Anton Prokopenko, MBA, CPA, CFP®, EA

Financial & Tax Advisor

Meet your advisor

Anton Prokopenko, MBA, CPA, CFP®, EA

MBA · Business strategy
CPA · Tax & accounting
CFP® certification · Financial planning
EA · Enrolled to practice before the IRS

Anton specializes in retirement planning, business tax strategy, and personalized financial advice designed to reduce taxes and support long-term financial goals. Whether you’re a solo entrepreneur, a growing practice, or planning for life after work, he delivers clear, actionable guidance tailored to your situation.

Most advisors specialize in either taxes or investments. Anton holds the credentials and the responsibility for both, which is what lets Sansone coordinate the two sides of your financial life under a single strategy.

“If your CPA and your advisor don’t talk to each other, you’re paying for two opinions that might contradict each other. I’d rather give you one full opinion.”

Anton Prokopenko, MBA, CPA, CFP®, EA

Planning in Algonquin
Local focus

Tax preparation and tax planning for Algonquin business owners and families.

Between the Randall Road corridor and the older downtown along the Fox River, Algonquin has plenty of owner-run businesses. For an owner, the business tax return and the household tax return are really one plan, and most of the expensive mistakes happen where the two meet.

Paying yourself from an S corporation. If you work in your S corporation, you need to take a reasonable W-2 wage through payroll before taking distributions. Moving money from the business account to your personal account isn’t payroll, and a wage that’s too low is a common audit issue.

Choosing a retirement plan. A SEP-IRA, a solo 401(k), and a 401(k) with employees each fit a different owner. The right one depends on your wages, whether you have staff, and how much you want to save, and the contribution reduces taxable business income.

Estimated taxes. Owners don’t have withholding doing the work for them. A fall tax projection sets your fourth-quarter estimate so April doesn’t bring a surprise or an underpayment penalty.

A hypothetical example: an owner with no employees runs an S corporation and pays herself a modest wage. Raising the wage increases payroll tax, but it also raises how much the business can contribute to her 401(k). We set the wage and the retirement plan together, because each one changes the other.

We handle your business tax return, your personal tax return, and your investments in one relationship. See our planning for business owners.

Service area
Where we work

Serving Algonquin and the surrounding communities.

Based in Crystal Lake, working with clients across McHenry County and northern Kane County, in person at our Crystal Lake office or virtually.

Common questions
FAQ

Algonquin questions, answered.

Q.01

How far is your office from Algonquin?

Our office is at 850 S McHenry Ave, Suite D, in Crystal Lake, about 10 to 15 minutes from downtown Algonquin. Take Pyott Road north to Rakow Road, then McHenry Avenue. From the Randall Road side, take Randall north to McHenry Avenue. Virtual meetings are available too.

Q.02

Is moving money from my business account to my personal account the same as paying myself?

For an S corporation, no. That transfer is a distribution, and owners who work in the business also need a reasonable W-2 wage run through payroll. For a sole proprietorship or single-member LLC taxed as one, a transfer is simply a draw, and you’re taxed on the business profit either way.

Q.03

Which retirement plan makes sense for a small business owner?

It depends on your wages, whether you have employees, and how much you want to save. A SEP-IRA is simple, a solo 401(k) usually allows more for an owner with no staff, and a 401(k) for a team adds rules about covering employees. Set-up deadlines differ, so start the conversation before year-end.

Q.04

Does a new LLC mean a new tax return?

Not always. A single-member LLC is usually reported on your personal tax return unless you elect S corporation treatment. An LLC with two or more owners files a partnership tax return by default.

Q.05

When should my business become an S corporation?

When the payroll tax savings outweigh the added costs: running payroll, filing a separate business tax return, and paying yourself a reasonable wage. There is no single profit number that works for everyone, so we run both versions before you elect.

CPA + financial advisor. One person.

Talk to Anton before your next big financial decision.

A free 30-minute call. No prep needed, just bring your questions.

Office hours · Mon–Fri
8:00 AM – 4:30 PM
850 S McHenry Ave, Ste D
Crystal Lake, IL 60014