How it works — the paper trail

A minute of your time. Then it's their move.

Scan your bill free. If you decide to continue, we prepare the letters. With Fight Kit, you print and mail them. With In Your Corner, we mail up to two approved letters by certified mail and track delivery.

Last updated by BillFighter · Steps and prices read from the live product

TODAY
Upload. We read every line and show you what looks wrong — about a minute of your time. If you continue, your letter is drafted.
DAYS 1–5
Certified mail carries it to their door — tracked, with a return receipt.
DAYS 1–30
Your follow-up window. We watch the calendar and remind you at 14, 7, and 2 days.
THEN
They may explain, verify, correct, reduce, reject or fail to answer. BillFighter helps you understand the response and prepare the appropriate next step.
Five steps — each one leaves evidence
01

Upload the bill

A photo or a PDF — hospital, lab, collector, or insurer. No app required, nothing to type.

NORTHWIND GENERAL HOSPITAL · #4471-B
TOTAL BILLED$3,367.50
02

We read every line — twice

First for errors — duplicates, upcoding, unbundled fees, missing adjustments. Then, if a hospital sent it, for help paying: nonprofit hospitals must have a financial-assistance policy under federal law (501(r)). If there is a balance, we prepare your written request for that help. The hospital decides if you qualify, based on its rules and your income. Some hospitals reduce or forgive the balance.

CPT 99285 · again$921.00
↳ DUPLICATE — remove one: −$921.00
Supplies · “misc”$189.00
↳ UNVERIFIED — itemization required
Same specimen as the homepage — the numbers travel
03

Your letter — or your application

Drafted in about a minute, citing the law that applies, when one does — and if you may qualify for financial assistance, we draft that application too. Read every word before anything moves — if it is not right, ask for a fresh draft.

VIA USPS CERTIFIED MAIL
RE: Billing dispute — Acct #4471-B — $1,110.00 in flagged charges
CITES THE LAW THAT FITS THE RECIPIENT
04

Mail it

Fight Kit: download the print-ready packet and mail it yourself. In Your Corner: approve the letter and BillFighter mails it by certified mail — USPS tracking and the delivery record on file in your case.

USPS CERTIFIED MAIL — RECEIPT · SPECIMEN
9407 1112 0083 5021 4477 06
MAILED JUL 02, 2026RETURN RECEIPT: YES
DELIVERED ✓
05

The pressure shifts — to them

On a timely written validation demand, a covered collector has to mail you verification before it can keep collecting. We track your follow-up date — and if it passes in silence, the escalation letter is already drafted.

30 days your follow-up window
FOLLOW UP BY AUG 1
SENT JUL 2 · CERTIFIED RECEIPT ON FILE · REMINDERS AT 14 / 7 / 2
What we catch
Duplicate chargesUpcodingUnbundled feesBalance billing — NSAMissing adjustments“Misc” — unverified
FREE TO SCAN — 3/MO · FIGHT KIT $39 PER CASE, YOU MAIL IT · IN YOUR CORNER $99 FOUNDING, THEN $129, WE MAIL IT CERTIFIED · WHOLE PRICE → PRICING

Fight the next bill.

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