When someone close to you dies, it is usual to attend either the wake (tsuya) or the funeral (kokubetsushiki). Black clothing should be worn as a display of mourning. Men should wear a black tie.
Money should be enclosed in special envelopes for the occasion (fushugi bukuro) (sold at stationary shops) and brought to the wake or funeral.

When a member of the family dies, the type of funeral will depend on the religion of the individual or family. In Japan cremation is usual. Undertakers (sogiya) carry out funeral services. Since fees vary according to the type of funeral, it is important to check with the undertaker.

Note 1 The information given is that confirmed as of July 2002. Note that a new system or system revisions may have been introduced after this date.

This information is from the CLAIR website. The Council of Local Authorities for International Relations (CLAIR) was established in July 1988 in response to rising concerns about local level internationalization in Japan.