Claim denied as the time limit for filing has expired

Claim Denied: Time Limit for Filing Has Expired (TFL Expired) – Simple Guide for Medical Billing

In medical billing, one of the most common claim denials is:

✅ “The time limit for filing has expired”
✅ “Past timely filing”
✅ “TFL expired”

This denial happens when the insurance company receives the claim after the allowed filing time period is over.

Let’s understand this denial in a very simple way with definitions, call flow, and actions to take.

What Does “Time Limit for Filing Has Expired” Mean?

Every insurance company gives providers a time frame to submit claims.

If the claim is submitted late, the payer denies it.

📌 Example:

If the payer has a 90 days Timely Filing Limit, and the provider submits the claim after 90 days from DOS, the claim will be denied.

Important Terms You Must Know

1) TFL – Timely Filing Limit

✅ TFL = Timely Filing Limit

It is the maximum time allowed by insurance to file a claim.

📌 TFL is calculated from DOS (Date of Service).

Example:

DOS: 01-Jan-2026
TFL: 90 days
Last day to file: 31-Mar-2026

2) POTF – Proof of Timely Filing

✅ POTF = Proof of Timely Filing

If the claim was filed within the deadline but insurance did not receive it, we can prove it using POTF.

POTF examples:

• A claim filed earlier to same insurance but not received
• Previously rejected claim (showing it was submitted on time)
• Initial billing to another insurance (as primary payer)

3) AFL – Appeal Filing Limit

✅ AFL = Appeal Filing Limit

This is the time allowed to submit an appeal after the denial.

📌 AFL is calculated from DOD (Date of Denial).

Why Do Claims Get Denied for TFL Expired?

Common reasons:

• Claim submitted late
• Correct payer identified late
• Billing delay from provider side
• Clearinghouse issues
• Claim filed on time but payer received late

On Call Scenario (Simple Call Flow)

When you call insurance regarding this denial, follow this flow:

Step 1: Identify Denial and Dates

Claim denied as past timely filing / TFL expired

Ask:

1. ✅ “May I get the denial date?” (DOD)
2. ✅ “When did you receive the claim?”
3. ✅ “What is the timely filing limit for this plan?”

Step 2: Check Whether Claim Was Received Within TFL

Now compare:

• DOS + TFL = last filing date
• Claim received date should be on or before last filing date

If YES (Claim received within TFL)

➡️ Ask the payer to correct the denial:

✅ “Could you please send the claim back for reprocessing since it was received within timely filing limit?”

Then ask:

• “What is the TAT for reprocessing?”
• “May I have the claim number and call reference number?”

If NO (Claim received after TFL)

➡️ Now check POTF.

If Claim Is Late – Next Decision: POTF Available or Not?

Scenario A: POTF Available ✅

You can appeal.

Ask:

✅ “Can we appeal with proof of timely filing?”

Then ask:

• “What is the fax number or mailing address to send the appeal?”
• “What is the appeal filing limit?”
• “May I have the claim number and call reference number?”

📌 Send appeal with POTF documents.

Scenario B: POTF Not Available ❌

If no proof exists, claim is usually not payable.

Then:

✅ collect claim number and call ref #
✅ adjust/write off (based on client process)

Important Notes & Correct Actions

Here are the correct actions depending on situation:

1) Denied Incorrectly (Within TFL)

✅ Request reprocessing
✅ Follow up based on TAT given by payer

2) Filed After TFL, POTF Available

✅ Appeal with POTF

3) Filed After TFL, No POTF

✅ Adjust / write-off claim (as per process)

4) Initially Billed to Other Insurance Within TFL

Sometimes claim was billed on time to a different insurance (wrong payer), then later billed to correct payer after TFL.

✅ Use the initial billing details to other insurance as POTF
✅ Submit appeal to current insurance

5) Appeal Filing Limit Crossed

If AFL is crossed:

✅ most cases → write off

📌 but some clients ask to still send POTF even after AFL crossed — follow client instruction.

Special Case: Claim Sent on Last Day but Received Late

Example:

• TFL = 90 days
• Claim submitted on 90th day
• Insurance received on 91st day

Even though payer says late, you can still appeal.

✅ Submit appeal with POTF showing claim sent within TFL.

Often this gets approved.

Conclusion

A denial for “Time limit for filing has expired” is not always final.

✅ First confirm TFL and received date
✅ If received within TFL → request reprocessing
✅ If received after TFL → check POTF
✅ If POTF available → appeal
✅ If no POTF → adjust/write-off