Besides handwritten and oral (emergency) wills, the law also recognises the notarised variant. This offers advantages that can mostly pay off when circumstances are complicated or an estate is valuable.

The will is drawn up by the testator without the involvement of possible heirs or legatees. This can be a sensitive matter as the will is only effective after the death of the testator. Formal requirements are therefore imposed by law to protect all parties involved.

In the event of death, the will is often the most important surviving document. In order for it to be valid, it must meet certain formal requirements. Normally, it must be written by hand, as well as dated and signed.