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For simplicity, let’s assume that I earn \$100 working full-time and pay \$50 in taxes each year. This leaves me with \$50 in my pocket.

Now let’s say that in addition to my income, I start a YouTube channel reviewing perishable widgets costing \$1.

Ignoring any other costs and expenses, if I spent \$5 reviewing 5 widgets this year and have \$45 left in my pocket, assuming any income the channel earns me will also be taxed at 50%, how much money will I have in my pocket after tax season if the channel earns me:

1) \$0

2) \$5

3) \$10

4) \$25

Thanks!

In: 2

1. \$45. If your Deductions exceed your revenue for tax reasons you can’t use that to offset income from another source, you can carry forward the -\$5 into the next year though to offset youtube profit in 2022.
2. \$50. The business made nothing so as far as taxes are concerned it didn’t happen
3. \$52.50. You’ve made an effective income of \$105 so that gets taxed at 50%
4. \$60. As in 3 You’ve made an effective income of \$120 so that gets taxed at 50%

The correct way to do this is to calculate the business taxable income. Then add that to your existing income and apply your tax rate. So lets assume the tax rate is a constant 50% and that there’s no other tax deductions or credits.

So example 1, \$100 in employment income, 50% tax rate means tax payable of \$50 and after tax income of \$50.

1. \$0 in business revenue with \$5 in expenses means a taxable income (loss) of -\$5.

2. This example has \$5 of revenue and \$5 of expenses for a business income of \$0.

3. I’ll skip the details and just say that 10-5 is \$5 of business income.