Your Taxes Done Right

One less thing to worry about, so you can get back to life.

Welcome To A1 Tax Stop

As Tax Preparers with years of experience, A1 Tax Stop works to maximize your tax savings with professional tax preparation services.

Why work with a tax professional?

For individuals, it’s a great way to ensure you get every last tax credit to which you are entitled — and that you don’t make a mistake that could lead to a fine or penalty. If you’re a small business owner and you want to remain (or become) successful, you need to hire a tax professional sooner rather than later.

See why our clients love us!

Dr. P.

A1 Tax is a very professional and noteworthy Tax corporation. We have been with them for about 7 years. They are very trustworthy and honest. They break down the laws so we can understand them. They are very knowledgeable in their skills and more importantly we are kept up to date on any changes or future medications in the works. That is why they are guaranteed our business
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Rosemarie L.

A1 Tax Stop is hands-down the best place to have your taxes done! They pay attention to details and really listen to your needs. They are up-to-date with the latest tax laws and changes and let you know how they will apply to you. I've had other professionals work on my taxes, but A1 Tax Stop is the only place for me.
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Joy J.

Mr. Mosby works wonders, master of the numbers thank you Fred for all youve done for me I will use you every single year
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Dyane Q.

Fred to me has been my go to guy since my husband died. He has always helped and taken care of my taxes in a professional and caring way. Hes the best.
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Valerie S.

I have been a client of A1 Tax for quite a few years now. Mr. Mosbey is thorough and very knowledgeable. I have always rec'd the best service from this company. I would recommend A1 to anyone who wants a trustworthy tax consultant.
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sean H.

Fred Mosby first pulled me out of many years of tax trouble over 20 years ago ! i have always received the very best especially with complex taxes . Fred Mosby A1 Tax !
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Mandy R.

We reach out to Fred from across the country because he's that good! Always keeps us informed and quick to respond.
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Tati A.

I've been using Mr. Mosbey's tax services for the last 5 years and will continue using his tax services in the future! Every year he is always prompt, responsive, organized, and in tune with all of my needs. He truly listens and solves problems as soon as they come up. His deep knowledge of current tax laws and regulations allows him to get the best possible outcomes for his clients. I cannot emphasize enough how thankful I am for Mr. Mosbey and his outstanding team!
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Karen L.

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Frequently Asked Questions

This firm prepares tax returns for individuals, partnerships, corporations, estates, trusts, and any entities with tax-reporting requirements. Our firm’s seasoned professionals are experts in all areas of taxation including:

  • Individual Returns

  • Payroll Tax Issues

  • Business Returns

  • Sales Tax Returns

  • Rental Income Returns

  • Business Consultation

  • Expatriate Returns

  • Fiduciary & Estate Returns

  • Corporation Returns

  • Bookkeeping

  • Partnership Returns

  • LLC Returns

Our firm offers a full range of planning services including, but not limited to:

  • Individual Tax Planning

  • Business Tax Planning

  • Business Organization

  • Rental Properties

  • Foreclosures and Repossessions

  • Retirement

  • Investments

  • Sales and Exchanges

  • Pension Plans

  • Education Planning

  • Finance & Refinance Planning

  • Home Purchase and Sale Planning

We are here for you twelve months a year, not just during tax season. Whether you have a simple tax question, need advice on the tax implications of a business decision, or want clarification on a government notice, feel free to give us a call.
We maintain a policy of the strictest confidence concerning our clients’ affairs. You can rest assured that no one will learn about your business or tax status – even relatives, associates or friends who might have referred you to us.

Track Your Refund

Track Federal Refund

Check Federal Amended Return Refund

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Get in Touch with A1 Tax Stop

You can count on us for professional, timely and reliable tax and accounting services in California. If you’re ready to get started, just fill out this form and we’ll be in touch.

150 N. Santa Anita Ave., Suite 300, Arcadia, California
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