(f) Kanye, an offshore RLWT person, has sold land in New Zealand. The sale proceeds are taxable under the brightline test. Kanye purchased the property at a cost of $750,000 and sold it for $800,000. Kanye has a $400,000 registered mortgage on the property with the BNZ in New Zealand, and has no outstanding rates. The purchaser paid a deposit of $60,000 in January 2018, and will pay the balance of the purchase price in March 2018. Kanye has a conveyancer who will be the paying agent in relation to the RLWT. When does the RLWT obligation arise, and how much RLWT is payable?