The Washington real estate transfer tax calculator estimates the Real Estate Excise Tax (REET) owed when a property changes hands, applying the state’s graduated price tiers plus your local rate. Since the state portion is marginal, this tool computes each tier correctly rather than using a single flat rate.
How it works
Washington’s state REET is graduated, meaning each rate applies only to the portion of the sale price within its band:
- 1.10% on the portion up to $525,000
- 1.28% on the portion from $525,000 to $1,525,000
- 2.75% on the portion from $1,525,000 to $3,025,000
- 3.00% on the portion above $3,025,000
A local REET (commonly 0.25% to 0.50%) is then added as a flat percentage of the full price:
state REET = sum over tiers of (portion in tier x tier rate)
local REET = sale price x local rate
total = state REET + local REET
Exempt transfers — gifts, inheritances, and spousal transfers with no consideration — owe no excise tax, though an affidavit is usually still filed.
Example
A $700,000 home sale with a 0.50% local rate:
- First $525,000 at 1.10%:
$5,775 - Next $175,000 (525k–700k) at 1.28%:
$2,240 - State REET:
$8,015 - Local REET:
$700,000 x 0.005 = $3,500 - Total REET: $11,515 (about 1.65% of the price).
Tips and notes
- Marginal, not flat. Higher-value homes do not pay the top rate on the whole price — only on the portion above each threshold.
- Seller usually pays. REET is customarily the seller’s cost, due at recording.
- Check the local rate. Local REET varies by city and county; confirm yours before relying on the figure.
- Claim exemptions properly. Even exempt transfers generally require a REET affidavit filed with the county treasurer.