Exhibit 99.1

GUARANTY FEDERAL BANCSHARES, INC. ANNOUNCES PRELIMINARY THIRD QUARTER 2021 FINANCIAL RESULTS AND A 77% INCREASE IN DILUTED EARNINGS PER SHARE

SPRINGFIELD, MO – OCTOBER 21, 2021

CEO Comments

“Despite continued competitive and interest rate pressures, the Company experienced strong earnings in the third quarter, recognizing significant improvement over the same quarter in 2020. Net interest margin expanded as we’ve seen the positive results of the previous quarter’s loan growth, the repricing of higher-cost certificates of deposit and the repayment of a 6.92% fixed-rate trust preferred issuance. Additionally, the full repayment of $50 million of wholesale funding liabilities during the current quarter has made an immediate positive impact to capital levels and will further improve interest expense and net interest margin going forward. The low interest rate environment and strong housing market continue to keep our mortgage team closing loans at a record pace which contributed significant fee income to our quarterly results. We expect to finish 2021 strong and are already looking forward to 2022 and beyond.”

- Shaun A. Burke, President and Chief Executive Officer

Highlights of Third Quarter 2021

Select Quarterly Financial Data

Below are selected financial results for the Company’s third quarter of 2021, compared to the second quarter of 2021 and the third quarter of 2020. 

The following were items impacting the third quarter 2021 operating results as compared to the same quarter in 2020 and the financial condition results compared to December 31, 2020:

Interest Income – Total interest income increased $891,000 (9%) during the quarter. The Company experienced a $66.7 million increase in the average balance of total interest-earning assets during the quarter, however that growth was primarily in lower yielding cash and investment securities. A sharp decline in key interest rates over the past year offset the strong volume and compressed offering rates on new and existing earning assets. However, the Company’s total earning asset yield increased 7 basis points to 3.81% during the quarter primarily due to the impact of PPP loan fee income which was $899,000 for the quarter compared to $242,000 during the same quarter of 2020.

Interest Expense - Total interest expense decreased $768,000 (34%) during the quarter. The decrease is primarily driven by lower costs on nearly all interest-bearing deposits and borrowings in the current low-rate environment. The average balance of interest-bearing liabilities declined $20.1 million (2%), while the average cost of interest-bearing liabilities decreased 34 basis points to 0.70%. To fund its asset growth and maintain prudent liquidity levels going forward, the Company will continue to utilize a cost-effective mix of retail and commercial core deposits along with non-core, wholesale funding as necessary.

See the Analysis of Net Interest Income and Margin table below for more detailed information.

Asset Quality, Provision for Loan Loss Expense and Allowance for Loan Losses – The Company’s nonperforming assets decreased to $10.6 million (45%) as of September 30, 2021, compared to $19.2 million as of December 31, 2020.

Based on its reserve analysis and methodology, the Company recorded $100,000 in provision for loan loss expense during the quarter compared to $950,000 recorded during the prior year quarter. The expense amount was considered necessary primarily due to loan portfolio growth, offset by reductions in non-performing, delinquent and loans impacted by COVID-19. As of September 30, 2021, the allowance for loan losses of $10.6 million was 1.33% of gross loans outstanding (excluding mortgage loans held for sale), an increase from the 1.28% as of December 31, 2020.

In accordance with generally accepted accounting principles for acquisition accounting, the loans acquired through a prior acquisition were recorded at fair value; therefore, there was no allowance associated with the loans at acquisition. Management continues to evaluate the allowance needed on the acquired loans factoring in the net remaining discount of approximately $449,000 as of September 30, 2021.

Management believes the allowance for loan losses is at a sufficient level to provide for loan losses in the Company’s existing loan portfolio.

Non-interest Income – Non-interest income increased $2.2 million (69%) during the quarter compared to the same quarter in 2020 due to the following factors:

Non-interest Expense – Non-interest expenses increased $2.9 million (37%) during the quarter when compared to the same quarter in 2020 due to the following factors. A significant portion of the increase is due to the $2.6 million prepayment loss recognized on the termination of an interest rate swap discussed above.

