The Nuu-chah-nulth-speaking peoples of Nootka Sound, including the Mowachaht, Muchalaht, Nuchatlaht, and Ehattesaht First Nations, have inhabited this coastline for over 4,200 years. Spanish explorers arrived in 1774, followed by the English in 1778, but the most remarkable early encounter came at the turn of the nineteenth century. John R. Jewitt, a young English armourer aboard the trading ship Boston, was captured and held for nearly two and a half years by Chief Maquinna. Jewitt survived as the chief's captive, and his published memoir became one of the most detailed accounts of Indigenous life on the Pacific Northwest Coast ever written. The steep-sided inlet where Jewitt endured his captivity is the same one that shelters Tahsis today, its geography unchanged by the centuries that followed.

Throughout the 1930s, companies struggled to establish sawmill operations on Vancouver Island's west coast. Tahsis offered what others could not: a level plateau at the head of the inlet with deep-sea access for ocean-going vessels, and a southeast-facing site that caught enough sunlight to keep freshly cut lumber from molding in the relentless rain. Nootka Wood Products Limited began operations in 1937 at what it called "Port Tasis," cutting 150,000 board feet of lumber daily for export. The Gibson Brothers built a successor mill in 1945. When it burned down three years later, they partnered with the East Asiatic Company to form the Tahsis Company, and by April 1949 a new mill was back in production. At its peak, the town's population reached roughly 2,500. Every aspect of community life revolved around the mill, which eventually came under the ownership of Canadian Pacific Forest Products.

For decades, Tahsis existed in a state of productive isolation. No road connected it to the rest of Vancouver Island until 1972, when the Head Bay Road finally linked the village to Gold River. By then, Tahsis had already incorporated as a municipality in 1970, shedding its company-town status. But the road that connected Tahsis to the outside world also exposed it to outside economic forces. When the local sawmill closed in 2001, the effect was devastating. The population, which had already declined from its peak, dropped to 892 in the 2001 census. The mill was dismantled, and the economic engine that had sustained the community for over six decades simply ceased to exist.

What saved Tahsis, or at least sustained it, was the same geography that attracted the mill in the first place. The steep-sided inlet that protects the village from Pacific storms also creates exceptional conditions for sport fishing. Salmon and halibut run through Nootka Sound in numbers that draw anglers from across British Columbia and beyond. The village pivoted to tourism and outdoor recreation, trading lumber exports for fishing charters and kayak rentals. By the 2021 census, the population had stabilized at 393, a fraction of its former size but enough to sustain a village that hosts events like The Great Walk each June and Tahsis Days in July. The docking facilities that once loaded ocean-going timber ships now serve sport fishing boats, and the inlet remains what it has always been: a sheltered harbor at the edge of the Pacific, patient and indifferent to whatever economy its residents build around it.