How Colorado’s June Sales Tax Filing Deadline Affects Your Monthly Books

June isn’t just the start of summer—it’s also an important month for sales tax compliance if you run a retail business in Colorado. If you’re a monthly filer, the Colorado sales tax deadline is coming up fast, and missing it can lead to penalties, interest, and stress you don’t need.

Whether you own a boutique in Monument, a shop in Colorado Springs, or you sell online across the state, having your books in order is key to filing on time and accurately.

Why I Believe Monthly Bookkeeping Matters for Sales Tax Filing

If your business collects sales tax, the Colorado Department of Revenue likely requires you to file returns monthly, quarterly, or annually. Many retail businesses fall under the monthly filing schedule—which means returns are due by the 20th of each month for the previous month’s sales.

Through my monthly bookkeeping service, I help small business owners keep:

• Total taxable sales accurate

• Tax liability correctly reported

• Proper documentation ready in case of an audit

When you’re busy running a business, I understand how easy it is to overlook the little details—until they become big issues. That’s why consistent, professional bookkeeping is essential.

What You Need to Know About the June Deadline

The June 2025 Colorado sales tax return is due by Thursday, June 20, 2025 for monthly filers. You can submit it online through the Colorado Revenue Online portal, or I can help make sure everything is filed correctly and on time.

Important things to remember:

• If you sell in multiple jurisdictions, sales must be reported by location

• Online sales can trigger different tax rates based on customer addresses

• Your POS or eCommerce system needs to match your books

I make sure these details are taken care of, so you can focus on your customers.

Don’t Let Tax Time Sneak Up on You

If you’re a retailer, you already know how fast things move—new inventory, special promotions, and multiple payment systems can all make bookkeeping more complex.

That’s where I come in. When you work with me, I help you stay compliant with the Colorado sales tax deadline, while also giving you clear, organized books that are audit-ready at any time.

Let’s Get Your June Sales Tax Filing in Order

I work with business owners across Monument, Colorado Springs, and the Front Range to take the stress out of sales tax and monthly bookkeeping. If your books need a little (or a lot) of attention before the June deadline, I’m here to help.

📅 Contact me today to schedule your free consultation, and let’s make sure you file on time and with confidence.