Exhibit 99.1

Synovus Announces Earnings for the First Quarter 2017

Diluted Earnings per Share of $0.56, up 44.1% vs. 1Q16

Also Announces Definitive Agreement with World’s Foremost Bank and Capital One

COLUMBUS, Ga., April 17, 2017 – Synovus Financial Corp. (NYSE: SNV) today reported financial results for the quarter ended March 31, 2017.

First Quarter Highlights

“We are pleased with our strong first quarter performance, highlighted by an 8 percent year-over-year revenue increase driven by steady balance sheet growth and expanded net interest margin,” said Kessel D. Stelling, Synovus chairman and CEO. “We remain confident in our ability to deliver on our 2017 financial targets, and we are excited about the work underway to prepare for our 2018 transition to a single brand. Leveraging a common brand while maintaining our local, relationship-centered delivery model will further boost Synovus brand awareness and enhance our ability to promote our broader banking capabilities to prospects and existing customers.”

Balance Sheet

Core Performance

Credit Quality

Capital Ratios

Definitive Agreement with World’s Foremost Bank and Capital One

On April 17, 2017, Synovus Bank entered into a definitive agreement to acquire certain assets and assume certain liabilities of World’s Foremost Bank (“WFB”), a wholly-owned subsidiary of Cabela’s Incorporated (NYSE: CAB) (“Cabela’s”). Immediately following the closing of this transaction, Synovus will sell the credit card assets and related liabilities to Capital One Bank (USA), National Association, a bank subsidiary of Capital One Financial Corporation (NYSE: COF) (“Capital One”), while retaining the approximately $1.2 billion brokered time deposit portfolio. Pursuant to the terms of the agreement, Synovus will receive $75 million in consideration from Cabela’s and Capital One. The transaction is expected to close in the third quarter of 2017 and is subject to customary regulatory approvals as well as completion of the Cabela’s and Bass Pro Shops merger announced in October 2016.

“This transaction will provide Synovus with additional liquidity to support organic growth, as well as incremental capital that can be utilized to accelerate progress toward achieving our stated long-term ROA and efficiency goals,” said Stelling.

First Quarter Earnings Conference Call

Synovus will host an earnings highlights conference call at 8:30 a.m. EDT on April 18, 2017. The earnings call will be accompanied by a slide presentation. Shareholders and other interested parties may listen to this conference call via simultaneous Internet broadcast. For a link to the webcast, go to investor.synovus.com/event. The replay will be archived for 12 months and will be available 30-45 minutes after the call.

Synovus Financial Corp.

Synovus Financial Corp. is a financial services company based in Columbus, Georgia, with over $30 billion in assets. Synovus provides commercial and retail banking, investment, and mortgage services to customers through 28 locally-branded divisions, 248 branches, and 327 ATMs in Georgia, Alabama, South Carolina, Florida, and Tennessee. Synovus Bank, a wholly owned subsidiary of Synovus, was recognized as one of America’s Most Reputable Banks by American Banker and the Reputation Institute in 2016 and 2015, and was named “Best Regional Bank, Southeast” by MONEY Magazine for 2016-2017. Synovus is on the web at synovus.com, on Twitter @synovus, and on LinkedIn at http://linkedin.com/company/synovus.

Forward-Looking Statements

This press release and certain of our other filings with the Securities and Exchange Commission contain statements that constitute “forward-looking statements” within the meaning of, and subject to the protections of, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities

Exchange Act of 1934, as amended. All statements other than statements of historical fact are forward-looking statements. You can identify these forward-looking statements through Synovus’ use of words such as “believes,” “anticipates,” “expects,” “may,” “will,” “assumes,” “should,” “predicts,” “could,” “would,” “intends,” “targets,” “estimates,” “projects,” “plans,” “potential” and other similar words and expressions of the future or otherwise regarding the outlook for Synovus’ future business and financial performance and/or the performance of the banking industry and economy in general. These forward-looking statements include, among others, our expectations regarding deposits, loan growth and the net interest margin; expectations on our growth strategy, expense initiatives, capital management and future profitability; expectations on credit trends and key credit metrics; expectations on the impact of certain transactions on our financial performance, expectations on opportunities and alternatives to deploy additional capital as a result of such transactions and expectations regarding the closing or benefits of such transactions; and the assumptions underlying our expectations. Prospective investors are cautioned that any such forward-looking statements are not guarantees of future performance and involve known and unknown risks and uncertainties which may cause the actual results, performance or achievements of Synovus to be materially different from the future results, performance or achievements expressed or implied by such forward-looking statements. Forward-looking statements are based on the information known to, and current beliefs and expectations of, Synovus’ management and are subject to significant risks and uncertainties. Actual results may differ materially from those contemplated by such forward-looking statements. A number of factors could cause actual results to differ materially from those contemplated by the forward-looking statements in this press release. Many of these factors are beyond Synovus’ ability to control or predict.

