Offending Tai Sui in 2027 (Fan Tai Sui): what it means for the Goat, Ox, Dog and Rat

What Tai Sui is

Every year has a stem and a branch. 2027 is the Fire Goat (Ding Wei, 丁未): its stem is Yin Fire and its branch the Goat. The branch is the year’s animal, and folk religion gives it a ruler: Tai Sui (太岁), the star said to rule the year, with a named general for each of the sixty years. To “offend Tai Sui” (Fan Tai Sui, 犯太岁) is to be born in an animal that stands badly with that year’s animal.

Why these 4 signs in 2027

Branches relate to one another in fixed ways, the same every sixty years. The folk lists count five of these relations as offending, and in 2027 they catch these signs:

• Rat: a “harm” (Hai, 害).
• Ox: a direct clash (Chong, 冲), and a “punishment” (Xing, 刑).
• Goat: the same sign as the year (Zhi, 值).
• Dog: a “punishment” (Xing, 刑), and a “break” (Po, 破).

That is why sites disagree. Some list only the same sign and the clash (two signs). Others add punishment, harm and break, as we do, and get four or five. None of them is wrong about the custom; they are counting different things. And the signs in harmony with the year, which folk lists call lucky, are Rabbit, Horse and Pig.

What the classic actually reads

Yuan Hai Zi Ping, the Song-dynasty manual BaZi readers still learn from, has two sections on Tai Sui. Neither mentions your sign. The first opens sternly:

“Tai Sui is the son of heaven within the year, and must not be offended; offend it and it is ill.” 「太岁乃年中天子，故不可犯，犯之则凶。」

But it is talking about the day: “the day offending the year’s ruler”. And in the same breath it adds that “where the five elements have a rescue, that year brings wealth instead”, and closes that Tai Sui “entering a chart is not necessarily a calamity”:

“Tai Sui is the ruler of all the malefics; entering a chart it is not necessarily a calamity.” 「太岁乃众杀之主，入命未必为灾」

The second section defines the offence exactly. When the stem and branch of your birth day clash with or control the year’s, it is called Zheng, “war” (征); when they bind with it, Hui, “gloom” (晦). And then: “only look at whether the chart holds a rescue.”

“The day stem and branch clashing or controlling Tai Sui is called Zheng … only look at whether the eight characters hold a rescue.” 「日干支冲剋太岁曰征……但看八字有无救助。」

So the classic’s question is not “which animal are you?” but “what is the day you were born, and what else is in the chart?” A sign is shared by one person in twelve; it cannot answer that.

How many people the classic marks

We counted. Taking every day of every birth year from 1924 to 2026 and applying the classic’s rule for 2027, each sign has about 33–34% of its days marked — the Goat no more than the Horse. The folk list and the classic simply measure different things.

What to do with this

• See your sign’s page for the working, birth year by birth year: Rat · Ox · Goat · Dog, or all twelve on the 2027 page.
• Type your birth date there to see your own day pillar and whether the classic marks it.
• For what 2027’s stem means to your day master, in money, work and people, see 2027 by day master.
• Many families mark a Tai Sui year at the temple (An Tai Sui, 安太岁). That is a custom and a family’s own business; nothing on this site says it changes anything, and nothing here is for sale.

Sources: Yuan Hai Zi Ping, “On Tai Sui, good and ill” (论太岁吉凶) and “On Zheng Tai Sui” (论征太岁), on Wikisource. The Start of Spring is calculated for UTC+8.

This article was drafted with AI help and checked line by line against the sources it links; the dates and shares are calculated by the same code as the site’s tools, not copied. This site offers no remedies, charms or paid fixes. How the content is made