Tax estimate for freelance Plumbers in Iowa: SE tax (15.3%) + federal + Iowa state income tax (3%), with plumber-specific deductions.
📌 Iowa transitioned to a flat 3.8% income tax in 2025, down from progressive rates as high as 8.53%.
📊 Your Iowa Tax Estimate as a Plumber
SE Tax (15.3%)
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Federal Income Tax
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Iowa State Tax (3%)
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Total Tax Bill
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Effective Rate
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Quarterly Payment
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Top Plumber Tax Deductions in Iowa
✓ Tools, equipment, and power tools (Section 179)
✓ Work vehicle mileage or actual vehicle costs
✓ Plumbing licenses and renewal fees
✓ General liability insurance
✓ Uniforms and safety gear
✓ Supplies used for client jobs
✓ Home office for billing and scheduling
💡 Plumber tip: Plumbers can deduct vehicle expenses two ways: standard mileage (70 cents/mile) or actual costs. Run both calculations annually to find the bigger deduction.