7 MistakES YOu're Making with Small Business Tax Preparation (and How to Fix Them)

Most small business owners don’t get in trouble with the IRS because they’re reckless—it’s usually small, repeated mistakes that add up over time.

Common issues include mixing personal and business funds, messy bookkeeping, missing quarterly estimates, misclassifying workers, overlooking legal deductions, filing late, and relying only on DIY software with no real strategy behind it.

At Lawson Financial Group LLC, we help you clean up your records, stay ahead of deadlines, and build a tax plan that actually fits your business.

7 Tax Mistakes (and How to Fix Each One)

Mixing personal and business money

How to fix it: Open a separate business bank account and credit/debit card, and use them only for business. If you use the wrong card by mistake, reimburse the correct account and make a note immediately so your books stay clean.

Messy or irregular recordkeeping

How to fix it: Use bookkeeping software and update it on a regular schedule—at least weekly instead of once a year. Scan or upload receipts as you go so you aren’t digging through emails and paper when it’s time to file. 

Missing quarterly estimated tax payments

How to fix it: Put the quarterly due dates on your calendar and treat them like any other bill. Set aside a percentage of each payment into a separate “tax” savings account so the money is ready when you need to make your estimated payments.

Misclassifying workers (employee vs. contractor)

How to fix it: Review IRS guidelines and pay attention to how much control you have over when, where, and how someone works. When you’re unsure, talk to a tax professional before you decide whether to issue a W‑2 or a 1099. 

Overlooking legal deductions—or trying to deduct personal spending

How to fix it: Keep detailed logs for key areas like mileage, home office, and industry-specific expenses, and only deduct costs that are truly “ordinary and necessary” for your business. If you’re not sure whether something qualifies, ask a professional before you claim it. 

Filing or paying taxes late

How to fix it: Track your filing and payment deadlines and set reminders well ahead of time. If you need more time to file, request an extension—but still pay as much as you reasonably can by the original due date to reduce penalties and interest. 

Relying only on DIY tax software

How to fix it: Use tax software as a tool, not your whole strategy. As your business grows and your situation becomes more complex, schedule time with a tax professional who can review your numbers, spot issues early, and help you plan ahead—not just react in April. 

Let Lawson Financial Group Handle the Heavy Lifting

You didn’t start your business to spend weekends buried in receipts and tax forms. At Lawson Financial Group LLC, we specialize in helping small business owners separate personal and business finances, clean up their books, stay compliant, and keep more of what they earn.

If you’re ready to stop worrying about tax mistakes and get back to focusing on your customers, reach out to Lawson Financial Group LLC and let us take the tax burden off your shoulders.

Most small business owners don’t get in trouble with the IRS because they’re reckless—it’s usually small, repeated mistakes that add up over time.

Common issues include mixing personal and business funds, messy bookkeeping, missing quarterly estimates, misclassifying workers, overlooking legal deductions, filing late, and relying only on DIY software with no real strategy behind it.

At Lawson Financial Group LLC, we help you clean up your records, stay ahead of deadlines, and build a tax plan that actually fits your business.