Enter the date of service and the payer’s filing limit to get the exact deadline, the days remaining, and an urgency flag before it’s too late.
The deadline that forgives nothing
Timely filing is the one denial that is almost never overturned: miss the payer’s window and the revenue is simply gone, with the write-off usually barred from patient billing too. Enter the date of service and the payer’s limit — the common 90/120/180/365 presets or a custom figure — and this calculator returns the exact deadline, the days used and remaining, and a flag when a claim enters the danger zone.
How to use it
- Enter the date of service.
- Pick the payer’s limit or type a custom one from the contract.
- Read the deadline and the countdown — the flag turns urgent inside 14 days.
The arithmetic
A worked example
A 1 June 2026 date of service on a 90-day payer must be filed by 30 August 2026. In mid-August that claim shows two weeks remaining and an urgent flag — exactly the claim a filing-deadline work queue exists to surface. The same date on a 365-day payer is comfortable until next spring, which is why the limit belongs in the system per payer, never assumed.
Estimates only — payer contracts, plan documents and the EOB are always the source of truth, and nothing here is billing, legal or medical advice. The calculator runs entirely in your browser: no patient data is entered, transmitted or stored.
One more caution: limits vary by payer, contract, plan and claim type — corrected claims and appeals often run on separate clocks. Confirm the specific payer’s rule; this calculator does the date math for whatever rule applies.