8x8 : Second Quarter FY 2023 Ended September 30, 2022

Second Quarter FY 2023

Ended September 30, 2022

October 27, 2022

The eXperience

Communications

Platform

Forward looking statements

This presentation includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and Section 21E of the Securities Exchange Act of 1934. These statements relate to our future operating performance and outlook, financial outlook, revenue growth, and profitability, including whether we will achieve sustainable growth and profitability, cash and investments, our debt including a secured senior term loan facility and senior convertible notes due in 2024 and 2028, interest rates, foreign currency exchange rates and inflationary pressures, the release of new products, market demand for products, impact of the Fuze, Inc. acquisition, changing industry trends and competition and business strategies. These forward-looking statements are predictions only, and actual events or results may differ materially from such statements depending on a variety of factors. These factors include, but are not limited to:

• Customer adoption and demand for our products may be lower than we anticipate.
• A reduction in our total costs as a percentage of revenue may negatively impact our revenues and our business.
• Impact of economic downturns and political instability on us and our customers, including from the COVID-19 pandemic, the war in Ukraine, rising interest rates and other inflationary pressures.
• Risks related to our new secured term loan due 2027 and new convertible senior notes due 2028, including the impact of increased interest expense and timing of any future repayments or refinancing on our stock price;
• Risks related to our remaining convertible senior notes due 2024 and the related capped call transactions, including the timing of any future repayment;
• We may not achieve our target service revenue or total revenue growth rates, or the revenue and other amounts we forecast in our guidance, for a particular quarter or for the full fiscal year of 2023.
• Competitive dynamics of the UCaaS, CCaaS, CPaaS, video and other markets in which we compete may change in ways we are not anticipating.
• Our customer churn rate may be higher than we anticipate.
• Impact of supply chain disruptions.
• Third parties may assert ownership rights in our IP, which may limit or prevent our continued use of the core technologies behind our solutions.
• Impact of Fuze, Inc. acquisition on future financial performance.
• Investments we make in marketing, channel and value-added resellers (VARs), e-commerce, and new products may not result in revenue growth.

For a discussion of such risks and uncertainties, which could cause actual results to differ from those contained in the forward-looking statements, see "Risk Factors" in the Forms 10-K and 10-Q filed by 8x8, Inc. with the Securities and Exchange Commission. All forward-looking statements are qualified in their entirety by this cautionary statement, and 8x8, Inc. undertakes no obligation to update publicly any forward-looking statement for any reason, except as required by law, even as new information becomes available or other events occur in the future.

See Appendix for Non-GAAP reconciliation and disclaimers.

© 8x8, Inc. Copyright and confidential.

Strategic priorities

Expanding Platform		Winning Together		Expanding		Driving Operational
Advantage		With Partners		the Base		Excellence
Integrated		Channel Partner		Upsell, Cross-sell,		Tailored GTM to Drive
UCaaS & CCaaS		Engagement		Retention		Scale and Efficiency

Copyright 2022 8x8, Inc. or its affiliates. All rights reserved.

Q2 FY 2023 Financial Highlights

■ Continued strong performance in enterprise and XCaaS ARR1 ● XCaaS ARR growth >35% YoY

● Enterprise ARR growth >42% YoY

■ Service revenue grew 25% YoY; total revenue increased 24% YoY ■ Non-GAAP operating margin exceeded guidance range

■ Generated operating cash flow of $13.8 million

■ Ended the quarter with $132.3M cash, equivalents, restricted cash and investments

■ Refinanced and extended the maturity of $404M of convertible notes due in 2024 through an exchange for $202M of new convertible notes due in 2028 and $182M cash from the partial proceeds of a new $250M term loan due in 2027

■ Subsequently repurchased an additional $6M in aggregate principal of the 2024 Notes (~$90M in aggregate principal amount of 2024 Notes remained outstanding on 9/30/22)

■ Repurchased 10.6M shares of common stock for approximately $60 million

1. Annualized Recurring Subscriptions and Usage ("ARR") equals the sum of the most recent month of (i) recurring subscription amounts and (ii) platform usage charges for all CPaaS customers (subject to a minimum billings threshold for a period of at least six consecutive months), multiplied by 12.

2. See Appendix for a reconciliation of Non-GAAP metrics to the nearest GAAP metric.

confidential.

Q2 FY 2023 Product Innovation Highlights

• Released an update to the 8x8 XCaaS™ (eXperience Communications as a Service™)platform. Highlights included:
• • A new 8x8 phone app for Microsoft Teams, providing customers with additional options for enabling cost-effective PSTN calling in the Teams apps.
  • Full cloud PSTN support extended to 56 countries and territories, now including Estonia and Lithuania.
  • Expanded customer experience analytics with new visual interaction flow diagrams, enhanced reporting into digital interactions and new advanced search and filter capabilities.
• 8x8 Work is Chrome Enterprise recommended for the Communications solution track, ensuring that 8x8 Work is optimized for ChromeOS environments. With this, organizations that standardize on ChromeOS have the peace of mind to deploy the 8x8 XCaaS platform across all users, from the contact center to the front desk.

© 8x8, Inc. Copyright and confidential.