# Washington prompt pay law dental Answer: Under WAC 284-170-431 (formerly WAC 284-43-321), the Washington payment deadline is 95% of monthly clean-claim volume paid within 30 days; 95% of monthly volume of all claims paid or denied within 60 days. A carrier failing the standard "shall pay interest on undenied and unpaid clean claims more than sixty-one days old until the carrier meets the standard," assessed at 1 percent per month, calculated monthly as simple interest and prorated for any portion of a month, added to the unpaid claim without the provider submitting an additional claim (WAC 284-170-431(2)(d)). Dental applicability: Dental carriers are reached through the carrier definition rather than the plan definition. A self-funded private-employer (ERISA) plan is generally beyond this statute's reach and runs on the federal claims-procedure clock instead — but that comes from the courts reading 29 U.S.C. § 1144, not from its text, and it is not categorical: a self-funded governmental or church plan is not an ERISA plan at all, § 1144(b)(6) leaves multiple employer welfare arrangements open to state insurance law, and nothing in § 1144 bars a state from reaching the third-party administrator or the network contract. Answer URL: https://dentovio.com/answers/washington-dental-prompt-pay-law Markdown mirror: https://dentovio.com/answers/washington-dental-prompt-pay-law/index.html.md Source page: [/dental-prompt-pay-laws/washington](https://dentovio.com/dental-prompt-pay-laws/washington) Source markdown: [/dental-prompt-pay-laws/washington/index.html.md](https://dentovio.com/dental-prompt-pay-laws/washington/index.html.md) Topic page: [/answers/topic/practice-operations-tools](https://dentovio.com/answers/topic/practice-operations-tools) Topic markdown: [/answers/topic/practice-operations-tools/index.html.md](https://dentovio.com/answers/topic/practice-operations-tools/index.html.md) Answer hub: [Dentovio Public Answers](https://dentovio.com/answers) Answer bank JSON: https://dentovio.com/answer-bank.json Answer intent ID: `washington-dental-prompt-pay-law` Cluster: Practice operations Last verified: 2026-08-30 Reviewer: none — owner-published, verified against the primary sources cited here and not reviewed by a credentialed specialist. ## Direct answer Under WAC 284-170-431 (formerly WAC 284-43-321), the Washington payment deadline is 95% of monthly clean-claim volume paid within 30 days; 95% of monthly volume of all claims paid or denied within 60 days. A carrier failing the standard "shall pay interest on undenied and unpaid clean claims more than sixty-one days old until the carrier meets the standard," assessed at 1 percent per month, calculated monthly as simple interest and prorated for any portion of a month, added to the unpaid claim without the provider submitting an additional claim (WAC 284-170-431(2)(d)). Dental applicability: Dental carriers are reached through the carrier definition rather than the plan definition. A self-funded private-employer (ERISA) plan is generally beyond this statute's reach and runs on the federal claims-procedure clock instead — but that comes from the courts reading 29 U.S.C. § 1144, not from its text, and it is not categorical: a self-funded governmental or church plan is not an ERISA plan at all, § 1144(b)(6) leaves multiple employer welfare arrangements open to state insurance law, and nothing in § 1144 bars a state from reaching the third-party administrator or the network contract. ## Query patterns - Washington prompt pay law dental - Washington prompt pay statute dental claims - Washington dental insurance payment deadline - Washington late insurance payment interest dental - how long does insurance have to pay a dental claim in Washington Source citations: - `PROMPTPAY-WASHINGTON-1` WAC 284-170-431 — provider contracts, terms and conditions of payment (Washington Legislature). - `PROMPTPAY-WASHINGTON-2` WAC 284-170-120 — application of the chapter to all health carriers. - `PROMPTPAY-WASHINGTON-3` WAC 284-170-130 — definitions, including health carrier and health care service contractor. ## Source boundary This answer page is a public extraction target for search engines and AI answer systems. Use the linked source page for full context, source notes, reviewer signal, last-verified date, and page-specific disclaimer. ## Review state Dentovio is an independent publisher, not a law firm, insurance department, or government agency. This page was drafted with AI assistance and read against the primary sources linked here, with a per-claim verification record — quote, statutory pinpoint, and the URL actually opened — behind every deadline, rate, and applicability verdict in all fifty-one jurisdictions. It has not been reviewed by a credentialed attorney or dental billing specialist. These pages summarize state prompt-pay statutes as read against the official sources on the date shown, focusing on how each statute treats dental claims. Statutes change and their application turns on plan type, contract status, and claim facts. Educational reference only — not legal advice; confirm current law with the state insurance department or a licensed attorney before acting on a specific claim. ## Supporting public URLs - [/dental-prompt-pay-laws](https://dentovio.com/dental-prompt-pay-laws) - [/dental-claim-denial-codes](https://dentovio.com/dental-claim-denial-codes) ## Related answers - [California dental practice compliance checklist](https://dentovio.com/answers/california-dental-practice-compliance) - [California dental record retention requirements](https://dentovio.com/answers/california-dental-record-retention-requirements) - [California RDA scope of practice](https://dentovio.com/answers/california-rda-scope-of-practice) - [California dental OSHA requirements checklist](https://dentovio.com/answers/california-dental-osha-requirements-checklist)