Dispute Letter Generator

How this tool works

Pick your bill type, choose whether you're writing to the company or a regulator, fill in the details, and we generate a professional dispute letter with the correct regulatory citations. Everything runs in your browser — nothing is sent to our servers.

When to send a company dispute

Start here. Most billing errors are resolved by contacting the company directly with a clear, specific letter. Reference exact charges, dates, and amounts. Companies have internal dispute processes and are often required by law to respond within 30 days.

When to file a regulator complaint

Escalate when the company doesn't respond within 30 days, denies a valid dispute, or continues collection on disputed charges. Different bill types go to different regulators:

• Medical bills: State Insurance Commissioner, State Attorney General, CMS (Medicare)
• Utility bills: State Public Utilities Commission (PUC) or Public Service Commission (PSC)
• Phone/internet: FCC (federal), State Attorney General
• Insurance claims: State Department of Insurance
• Other bills: State Attorney General, Consumer Financial Protection Bureau (CFPB), Better Business Bureau

Before you send: checklist

Key consumer protections by bill type

Medical bills

• Fair Debt Collection Practices Act (15 U.S.C. §1692g) — Right to dispute in writing; collector must verify the debt within 30 days
• No Surprises Act (Public Law 116-260) — Protects against surprise balance billing for emergency and certain out-of-network care
• NCCI Edits (42 CFR §414.40) — Federal bundling rules for CPT codes
• ACA Internal Appeals (42 U.S.C. §300gg-19) — Right to appeal insurance claim denials

Utility bills

• State PUC/PSC rules — Every state regulates utilities; most require itemized billing and dispute resolution
• Meter accuracy standards — Utilities must maintain accurate meters and allow testing upon request
• Estimated billing limits — Most states limit how many consecutive months a utility can estimate usage

Phone & internet

• FCC Truth in Billing (47 CFR §64.2401) — Carriers must provide clear, non-misleading bills
• FCC Cramming Rules — Unauthorized charges on phone bills are illegal
• Telecommunications Act — Carriers cannot bill for services not ordered or received

Insurance claims

• State Unfair Claims Settlement Practices Act — Insurers must promptly investigate and process claims
• Fair Credit Billing Act (15 U.S.C. §1666) — Right to dispute billing errors on credit accounts

General / other

• Fair Debt Collection Practices Act (15 U.S.C. §1692) — Applies to all third-party debt collection
• State Consumer Protection Acts — Every state has laws against unfair or deceptive business practices
• CFPB Complaint Process — File complaints against financial companies at consumerfinance.gov

A clear, specific dispute letter that cites the right regulations can strengthen your case. Companies are more likely to review a dispute when they see you understand the applicable rules.

More free tools

Use these alongside your dispute letter for a stronger case:

• Bill Math Checker — Verify that line items add up to the stated total before you dispute
• Call Script Builder — Generate a phone script for your dispute call
• Deadline Tracker — Keep track of due dates, appeal windows, and follow-up reminders
• NCCI Code Pair Checker — Check for bundling violations on medical bills
• CPT/HCPCS Lookup — Look up procedure codes and Medicare rates

Learn more

For a deeper dive on disputing bills, read our step-by-step guide to disputing any bill. If you are dealing with a medical bill specifically, see how to write a medical bill dispute letter, or check your bill first with our 5-step medical bill checking guide. For utility bills, see our utility dispute guide. For phone and internet bills, see our telecom billing rights guide. For insurance claim disputes, see our insurance billing errors guide. Know your state-specific billing protections at our state rights directory.