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Bill > SB5845


WA SB5845

WA SB5845
Modernizing and clarifying timely payment requirements for health carriers.


summary

Introduced
01/12/2026
In Committee
03/02/2026
Crossed Over
02/11/2026
Passed
03/23/2026
Dead
Signed/Enacted/Adopted
03/23/2026

Introduced Session

2025-2026 Regular Session

Bill Summary

AN ACT Relating to modernizing and clarifying timely payment 2 requirements for health carriers; amending RCW 48.43.600; reenacting 3 and amending RCW 41.05.017; adding a new section to chapter 48.43 4 RCW; creating a new section; and providing an effective date. 5

AI Summary

This bill aims to modernize and clarify the rules for how quickly health insurance companies, referred to as "health carriers," must pay healthcare providers and facilities for services rendered to patients. It establishes a new requirement that carriers must pay or deny a claim within 30 calendar days of receiving a "clean claim," which is a claim without any errors or missing information that would prevent payment. If a claim is not clean, the carrier must notify the provider within 21 days, explaining why it's not clean and what specific information is needed, and they generally can't ask for more information more than once. If carriers fail to meet these payment deadlines, they will be required to pay interest on the overdue amount, with the interest rate increasing over time, and this interest cannot be passed on to the patient. The bill also modifies existing rules regarding how long carriers have to request a refund from a provider for an overpayment, generally shortening these periods to 12 months (or 6 months for mental health and substance use disorder services) for most situations, and 18 months (or 9 months for mental health and substance use disorder services) when coordinating benefits with another payer. These new payment timeliness requirements will apply to health plans filed or renewed on or after January 1, 2027, with the changes to refund timelines taking effect on January 1, 2028.

Committee Categories

Budget and Finance, Health and Social Services

Sponsors (10)

Last Action

Effective date 6/11/2026*. (on 03/23/2026)

Bill Topics

Banking, Finance, and Domestic Commerce
  • ‐ Insurance Regulation
Health
  • ‐ Health Insurance Reform

bill text


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bill summary

Document Type Source Location Created
State Bill Page https://app.leg.wa.gov/billsummary?BillNumber=5845&Year=2025&Initiative=false 12/08/2025
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Session%20Laws/Senate/5845-S.SL.pdf 03/26/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Passed%20Legislature/5845-S.PL.pdf 03/10/2026
Final bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5845-S.E%20SBR%20FBR%2026.pdf 03/09/2026
Fiscal Note - 5845 ESSB AMH ENGR H3674.E (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77492 03/07/2026
Fiscal Note - 5845 ESSB AMH HCW H3674.2 (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77486 03/06/2026
Fiscal Note - 5845 ESSB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77473 03/06/2026
Engrossed substitute House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/5845-S.E%20HBR%20APH%2026.pdf 03/06/2026
Engrossed substitute Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5845-S.E%20SBR%20HA%2026.pdf 03/05/2026
5845-S.E AMH ENGR H3674.E https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/5845-S.E%20AMH%20ENGR%20H3674.E.pdf 03/05/2026
Engrossed substitute House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/5845-S.E%20HBR%20APP%2026.pdf 03/03/2026
Bronoske 5845-S.E AMH BRON WEIK 118 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/5845-S.E%20AMH%20BRON%20WEIK%20118.pdf 03/02/2026
Fiscal Note - 5845 ESSB (Partial) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77278 02/27/2026
Health Care & Wellness 5845-S.E AMH HCW H3674.2 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/House/5845-S.E%20AMH%20HCW%20H3674.2.pdf 02/26/2026
Engrossed substitute House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/5845-S.E%20HBR%20HCW%2026.pdf 02/25/2026
Fiscal Note - 5845 SB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=77017 02/19/2026
Engrossed substitute House bill analysis 2026 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/5845-S.E%20HBA%20HCW%2026.pdf 02/17/2026
Fiscal Note - 5845 SB (Partial) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=76893 02/17/2026
Fiscal Note - 5845 SB (Partial) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=76863 02/13/2026
Engrossed substitute Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5845-S.E%20SBR%20APS%2026.pdf 02/12/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Bills/5845-S.E.pdf 02/12/2026
Slatter 5845-S AMS SLAT S5022.1 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Amendments/Senate/5845-S%20AMS%20SLAT%20S5022.1.pdf 02/11/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Bills/5845-S.pdf 02/02/2026
Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5845%20SBR%20HLTC%20OC%2026.pdf 01/30/2026
Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5845%20SBR%20HLTC%20TA%2026.pdf 01/29/2026
Senate bill report (orig.) https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/5845%20SBA%20HLTC%2026.pdf 01/16/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Senate%20Bills/5845.pdf 12/08/2025
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