Corporate vs Personal Analyzer
Discover how much pre-tax revenue you save by strategically expensing items through your corporation instead of paying yourself a fully-taxed personal salary.
Personal Tax Profile
Your base salary determines the marginal tax rate applied to any additional income required to purchase personal items. Calculations use 2024 progressive brackets.
Estimated Tax Breakdown
Corporate Tax Profile
Corporate tax applies to the portion of an item that cannot be expensed. Active businesses pay lower rates, while holding companies pay high rates on passive income.
Expense Calculator
Adjust expense % to see how personal vs corporate tax friction changes.
Total Pre-Tax Req (Personal)
The exact gross salary the corporation must pay you, on top of your base salary, to leave you with enough after-tax cash to buy all items.
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Total Pre-Tax Req (Corp)
The revenue the corporation must earn to buy the items directly. Expensed portions are bought with 100% pre-tax money. Non-expensed portions require extra revenue to cover corporate taxes.
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Total Corporate Revenue Saved
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Suggested Expenses & Optimizations
Click any item to add it directly to your calculator to see exact rules and calculations.
The Math & Logic of Expensing
Understanding tax friction and why every entrepreneur should optimize deductions.
1. The Problem: "Tax Friction"
When you own a corporation, the money it earns belongs to the corporation, not you. To spend that money on personal items (like your mortgage, groceries, or a personal cell phone), you must move the money out of the corporation and into your personal hands.
This movement triggers a "toll booth" known as personal income tax. By the time the money hits your personal bank account, it has shrunk significantly due to tax friction.
2. The Personal Route (Grossing Up)
Let's say you want to buy a $1,000 laptop personally, and your personal marginal tax rate is 50%.
- Your corporation CANNOT just pay you $1,000. If it does, you lose $500 to personal taxes and only have $500 left to buy the laptop.
- Instead, the corporation must "gross up" your salary. It must pay you $2,000.
- You pay 50% tax ($1,000) to the government.
- You are left with exactly $1,000 to buy the laptop.
3. The Corporate Route (Pre-Tax Dollars)
Now, what if that laptop is used entirely for business?
- The corporation buys the laptop directly for $1,000.
- Because it is a 100% business expense, it reduces the corporation's taxable income by $1,000.
- The corporation pays exactly $0 in tax on that $1,000 of revenue because it was expensed.
4. What if it's only partially for business?
Many items, like your cell phone or car, are used for both business and personal reasons. The CRA requires you to split this usage (e.g., 50% business, 50% personal).
In the calculator, the "Business Exp. %" slider handles this math. The business portion (50%) is paid with tax-free corporate dollars. The personal portion (50%) is not deductible for the corporation, meaning the corporation must pay corporate tax on the revenue needed to fund that portion. This is why Holding Companies (which pay ~50% tax) see less benefit on partial-expenses than Active Businesses (which pay ~12% tax).
5. Bringing It All Together (The Synthesis)
Tax friction is the enemy of wealth accumulation. Every time money crosses the border from your corporation to your personal bank account, the government takes a significant toll.
The Core Strategy: If an expense is legitimately required for your business (like your cell phone, out-of-town travel, or specialized equipment), always pay for it using corporate pre-tax dollars.
The Proration Rule: For mixed-use items (like a vehicle or home internet), carefully calculate the business percentage. Expensing the business portion through the corporation saves you the personal tax markup, while the personal portion must be funded with after-tax dollars or dividends.
The Grand Takeaway: A dollar saved in tax is worth more than a dollar of new revenue. By optimizing your deductions, you lower your "Gross Required Revenue"—meaning you don't have to work as hard, or sell as much, just to maintain your standard of living.
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