variable investment option name. Until each substitution occurs, the variable investment option that invests in the underlying portfolio being substituted will be available for investment. You may continue to transfer your account value among the investment options prior to the substitution, as usual, including choosing to transfer your account value in an impacted variable investment option to other investment options under your contract. Once each substitution occurs, the variable investment option that invests in the underlying portfolio that was substituted will no longer be available for investment and the remaining account value in the Removed Portfolio will be transferred to the Replacement Portfolio. You are permitted to make transfers out of each Removed Portfolio to one or more other Portfolios.

Note: We will not exercise any rights reserved by us under the contract to impose additional restrictions on transfers until at least 30 days after the Substitution Date, and any transfers out of a Replacement Portfolio during the 30-day period following the Substitution Date will not count against any limited number of transfers or a limited number of transfers permitted without a transfer charge, as applicable. Please contact the customer service center referenced in your Prospectus for more information about your variable investment options and for information on how to transfer your account value.

The Removed Portfolios (current underlying Portfolios) and corresponding Replacement Portfolios (new underlying Portfolios) are:

For some period of time after each substitution occurs, you may still receive correspondence or documents using the corresponding substituted fund name.

Note: You will not bear any of the expenses related to the substitutions, and the substitution will have no tax consequences for you.

(2) New Variable Investment Options

Subject to all necessary regulatory and other approvals, effective on or about October 24, 2025, pursuant to the terms of your variable annuity contract and consistent with the terms and conditions of the U.S. Securities and Exchange Commission’s statement on insurance product fund substitutions, the following variable investment options and corresponding underlying fund portfolios will be available in the corresponding products:

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Therefore, as applicable to your contract, the following information has been added to the Appendix “Investment options available under the contract” in the Prospectus:

Affiliated Portfolio Companies:

Certain Removed Portfolios (and therefore the corresponding Replacement Portfolios) may not be available under your contract. See your Prospectus for more information.

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PART C

OTHER INFORMATION

Resolutions of the Board of Directors of The Equitable Life Assurance Society of the United States (“Equitable”) authorizing the establishment of the Registrant, incorporated herein by reference to Registration Statement on Form N-4 (File No. 333-05593) filed on June 7, 1996.

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Item 28. Directors and Officers of the Insurance Company

Set forth below is information regarding the directors and principal officers of the Insurance Company. The Insurance Company’s address is 1345 Avenue of the Americas, New York, New York 10105. The business address of the persons whose names are preceded by an asterisk is that of the Insurance Company.

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Separate Account No. 70 of Equitable Financial Life Insurance Company (the “Separate Account”) is a separate account of Equitable Financial Life Insurance Company. Equitable Financial Life Insurance Company, a New York stock life insurance company, is an indirect wholly owned subsidiary of Equitable Holdings, Inc. (the “Holding Company”).

Set forth below is the subsidiary chart for the Holding Company:

Equitable Holdings, Inc. - Subsidiary Organization Chart: Q1-2025 is filed herewith to Registration Statement on Form N-4 (File No. 333-178750) filed on August 22, 2025.

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The By-Laws of Equitable Financial Life Insurance Company (the “Company”) provide, in Article VII, as follows:

(a) To the extent permitted by the law of the State of New York and subject to all applicable requirements thereof:

The directors and officers of the Company are insured under policies issued by X.L. Insurance Company, Arch Insurance Company, Endurance Specialty Insurance Company, U.S. Specialty Insurance, ACE, Chubb Insurance Company, AXIS Insurance Company, Zurich Insurance Company, AWAC (Allied World Assurance Company Ltd.), Aspen Bermuda XS, CNA, AIG, Nationwide, Berkley, Berkshire, SOMPO, Chubb, Markel, Ascot, Bowhead, and Westfield. The annual limit on such policies is $300 million, and the policies insure the officers and directors against certain liabilities arising out of their conduct in such capacities.

To the extent permitted by law of the State of New York and subject to all applicable requirements thereof, Equitable Distributors, LLC and Equitable Advisors, LLC have undertaken to indemnify each of its respective directors and officers who is made or threatened to be made a party to any action or proceeding, whether civil or criminal, by reason of the fact the director or officer, or his or her testator or intestate, is or was a director or officer of Equitable Distributors, LLC and Equitable Advisors, LLC.

Insofar as indemnification for liability arising under the Securities Act of 1933 (“Act”) may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

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Item 31. Principal Underwriters

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Not applicable.

This information is omitted as it is provided in the Registered Separate Account’s most recent report on Form N-CEN.

Not applicable.

(a)  The Insurance Company represents that, with respect to Variable Options, the fees and charges deducted under the contracts described in this Registration Statement, in the aggregate, are reasonable in relation to the services rendered, the expenses expected to be incurred, and the risks assumed by the Insurance Company under the respective contracts.

The Registered Separate Account hereby represents that it is relying on the November 28, 1988 no-action letter (Ref. No. IP-6-88) relating to variable annuity contracts offered as funding vehicles for retirement plans meeting the requirements of Section 403(b) of the Internal Revenue Code. The Registered Separate Account further represents that it will comply with the provisions of paragraphs (1)-(4) of that letter.

(b)  Not applicable.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this registration statement under rule 485(b) under the Securities Act and has duly caused this registration statement to be signed on its behalf by the undersigned, duly authorized, in the City of New York, and State of New York on this 22nd day of August, 2025.

SIGNATURES

As required by the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the date indicated: