09/03/2026
One of the easiest ways for a small business owner to get into trouble at tax time is assuming that every dollar sitting in the business checking account is available to spend.
It isn't necessarily.
If you're self-employed or own a business, taxes may not be automatically withheld the way they are from a traditional paycheck. That means part of the money coming into your business may eventually need to go toward estimated taxes.
A better system is to make taxes part of your normal financial routine:
Keep your books current. You need to know your actual profit, not just revenue or the bank balance.
Set tax money aside regularly. A separate savings account can help keep money reserved for taxes from getting mixed into your normal operating cash.
Review the numbers during the year. If your business is growing faster than expected, last year's assumptions may no longer make sense.
Don't wait until tax season to discover the problem. Learning in September that you need to reserve more cash gives you time to adjust. Learning in March that you owe a large amount gives you far fewer options.
Quarterly estimated taxes aren't really about writing four checks.
They're about keeping enough visibility into your business throughout the year that taxes don't become a surprise.