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For many Canadian farm families, farming is not the only source of income. It is common for one spouse to work off the farm or for a farmer to maintain outside employment while building or sustaining the operation. However, when farm losses occur in a year where there is significant off-farm income, special tax rules may limit how much of those losses can be deducted.

These are known as the Restricted Farm Loss (RFL) rules.

What is a farm loss?

A farm loss occurs when your deductible farm expenses exceed your farm income for the year. Under normal circumstances, business losses can be deducted against other sources of income, such as employment income, investment income, or rental income.

However, farming has its own specific rules when it is not considered your chief source of income.

Chief source of income test

The key question the Canada Revenue Agency (CRA) looks at is whether farming is your chief source of income, or at least part of a combination of farming and another source of income.

If farming is your primary occupation and profit is a reasonable expectation, you can generally deduct the full farm loss against other income.

If farming is more of a secondary activity and your main income comes from employment or another business, your loss may be restricted.

How the restricted farm loss limit works

When the Restricted Farm Loss rules apply, the deductible loss is capped.

The formula currently allows:

  • The first $2,500 of farm loss, plus
  • 50% of the next $30,000

This results in a maximum deductible loss of $17,500 per year.

Any remaining unused farm loss is not lost — it becomes a Restricted Farm Loss carryforward, which can only be applied against future farm income.

Example

Suppose a taxpayer earns:

  • $95,000 in employment income
  • Reports a $60,000 farm loss

If farming is not their chief source of income, they cannot deduct the full $60,000 against employment income. Instead, they would be limited to a maximum deduction of $17,500 for the year.

The remaining $42,500 would be carried forward and can only be used to offset future farming profits.

The graphic above illustrates this difference between the actual farm loss and the maximum deductible amount under restricted rules.

Why this rule exists

The intent behind the restriction is to prevent high-income earners from using farming primarily as a tax shelter. The CRA expects farming to be conducted in a commercial manner with a reasonable expectation of profit.

Factors that may be reviewed include:

  • Time devoted to farming
  • History of profits or losses
  • Business planning and marketing efforts
  • Capital investment in equipment and land
  • Scale and seriousness of operations

Planning considerations

If you have substantial off-farm income, consider:

  • Maintaining detailed records showing commercial intent
  • Developing a written farm business plan
  • Monitoring repeated losses year over year
  • Reviewing income-splitting and structural options
  • Consulting a tax professional familiar with agricultural taxation

If your farm is transitioning toward becoming your primary income source, documentation and clear evidence of growth are important.

Restricted Farm Loss rules can significantly limit the immediate tax benefit of farm losses when there is substantial off-farm income involved. Understanding whether your farm qualifies as your chief source of income is critical to accurate tax reporting and long-term planning.

Because these rules are fact-specific and can be complex, working with a knowledgeable local tax preparer who understands agricultural operations can help ensure compliance and proper planning for future years.