How to File Back Taxes for Business

November 19, 2024
Gurdeep Sangha
how to file back taxes

Need to file back taxes for your business? Here are some things you should be aware of when filing back taxes.

Table of Contents

What does it mean to file back taxes?

Filing back taxes refers to the process of submitting tax returns for previous years that were not filed or were filed inaccurately. When individuals or businesses fail to file their taxes by the deadline, they accumulate “back taxes,” which are essentially unpaid tax returns from prior years.

Back taxes are any tax returns that have not been submitted to the government by the filing deadline for a specific tax year. These can occur for various reasons, such as:

  • Forgetting to file
  • Financial hardship making it difficult to pay owed taxes
  • Misunderstanding tax obligations, such as assuming no taxes are due if you earned below a certain amount.

Compliance with tax laws

Filing back taxes ensures you meet your legal obligations and avoid serious consequences. Tax authorities like the Canada Revenue Agency (CRA) can impose heavy penalties, interest charges, and even legal actions such as liens or wage garnishments for unfiled taxes.

By addressing back taxes, you take control of your financial standing and demonstrate a commitment to compliance, reducing the risk of future complications.

Stop penalties and interest accumulation

When taxes are not filed, penalties and interest begin to accumulate immediately, increasing the total amount owed.

Filing back taxes as soon as possible helps halt this process, preventing further financial burden. Even if you cannot pay the full amount owed, filing is a critical step to minimize additional charges and avoid further escalation by tax authorities.

Avoid audits and legal escalation

Failing to file taxes can trigger audits or investigations by tax authorities, which can be stressful and time-consuming. Filing back taxes proactively reduces the likelihood of being flagged for additional scrutiny and demonstrates your willingness to comply with the law.

In some cases, tax authorities offer relief programs for those who voluntarily resolve unfiled taxes.

Improve financing standing

Up-to-date tax filings are often required for financial transactions, such as applying for a mortgage, securing a business loan, or refinancing debt.

Financial institutions view tax compliance as a sign of reliability. Filing back taxes can help improve your creditworthiness and open up opportunities that might otherwise be unavailable.

Gain peace of mind

Beyond the legal and financial benefits, filing back taxes provides emotional relief. Unfiled taxes can create stress and uncertainty, especially when facing potential actions from tax authorities.

By filing your late tax return, you resolve lingering issues, reduce anxiety, and regain control over your financial life.

Get the help you need to file your back taxes with confidence!

Our team or professional accountants and bookkeepers at Sansar Solutions can file your taxes and clean up your bookkeeping before filing for just 1-flat rate.

Steps to prepare for filing back taxes

Filing back taxes requires a systematic approach to ensure accuracy, minimize potential penalties, and maximize any refunds or credits you may be eligible for.

Below is a thorough explanation of each step to prepare effectively:

1. Gather necessary documentation

Before filing back taxes, you need to collect all the relevant documents for each unfiled tax year. Missing or incomplete information can delay the process or result in errors.

Here are the key documents to assemble:

Income statements

  • For individuals, this includes T4 slips (Canada) or W-2/1099 forms (U.S.) provided by your employer, as well as any additional income sources such as rental income, dividends, or freelance earnings.

  • For corporations, gather T1 or T2 forms, which reflect corporate income and expenses. You’ll also need financial statements for each year, such as balance sheets and profit-and-loss statements.

Expense receipts

  • Collect receipts for any deductible expenses, such as business expenses, medical costs, charitable donations, childcare expenses, or education-related costs. These receipts are crucial for reducing taxable income and calculating credits.

  • If you’ve lost receipts, review bank statements or credit card transactions to reconstruct your records as accurately as possible.

Previous tax filings

  • If you filed some returns but not all, retrieve copies of those previous tax filings to ensure continuity and accuracy in reporting. For instance, unused deductions or carry-forward amounts from previous years may still apply.

  • You can request copies of past returns from the CRA, IRS, or your tax preparer if you don’t have them on hand.

2. Review your financial records

Take time to thoroughly review your financial records for the missing tax years. This step ensures that your income and expenses are reported accurately and that you don’t miss any deductions or credits.

