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c. 1493, mature imperial systemReputable source · 2 sourcesWell documented

The Mit'a Labor Tax Fills Thousands of State Storehouses

With no currency, the empire runs on conscripted labor and goods stored in stone warehouses that could keep food fresh for years

On the timeline · around c. 1493, mature imperial system · Tawantinsuyu at Its HeightTawantinsuyu at Its HeightThe Mit'a Labor Tax Fills Thousands of State Storehouses14751480148514901495150015051510

Quick facts

Tax form
Goods and labor (mit'a); no currency
Storehouses
Qollqa, built in the tens of thousands
Storage life
Up to 2 years (ordinary), 4 years (freeze-dried)
Land division
Religion, ruler, community (three parts)

What happened

The Inca economy ran without money. Instead, conquered communities paid tax in kind, foodstuffs, precious metals, textiles, feathers, dyes, and spondylus shell, and in labor, known as mit'a service, which could send workers anywhere in the empire they were needed: building roads, working state farms, or constructing monuments like Sacsayhuaman. Agricultural land and herds were divided into three parts, one for the state religion, one for the Inca ruler, and one for the farming community itself, and families performing mit'a duty kept their own plots largely untouched while they worked the state's land. The resulting surplus filled qollqa, single-room stone storehouses built by the tens of thousands across the empire, arranged in neat rows near population centers and roadside stations, with ventilation and drainage designed to keep contents dry: ordinary goods could be kept for up to two years and freeze-dried foods for up to four.

Why it matters

This system let the state redistribute food during droughts and disasters, giving Inca rule a real material benefit to conquered populations alongside its coercion, and it is what allowed the empire to sustain large standing construction projects and armies without a cash economy. The storehouses also mattered militarily: Spanish accounts describe Pizarro's forces resupplying from captured Inca qollqa during the conquest, turning the empire's own logistics network against it.

How we know

World History Encyclopedia's accounts of Inca government and agriculture describe the tax and storage system based on colonial-era Spanish administrative records, which inventoried the qollqa system as they took it over, and on archaeological survey of surviving storehouse structures.

Sources

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Part of a timelineThe Inca Empire26 events · How a highland kingdom without writing, wheels, or iron built the largest empire the Americas ever saw, then lost it in a single generationView all →