Here is the reject message after completing 4136 line 1(b):

Return Rejected 02/27/2026
Code: /Return/ReturnData/IRS4136/NontxLiquefiedPetroleumGasGrp/CreditRt
Form: 0(00) Form Copy:
Line #:
Description: (/Return/ReturnData/IRS4136/NontxLiquefiedPetroleumGasGrp/CreditRt)
Error Detail:
Data in the return is missing or invalid. Please double check your entries.
Error Resolution:
Review entries on Form 4136, Credit for Federal Tax Paid on Fuels, correct all errors. On each row, if an entry has been made in any column, review all columns to ensure that the row has been properly completed. Make the appropriate change(s) and re-submit this return for electronic filing. If the reject continues, you will need to print this return and file by mail.
Status Status Date
Return Transmitted 02/27/2026
Status Status Date
Return Rejected 02/27/2026
Code: /Return/ReturnData/IRS4136/NontxLiquefiedPetroleumGasGrp/CreditRt
Form: 0(00) Form Copy:
Line #:
Description: (/Return/ReturnData/IRS4136/NontxLiquefiedPetroleumGasGrp/CreditRt)
Error Detail:
Data in the return is missing or invalid. Please double check your entries.
Error Resolution:
Review entries on Form 4136, Credit for Federal Tax Paid on Fuels, correct all errors. On each row, if an entry has been made in any column, review all columns to ensure that the row has been properly completed. Make the appropriate change(s) and re-submit this return for electronic filing. If the reject continues, you will need to print this return and file by mail.