Important Disclaimer

Key Changes Effective January, 2026:

  • Exemption increases from $3,000,000 to $3,076,000
  • Tax rates increase significantly for larger estates
  • Annual CPI adjustments to exemption begin January 1, 2026

Note: For deaths in 2026, the Washington State Department of Revenue sets the estate tax filing threshold and exclusion amount at $3,076,000 per individual. This exemption, which applies to both residents and non-residents with WA property, is not portable between spouses and does not include an automatic, 6 million combined exemption.

This calculator provides estimates based on Washington State estate tax rates and is for informational purposes only. Actual estate tax calculations may involve additional factors, deductions, and complexities not considered in this simplified calculator. Please consult with a qualified estate planning attorney or tax professional for accurate tax planning and compliance advice.