For a online will to be legally valid and binding, it must be signed by and in the presence of two independent witnesses over the age of 18, in addition to the testator themselves being an adult with mental capacity making the will voluntarily. During the Coronavirus Pandemic, the government amended section 9 of the Wills Act 1837, the legislation dealing with making wills, to allow you to witness a will via a video-call or facetime. This applies to wills made on or after 31 January 2020 and provisionally lasts until 31 January 2024.