Deduction
Constitutional deductions
B&O Tax deduction · RCW 82.04.4286 · enacted 1935
Details
- Citation
- RCW 82.04.4286
- Study reference
- E1125-1
- Tax type
- B&O Tax
- Preference type
- Deduction
- Category
- Interstate Commerce
- Year enacted
- 1935
- End date
- None scheduled
Fiscal impact (2024 study estimates)
- Revenue if repealed — local ($M)
- FY 2024: 0 · FY 2025: 0 · FY 2026: 0 · FY 2027: 0
- Revenue if repealed — state ($M)
- FY 2024: 0 · FY 2025: 0 · FY 2026: 0 · FY 2027: 0
- Taxpayer savings — local ($M)
- FY 2024: 0 · FY 2025: 0 · FY 2026: 0 · FY 2027: 0
- Taxpayer savings — state ($M)
- FY 2024: 1676 · FY 2025: 1745 · FY 2026: 1816 · FY 2027: 1892
CTI = confidential taxpayer information · D = unable to disclose
From the 2024 DOR Tax Exemption Study
82.04.4286 - Constitutional deductions Description The Washington and U.S. Constitutions prohibit the taxation of certain activities. Amounts received from these activities are deductible from gross income when computing B&O tax. This includes, but is not limited to: - Sales of tangible personal property received by the purchaser in another state. - Sales by businesses that do not have substantial nexus with Washington. - Sales of tangible personal property in export commerce to foreign countries. - Sales by Indian tribes or tribal members in Indian country. Purpose To avoid violating state and federal laws. Taxpayer ($ in millions): savings FY 2024 FY 2025 FY 2026 FY 2027 State Taxes $1,676.000 $1,745.000 $1,816.000 $1,892.000 Local Taxes $0.000 $0.000 $0.000 $0.000 Repeal of Repealing this deduction would not increase revenues as the U.S. and Washington exemption Constitutions prohibit the taxation of certain activities. Potential ($ in millions): revenue gains FY 2024 FY 2025 FY 2026 FY 2027 from full repeal State Taxes $0.000 $0.000 $0.000 $0.000 Local Taxes $0.000 $0.000 $0.000 $0.000 Assumptions - No revenue would be collected if this deduction was repealed. - Growth rate mir
Does this apply to you?
This is reference data from the 2024 study — not advice, and 2025–26 legislation may have changed it. Three ways to go deeper: