Tax Haven
Tax Haven is a Duchy of Warsaw Revolution technology at the Town Center that resets Market rates and enables shipment tax. The Kraków Republic Home City Card is required.

Research profile
- Age
- Revolution
- Civilization
- Duchy of Warsaw
- Research location
- Town Center
- Home City Card
- Kraków Republic
- Research time
- 30 seconds
- Wood cost
- 500
- Effect
- Resets the Market rates; Enables shipment tax in Town Centers; Adds coin 400 to shipment tax
Effect & research conditions
Research costs 500 Wood and takes 30 seconds. Once active, Town Centers can collect shipment tax; Tax Haven adds 400 Coin to the tax for each shipment sent by another player. It also resets current Market exchange rates. It does not directly generate Coin without the qualifying shipment event.
Research condition
Poles after Revolution to Duchy of Warsaw; Town Center; requires Kraków Republic Home City Card; 500 Wood; 30 seconds.
When to research
Research Tax Haven when resetting Market exchange rates and adding 400 Coin to the Duchy of Warsaw shipment tax supports the Revolution plan. Its 500 Wood and 30-second cost competes with structures and units, so check current rates and likely taxed shipments first. The Town Center access comes from the relevant Revolution route; this is not a general market upgrade.
Duchy of Warsaw shipment-tax tools
Tax Haven is a Revolution technology for the Duchy of Warsaw at the Town Center, requiring the Kraków Republic Home City Card. It costs 500 Wood and takes 30 seconds. It resets Market rates, enables shipment tax at Town Centers and adds 400 Coin to shipment tax.
Coordinate the Market reset
The reset changes current Market rates, so time the technology before making exchanges that depend on those rates. Shipment tax requires eligible incoming shipments and active Town Centers; it is not a guaranteed immediate crate. The Home City prerequisite and Revolution route make this a specialized economic option.