Idaho vs. Washington Closing Costs: The State Line
Idaho charges no real estate transfer tax. Washington's graduated excise tax runs about 1.60% in Spokane, Spokane Valley, and Liberty Lake.
Coeur d’Alene sits about 30 miles from Spokane on I-90, and for a lot of buyers in this market, “which side of the state line” is a live question — not just for commute or schools, but for what closing actually costs. The single biggest difference between an Idaho closing and a Washington closing in this area isn’t the loan itself. It’s a tax that only exists on one side of the border.
Idaho: no real estate transfer tax, period
Idaho is one of roughly a dozen states with no state or county real estate transfer tax. An Idaho closing statement — whether the property is in Coeur d’Alene, Post Falls, Hayden, Rathdrum, or Sandpoint — simply has no transfer-tax line item on it at all.
That doesn’t mean an Idaho closing is free of costs. Idaho buyers and sellers still pay the usual cast of characters: recording fees, title insurance, appraisal fees, and prepaid property taxes and insurance held in escrow. But the one line item that can run into the thousands of dollars on the Washington side of this market simply doesn’t exist in Idaho.
Washington: a graduated excise tax, plus a local add-on
Washington takes the opposite approach. The state real estate excise tax (REET) is graduated based on the sale price:
- 1.10% on the portion of the price up to $525,000
- 1.28% on the portion from $525,000.01 to $1,525,000
- 2.75% on the portion from $1,525,000.01 to $3,025,000
- 3.00% on any portion above $3,025,000
Those thresholds are in effect from January 1, 2023 through December 31, 2026, so they apply to the current market as-is.
On top of the state rate, local jurisdictions can add their own excise tax. Spokane, Spokane Valley, and Liberty Lake — the three Washington cities in this service area — each add a 0.50% local rate under the schedule that took effect March 1, 2026. Combined, a typical sale in any of the three carries an effective 1.60% excise tax.
Who pays it: the seller is normally responsible for Washington’s excise tax, though the buyer becomes liable if the seller doesn’t pay. So if you’re buying in Spokane, this usually isn’t a cost you’re budgeting for directly — but if you’re selling a Washington property to buy in Idaho, it’s a real number to plan around.
What this looks like in dollars
On a $500,000 sale in Spokane, Spokane Valley, or Liberty Lake, a combined 1.60% excise tax works out to $8,000 — paid by the seller in the typical case. The same $500,000 sale in Coeur d’Alene or Post Falls carries no equivalent charge at all. That’s the single largest closing-cost difference between the two sides of this market, and it’s worth knowing whether you’re the one selling, the one buying, or both — for example, selling a home in Spokane Valley to buy one in Hayden.
It’s not the only difference, but it’s the biggest one
A few other things stay constant no matter which side of the line you’re on. Federal disclosure timing — a Loan Estimate within three business days of application, a Closing Disclosure at least three business days before closing — is a TRID requirement and applies identically in both states. And whoever originates your loan has to be licensed in the state where the property sits, regardless of where you or they happen to live; a purchase in Spokane needs a Washington-licensed originator, a purchase in Coeur d’Alene needs an Idaho-licensed one.
Idaho property taxes run on a different calendar, too
It’s not just the transfer tax that differs — Idaho’s property tax calendar has its own rhythm that affects escrow closer to closing and afterward. Idaho county assessors mail assessment notices by the first Monday in June, and county treasurers mail most tax bills by the fourth Monday in November, with the first half due December 20 and the second half due June 20. Because the bills land late in the year, an autumn escrow analysis on an Idaho file should be checked against the new bill rather than assumed to match the prior year’s figure — a detail that catches Idaho buyers off guard more often than the transfer-tax difference does.
Idaho also offers a homeowner’s exemption that Washington doesn’t have an equivalent to: 50% of the value of an owner-occupied primary residence, plus up to one acre of land, is exempt from property tax, capped at $125,000. It’s applied for through the county assessor and lasts until ownership changes or the home stops being your primary residence — it doesn’t apply to second homes or rentals, which is worth knowing given how much second-home and lakefront demand this market sees around Lake Coeur d’Alene.
Run your actual numbers
Excise tax, transfer tax, title, escrow, prepaids — the honest total depends on your specific price point, which side of the line you’re on, and whether you’re buying, selling, or both. A rule of thumb is a starting point, not a number to budget against.