Short answer: From signing or when contract says risk passes. Bank requires proof before releasing funds. Do not wait.
You need insurance from the moment you sign the sale and purchase agreement, or from the date the contract says risk passes to you. Usually this is at signing or settlement. Your bank will require proof of insurance before releasing mortgage funds. Do not wait until moving day. Get quotes early.
Contract Date: 1 June
Insurance Start: 1 June
Bank Requirement: Proof required by 15 June
Rebuild Cost: $450,000
Annual Premium: $1,200