What are the opening hours?

Monday 7:30am - 5pm Tuesday 7:30am - 5pm Wednesday 7:30am - 5pm Thursday 7:30am - 5pm Friday 7:30am - 5pm

Hayes & Slunaker, LLP

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United States
Brentwood, MO
Hayes & Slunaker, LLP

Hayes & Slunaker, LLP (Formally known as Martz & Wilson, LLP) is a local, experienced accounting firm dedicated to providing comprehensive and affordable.

We offer a broad range of services for business owners, executives, and independent professionals Normal hours listed above. Tax season hours are extended considerably.

05/25/2026

This Memorial Day, Hayes & Slunaker, LLP honors and remembers the brave men and women who made the ultimate sacrifice for our country. 🇺🇸
We are grateful for your service and sacrifice—today and always.

05/10/2026

Happy Mother’s Day from all of us at Hayes & Slunaker, LLP 💐
Today we celebrate the strength, dedication, and love that mothers bring to everything they do—at home, at work, and beyond. Thank you for all that you do!

04/15/2026

Dear Valued Clients,

We wanted to let you know that our office is now closed for the day. Rest assured, we have made sure that all client needs have been addressed prior to closing.

If you have any immediate needs, please email our office staff and we will get back to you as soon as possible.

We will be back in the office tomorrow, Thursday, at 8:00 AM and ready to assist you.

Thank you, and we look forward to continuing to service you then. 🥳

03/20/2026

Our Valued Clients,

This is a friendly reminder that we must receive all of your tax information by TODAY, March 20, 2026 in order to complete your return by the April 15th filing deadline.

Any information we receive after today, and extension will be filed.

If you have any questions or concerns, please contact our office at (314) 646-1040.

03/16/2026

Our Valued Clients,

This is a friendly reminder that we must receive all of your tax information by March 20, 2026 in order to complete your return by the April 15th deadline.

If we receive your information after this date, an extension will be filed.

Also, please note that Partnership and S Corporation income tax returns are due today!

If you have any questions or concerns, please call our office at (314) 646-1040.

01/01/2026

🎉✨ New year, new name, same trusted team! ✨🎉

As we ring in the New Year, we’re excited to officially welcome it as Hayes & Slunaker, LLP. While our name has changed, our calculators are still sharp and our commitment to you remains exactly the same. 😉📊

Please note: Our office will be closed on New Year’s Day. We’ll reopen Monday 1/5/26 at 8:00 a.m., refreshed and ready to kick off the year.

Thank you for your continued trust and support—we look forward to working with you in the year ahead. Wishing you a happy, healthy, and prosperous New Year! 🥂

12/25/2025

From all of us at Hayes & Slunaker, LLP, we wish you and your loved ones a very Merry Christmas and a joyous holiday season!

This time of year reminds us how grateful we are for the trust and support of our clients and community. Whether you’re celebrating with family, friends, or simply enjoying a well-earned rest, we hope your holidays are filled with peace, laughter, and plenty of cheer. 🎁☕❄️

Please note: Our office will be closed for the holiday today and tomorrow, and we’ll reopen Monday, December 29th at 8:00 a.m.

Merry Christmas and Happy Holidays from your team at Hayes & Slunaker, LLP! 🎅

12/12/2025

We’re proud to share that Martz & Wilson, LLP is now Hayes + Slunaker, Certified Public Accountants. While our name has changed, our dedication to providing accurate, insightful, and personalized accounting and tax services remains exactly the same. This rebrand reflects our continued growth and commitment to serving our clients with the highest level of professionalism and care. You’ll still be working with the same trusted team—just under a new name that better represents who we are today and the future we’re building together.

11/27/2025

🦃 Happy Thanksgiving! May your only math this weekend be figuring out how many leftovers fit in the fridge. 😉🍗

Our office is closed today and tomorrow—we’ll be back Monday, December 1st at 8:00 a.m.

11/11/2025

This Veterans Day, we honor those who have worn the uniform with courage, strength, and selflessness. From all of us at Martz & Wilson, LLP, we thank you for your service and for the freedoms your sacrifice has made possible. ❤️ 🤍 💙

Address

712 Hanley Industrial Court
Brentwood, MO
63144

Opening Hours

Monday	7:30am - 5pm
Tuesday	7:30am - 5pm
Wednesday	7:30am - 5pm
Thursday	7:30am - 5pm
Friday	7:30am - 5pm

Telephone

+13146461040

Website

http://www.hsstlcpa.com/, https://www.linkedin.com/company/hayes-and-slunaker-llp/

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