Independent Bank Group Investor Presentation — July 2022

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Earnings Presentation

July 25, 2022 NASDAQ: IBTXNASDAQ: IBTX 2Safe Harbor Statement

The numbers as of and for the quarter ended June 30, 2022 are unaudited. This communication

contains “forward-looking statements” within the meaning of the Private Securities Litigation Reform

Act of 1995 regarding the financial condition, results of operations, business plans and the future

performance of Independent Bank Group, Inc. (“IBTX”). Words such as “anticipates,” “believes,”

“estimates,” “expects,” “forecasts,” “intends,” “plans,” “projects,” “could,” “may,” “should,” “will” or

other similar words and expressions are intended to identify these forward-looking statements. These

forward-looking statements are based on IBTX’s current expectations and assumptions regarding

IBTX’s business, the economy, and other future conditions. Because forward-looking statements relate

to future results and occurrences, they are subject to inherent uncertainties, assumptions, risks, and

changes in circumstances that are difficult to predict. Many possible events or factors could

materialize or IBTX’s underlying assumptions could prove incorrect and affect IBTX’s future financial

results and performance and could cause actual results or performance to differ materially from

anticipated results or performance. Such risks and uncertainties include, among others, risks relating

to the conflict between Russia and the Ukraine, risks relating to the coronavirus (COVID-19) pandemic

and its effect on U.S. and world financial markets, potential regulatory actions, changes in consumer

behaviors and impacts on and modifications to the operations and business of IBTX relating thereto,

and the business, economic and political conditions in the markets in which IBTX operates. Except to

the extent required by applicable law or regulation, IBTX disclaims any obligation to update such

factors or to publicly announce the results of any revisions to any of the forward-looking statements

included herein to reflect future events or developments. Further information regarding IBTX and

factors which could affect the forward-looking statements contained herein can be found in IBTX’s

Annual Report on Form 10-K for the fiscal year ended December 31, 2021 , its Quarterly Report on

Form 10-Q for the period ended March 31, 2022 and its other filings with the Securities and Exchange

Commission.NASDAQ: IBTX 3Safe Harbor Statement (cont.)

Non-GAAP Financial Measures

In addition to results presented in accordance with GAAP, this presentation contains certain non-GAAP financial