The Salvation Army began its work in Canada in 1882, just fifteen years after Confederation, and quickly became a vital part of the spiritual and social service life of the country.

The first "open air meetings," or worship services, were held in Toronto and in London, Ontario, in 1882. These were led by British immigrants who had known the Army in their homeland. Official Salvation Army operations began in July of that year when Major Thomas Moore arrived from the U.S. headquarters to take charge. By then there were 11 "corps" or congregations in Ontario, and a year later Canada was declared an independent territory, responsible for its own governance within the worldwide organization.

From the beginning, the Army in Canada adopted founder William Booth's philosophy that there is little point preaching salvation to hungry people without addressing their physical needs. And so the concept of "soup, soap and salvation" took hold, later to be developed into the comprehensive social service programs The Salvation Army operates today, many of them in partnership with government.

William Booth was a dissident Methodist minister, who took his Wesleyan sensibilities and Christ's command to "feed my sheep" to their logical conclusion. Starting as The Christian Mission in the East End of London, England, in 1865, it was re-named The Salvation Army in 1878, to reflect the increasingly military structure the movement had adopted. It was this that came to Canada just four years later, and the Army's growth as a church and social service agency since then has paralleled Canada's development as a nation.

There was much opposition to the Army and its methods from civic politicians and other entrenched interests in the early days, and Salvaitonists were often beaten and jailed for their activities in the streets of Canada's cities and towns. Despite this, there was eventual acceptance of the movement as it demonstrated the social benefits that accrued from its activities. The men's social work began in 1890 with a Prison Gate Home in Toronto. The same year a children's shelter was opened. The first maternity home was opened in Saint John, N.B. in 1898, precursor to the Salvation Army Grace Hospitals. In 1901, The Salvation Army recommended to the federal government that a prisoner probation system be adopted, leading to Canada's first parole program. In 1908, salvage work (now called re-cycling) began in Toronto, leading to the well-known thrift stores. In 1911, the first Juvenile Detention Centre was established in Manitoba and turned over to the Army to operate. That same year a farm colony was established in Coombs, B.C.

The Salvation Army's status in Canada was entrenched in law in 1909 when parliament passed an Act giving the organization legal standing, its governance to be conducted by The Governing Council of The Salvation Army in Canada, a situation which continues to this day. In its early years the Canadian Territory was led primarily by British and American officers (clergy), but by 1903 a consolidated College for Officer Training was opened in Toronto, allowing Canadian Salvationists to take more leadership responsibility.

In 1914 the Army shared in the national tragedy of the sinking of The Empress of Ireland in the St. Lawrence. On board were more than 120 Salvationists, bound for an international congress in London. Most them, including the national commander and members of the Canadian Staff Band, were drowned. The Staff Band was not re-formed until 1969.

Canada's involvement in the First World War of 1914-1918 saw the appointment of the first Salvation Officer as a chaplain in the Canadian armed forces, and the donation of five motor ambulances to forces serving overseas. At the end of the war, military hostels were opened in Winnipeg, London, Kingston, Toronto, and other cities, for returning soldiers.

All of this demonstrates the unique ability of The Salvation Army to respond to urgent needs, the Halifax explosion and Winnipeg flood being examples. It also reflects the ingenuity, efficient use of resources and a genius for improvisation, which the organization's quasi-military structure fostered. It showed government that in most things the Army could get the job done with greater efficiency and at less cost than almost any other agency, and at the same time it forged a bond of trust between the people of Canada and the "Sally Ann." A trust that continues to this day.

Innovation in social services continued even as the organization matured: the first seniors' residence, or Eventide Home, was opened in Edmonton in 1926, and Grace Hospitals were opened in major cities across the country, as were homes for unmarried mothers.

The onset of the Second World War found the Army accompanying Canada's armed forces overseas not only as chaplains but as the operators of Maple Leaf Clubs, providing rest and relaxation for the troops. By the end of the war there were clubs in Britain, France, Germany, Belgium, Holland and India. They were mostly staffed by Salvation Army auxiliaries, some of them as young as twenty years old. They provided a taste of home, with Canadian cooking, mail forwarding and social activities, including dances and short term accommodation. On the home front at the end of the war, Salvationists at Canadian ports welcomed the "war brides" of Canadian servicemen.

Once more the development of The Salvation Army and the Canadian nation paralleled each other with the influx of new Canadians in the post-war years. As the ethnic and cultural makeup of the country changed, so did the demographics of the Army. The assumption that the Army's congregations would continue to be almost exclusively white and English-speaking gradually gave way to reflect the fact that Canada, particularly in its large cities, is one of the most cosmopolitan countries in the world. Canadian Salvationists now formally worship in multiple languages and provide services in others.

In the post-war years further social service innovations were introduced, including an anti-suicide bureau and victim witness assistance programs, the latter eventually being absorbed by the criminal justice system.

The Salvation Army Canada and Bermuda Territory has produced many outstanding leaders, not only for the domestic scene but also for international leadership. Five Canadian leaders have been elected General (International Leader): Clarence Wiseman in 1975, Arnold Brown in 1977, Bramwell Tillsley in 1993, Linda Bond in 2011 and Brian Peddle in 2018.

Today the Army in Canada has nearly 700 active officers (clergy), more than 16,000 soldiers (church members) and 30,000 adherents, that is, people who claim The Salvation Army as their church home. There are more than 300 corps (community churches), 125 service/social institutions and one university/college.  In addition to more than 100,000 volunteers, 10,000 people are employed by The Salvation Army in the Canada and Bermuda Territory. Almost 30 Canadian Salvation Army officers and lay personnel also serve worldwide.