Internet submission error codes: General errors
Summary
A list of error general error codes that can occur when you attempt Internet submissions in Sage 50 P11D.
Description
When you send your submission to HMRC, sometimes an error code appears.
If there's a general problem with the submissions process, the following error codes apply:
| Code | Error | Reason |
|---|---|---|
| 2020 | This service is temporarily unavailable. Please try again later. | The filing service is unavailable due to communication failure or other reasons. |
| 5012 | This field contains an invalid character. Please try again and if the problem recurs contact your software supplier. | The data used isn't within the set standards of the schema. |
| 5018 | Tax Office Number and Tax Office Reference in message header do not match values in message body. | All TaxOfficeNumber and TaxOfficeReference values within the submission must be the same. |
| 5020 | This message contains a form that is not currently supported for online submission. | You're trying to submit a form that HMRC has prohibited now. |
| 5020 | This submission must contain at least one form. | No forms in submission. |
| 5030 | Invalid value in Class tag. | Invalid Class value. |
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- Solution ID
- 200427112222818
- Last Modified Date
- Thu May 21 11:01:02 UTC 2026
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