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Oldenburg Accountants & Advisors

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Grayslake, IL
Oldenburg Accountants & Advisors

I have a boutique CPA firm serving business owners. I help them structure a tax-advantaged deal when buying or selling the business.

I prepare accurate financial statements and meet regularly with business owners to help them interpret the financials. Since 1991, Oldenburg Accountants & Advisors has been committed to providing reliable, high-quality tax, accounting and advisory services to small and medium-sized enterprises (SMEs) in northern Illinois and Chicagoland. Our clients are family-owned businesses and often, multi-generational. Oldenburg Accountants & Advisors a small, boutique CPA firm where the owner, Sue Oldenburg, is directly involved with every business owner client. We have a reputation for sustaining long-term relationships with our clients. We work proactively with SME business owners to help them interpret and act upon the financial indicators of their businesses so they can make decisions based on reality instead of operating in the dark. We specialize in assisting our clients to:
--Track profitability by job, customer, product, department or location
--Forecast and improve cash flow
--Benchmark against their peers in their industry
--Determine critical success factors for their particular business
--Establish and measure key performance indicators
--Present financial information to banks to win loans

Owner and founder Susan A. Oldenburg is an experienced business owner with more than twenty-five years in the public accounting industry. As both a CPA (Certified Public Accountant) and EA (Enrolled Agent), Sue has a comprehensive knowledge of business planning and monitoring as well as a specialized knowledge of taxation. Under both designations, she has unlimited practice rights and is unrestricted to which taxpayers can be represented before the IRS. When she is not at the office, you can find her reading, listening to music, cooking, spending time with her cat Lizzi and relaxing with friends and family in Door County.

10/28/2026

Simple mistakes can prevent you from reaching retirement goals. The biggest error is not saving enough. If you expect to maintain your current lifestyle in retirement — which could last three decades or more — you’ll need to accumulate a surprisingly large sum. We can help set up a savings plan you’ll stick to. Call us at (847) 263-0303.

10/27/2026

Interim financial reports produced monthly or quarterly can provide your business with more timely information than year-end financial statements. You can use this data to spot emerging problems and opportunities. Compare each interim report with your budget and financial reporting from the same period of the previous year. Account for seasonality, but don’t focus solely on revenue. Higher labor costs or excessive discounting may increase sales while profit margins shrink. Unexpected results in interim reports don’t necessarily signal a crisis, but you should investigate them. Call us at (847) 263-0303 for help setting up interim reports and interpreting them.

10/26/2026

We’re more than just tax and accounting professionals. We’re your partners in business growth. Beyond preparing your tax returns and keeping your books in order, we can help you improve cash flow, safely plan for expansion and make smarter financial decisions. Let’s talk about how our advisory services can strengthen your strategic planning, streamline operations, and uncover new opportunities for long-term growth and success. Call us today at (847) 263-0303 to schedule a consultation.

10/22/2026

If you want to sell your business, receiving the purchase price over time in an installment sale may allow you to spread your gain — and the related tax — over several years. The buyer typically makes a down payment and issues a note for the balance. Each principal payment generally includes a tax-free return of basis and taxable gain; interest on the note is taxed separately as ordinary income. This arrangement may also expand the pool of buyers or help you obtain a higher price. But depreciation recapture may be taxable upfront, and you assume the risk that the buyer won’t pay. Contact us at (847) 263-0303 to discuss the pros and cons and determine the optimal deal structure for your situation.

10/21/2026

Do you donate thousands of dollars to charity each year? Do you miss out on the itemized charitable deduction because you don’t have enough total itemized deductions to exceed your standard deduction? Consider “bunching” most of your donations into alternating years. By combining two years of gifts into one year, you may push your itemized deductions above your standard deduction and get a greater tax benefit from your charitable giving — even with the new deduction for nonitemizers starting in 2026. Contact us at (847) 263-0303 for help determining if you can benefit from this strategy.

10/20/2026

AI can help your business meet high customer service expectations without overburdening employees. It’s particularly effective for routine tasks. These include answering customers’ basic questions anytime on your website or social media accounts. AI can also help analyze and route customer requests to the right employees, and work behind the scenes to give staffers context and suggest next steps. Of course, AI is only as effective as how it’s trained and used. Your business should regularly test its systems, restrict access to confidential data and establish escalation rules. Call us at (847) 263-0303 for help calculating possible savings and finding affordable solutions.

10/19/2026

Did you celebrate your 73rd birthday in 2026? If you have money in an IRA, 401(k), SEP or SIMPLE plan, you generally must take your first required minimum distribution (RMD) by this Dec. 31 (or, potentially, by April 1 of next year). RMDs are annual withdrawals of specified amounts based on your age and the account’s value at the end of the last tax year. For more information about managing retirement income, contact us at (847) 263-0303.

10/15/2026

Limited partner status in a business generally offers valuable benefits, including liability protection and self-employment tax advantages. But it may also limit your ability to deduct partnership losses under the passive activity loss rules. Passive losses are usually deductible only against passive income unless you materially participate in the business. Limited partners face a tougher standard than general partners. Certain work, such as investor activities or tasks not customarily performed by owners, may not count toward material participation. Other limitations may also apply. Before investing in a limited partnership or claiming losses, contact us at (847) 263-0303 to discuss the tax implications.

10/14/2026

When employees change jobs, they often leave behind balances in a previous employer’s 401(k) plan. If your plan accepts rollovers, making it easier for eligible employees to move those balances into your plan can boost participation and engagement. Rollovers may also increase plan assets, which could help you negotiate lower plan services and fees. Meanwhile, providing departing and former employees with rollover instructions may reduce abandoned accounts and plan administration costs. Call us at (847) 263-0303 for guidance on managing your employer-sponsored retirement plan effectively.

10/13/2026

In many businesses, the sales department tends to have a markedly higher turnover rate than other departments. If this has been the case at yours, don’t give up hope. There are ways to address the challenge. Begin with improvements to your hiring and onboarding processes. Welcome new salespeople warmly, provide ample training and consider appointing mentors to help them get comfortable. Of course, compensation matters as well. Carefully investigate the feasibility of retention bonuses and financial rewards for maintaining or increasing sales. Also, consider forming a sales leadership team that can contribute to strategic planning. Contact us at (847) 263-0303 for assistance.

Address

100 N Atkinson Road, Suite 106
Grayslake, IL
60030

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm

Website

http://www.oaa-cpa.com/

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