Kernrechtsfrage
When must medical expenses be deducted for state tax purposes: treatment date, invoice date, due date, or payment date?
Extrahierter Entscheid
For medical expenses, the relevant time is the payment date.
Extrahierte Begründung
The statute requires actual expenses borne by the taxpayer. Economic burden arises when the bill is paid, not when invoiced. Harmonization with federal tax practice also supports the payment-date rule.