Free King County, Washington seller net sheet calculator
Closing costs, transfer taxes and who pays what when selling a home in King County. The calculator applies Washington and King County rates for you.
- Median home value
- $811,200
- Transfer tax on $810,000
- $13,478
- Seller costs on $810,000
- About $57,774
- Median property tax bill
- $6,785 a year
- Owner's title policy
- Seller pays
- Population
- 2,262,713
King County transfer tax
On an $810,000 sale in King County, transfer taxes come to $13,478: State real estate excise tax (graduated), Local real estate excise tax (0.50%) and REET technology fee. By custom the seller pays it.
| Tax | Rate | Paid by | On $810,000 |
|---|---|---|---|
| State real estate excise tax (graduated) | 1.1% to $525K; 1.28% to $1.525M; 2.75% to $3.025M; 3% above (marginal) | Seller | $9,423 |
| Local real estate excise tax (0.50%) | 0.50% | Seller | $4,050 |
| REET technology fee | $5 per affidavit | Seller | $5 |
| Sale price | Seller pays | Buyer pays | Total |
|---|---|---|---|
| $250,000 | $4,005 | $0 | $4,005 |
| $500,000 | $8,005 | $0 | $8,005 |
| $810,000 local median value | $13,478 | $0 | $13,478 |
| $1,000,000 | $16,860 | $0 | $16,860 |
Example King County seller net sheet
An $810,000 sale, close to the county's median home value of $811,200, with a 5% commission and a $485,000 mortgage payoff. Seller costs come to about $57,774, or 7.1% of the price.
| Line | Seller |
|---|---|
| Sale price | $810,000 |
| First mortgage payoff | −$485,000 |
| Real estate commission (5%) | −$40,500 |
| State real estate excise tax (graduated) | −$9,423 |
| Local real estate excise tax (0.50%) | −$4,050 |
| REET technology fee | −$5 |
| Owner's title insurance policy | −$2,731 |
| Escrow fee | −$700 |
| Release / satisfaction recording | −$304.50 |
| Wire / courier / payoff processing | −$60 |
| Estimated net before property tax prorations | $267,226.50 |
Who pays what in King County
In King County, the seller customarily pays the owner's title policy. The escrow fee is customarily split between buyer and seller. Closings are usually handled by an escrow company.
Property taxes in King County
The median property tax bill for homeowners in King County is $6,785 a year, about 0.84% of the median home value of $811,200 (Census Bureau American Community Survey, 2019-2023). Taxes here are paid in arrears, so at closing the bill is prorated between buyer and seller to the closing date. Calendar year; halves due Apr 30 and Oct 31. Seller pays through closing for any unpaid portion.
Rates verified 2026-09-29. Home value and tax bill: Census Bureau American Community Survey, 2019–2023. A net sheet is an estimate; final figures come from the escrow company.
King County seller questions
How much is the transfer tax in King County, Washington?
On an $810,000 sale in King County, transfer taxes come to $13,478: State real estate excise tax (graduated), Local real estate excise tax (0.50%) and REET technology fee. By custom the seller pays it.
How much are seller closing costs in King County?
On an $810,000 sale, close to the median home value in King County, with a 5% commission, estimated seller costs are about $57,774 (7.1% of the price). Without commission they are about $17,274. The loan payoff and property tax proration change the final number.
Who pays for title insurance and closing fees in King County?
In King County, the seller customarily pays the owner's title policy. The escrow fee is customarily split between buyer and seller. Closings are usually handled by an escrow company.
How much are property taxes in King County?
The median property tax bill for homeowners in King County is $6,785 a year, about 0.84% of the median home value of $811,200 (Census Bureau American Community Survey, 2019-2023). Taxes here are paid in arrears, so at closing the bill is prorated between buyer and seller to the closing date. Calendar year; halves due Apr 30 and Oct 31. Seller pays through closing for any unpaid portion.
Cities in King County
- Seattle
- Bellevue
- Kent
- Renton
- Federal Way
- Kirkland
- Auburn
- Redmond
- Sammamish
- Shoreline
- Burien
- Bothell
- Issaquah
- SeaTac
- Des Moines
- Maple Valley
- Mercer Island
- Kenmore
- Union Hill-Novelty Hill
- Cottage Lake
- Tukwila
- Covington
- Fairwood
- Bryn Mawr-Skyway
- White Center
- Lakeland North
- Woodinville
- Snoqualmie
- Lake Forest Park
- Enumclaw
- Newcastle
- Lakeland South
- East Renton Highlands
- Lake Morton-Berrydale
- Vashon
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