Initials In Numerology

My assumption is that you're referring to an initial in a name instead of the name spelled out.

Whether or not the initial is valid to use, or will result in the best reading, depends on the reading a person is wanting to get.

As an example, for a personal numerology reading that requires a person's full birth name, using an initial would not get the best reading — unless the initial is what was first recorded on the birth certificate or other official recording when the person was born.

A current name reading would accept the initial if the initial is the way the current name is commonly used.

In general, numerology readings that require the persons name or a part of the person's name (only first name or only family name are examples) are best done with the name spelled out rather than with an initial.