October 15th Is Coming Fast — What You Need to Know Before the Tax Extension Deadline

The October 15th tax deadline is right around the corner, and for many taxpayers, that date brings a mix of relief and stress. Whether you filed an extension back in April or are just realizing you still need to get your 2023 taxes done, there’s good news — you still have time, and Millhouse Accounting is here to help.

What the October 15th Deadline Means

If you filed for an automatic six-month extension earlier this year, October 15th is your final day to submit your completed return. This extension gave you more time to file, not more time to pay, which means any unpaid tax balances from April may already have accrued penalties or interest. Still, getting your return filed before the 15th helps stop additional penalties from adding up.

At Millhouse Accounting, we work with clients across Green Bay and De Pere who want to make sure they meet this deadline with accuracy and confidence. Whether it’s gathering missing documents, double-checking deductions, or ensuring every credit is claimed, our goal is to make the final stretch of tax season as smooth as possible.

What If You Didn’t File an Extension?

Even if you didn’t file an extension back in April, it’s not too late to get caught up. You can still file your return after the deadline — and the sooner you do, the better. Filing late may trigger additional penalties, but delaying further only makes things worse. If you’re unsure where to start or haven’t filed in several years, we can help you sort through it all. Our team can guide you step by step to get back in good standing with the IRS and Wisconsin Department of Revenue.

It’s a situation we see often in Green Bay and surrounding areas — busy professionals who thought they’d “get around to it” and suddenly find themselves out of time. That’s where professional tax preparation makes all the difference.

Avoid Common Last-Minute Filing Mistakes

When time is short, accuracy matters more than ever. Some of the most common mistakes we see during the October rush include missing W-2s or 1099s, forgetting to claim estimated payments, selecting the wrong filing status, or overlooking valuable credits like the Child Tax Credit or education credits. These errors can lead to delays or even unwanted notices from the IRS.

Working with a professional ensures your return is complete and accurate the first time. Our team at Millhouse Accounting reviews each return carefully to catch deductions you might have missed and confirm that every form and schedule lines up correctly. Reliable tax preparation means peace of mind when you finally hit that “submit” button.

The Benefits of Working with a Local CPA Firm

Choosing a local firm matters. When you work with Millhouse Accounting, you’re not calling a national hotline or uploading sensitive data into an unknown portal. You’re partnering with a trusted team in De Pere that knows Wisconsin tax law and serves neighbors throughout the Green Bay area. We’re here year-round — not just during filing season — to answer questions, review IRS letters, or help with planning for next year.

Our clients appreciate that we offer more than just tax filing. We provide ongoing guidance for small business owners, real estate investors, and families who want to plan ahead. Whether you need payroll assistance, S-Corp consultation, or year-end tax projections, our goal is to keep your financial life running smoothly.

Don’t Wait — The Deadline Is Almost Here

If you haven’t filed yet, there’s still time — but don’t wait much longer. Contact Millhouse Accounting today to schedule your appointment before the October 15th deadline. Even if you’ve fallen behind or didn’t file an extension, we can help you get back on track quickly and confidently.

Call or visit our office in De Pere to get started. Our tax preparation experts are ready to make this final push toward the deadline simple and stress-free — so you can move forward knowing your taxes are done right.