Under certain circumstances you may be able to have your marriage annulled. You must apply to annul the marriage within a reasonable period, which in some cases will be three years. There is no requirement to have been married for twelve months. Reasons for seeking an annulment of your marriage are: The marriage has not been consummated At the time of marriage, your spouse was already married to someone else One of you was under the age of 16 when you got married You have married a close relative Your spouse had a venereal disease at the time of marriage and did not disclose this to you Your spouse was pregnant with another person's child at the time of the marriage and did not disclose this to you