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Freelance Tax Calculator — Massachusetts 2026

Estimate SE tax + federal + Massachusetts state income tax. Includes deductible half of SE tax.

📌 Massachusetts has a flat 5% income tax rate for most income.

📊 Your Massachusetts Tax Estimate

Annual Freelance Income ($)

Business Deductions ($)

Filing Status

Other W-2 Income ($)

SE Tax (15.3%)

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Federal Income Tax

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Massachusetts State Tax (5%)

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Total Tax Bill

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Effective Tax Rate
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Quarterly Payment

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💡 Set aside —/month for taxes. Also consider a SEP-IRA to reduce your taxable income — calculate your max contribution.

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