Mercury in the 8th House: 5 Ways it Can Affect You

Mercury in the 8th House

When Mercury is in your 8th House,you are a very private person. You are avoidant of sharing your thoughts and opinions to others, except for the people you are truly close to. You are a perfectionist and you seek to gain power in life through your intellect and abilities.

To understand what it means when a planet lands in a house on your natal chart, you need to look at the meaning of the house, meaning of the planet, and how they interact:

  • The 8th House represents fears, the things in our life we have no control over, shared assets, investments, loans, debt. It also represents our sexuality, the person we are in our private life, who we are in secret.
  • Mercury is the planet of communication, expression and mindset.
  • When Mercury is in the 8th House, you may have insecurities connected to your mind and intellectual abilities. You are avoidant of confiding in other people. You value your privacy and you don’t share your personal plans. You let close to you people with whom you share a strong intellectual connection.

Note that this is just one facet of your natal chart. Other elements of your natal chart can overpower or contradict with the below points. To get an accurate reading, get a holistic reading of your full natal chart from an astrologer.

What Does it Mean when Mercury is in the 8th House?

8th House Meaning

The 8th house tells us about our finances – especially ones we share with other people. It represents shared assets with a partner and inheritance.

It represents our investments – what we put our money into, how we deal with money. It can show loans and debt, it can show financial struggles or gains.

We learn a lot about our intimate relationships. How we deal with intimacy, how easily we allow other people in our life and close to ourselves. It shows the hidden or secretive side of us.

The 8th House is also connected to the things we keep private in our life, the things we have a hard time talking about in front of others people. It shows the things we view as taboo or danger.

The house is connected to regeneration – the personal transformation we go through in our life.

The Meaning of Mercury in Astrology

Mercury is one of the most important planets in a person’s Natal Chart. It is one of the personal planets and it represents an important part of a person’s identity – their mind.

Mercury is the planet that represents the intellect and inventive abilities of a person. It shows us how we rationalize the things we come upon. It shows how we learn things, how curious and observant we are of the world around us.

Mercury represents our oratorical powers and our sense of humor. Mercury is the planet that also represents crafts and skills.

It shows us how we give advice to others, how we solve problems and view matters which we do not understand.  Mercury in a person’s chart indicates whether they learn languages with ease, how good they are with words, how good they are at communicating abstract ideas to others.  It signifies how good a person can be at persuasion and the ability to remember the smallest details.

Mercury shows our ability to improve the things we come upon and how willing we are to experiment. People with Mercury in the 8th house can be quite private and avoidant of confiding in other people. They make plans in private and do not share them with others. They can be great at dealing with money and making investments due to their rationality and skills.

5 Things Mercury in the 8thHouse Signifies

1.You are good at dealing with money

Mercury, the planet of communication in the 8th house of finance shows that you are very money-conscious.

You are good at managing your money and making financial decisions and investments. You are thoughtful and patient and give yourself time before making an important financial decision.

You are very good at dealing not only with yours, but other people’s money as well. You know how to make the best possible financial decision that will likely lead to a good outcome. This makes you good in fields connected to finance and business.

2.  You are very private

Mercury in the 8th house shows that you prefer to keep your opinions to yourself.

You are difficult to understand and you may be seen as someone quite mysterious and reserved. You have difficulty forming an intellectual connection to others and confiding in them unless they have gained your full trust and are close to you.

You are afraid of betrayal and manipulation so you do not allow other people to fully know you and understand you.

3. You are close to people you share an intellectual bond with

Although you do not bond with others easily, when you do, you make them feel truly special. You are very protective of the people you have formed a connection with.

When you fully trust someone, you are ready to connect to them on a deep level and share all kinds of personal matters with them.

You are more willing to share your fears and insecurities with them. When you create an intellectual bond with someone it is likely to last a long time and you are unwilling to let that person go.

4. Your intellect is your power

The 8th house is the house of transformation and when Mercury is in it, it shows that you are likely to experience great shifts in your mindset and immense growth of your intellect.

You are likely to think of your mind as your superpower. You are great at understanding complex matters, doing research on various topics and understanding the world in a better way.

Your experience allows you to have a very different mindset from other people. Your intellect is what provides you with drive and motivation.

5. You are good at research

The 8th house is the house of hidden matters and privacy. Mercury in the 8th house shows a great curiosity for the hidden.

You are great at finding out more information about anything you come upon. You are great at doing research and investigating different things.

You can be quite obsessive once an idea pops into your head. You are unlikely to let it go unless you have found out everything possible about it. At times this can feel unhealthy, so try to be conscious of habits like this.


With Mercury in the 8th House of your natal chart, you keep a lot of things hidden and are quite secretive. You avoid sharing personal information with other people. You are good at dealing with money, making investments and important financial decisions. Although your intellect is your power, it can also be the thing that you feel insecure about from time to time.

Remember that you need to look at the rest of your natal chart to make a better prediciton of your natural personality traits. Other elements on your natal chart may override some of these points (and I’ve tried to note that a few times in this article).