Side Hustle Calculator

Freelance Economics & 1099 Self-Employment Metrology

Side hustle income is subject to dual taxation:

• **

• Schedule C Net Profit Formula**:

Gross Revenue = Hourly Rate × Weekly Hours × 50 Weeks

Total Deductions = Direct Expenses + (Miles Driven × \0.67)

Net Schedule C Profit = Gross Revenue - Total Deductions

• **

• Self-Employment (SE) & Income Tax Formulas**:

SE Tax Base = Net Profit × 0.9235

SE Tax (15.3\%) = SE Tax Base × 0.153

Taxable Income = Net Profit - (SE Tax × 0.50)

Income Tax = Taxable Income × Marginal Tax Rate

• **

• Net Take-Home & True Hourly Wage**:

Net Take-Home Cash = Net Profit - SE Tax - Income Tax

True Net Hourly Wage = Net Take-Home CashAnnual Hours Worked

• **

• Standard Side Hustle Benchmarks**:

• Etsy / Digital: 7,720 Net / Yr

• Rideshare / Delivery: 8,520 Net / Yr

• Freelance Consulting: 12,902 Net / Yr

• Weekend Trades: 15,640 Net / Yr

How to Use This Calculator

Enter your Gross Hourly Billing Rate (e.g. 45 in /hour), Weekly Hours Worked (e.g. 10 in hours/wk), Monthly Business Expenses (Software, Supplies) (e.g. 120 in /month), Annual Business Miles (IRS Mileage Deduction) (e.g. 2000 in miles/yr), Primary Job Marginal Tax Bracket — choose from 12% Bracket (Lower Income Tier), 22% Bracket (Standard Middle Income: 47k–100k), 24% Bracket (Upper Middle: 100k–190k), and Side Hustle Business Benchmark — choose from Custom Side Hustle, Freelance Consulting (10 hrs/wk @ 45/hr, 120/mo exp) → 22.5k Gross | 13,295 Net Take-Home (26.59/hr), Rideshare / Food Delivery (15 hrs/wk @ 22/hr, 8,000 miles) → 16.5k Gross | 8,520 Net Take-Home. Results update instantly as you type — adjust any value to compare scenarios.

The Formula

Formula Reference: Side Hustle Calculator

Input variables:

grossHourlyRateOrBillingDollars — Gross Hourly Billing Rate

weeklyHoursDedicatedInput — Weekly Hours Worked

monthlyBusinessExpensesDollarsInput — Monthly Business Expenses (Software, Supplies)

annualBusinessMilesDrivenInput — Annual Business Miles (IRS Mileage Deduction)

marginalIncomeTaxBracketSelect — Primary Job Marginal Tax Bracket

Computed outputs:

netAnnualTakeHomeProfitDollars — Net Annual Cash in Pocket (After Taxes & Exp)

netMonthlyTakeHomeDollars — Net Monthly Side Income

trueNetHourlyWageDollars — True Take-Home Hourly Wage

grossAnnualRevenueDollars — Gross Annual Revenue

selfEmploymentTaxTotalDollars — IRS Self-Employment Tax (15.3% SE)

Mathematical relationships extracted from calculation logic:

totalHoursAnnual = weeklyHours * 50.0

grossRevenue = hourlyRate * totalHoursAnnual

directExpenses = expMonthly * 12.0

mileageDeduction = miles * 0.67

totalWriteOffs = directExpenses + mileageDeduction

seTaxBase = netProfit * 0.9235

seTax = seTaxBase * 0.153

incomeTax = taxableProfit * marginalTax

totalTaxes = seTax + incomeTax

netMonthlyTakeHome = netAnnualTakeHome / 12.0

Standard: Published population-average reference data (CDC, USDA, DOE)

Worked Example

A freelancer charging 45/hour discovers that after 2,780 in write-offs, 15.3% self-employment tax, and 22% federal income taxes, their true take-home wage is 25.80/hour, prompting them to set aside 30% of each client invoice for quarterly taxes.

Understanding Your Result

This calculation gives a precise result based on the inputs you provided. For practical decisions, consider whether the result changes meaningfully with slight variations in your inputs — if a 5–10% change in input causes a significant output change, gather more precise input data before deciding. Use this tool to quickly compare multiple scenarios side by side.