valuation dates

Form 8937 (December 2017)

Department of the Treasury Internal Revenue Service

Report of Organizational Actions

Affecting Basis of Securities

See separate instructions.

OMB No. 1545-0123

Part I

Reporting Issuer

1

Issuer's name

2 Issuer's employer identification number (EIN)

BLACKROCK U.S. GOVERNMENT BOND PORTFOLIO OF BLACKROCK SERIES FUND II,

INC.

22-2758245

3

Name of contact for additional information

4

Telephone No. of contact

5 Email address of contact

BlackRock Advisors

(800) 882-0052

mutual_funds_ff_www@blackrock.com

6

Number and street (or P.O. box if mail is not delivered to street address) of contact

7 City, town, or post office, state, and ZIP code of contact

One Financial Center

Boston, MA 02111

8

Date of action

9 Classification and description

April 28, 2023

Common Stock - Regulated Investment Company

10

CUSIP number

11 Serial number(s)

12 Ticker symbol

13 Account number(s)

See Statement 1

n/a

See Statement 1

n/a

Part II

Organizational Action Attach additional statements if needed. See back of form for additional questions.

14 Describe the organizational action and, if applicable, the date of the action or the date against which shareholders' ownership is measured for

the action

The Issuer paid distributions to common shareholders from January 2023 to April 2023.

All or a portion of each distribution constitutes a non-taxable return of capital.

15 Describe the quantitative effect of the organizational action on the basis of the security in the hands of a U.S. taxpayer as an adjustment per

share or as a percentage of old basis

The portion of the distribution that constitutes a non-taxable return of capital will decrease a

U.S. taxpayer's basis in the shares of the Issuer. Please see Statement 1 for the non-taxable return of capital.

16 Describe the calculation of the change in basis and the data that supports the calculation, such as the market values of securities and the

Issuer's current and accumulated earnings and profits were compared to distributions paid during the taxable period ended April 28, 2023. The non-taxable return of capital represents the amount of distributions paid during the taxable period ended

April 28, 2023 in excess of Issuer's current and accumulated earnings and profits under IRC Section 316.

For Paperwork Reduction Act Notice, see the separate Instructions.

Cat. No. 37752P

Form 8937 (12-2017)

NM0623U-2958401-1/3

Form 8937 (12-2017)

Page 2

Part II

Organizational Action (continued)

17 List the applicable Internal Revenue Code section(s) and subsection(s) upon which the tax treatment is based

Internal Revenue Code Sections 301, 316, 852

18 Can any resulting loss be recognized?

No

19 Provide any other information necessary to implement the adjustment, such as the reportable tax year

See Statement 1 for the per share amounts and dates of distributions impacted by this organizational action.

This organizational action is reportable with respect to calendar year 2023.

Under penalties of perjury, I declare that I have examined this return, including accompanying schedules and statements, and to the best of my knowledge and belief, it is true, correct, and complete. Declaration of preparer (other than officer) is based on all information of which preparer has any knowledge.

Sign

Here Signature

Date

6/12/2023

Print your name Ed Brodzinski

Title

Assistant Treasurer

Paid

Print/Type preparer's name

Preparer's signature

Date

Check ✔

if

PTIN

Baruch J. Cohen

6/12/2023

P01269048

Preparer

self-employed

Use Only

Firm's name

Deloitte Tax LLP

Firm's EIN

86-1065772

Firm's address

30 Rockefeller Plaza, New York, NY 10112-0015

Phone no.

212-492-4000

Send Form 8937 (including accompanying statements) to: Department of the Treasury, Internal Revenue Service, Ogden, UT 84201-0054

NM0623U-2958401-2/3

STATEMENT 1

BLACKROCK U.S. GOVERNMENT BOND PORTFOLIO OF BLACKROCK SERIES FUND II, INC.

F.E.I.N. 22-2758245

FOR THE TAXABLE PERIOD ENDED APRIL 28, 2023

ATTACHMENT TO FORM 8937

NON-TAXABLE RETURN OF CAPITAL

Per Share

Distribution

Distribution

Reduction of Basis

Class

Ticker

Cusip

Month

Ex-Date

Payable Date

in Stock

CLASS I

ITMGV

09259F204

January

Daily

02/01/2023

0.003078156

CLASS I

ITMGV

09259F204

February

Daily

03/01/2023

0.003229206

CLASS I

ITMGV

09259F204

March

Daily

04/03/2023

0.003489160

CLASS I

ITMGV

09259F204

April

Daily

05/01/2023

0.004075103

NM0623U-2958401-3/3

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BlackRock Debt Strategies Fund Inc. published this content on 16 June 2023 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 16 June 2023 08:51:18 UTC.