Short answer
In modern Western numerology, the birth dates usually called karmic are those falling on the 13th, 14th, 16th or 19th of any month. These are commonly called “karmic debt numbers.” Numerologists also say you can have a karmic debt number if one of your core numbers, such as the sum of your full birth date, is calculated as 13, 14, 16 or 19 before being reduced to a single digit.
What these numbers are said to mean
Numerologists who use the idea describe them in terms of lessons carried over from earlier lives. The descriptions vary by author, but a typical summary runs like this:
- 13: associated with laziness or taking shortcuts in a past life; the lesson is said to be diligence.
- 14: associated with misuse of freedom; the lesson is said to be moderation.
- 16: associated with ego or pride; the lesson is said to be humility.
- 19: associated with misuse of power; the lesson is said to be independence with consideration for others.
These interpretations are traditions within numerology, not facts that can be tested. Different practitioners disagree about the details.
How they are calculated
The simplest method is to look at the day of the month you were born. If it is 13, 14, 16 or 19, it is read as a karmic number. More elaborate methods also check the “life path” total, made by adding all digits of the birth date, and other totals from the name. If an intermediate sum equals one of the four numbers before reducing to a single digit, the person is said to carry that debt. For example, someone born on the 14th has the 14 pattern in their day number.
Not from Kabbalah
The idea is sometimes linked with Kabbalah in searches, but it isn’t a Kabbalistic teaching. Traditional Jewish gematria assigns numbers to Hebrew letters and uses them to interpret texts; it doesn’t identify “karmic” birth dates. Karma itself is a concept from Indian religions, and while Kabbalah has its own idea of reincarnation, called gilgul, it is a different system. See Kabbalah Numerology and Gematria and Kabbalah Principles and Rules for the comparison.
How to treat it
Karmic numbers are best viewed as a symbolic framework that some people find reflective, not as a prediction of anything. There’s no scientific evidence that birth dates determine character or fate, and big decisions shouldn’t rest on them.