Payment Plan Math in Washington
2 min read
Published July 14, 2026 • By DocketMath Team
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Quoted from the source law itself. Not legal advice; confirm how it applies to your matter.
Current verified answer
Washington payment-plan-math: interest rate is 3; max statutory rate is 12.
Run the planAuthority and key facts
- Interest Rate: 3
- Max Statutory Rate: 12
- Threshold Amount: 1000
This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.
Payment Plan Math in Washington
In Washington, the maximum interest rate on payment plans for judgments is set at 3% per year above the rate in RCW 19.52.020. This statute governs the legal rate of interest applicable when a contract does not specify a different rate. The law establishes a baseline rate and provides the formula for calculating interest on unpaid judgment amounts. The exact computation depends on the judgment principal and the time period, as the rate is adjusted periodically. The official source, RCW 19.52.020, contains the precise statutory language and any exceptions. The worked example below demonstrates how the 3% figure is applied in a typical payment plan scenario. For a personalized estimate, use the DocketMath calculator to compute your own payment plan interest under Washington law.
Governing authority
In Washington, the payment plan math rule is set by RCW 19.52.020. The verified packet cites RCW 19.52.020 (https://app.leg.wa.gov/rcw/default.aspx?cite=19.52.020).
Washington payment plan math: the verified value is 3% under RCW 19.52.020. The verified packet cites RCW 19.52.020 (https://app.leg.wa.gov/rcw/default.aspx?cite=19.52.020).
Estimate your own result: every situation has exceptions that can change the outcome. Use the payment plan math calculator to estimate your specific figure.
This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.