The service will be held from 1pm on Tuesday (November 27) at the Albion United Reform Church in Ashton-under-Lyne, Greater Manchester.
Tarmey, well-loved for his role as Weatherfield's Jack Duckworth, passed away in Tenerife on November 9. He was 71.
The late actor's family have requested that his friends, former colleagues and members of the public make a donation in his memory to the Brain Tumour Research charity instead of sending flowers to his funeral.
Those who would like to make a donation can do so via a dedicated Justgiving page. Other ways to donate are detailed on the organisation's official website.
Tarmey became a patron of the charity to help raise funds and awareness after his son Carl was diagnosed with a brain tumour in 2009.
A family statement released today (November 21) said: "Bill's family are very grateful for the messages of condolence, comfort and support they are receiving from Bill's friends, colleagues and members of the public at this very sad time."
Tributes poured in for Tarmey from soapland and beyond following his death earlier this month.
Photo gallery - Bill Tarmey's life and career in pictures:
Copyright: Rex Features ITV/Rex Features