What to Expect When Working with a Tax Preparer (And How to Avoid Common Mistakes)

Filing taxes is just about submitting a few documents and getting a refund. In reality, there’s a process behind it - and understanding that process can help you avoid mistakes, delays, and missed opportunities.

1. Filing isn’t just about income - it’s about benefits too

One of the most common misconceptions is that if you made “too little,” you don’t need to file.

That’s not accurate. Filing your taxes is how you access benefits like GST/HST credits and other government programs. Even students, teens, and individuals with low or irregular income should often file to avoid missing out.

2. Getting your documents ready matters more than you think

Before filing, having your documents organized makes a big difference. This typically includes your income slips, receipts, and any relevant records tied to your situation.

Common examples include:

• T4 or T4A slips

• Tuition slips

• Rental income and expenses

• Childcare and medical receipts

• RRSP contribution slips

Filing with incomplete information can lead to delays or reassessments later.

3. What actually happens after you submit your documents

Many people expect their return to be filed right away. In reality, your tax preparer reviews everything before submission.

This includes checking for missing information, asking follow-up questions, and making sure all numbers are accurate. This step is critical - it’s where many issues are caught early.

4. Why your tax preparer may ask for CRA access and prior-year documents

Two things that significantly improve accuracy are access to your CRA My Account and your previous year’s Notice of Assessment or T1.

With CRA access, your preparer can:

• retrieve missing slips

• verify official data

• check carryforward balances like RRSP room or tuition

Your prior-year documents help confirm what carries into the current return and ensure nothing is missed.

It’s completely normal for a tax preparer to request these - this is part of doing a proper and accurate review.

5. Why tax preparers ask so many questions

Clients are often surprised by how many questions come up. This is not random - it’s part of the process.

Questions help to:

• confirm all income is reported

• identify eligible credits and deductions

• understand life changes such as moving, marital status, or new employment

• clarify anything that doesn’t match

Even small details can impact your return. Asking questions helps prevent errors and missed opportunities.

6. Why your refund might change before filing

Many people expect a specific refund amount, and are surprised when it changes.

When your tax preparer reviews your information, they may adjust numbers based on complete and verified data. This can either increase or decrease your refund - but ensures it is accurate and compliant with CRA.

Changes at this stage are normal and help avoid reassessments or unexpected balances later.

Final Thought

A proper tax return is not just about submitting numbers - it’s about accuracy, completeness, and understanding your situation as a whole.

The more organized and transparent the process is, the smoother your experience will be and the fewer surprises you’ll face after filing.