These forward-looking statements are based upon information presently known to Synovus’ management and are inherently subjective, uncertain and subject to change due to any number of risks and uncertainties, including, without limitation, the risks and other factors set forth in Synovus’ filings with the Securities and Exchange Commission, including its Annual Report on Form 10-K for the year ended December 31, 2016 under the captions “Cautionary Notice Regarding Forward-Looking Statements” and “Risk Factors” and in Synovus’ quarterly reports on Form 10-Q and current reports on Form 8-K. We believe these forward-looking statements are reasonable; however, undue reliance should not be placed on any forward-looking statements, which are based on current expectations and speak only as of the date that they are made. We do not assume any obligation to update any forward-looking statements as a result of new information, future developments or otherwise, except as otherwise may be required by law.

Use of Non-GAAP Financial Measures

The measures entitled adjusted diluted earnings per share; average core transaction deposits; adjusted non-interest income; adjusted non-interest expense; adjusted efficiency ratio; return on average tangible common equity; tangible common equity ratio; and common equity Tier 1 (CET1) ratio (fully phased-in) are not measures recognized under U.S. generally accepted accounting principles (GAAP) and therefore are considered non-GAAP financial measures. The most comparable GAAP measures are diluted earnings per share; total average deposits; total non-interest income; total non-interest expense; efficiency ratio; return on average common equity; total shareholders’ equity to total assets ratio; and the CET1 ratio, respectively.

Management believes that these non-GAAP financial measures provide meaningful additional information about Synovus to assist management, investors, and bank regulators in evaluating Synovus’ operating results, financial strength, the performance of its business and the strength of its capital position. However, these non-GAAP measures have inherent limitations as analytical tools and should not be considered in isolation or as a substitute for analyses of operating results or capital position as reported under GAAP. Adjusted diluted earnings per share is a measure used by management to evaluate operating results exclusive of items that are not indicative of ongoing operations and impact period-to- period comparisons. Average core transaction deposits is a measure used by management to evaluate organic growth of deposits and the quality of deposits as a funding source. Adjusted non-interest income is a measure utilized by management to measure non-interest income exclusive of net investment securities gains/losses and changes in fair value of private equity investments, net. Adjusted non-interest expense and the adjusted efficiency ratio are measures utilized by management to measure the success of expense management initiatives focused on reducing recurring controllable operating costs. Return on average tangible common equity is a measure used by management to compare Synovus’ performance with other financial institutions because it calculates the return available to common shareholders without the impact of intangible assets and their related amortization, thereby allowing management to evaluate the performance of the business consistently. The tangible common equity ratio and the common equity Tier 1 (CET1) ratio (fully phased-in) are used by management and bank regulators to assess the strength of our capital position. These non-GAAP financial measures should be considered as additional views of the way our financial measures are affected by significant items and other factors, and since they are not required to be uniformly applied, they may not be comparable to other similarly titled measures at other companies and should not be considered as substitutes for diluted earnings per share; total average deposits; total non-interest income; total non-interest expense; efficiency ratio; return on average common equity; total shareholders’ equity to total assets ratio, and the CET1 ratio determined in accordance with GAAP, and may not be comparable to other similarly titled measures at other companies.

The computations of adjusted diluted earnings per share; average core transaction deposits; adjusted non-interest income; adjusted non-interest expense; adjusted efficiency ratio; return on average tangible common equity; tangible common equity ratio; and common equity Tier 1 (CET1) ratio (fully phased-in) and the reconciliation of these measures to diluted earnings per share; total average deposits; total non-interest income; total non-interest expense; efficiency ratio; return on average common equity; total shareholders’ equity to total assets ratio, and the CET1 ratio are set forth in the tables below.

Reconciliation of Non-GAAP Financial Measures, continued