  • Bank Statements and Credit Card Records: These can be used to cross-reference income deposits, expense payments, or missing receipts.

  • Investment or Savings Account Statements: Include dividends, interest income, and any capital gains or losses.

  • Payroll Records: If you’re self-employed, these records can validate the income reported and justify any employment-related deductions.


Carefully reconciling all your financial activity for each unfiled year will reduce the risk of discrepancies that could trigger an audit or require corrections later.

3. Consult with a tax professional (if necessary)

If your situation is complex or involves multiple years of unfiled taxes, consulting a tax professional can be invaluable. They bring expertise to navigate potential challenges and ensure compliance with tax laws.

  • Identify Deductions and Credits: Professionals can uncover deductions or credits you might overlook, such as those for dependents, education, or small-business expenses.

  • Help with Complex Tax Scenarios: If you have income from multiple sources, international tax obligations, or significant financial changes, a professional can clarify what’s required.

  • Negotiate with Tax Authorities: Tax professionals can assist in negotiating payment plans, reducing penalties, or accessing tax relief programs like the CRA’s Voluntary Disclosures Program (VDP) or the IRS’s Fresh Start Initiative.

  • Ensure Accuracy: They can review your filings for completeness and accuracy, reducing the likelihood of audits or additional penalties.

4. Additional considerations

  • Obtain Tax Forms: Download the specific tax forms for the years you need to file. These can usually be found on the CRA or IRS website.

  • Understand Filing deadlines: Although you’re filing late, knowing the rules for back-year filings (e.g., refund deadlines or statute of limitations) is important.

  • Plan for Payment: If you owe taxes, determine how you’ll pay. Even partial payments can reduce interest and penalties. Tax authorities often allow payment plans for those unable to pay the full amount immediately.

Payment options for paying back taxes

If you owe back taxes, settling your debt promptly is essential to avoid escalating penalties and interest. However, the tax authorities provide various payment options to help taxpayers manage their obligations.

Here is a detailed breakdown of the available options:

Lump-sum payments

  • Paying your back taxes in full with a lump sum is the fastest way to resolve your tax debt. This approach stops interest and penalties from accumulating further and provides immediate resolution with the Canada Revenue Agency (CRA) or the IRS.

  • Lump-sum payments are ideal if you have sufficient savings, can liquidate assets, or secure financing to cover the amount owed.

Installment agreements

  • If a lump-sum payment is not feasible, you can negotiate an installment plan with the tax authority to pay your debt over time.

  • How It Works: Payments are made in smaller, manageable amounts over a set period, often including interest. Installment agreements make it easier to stay compliant without causing financial strain.

  • CRA’s Flexible Payment Arrangements: The CRA allows taxpayers to propose a schedule that aligns with their ability to pay.

Financial hardship provisions

  • If you’re experiencing significant financial hardship, the CRA or IRS may grant relief options, such as temporarily deferring payments or reducing penalties.

  • These provisions are usually available to taxpayers who can demonstrate that paying their taxes would cause undue hardship, such as being unable to cover basic living expenses.

  • Programs like the CRA’s Taxpayer Relief Program or the IRS’s Offer in Compromise (OIC) may allow for partial forgiveness of the debt under specific conditions.

Can I file my corporate taxes late in Canada?

Yes, you can file your business taxes late in Canada, but there are important implications and steps to consider. The Canada Revenue Agency (CRA) allows businesses to submit overdue tax returns; however, filing late may result in penalties, interest, and other potential consequences.

RELATED: Unfiled Corporate Tax Returns: Consequences & Solutions

How many years back can I file my taxes in Canada?

In Canada, you can file your taxes for previous years without a strict time limit. However, there are important nuances regarding filing late, claiming refunds, and meeting obligations, depending on whether you owe taxes or are owed a refund.

Filing past returns: no official time limit

The Canada Revenue Agency (CRA) allows you to file tax returns for any number of previous years. Whether you missed filing one year or several, you can submit returns to bring your tax account up to date.

a. If You Owe Taxes

  • There is no limit to how far back you can file returns if you owe taxes, but penalties and interest will accumulate from the original due date.

