Exhibit 10(a)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form N-1A of BlackRock Funds II of our report dated February 24, 2026, relating to the financial statements and financial highlights of BlackRock Retirement Income 2030 Fund, which appears in BlackRock Fund II’s Certified Shareholder Report on Form N-CSR for the year ended December 31, 2025. We also consent to the references to us under the headings “Financial Statements”, “Independent Registered Public Accounting Firm” and “Financial Highlights” in such Registration Statement.

s/ PricewaterhouseCoopers LLP

Philadelphia, Pennsylvania

April 23, 2026