Washington HOA special assessment rules come from two places at once: your association’s governing documents and one of two state statutes. A board can impose a special assessment for unexpected expenses or major projects that regular dues don’t cover, but only if it follows the notice, approval, and allocation requirements that apply to your community. Get the procedure wrong, and the assessment may not be enforceable.
Which Washington Statute Governs Your HOA
Washington has two laws regulating homeowners associations, and they don’t apply the same way to every community. The Homeowners’ Association Act (RCW 64.38) covers most HOAs created before July 1, 2018. The Washington Uniform Common Interest Ownership Act, or WUCIOA (RCW 64.90), applies automatically to communities created on or after that date. Older HOAs can vote to opt into WUCIOA, and some have.
The distinction matters because WUCIOA imposes stricter transparency and approval requirements on special assessments than the older statute does. If you’re not sure which law applies, check when your HOA was formed and look through board meeting minutes for any resolution opting into WUCIOA. Your board or management company should be able to confirm.
Where the Board’s Authority Comes From
A board’s power to levy a special assessment flows from two sources: the association’s governing documents and state law. The governing documents include the declaration of covenants, conditions, and restrictions (the CC&Rs), the bylaws, and the articles of incorporation. Together they spell out the board’s powers, any caps on assessment amounts, and the procedures required before an assessment takes effect.
When the governing documents are silent, state law fills the gap. RCW 64.38.020 grants HOAs the power to adopt budgets and impose assessments on owners for common expenses.1Washington State Legislature. RCW 64.38.020 – Association Powers WUCIOA provides a parallel but more detailed financial framework for associations under RCW 64.90. Where the governing documents conflict with the statute, the statute wins, especially where it gives homeowners more protection than the CC&Rs do.
Notice and Approval the Board Must Follow
Before a special assessment can be imposed, the board has to satisfy the notice and approval procedures in both the governing documents and whichever state statute applies. This is where most disputes start.
Meeting Notice
Under RCW 64.38.035, HOAs must give written notice of board meetings at least 14 days in advance. When a special assessment is on the agenda, the notice should identify what the assessment is for and an estimated cost, so owners have time to review the proposal and show up prepared. Associations under WUCIOA face more detailed disclosure requirements up front, including a budget breakdown and written justification for the assessment, under RCW 64.90.445.
Skipping or short-cutting notice is one of the strongest grounds for challenging an assessment later. If your board gave only a few days’ warning, or didn’t disclose the purpose of the meeting, that alone can make the assessment unenforceable.
Owner Approval Thresholds
Approval requirements vary by community. Some governing documents give the board authority to impose assessments up to a set dollar amount without a homeowner vote. Others require owner approval for anything beyond regular dues. Under WUCIOA (RCW 64.90.525), associations must get owner approval for special assessments that push total annual assessments more than a set percentage above the existing budget. Many CC&Rs go further and require a supermajority vote for large assessments.
Read your own governing documents for the specific threshold. If the CC&Rs require a two-thirds vote and the board approved the assessment on its own, that’s a procedural defect worth raising.
How the Amount You Owe Is Calculated
What you actually pay depends on how the governing documents allocate costs. The most common methods are allocation by unit size or by ownership percentage, though some smaller HOAs simply split costs equally.
For communities under WUCIOA, RCW 64.90.480 ties assessments to each unit’s allocated interest, typically based on square footage or property value as defined in the declaration. A 2,000-square-foot unit would owe roughly twice what a 1,000-square-foot unit pays if the allocation is proportional to size. Flat-rate assessments, where every owner pays the same regardless of unit size, are less common under WUCIOA and more likely to face challenges as inequitable.
When a project benefits only part of the community, costs may be allocated only to those owners. Replacing a roof on one building in a multi-building complex, for example, might be assessed only against owners in that building. Washington courts have held that assessments must have a reasonable basis and cannot be used to generate a surplus beyond the actual cost of the project.
Payment Terms, Late Fees, and Liens
Once an assessment is approved, the board sets the payment terms. That may be a lump sum by a specific date or installments spread over months. Under WUCIOA, the board must provide a written statement showing the total owed, the due date, and any installment options. If installments carry interest or administrative fees, those terms must be disclosed before the first payment comes due.
Timing usually depends on the underlying expense. An emergency repair like a burst water main may require payment within 30 to 60 days, while a planned capital improvement such as repaving a parking lot might allow a six- or twelve-month schedule. Some boards offer a small discount for paying in full early.
If you fall behind, RCW 64.38.020 allows the HOA to charge reasonable late fees and interest, provided the governing documents authorize it.1Washington State Legislature. RCW 64.38.020 – Association Powers Washington doesn’t set a specific cap on HOA late fees, so what counts as reasonable depends on the amount owed and the terms in your CC&Rs. A $25 late fee on a $5,000 assessment is hard to argue with; a $500 fee on the same balance starts to look punitive.
If the balance stays unpaid, the HOA can record a lien against your property under RCW 64.90.485 for WUCIOA communities, or through authority in the governing documents for older HOAs. A lien attaches to your title and will show up in a title search, which makes it difficult to sell or refinance until the debt is satisfied. In extreme cases, the association can pursue foreclosure under RCW 64.90.505 after following strict notice and cure procedures. Foreclosure is a last resort, but Washington does allow nonjudicial foreclosure of HOA liens in certain circumstances.
If an assessment lands at a bad time financially, ask the board about a payment plan before you fall behind. Most boards prefer installments to chasing delinquent accounts through liens and collections.
How to Challenge an Assessment You Think Is Improper
If you believe an assessment was improperly imposed, there are several ways to push back. Start with the least expensive option.
Request a Board Hearing
Under RCW 64.38.050, you can request a hearing before the HOA board to present your objections. This is the cheapest and fastest route. Come prepared with specifics: the procedural step the board skipped, the CC&R provision it violated, or the factual basis for your claim that the assessment is unreasonable. Vague complaints about the amount rarely accomplish anything at this stage. A documented objection pointing to a missed notice deadline or an unauthorized vote can.
Mediation or Arbitration
Many Washington HOA governing documents include mandatory mediation or arbitration clauses. Mediation brings in a neutral third party to help both sides reach a voluntary agreement. Arbitration is more formal, and the arbitrator’s decision may be binding depending on what your CC&Rs say. Washington’s Uniform Arbitration Act (RCW 7.04A) governs those proceedings. Both are cheaper and faster than court.
Litigation
If informal options fail, you can file a lawsuit challenging the assessment. Homeowners typically argue that the board failed to follow required procedures, that the amount was unreasonable or discriminatory, or that the board lacked authority under the governing documents. Courts have invalidated assessments where boards cut procedural corners, particularly around notice and voting. You can also seek an injunction to halt collection while the case is pending, or damages if improper enforcement caused you financial harm.
Litigation is expensive and slow, so it generally makes sense only for substantial assessments or where the procedural violations are clear-cut. An attorney familiar with Washington HOA law can tell you whether your case justifies the cost.