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Error 1046: Sender ID / Password are incorrect for the Tax District Number and Reference you are submitting.
- Article ID
- Article Name
- Error 1046: Sender ID / Password are incorrect for the Tax District Number and Reference you are submitting.
- Created Date
- 1st May 2019
- IRIS PAYE-Master, IRIS Payroll Business, IRIS Bureau Payroll, IRIS GP Payroll, IRIS Payroll Professional, Earnie, IRIS Earnie IQ
RTI Submissions are rejected with the error:
Error Number 1046
Authentication Failure. The supplied user credentials failed validation for the requested service.
Sending Submissions to the Wrong Service
On the 14th February 2018 HMRC changed the web address (URL) you use to send your RTI submissions. If you are getting the 1046 Authentication Failure error OR a 501 Not Found error on or after the 14th February 2018, first check the version of your software.
The URL address changes were implemented in our software in the following versions:
If you are using a version earlier than those listed above, please update your software and try the submission again.
In addition to installing the latest version you may also need to amend your security software (anti-virus/firewall) to allow all communication to the following addresses:
To continue to receive email communications from HMRC you may need to add the following addresses to your email whitelist, safe list, not spam:
If all of the above have been checked and you are still getting the error you can force the software to recreate the connection details used to make your submissions.
Browse to your payroll software installation folder. If you are not sure where this is located, right-click on your payroll short-cut and select the option “Open file location“.
In the list of files and folders you’re presented with, look through the list for the file RTI.CONFIG. (The exception to this is GP Payroll. For GP Payroll, open the folder DLLs, you will find the file RTI.CONFIG in here.)
Delete the file RTI.CONFIG.
Go back to your payroll software and send the submission again. This will force the software to create a new copy of the file RTI.CONFIG.
If all of the above steps have been checked the error is likely the PAYE details entered in the company information, please continue to the steps below to resolve the error.
When filing online using your payroll product your, and (tax district and reference number) are checked against the records held on the HMRC systems. If one or more of these do not match you will receive an .
Incorrect User ID & Password
This is the most common reason for receiving an Error 1046. A good way to check the user ID and password is to go to the HMRC login website and try to log in by copying and pasting the User ID and password.
When entering the password into the HMRC website, only the first 12 digits are accepted. When entering them into the software it recognises all digits so would deem anything after the first 12 as being incorrect causing the Error 1046. If your password is longer than 12 digits, only use the first 12 within the payroll software.
If you are unsure of these details contact HMRC Online services helpdesk on 0300 200 3600. Alternatively, you could work through the password reset process here.
Please note: A security feature employed by HMRC means if you enter the wrong User ID or password three times or more when trying to log on to the HMRC website, your account will be locked and you won’t be able to use HMRC Online Services for the next two hours. You will be able to try again after the 2 hour period has expired.
Incorrect PAYE-Reference (If you are filing for your own company)
Log on to the HMRC website using your User ID and Password.
Click on ““
Check the companies “” and “ ” are registered and activated for you to file RTI submissions online.
Thefield should contain 3 numbers (example: 123). The Tax Reference field should contain the other details (example: AB45678). You should not enter a forward slash into the fields. This will cause the submission to fail.
Incorrect District Name
We have had instances of the submission failing due to an incorrect tax district name.
Check the district name with HMRC to make sure the correct details are used in your payroll software.
If the user ID, password, district number and reference number are all shown to be correct check HMRC are expecting PAYE submissions on this account.
Not registered for the service
If PAYE for Employers is not listed under “” you will need to register for this before you are able to file online.
Not activated for the service
After registering for a service you should receive an activation code. The activation code will be issued within seven days – use it once then throw it away. It will expire if you don’t use it within 28 days of the date on the letter, you will have to request a new one.
You will not be able to file online unless you havefor PAYE for Employers and
In a very small number of circumstance, this error has been seen to be caused by web browser auto complete setting filling in the wrong details on forms.
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