Once a Will has been made, you are unable to make any changes unless you make an official alteration known as a codicil or make an entirely new Will.
A codicil must be witnessed in the same way as a Will is witnessed when made. There are no limitations of how many codicils you can make on a Will.
If you need to make any major changes to your Will, it is advisable to make a completely new Will and state in it that any previous Wills are revoked.
We would recommend updating your Will every five years or if there are any major changes to your life, such as:
Getting divorced/separated
Having a child
Moving home
If the named executor in your Will dies
It is also crucial to know that once you marry any Will previously written is automatically cancelled unless it contains some very specific wording.