Common Tax Filing Mistakes That Delay Refunds (and How to Avoid Them)

Tax season is in full swing, and for many filers, the biggest question isn’t if they’ll get a refund — it’s when. One of the most common reasons refunds are delayed isn’t the IRS backlog; it’s simple filing mistakes. 
 
The good news? Most of these issues are completely avoidable with the right preparation and guidance. Below are the most common tax filing mistakes we see at Freedom Tax & Accounting, along with tips to help you file accurately and avoid unnecessary delays. 
 
1. Filing Before All Tax Documents Arrive 
It’s tempting to file as soon as you receive your first W-2 — but filing too early can backfire. 
Commonly missed forms include: 
- Additional W-2s from job changes 
- 1099-INT or 1099-DIV forms from banks or investments 
- 1099-NEC or 1099-K forms for side income 
- Brokerage statements that arrive later in February 
How to avoid it: 
Wait until all income documents are received before filing. Filing an amended return takes extra time and often delays refunds. 
 
2. Incorrect Personal Information 
Small errors can cause big slowdowns. 
Common issues include: 
- Misspelled names 
- Incorrect Social Security numbers 
- Filing under the wrong name after marriage or divorce 
How to avoid it: 
Double-check that names and Social Security numbers match Social Security records exactly. 
 
3. Bank Account Errors for Direct Deposit 
Direct deposit is the fastest way to receive a refund — unless the banking information is wrong. 
Mistakes include: 
- Transposed numbers 
- Closed accounts 
- Using someone else’s account 
How to avoid it: 
Confirm routing and account numbers before filing. Even one incorrect digit can delay your refund for weeks. 
 
4. Claiming Credits Incorrectly 
Credits like the Child Tax Credit or Child & Dependent Care Credit are valuable — but they’re also closely reviewed by the IRS. 
Common mistakes include: 
- Claiming a dependent who no longer qualifies 
- Incorrect custody or dependency claims 
- Mismatched information with another filer 
How to avoid it: 
Review dependency rules carefully and communicate clearly if multiple parties could claim the same dependent. 
 
5. Math Errors and Mismatched Income 
Even small math errors can trigger IRS review. 
This includes: 
- Income reported differently than IRS records 
- Rounding mistakes 
- Forgetting side income 
How to avoid it: 
Ensure all income reported matches official forms exactly. 
 
6. Small Business Oversights 
Small business owners face extra complexity during tax season. 
Common mistakes include: 
- Missing estimated tax payments 
- Incomplete expense records 
- Incorrect mileage logs 
- Forgetting 1099-NEC filings for contractors 
How to avoid it: 
Stay organized throughout the year and work with a professional who understands small business tax rules. 
 
7. Forgetting to Sign or Authorize the Return 
It may sound simple, but unsigned or unauthorized returns are still one of the most common delays. 
How to avoid it: 
Make sure all required signatures or electronic authorizations are completed before submission. 
Final Thoughts 
Most tax delays aren’t caused by complicated tax laws — they’re caused by small, preventable mistakes. Filing accurately the first time helps ensure faster refunds, fewer IRS notices, and peace of mind. 
 
At Freedom Tax & Accounting, we focus on getting your return right the first time. If you’re unsure about your documents, credits, or filing status, we’re here to help. 
Now scheduling tax appointments for the 2026 tax season. 
Contact Freedom Tax & Accounting to file with confidence.