Welcome to the World of Taxation!
Hello there! If the word "Taxation" makes you want to close your textbook and take a nap, you are not alone. However, in the context of CB1: Business Finance, taxation is actually one of the most important "levers" a company has. Why? Because taxes change the cost of doing business. Understanding how personal and corporate taxes work is the key to understanding why companies choose to borrow money rather than issue shares, or why they pay dividends the way they do. Let's dive in and make sense of it all!
1. The Basics of Personal Taxation
Before we look at big corporations, we need to understand how the individuals who own those corporations (the shareholders) are taxed. Governments usually tax individuals on the money they earn from their investments.
Key Types of Personal Tax
Income Tax: This is taxed on "earned" income (like your salary) but also on "unearned" income like interest from bank accounts or corporate bonds. Don't worry if this seems tricky: just remember that interest is usually treated like a salary for tax purposes.
Dividend Tax: When a company pays out profits to shareholders, that money is called a dividend. Governments often tax dividends differently than regular income to avoid "double taxation" (which we will discuss later).
Capital Gains Tax (CGT): This is a tax on the profit you make when you sell an asset for more than you bought it for.
Example: If you buy a share for £10 and sell it for £15, your "Capital Gain" is £5. You pay CGT on that £5.
Quick Review: The Investor's Perspective
Investors care about their after-tax return. If a bond pays 10% interest but the government takes 40% in tax, the investor only keeps 6%.
Formula: \( \text{After-tax Return} = \text{Pre-tax Return} \times (1 - \text{Tax Rate}) \)
Summary: Personal taxation affects how much "take-home" pay an investor gets from their shares or bonds. This influences which investments they find attractive.
2. Corporate Taxation: The Company’s Perspective
Companies are treated as "legal persons," which means they have to pay their own taxes on the profits they generate. This is known as Corporation Tax.
Taxable Profit vs. Accounting Profit
Did you know that the profit a company shows in its annual report isn't always the amount they pay tax on? The government has specific rules about what can be subtracted from revenue before calculating tax.
Interest is Tax-Deductible: This is the "Golden Rule" of CB1. When a company pays interest on a loan, the government allows them to treat that interest as an expense. This reduces their taxable profit.
Dividends are NOT Tax-Deductible: Dividends are paid out of after-tax profits. They do not reduce the company's tax bill.
The "Pizza Shop" Analogy
Imagine you run a pizza shop.
Scenario A: You borrow money to buy an oven. The interest you pay the bank is like the cost of flour—it's an expense that lowers your profit (and your tax!).
Scenario B: You give a share of your shop to a friend. The "thank you" money (dividend) you pay them doesn't count as an expense in the eyes of the taxman. You pay tax on the full profit first, then give them what's left.
Capital Allowances
In accounting, we use "Depreciation" to spread the cost of a machine over its life. However, tax authorities usually ignore depreciation. Instead, they give Capital Allowances. These are specific tax rules that let a company write off the cost of capital assets (like machinery or vehicles) against their taxable profits.
Key Takeaway: Because interest is tax-deductible and dividends are not, debt is generally a "cheaper" way to finance a business than equity.
3. Systems of Taxation
Governments have different ways of coordinating personal and corporate taxes. The main goal is usually to decide how many times a single pound of profit should be taxed.
The Classical System
In this system, the corporation and the shareholder are treated as completely separate.
1. The company pays Corporation Tax on its profits.
2. The shareholder pays Income Tax on the dividends they receive.
Problem: This results in Double Taxation. The same profit is taxed twice!
The Imputation System
To fix double taxation, some countries use an imputation system. Here, the tax paid by the company is "attached" to the dividend as a tax credit for the shareholder.
Analogy: It's like the company saying to the government, "I already paid some tax on behalf of my shareholder, so don't charge them the full amount again!"
The Partial Imputation / Split-Rate System
These are "middle ground" systems where the government might charge a lower tax rate on profits that are paid out as dividends compared to profits that are kept (retained) in the business.
Key Takeaway: The tax system used in a country heavily influences whether a company prefers to keep its cash or pay it out to shareholders.
4. Taxation and Financing Decisions
This is where the "How corporates are financed" section of your curriculum comes together. Tax acts as a giant subsidy for debt.
The Tax Shield
Because interest is tax-deductible, it creates a Tax Shield. This means the government effectively pays for part of your interest expense.
If a company borrows £1,000 at 10% interest, they owe £100 in interest.
If the tax rate is 20%, that £100 expense saves them £20 in taxes they would have otherwise paid.
The real cost of the interest is only £80.
Memory Aid: The "1 Minus T" Trick
Whenever you see a question about the cost of debt (\(r_d\)) in CB1, always ask: "Is this pre-tax or post-tax?"
The Post-Tax Cost of Debt is: \( r_d \times (1 - T) \), where \( T \) is the corporation tax rate.
Common Mistakes to Avoid
1. Forgetting the Tax Shield: Students often forget to multiply the interest rate by \( (1 - T) \) when calculating the Weighted Average Cost of Capital (WACC).
2. Applying Tax to Dividends: Remember, dividends do NOT get a tax shield at the corporate level. Never apply \( (1 - T) \) to the cost of equity!
3. Confusing Capital Gains with Dividends: Investors might prefer capital gains over dividends if the CGT rate is lower than the dividend tax rate. This affects how a company decides to reward shareholders (e.g., share buybacks vs. dividends).
Summary Checklist
- Personal Tax: Includes Income Tax (on interest) and CGT (on share price increases).
- Corporation Tax: Paid on company profits.
- Interest Deductibility: The massive advantage of debt. Interest reduces taxable profit; dividends do not.
- Double Taxation: When profit is taxed at both the corporate and personal levels (Classical system).
- Tax Shield: The reduction in tax paid due to interest expenses, making debt a cheaper source of finance.
Don't worry if the math feels a bit heavy right now. The most important thing for this chapter is to understand the incentives. If you understand that tax makes debt "cheaper" for a company, you've already mastered the most important concept in this section!