We help you simplify, automate and maximize your tax & accounting

We're your new CPA and accountant. Whether you need tax preparation, tax planning, amendments, bookkeeping, payroll, or other accounting services, we help you file, organize and comply.

Steven Rutherford CPA

After interviewing several firms and practitioners, I decided to affiliate with SDO CPA.  Their team grew their tax & accounting knowledge at KPMG, multiple family offices, and Tax Management experience with EY LLP in Dallas, Texas. They bring a wealth of tax and accounting knowledge.

Steven rutherforD, CPA

Why work with us

There is constant change, especially now, with all the new tax laws coming out nearly daily. You want to work with a team who has a diverse set of knowledge across individuals, corporations, partnerships, tax planning, bookkeeping, and accounting to ensure you maximize your return and automate your finances as best as you can. Our team comes from EY, KPMG, and many family offices.

HR, Payroll, & Benefits 

Your situation is unique. We individualize HR, Payroll, & Benefits to fit your needs that scale with you.

Tax Preparation & Planning

1040, 1040SR, 1040X, 1041, 1065, 1099, 1120C, 1120S, 709, K-1, K-2, K-3, sales tax, international tax, cost segregation.

Accounting & Bookkeeping

Are you looking to automate your bookkeeping to have up-to-date financials for your business? We'll help.

Meet The Team

We’re a diverse team that focuses on staying up to date with the hundreds of changes that happen every year in tax and accounting.

Serena Do, CPA

Managing Partner

Fawn W., CPA


Cierra M.

Data entry clerk

Finally – A CPA Firm That "Gets You"

We help individuals, businesses, and real estate investors like yourself save thousands in taxes and grow their business with outsourced accounting services!

Best of all, we are business owners and real estate investors ourselves. This allows us to help you with accounting expertise and tax advice and provide unique operational insights.

Individuals & Families

With all the new tax credits, we help you get what you're owed.

Start-ups & Small Businesses

Outsource your accounting, payroll, and bookkeeping to us to save you time and money.

Corporations & Partnerships

We can help you plan, structure, and automate to maximize your tax savings so you can focus on growing. 

Real Estate Investors

Proper tax planning can decrease your tax liability by a large margin. Let us help you maximize your depreciation.

What our Clients Say

von a business owner and real estate investor

Von A.

Business owner & real estate investor

I found SDO CPA when my previous accountant retired. SDO CPA helps me with my complex personal, business, and real estate investments, so I don’t have to worry about it. I highly recommend them.

Paul S.

it Consultant

I’m too busy working with IT clients to worry about my accounting and bookkeeping. SDO CPA saves me from making mistakes, and they handle everything financial-related that I don’t know or have time for.

John C.

Individual & Real Estate Investor

SDO CPA handles tax preparation across my family and real estate investments. I strongly recommend getting a CPA on your team because their diverse knowledge will save your skin many times. SDO CPA is my go-to CPA.

Contact us

Open hours

Monday - Friday : 9 am - 5 pm


214 S Main St, Suite 101C, Duncanville, Texas, 75116, US

We service Duncanville, Cedar Hill, DeSoto, Dallas, Grand Prairie, and clients all over the USA virtually.