Exhibit 99.1 Wayfair Announces First Quarter 2024 Results, Reports Fourth Consecutive Quarter of Strong Profitability Q1 Net Revenue of $2.7 billion with 22.3 million Active Customers BOSTON, MA — May 2, 2024 — Wayfair Inc. (“Wayfair,” “we,” or “our”) (NYSE: W), one of the world’s largest destinations for the home, today reported financial results for its first quarter ended March 31, 2024. First Quarter 2024 Financial Highlights • Total net revenue of $2.7 billion, decreased $45 million, down 1.6% year ove ...