Free File Fillable Forms Federal Tax Return XML Error X0000-005 (Again!)

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C’mon! After getting my Federal tax return rejected for a validation error earlier this month, and receiving two knew forms (a W2C and a K1), I was finally able to refile my return. Only to get another validation error.

Last time it made sense - I entered only 4 of the 5 digits of a ZIP code. This time I entered a period (.) in the company name listed on the form K1.

Here’s the validation error:

Issue : Business Rule X0000-005 - The XML data has failed schema validation. cvc-pattern-valid.
    Value `ENTERPRISE PRODUCTS PARTNERS LP.` is not facet-valid with respect to pattern
    `(([A-Za-z0-9#\-\(\)]|&|`) ?)*([A-Za-z0-9#\-\(\)]|&|`)` for type `BusinessNameLine1Type`.

The following information may help you determine the form at issue:

A bit cryptic for non-programming types. For the uninitiated, (([A-Za-z0-9#\-\(\)]|&|`) ?)*([A-Za-z0-9#\-\(\)]|&|`) is what is known as a regular expression, or regex for short. This bit of regex is saying the company name can only contain letters, numbers, the symbols #-()&`, and a space. Oh, and it can’t end in a space.

Note that a period (.) is not in the list of acceptable symbols.

After testing the regex over at I removed the period and resubmitted my return.

This time it was accepted.

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