Welcome to McQuillan and Company, P.A.

Measuring capital to assess profitability and return potential since 2009.

McQuillan & Company is a full-service CPA firm experienced in providing financial guidance and expert consulting to individuals and businesses. For over ten years, I have successfully operated my Accounting, Tax & Business Advisory practice in Tampa, Florida. It is with a deep commitment to excellence and a continuous pursuit of knowledge that enhances our professional services. We simply help clients manage information to improve decision making.

Dustin W. McQuillan, CPA


FL CPA Firm License #67173

Schedule an online consultation with Dustin W. McQuillan, CPA.

McQuillan & Company host online meetings that offer video conference and screen sharing capabilities for clients.
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Organized Plans
for business owners.

Engage a financial information professional to build an organized plan that considers both personal and business interests.

  • Update your individual portfolio with current information.
  • Read periodic financial statements and tax returns.
  • Make sense of incoming and outgoing cash flow.
  • Project taxable income and calculate estimated tax.
  • Get QuickBooks Online Plus and add full-service payroll.
  • Upgrade your email to a hosted exchange account using Office 365.
  • Invest in a custom domain and publish your portfolio site.

Project taxable income and calculate your estimated tax.

Engage a CPA to review your prior year tax return, project current taxable income and calculate estimated income taxes.
Calculate your estimated tax

Accounting, Tax & Business Advisory


Prepare financial statements

Review GAAP compliance

Maintain fixed asset schedules


Prepare federal tax returns

Project taxable income

Calculate estimated tax


Perform financial analysis

Manage working capital

Outsource CFO responsibilities


Reconcile bank & credit accounts

Reconcile payroll records

Record depreciation & amortization


Perform income tax analysis

Prepare state & local returns

Taxpayer representation


Perform corporate analysis

Guide capital formation strategy

Assist mergers & acquisitions


Review sale and expense reports

Prepare sales & use tax returns

Taxpayer representation


Perform gift tax analysis


Provide fiduciary accounting


Content management solutions

Data migration implementation

Software setup & configuration

Upgrade to the #1 online accounting software.

Work from anywhere with less data entry while sharing access with your accountant.
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Managing information systems

Hi there! I am Dustin McQuillan, a CPA and Entrepreneur in Tampa, Florida. With an accounting and management information systems background, my firm offers affordable solutions that can enhance financial visibility of both personal and business activities.

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Current News, Tips & Updates

Here are some of the latest posts from our blog.

Information management

Create a data security plan to protect your information.

Each small business needs to understand the risk of information, systems, and networks that support their business. As a Trusted...
July 25, 2019
State & local tax

Are you paying a sales or use tax for purchases made online?

You should know the difference between sales and use tax because consumers are liable for both.  It is up to...
July 21, 2019
Federal tax

Social Security wage base increases to $132,990 for 2019.

The Social Security Administration (SSA) has announced that the wage base for computing the Social Security tax (OASDI) in 2019...
June 7, 2019
Business consulting

Schedule a Webex meeting with Dustin W. McQuillan, CPA.

Hi, I am Dustin McQuillan, a CPA and entrepreneur in Tampa, Florida. For more than ten years, I have managed...
May 24, 2019
Information management

Get organized for less than $2 per day with QuickBooks Online.

Intuit’s QuickBooks Online is ideal for any business. We value your time and money. That’s why we recommend upgrading to...
May 12, 2019
Federal tax

Estimated tax payments are due 04/15, 06/17, 09/16 and 01/15

If you don’t pay enough tax through withholding and estimated tax payments, you may be charged a penalty. Individuals, including...
January 2, 2019

We Organized Plans to help you get started.

Engage McQuillan & Company to build and maintain organized plans that can last a legacy.
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