You can claim compensation if your spouse, civil partner or child (under 18) has a fatal accident. If you were not married, but were living together for more than 2 years, you will be treated as a married partner and can therefore claim. You have three years from the date of death to claim.
As well as compensation for your partner’s pain and suffering, you can claim for any losses that you have suffered. For example, you might claim for the loss of your partner’s future income and help around the house, and also for funeral costs.
In additional you will normally be entitled to a standard bereavement award of £12,980.