Qualifying for a Mortgage With Your Side Business as a Firefighter

Your 24/48 shift schedule gives you 10+ days off per month — and you've turned those days into a thriving landscaping operation. Last year you netted $35,000 from the business on top of your $108,000 firefighter salary. That's $143,000 total household income, and you want every dollar to count toward your mortgage.

Here's how to make it happen.

The 2-Year Rule: Plan Ahead

The most important thing to know: lenders require 2 full years of tax returns to include self-employment or business income. This isn't negotiable with A-lenders (banks and prime monolines).

Timeline for a firefighter planning to buy:

If you've been running your side business for 2+ years but only recently started reporting it on your taxes — you're back to square one. Only documented, tax-reported income counts.

Back to the complete firefighter mortgage guide

Sole Proprietorship vs. Incorporation

Most firefighter side businesses start as sole proprietorships (T2125 on your personal tax return). This is actually better for mortgage qualification because:

1. Income flows directly to your personal tax return
2. Lenders see it on your T1 General — no corporate returns needed
3. Calculation is straightforward: 2-year average of net business income

When incorporation hurts: If you incorporated your side business for tax reasons, lenders now need your T2 corporate return AND your personal T4/dividend income from the corporation. If you're paying yourself a low salary and leaving profits in the corp, lenders won't count the retained earnings.

Strategy: If you're buying in the next 2 years and your business is incorporated, consider paying yourself a higher salary from the corporation during that period to boost your personal qualifying income.

What Expenses Can You Write Off (And How They Affect Qualification)

Here's the catch: business expenses reduce your net income, which reduces your qualifying income.

Example:

• Gross business revenue: $55,000
• Expenses (truck, equipment, insurance, fuel): -$20,000
• Net business income: $35,000
• Qualifying income from business: $35,000

You might feel like you're earning $55,000 from the business, but lenders use the $35,000 net figure. Be strategic about expense claims in the 2 years before applying — every dollar of expense reduces your mortgage by roughly $4.

Combining Fire Salary + Business Income

At $148,000 qualifying income, you can carry approximately $665,000-$690,000 in mortgage financing (after stress test, no other debts). That's $185,000 more than qualifying on base salary alone.

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