  • It’s crucial to file as soon as possible to stop further penalties and interest from increasing.


b. If You Expect a Refund

  • Refund claims for prior tax years are limited to 10 calendar years. For example, in 2024, you can only claim refunds for tax years from 2014 onwards. Returns filed after this period won’t result in a refund, even if you overpaid taxes.


c. For Tax Credits and Benefits

  • Filing late may affect your eligibility for certain tax credits (e.g., GST/HST credits, Canada Child Benefit). While the CRA allows late applications, back payments may be limited to specific timeframes depending on the program.

Consequences of not filing back taxes

a. Accumulated Penalties and Interest

  • Late-filing penalties and daily compound interest apply to any balance owing. These financial consequences increase over time and can become significant if multiple years are unfiled.


b. Loss of Benefits and Credits

  • Delayed filing can disrupt access to benefits like the Canada Child Benefit (CCB) or Old Age Security (OAS) since eligibility depends on filing your annual returns.

  • Filing back taxes ensures you receive retroactive payments for benefits you missed, though limits may apply.


c. CRA Enforcement Actions

  • If you fail to file, the CRA may issue a Notice of Assessment based on estimated income, which may not reflect deductions or credits you’re entitled to.

  • In extreme cases, the CRA can take collection actions, such as garnishing wages or freezing bank accounts.

Can I file two years or multiple years tax returns together in Canada?

Yes, you can file two or multiple years of tax returns together in Canada. The Canada Revenue Agency (CRA) allows taxpayers to catch up on unfiled returns by submitting them at the same time, whether for consecutive years or gaps across different periods.

Each year’s return must be completed separately using the corresponding forms or tax software for that specific year, as tax laws, rates, and credits vary annually. Filing multiple years together can help resolve outstanding balances, restore access to benefits like the Canada Child Benefit or GST/HST credits, and avoid enforcement actions.

While the CRA processes returns individually, filing them together ensures your tax records are up to date. If you expect refunds, note that claims are limited to the past 10 years.

To minimize penalties and interest for late filings, consider contacting the CRA or a tax professional, and explore programs like the Voluntary Disclosures Program if you want to reduce penalties for overdue returns.

Preparing to file your business back taxes in Canada

Preparing to file your business back taxes in Canada can feel overwhelming, but Sansar Solutions is here to help. From gathering your financial records and identifying missed returns to navigating CRA requirements and exploring payment options, we simplify the process to get your business back on track.

Whether you owe taxes, are owed refunds, or need guidance with relief programs like the Voluntary Disclosures Program, our experienced team ensures accuracy and compliance every step of the way.

Let our team at Sansar Solutions handle the complexities so you can focus on running your business with peace of mind.

Common questions about filing business back taxes in Canada

An outsourced bookkeeper manages a company’s financial records, including transactions, expenses, and revenues, from an external position. They handle tasks such as reconciling bank statements, preparing financial statements, managing accounts payable and receivable, and ensuring accurate and up-to-date financial reporting, all without being an in-house employee.

Yes, you can file multiple years of returns together. Each year’s tax return must be completed separately using the appropriate forms or software for that specific year. Filing them at the same time ensures your records are updated.

You’ll need:

  • Financial statements (income and expenses).
  • Tax slips (e.g., T4s for payroll, T5s for dividends).
  • Previous assessments (if available).
  • Receipts for deductions or credits.
  • Organizing these records ensures accuracy when filing.

Log in to your CRA My Business Account or contact the CRA directly to check for outstanding returns. The CRA may also send notices if they believe you have unfiled taxes.

Yes, you can still claim deductions and tax credits for past returns, provided you have the necessary documentation. This includes business expenses, capital cost allowances, and GST/HST input tax credits.

Filing back taxes does not automatically trigger an audit. However, submitting multiple years at once or discrepancies in your returns may attract CRA scrutiny. Filing accurate and complete returns reduces this risk.

Sansar Solutions provides expert guidance to simplify the process of filing back taxes, from gathering documents to submitting returns accurately. We can help negotiate payment plans with the CRA and explore relief programs to minimize penalties. 

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