It’s not always necessary for freelancers and self-employed individuals to calculate their estimated taxes manually. Using an
estimated tax calculator to find your quarterly tax payments is an efficient way to avoid miscalculations.
However, you’ll need to do a bit of estimating before using any online calculator, so it’s worth knowing how the entire process works. Let’s use a real-life example to better understand this. Say you’re a
freelance consultant who needs to make federal estimated tax payments.
You expect to earn $80,000 in self-employment income for the year. You are a single filer and don’t have any other sources of income. To calculate your quarterly taxes, you first estimate your adjusted gross income (AGI).
AGI is calculated by subtracting above-the-line deductions from estimated income. For the year, you expect to deduct $3,000 for health insurance premiums and $4,000 for a traditional IRA contribution.
- AGI is $80,000 - $3,000 - $4,000 = $73,000
Next, you subtract the standard deduction for single filers from your AGI to find your taxable income. The standard deduction for single filers in 2024 is $14,600. Your adjusted taxable income is:
- $73,000 - $14,600 = $58,400
Using the
2024 income tax brackets, you calculate your estimated income tax. Your taxable income falls within the 12% tax bracket, so your estimated income tax is:
- $11,600 * 0.10 = $1,160
- ($58,400 - $11,600) * 0.12 = $46,800 * 0.12 = $5,616
- Total income tax is $1,160 + $5,616 = $6,776
In addition to income tax, you also need to pay self-employment tax on your 1099 income. The self-employment tax rate is 15.3%.
Self-employment tax is generally calculated on 92.35% of net earnings.
To find net earnings, you need to deduct all ordinary and necessary expenses from your gross income. You can use a
1099 tax calculator to easily do this. For this example, let’s say you have $5,000 in deductible business expenses.
- $80,000 - $5,000 = $75,000
- $75,000 * 0.9235 * 0.153 ≈ $10,597.2
So, your total tax liability is the sum of income tax and self-employment tax:
- $6,776 + $10,597.2 ≈ $17,373.2
To find estimated quarterly tax payments, you divide your total tax liability by four:
- Estimated quarterly payment = $17,373.2 / 4 ≈ $4,343.3
This is a basic example of how quarterly taxes are calculated. In some cases, freelancers may be eligible for the
QBID (Qualified Business Income Deduction), tax credits or may have unique expenses that may require more calculations. For this reason, it is always a good idea to rely on a professional or use an online calculator to do the math for you.