Capital – As of September 30, 2021, stockholders’ equity increased $6.5 million (7%) to $95.5 million from $89.0 million as of December 31, 2020. Net income for the nine months ended exceeded dividends paid or declared by $6.2 million. On a per common share basis, tangible book value increased to $21.27 at September 30, 2021 as compared to $19.71 as of December 31, 2020.

From a regulatory capital standpoint, all capital ratios for the Company and Bank remain strong and above regulatory requirements.

Non-Generally Accepted Accounting Principle (GAAP) Financial Measures

In addition to the GAAP financial results presented in this press release, the Company presents non-GAAP financial measures discussed below. These non-GAAP measures are provided to enhance investors’ overall understanding of the Company’s current financial performance. Additionally, Company management believes that this presentation enables meaningful comparison of financial performance in various periods. However, the non-GAAP financial results presented should not be considered a substitute for results that are presented in a manner consistent with GAAP. A limitation of the non-GAAP financial measures presented is that the adjustments concern gains, losses or expenses that the Company does expect to continue to recognize; the adjustments of these items should not be construed as an inference that these gains or expenses are unusual, infrequent or non-recurring. Therefore, Company management believes that both GAAP measures of its financial performance and the respective non-GAAP measures should be considered together.

Operating Income

Operating income is a non-GAAP financial measure that adjusts net income for the following non-operating items:

A reconciliation of the Company’s net income to its operating income for the three and nine months ended September 30, 2021 and 2020 is set forth below.

About Guaranty Federal Bancshares, Inc.

Guaranty Federal Bancshares, Inc. (NASDAQ:GFED) has a subsidiary corporation offering full banking services. The principal subsidiary, Guaranty Bank, is headquartered in Springfield, Missouri, and has 16 full-service branches in Greene, Christian, Jasper and Newton Counties and a Loan Production Office in Webster County. Guaranty Bank is a member of the MoneyPass ATM network which provide its customers surcharge free access to over 37,000 ATMs nationwide. For more information visit the Guaranty Bank website: www.gbankmo.com.

The Company may from time to time make written or oral “forward-looking statements,” including statements contained in the Company’s filings with the SEC, in its reports to stockholders and in other communications by the Company, which are made in good faith by the Company pursuant to the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995. Words such as “anticipates,” “estimates,” “believes,” “expects,” and similar expressions are intended to identify such forward-looking statements but are not the exclusive means of identifying such statements.

These forward-looking statements involve risks and uncertainties, such as statements of the Company’s plans, objectives, expectations, estimates and intentions, that are subject to change based on various important factors (some of which are beyond the Company’s control). The following factors, among others, could cause the Company’s financial performance to differ materially from the plans, objectives, expectations, estimates and intentions expressed in such forward-looking statements:

● the strength of the United States economy in general and the strength of the local economies in which we conduct operations;

● the effects of the COVID-19 pandemic, including on our credit quality and business operations, as well as its impact on general economic and financial market conditions;

● the effects of, and changes in, trade, monetary and fiscal policies and laws, including interest rate policies of the Federal Reserve, inflation, interest rates, market and monetary fluctuations;

● the timely development of and acceptance of new products and services and the perceived overall value of these products and services by users, including the features, pricing and quality compared to competitors’ products and services;

● the willingness of users to substitute competitors’ products and services for our products and services;

● our success in gaining regulatory approval of our products and services, when required;

● the impact of changes in financial services laws and regulations (including laws concerning taxes, banking, securities and insurance);

● technological changes;

● the ability to successfully manage and integrate any future acquisitions if and when our board of directors and management conclude any such acquisitions are appropriate;

● changes in consumer spending and saving habits;

● our success at managing the risks resulting from these factors; and

● other factors set forth in reports and other documents filed by the Company with the SEC from time to time.

Financial Highlights

(1) Total Assets less Intangibles divided by Stockholders’ Equity

(2) Stockholders’ Equity less Intangibles divided by Common Shares Outstanding