Pope Francis has formally approved sainthood for Mother Teresa and has set September 4 for her canonisation.
The move comes 19 years after the death of the missionary nun who dedicated most of her adult life to working with the poor of Kolkata.
Mother Teresa took the first step to sainthood in 2003 when she was beatified by Pope John Paul II following a fast-track process involving the recognition of a claim she had posthumously inspired the 1998 healing of a critically-ill Bengali tribal woman.
The canonisation ceremony will take place in Rome with a thanksgiving ceremony held at a later date in Kolkata where Mother Teresa is buried.
The Albanian nun, 87 when she died in 1997, was revered by many Catholics and won the 1979 Nobel peace prize for her work with the poor.
Some critics branded her a religious imperialist whose opposition to birth control and abortion ran contrary to the interests of the communities she worked for.