What actually arrives when a farm feeds the main: received = sent × (1 − tax), 35% at Level 1 falling to 8% at Level 25 (D.6.1).
Combat math
Economy & progression
Trading Post transfer tax
What actually arrives when a farm feeds the main: received = sent × (1 − tax), 35% at Level 1 falling to 8% at Level 25 (D.6.1).
what the farm loads into a single transfer
Worked example — compendium D.6.1
Field
Example
Where it comes from
Resources sent
1,000,000 wood
one farm-to-main transfer
Trading Post level
1 vs 15
the tax falls 35% → 8% from Level 1 to 25 (RoK Wiki table)
At Level 1 only 650,000 arrives; the same send at higher levels closes a 270,000-per-trip gap — the arithmetic case for levelling farm Trading Posts before bulk feeding.
The farm-feeding rule
Community threshold: Trading Post 15+ before bulk feeding. Below Level 7 the tax is steep enough that pulling troops out and plundering your own farm is faster — and loses no troops on either side. Gold can’t be transferred at all.