According to Polish low – The Personal Income Tax Act and The Corporate Income Tax Act user should have an oportunity can modify depreciation profile during the fix assets’ life.

When I try to change depreciation profile: Go to Fixed assets > Fixed assets > Fixed assets > Books > Depreciation profile field (change a value), the system displays the error: Cannot edit depreciation profile if Depreciation, Depreciation adjustment, Special depreciation allowance, Extraordinary depreciation journals or transactions exist.