Helping You Keep More of What You Make!

Book of Numbers was founded on the idea that you want to, and should be able to, understand your financial information whether that is your tax return or a financial statement for your small business. And you want to do things the right way.

24/7 Support

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100% Customer Satisfaction

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Unlimited Tax Advice

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Why Choose Us

We take pride in helping you with your needs.

At Book of Numbers, we take pride in providing you with a complete range of services to help your business and your personal finances to grow. But we don't stop there! We believe proactive tax planning is one of the keys to keeping more of what you make. Proactive tax planning means scouring your income and expenses for every available deduction, credit, loophole, and opportunity. And without “aggressive” strategies, “gray areas” or “red flags.”

Are you an employee looking to pay less tax and start building wealth?
Are you a self-employed business owner or professional looking to increase tax flow and slash your tax bill?
Are you a seasoned investor wanting to spring to a lower tax bracket?
Are you a real estate professional or investor?
Do you have kids to put through college?

Learn More About Us

Service provided

All The Services That We Provide

To The Clients

Personal Income Tax

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Personal Income Tax

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Personal Income Tax

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Personal Income Tax

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Why Choose Us

We are your Profit & Growth experts!

We start with a plan! We begin with examining your previous tax returns for the missed opportunities and mistakes that could be costing you thousands. We then put together a tax plan, help you implement it, and then help you maintain it! We then prepare your tax returns and show you your savings by following our suggestions in your tax plan!

20+

Years of Experience

20k

Happy Clients

15k

Client Served

100%

Client Satisfaction

Customer Feedback

What Our Customers Think About Us

Great Results, Good Value, High Integrity - Doug has provided high level accounting services for a major client of mine for the past two years. The work is technically challenging, complex and time sensitive, and he has done it well. He has also suggested time saving process improvement recommendations which benefitted our client.

Steve Brueggeman, CPA

Sleepy Hollow, IL

Steve Brueggeman, CPA

Sleepy Hollow, IL

Doug provided me with great service and timely results. His attention to detail was great. He asks good questions and has great follow-through.

Dan L.

Algonquin, IL

I found Doug’s help, guidance, knowledge and patience with me during this period very refreshing. I would highly recommend Doug to anyone seeking business financial help, guidance or professional accounting service. Doug Guard is truly the professional person that will fulfill your needs.

Dan Reed

President of My Earth Angel Store Inc.

Doug’s integrity is outstanding! By giving me specific instruction and careful review of my figures, he was able to accurately reduce my Federal tax burden to just $845.This is a net savings of $3,977! I gladly signed the check for his fee, which was less than half of what I had paid to file the same schedules in previous years. Thank you Doug and your Book of Numbers!

Dale Welk

Lake in the Hills, IL

Doug provided me with great service and timely results. His attention to detail was great. He asks good questions and has great follow-through.

Dan L.

Algonquin, IL

Doug is a man of very high integrity. His attention to detail and pursuit excellence is second to none. What sets Doug apart is that he is a highly talented individual who genuinely cares about the people he serves. His great skill and great heart make him extremely valuable to Willow Creek.

Mike G.

Doug is great to work with - knowledgeable, flexible and proactive

Sara V.D.

Dan Reed

President of My Earth Angel Store Inc.

Doug is a very detail oriented worker who gives 110% in everything he does. Doug's knowledge and experience were very helpful when faced with difficult decisions. With Doug on your team, you can focus on running your business by the numbers.

Jeff L.

“I highly recommend Doug. We worked on several projects together and his expertise was invaluable. He was able to interpret, for non-financial people, the best practices for reporting and gathering of information. His understanding and patience made him a wonderful person to work with and an asset to the team.