UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM10-K

(Mark One)

For the fiscal year ended March 31, 20202021

or

For the transition period from __________________ to _________________________

333-208544-08

(Commission file number of Issuing Entity)

NISSAN AUTO RECEIVABLES2018-B OWNER TRUST

(Exact name of issuing entity specified in its charter)

Central Index Key Number of issuing entity: 0001743852

333-208544

(Commission file number of Depositor)

NISSAN AUTO RECEIVABLES CORPORATIONCOMPANY II LLC

(Exact name of depositor as specified in its charter)

Central Index Key Number of depositor: 0001129068

NISSAN MOTOR ACCEPTANCE CORPORATIONCOMPANY LLC

(Exact name of sponsor as specified in its charter)

Central Index Key Number of sponsor: 0001540639

Registrant’s telephone number, including area code    (615)725-1121

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ☐    No  ☒

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ☐    No  ☒

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted and posted pursuant to Rule 405 of RegulationS-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, anon-accelerated filer, a smaller reporting company, or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule12b-2 of the Exchange Act.:

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report.  ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule12b-2 of the Act).    Yes  ☐    No  ☒

State the aggregate market value of the voting andnon-voting common equity held bynon-affiliates computed by reference to the price at which the common equity was last sold, or the average bid and asked price of such common equity, as of the last business day of the registrant’s most recently completed second fiscal quarter. Not applicable.

Registrant has no common equity outstanding held bynon-affiliates.

PART I

The following items have been omitted in accordance with General Instructions J(1) to Form10-K:

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PART IV

The following exhibits are filed as part of this annual report or, where indicated, were heretofore filed and are hereby incorporated by reference.

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Item 1119 of Regulation AB. Affiliations and Certain Relationships and Related Transactions.

Information required by Item 1119 of Regulation AB has been omitted from this report on Form10-K in reliance on the Instruction to Item 1119.

Item 1122 of Regulation AB. Compliance with applicable Servicing Criteria.

Nissan Motor Acceptance CorporationCompany LLC (the “Servicer”) and the Indenture Trustee (collectively, the “Servicing Parties”) have each been identified by the registrant as parties participating in the servicing function with respect to the asset pool held by the Issuing Entity. Each of the Servicing Parties has completed a report on an assessment of compliance with the servicing criteria set forth in paragraph (d) of Item 1122 of Regulation AB applicable to it (each, a “Servicing Assessment Report”), which Servicing Assessment Reports are attached as exhibits to this Form10-K. In addition, each of the Servicing Parties has provided an attestation report (each, an “Attestation Report”) by a registered public accounting firm, which Attestation Reports are also attached as exhibits to this Form10-K. None of the Assessment Reports or the related Attestation Reports has identified any material instance of noncompliance with the servicing criteria applicable to the Servicing Parties.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: June 29, 20202021

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