Massachusetts Timely Filing Law

Overview

Massachusetts requires insurers to process clean claims within 45 days under Massachusetts prompt payment law. Timely filing applies to all claims regardless of submission method. Insurers must acknowledge receipt and notify you of any deficiencies. Massachusetts imposes 1.5% monthly interest (18% annually) on claims paid late, the highest rate among states.

Key Requirements

1. Submit claims with complete member identification, provider credentials, dates of service, and coded diagnoses and procedures.
2. Verify insurer receipt within 5 business days.
3. Incomplete claims fall outside the 45-day requirement. Insurers must detail deficiencies within 45 days.
4. Upon resubmission with corrections, a new 45-day period begins.
5. Insurers must pay 1.5% monthly (18% annual) interest on claims paid after 45 days, compounded monthly.

Penalties and Enforcement

The Massachusetts Department of Insurance enforces timely filing compliance. Insurers who miss the 45-day deadline face fines and license sanctions. Interest accrues monthly at 1.5% (18% annually). Consumers and providers can file complaints with MA DOI. Systematic violations result in escalating penalties.

Appeals and Exceptions

Incomplete claims are excluded from the 45-day timeline. The clean claim definition determines whether the clock applies. Once you resubmit complete information, a new 45-day period begins. Claims with coding errors or missing documentation are subject to additional review.

Interaction with Federal Law

Massachusetts's 45-day standard aligns with many federal timelines. The 18% interest rate is higher than federal requirements. The No Surprises Act establishes 30 days for emergency out-of-network claims. Massachusetts's broader 45-day rule applies to all claims. NSA rules do not supersede the MA timeline.

Common Questions