There are also differences in how GST can be claimed.
Operating Lease
No matter if you're on Cash or Accrual for GST purposes, you can only claim a portion of the GST with each lease payment.
Chattel Mortgage/Hire Purchase
Cash - A portion of the GST with each payment
Accruals - The entire amount upfront
Finance Lease / Loan
No matter if you're on cash or accruals, it's the whole amount upfront.
As Rob said, see an accountant. The best form of leasing arrangement for your situation will depend on a lot factors and how they inter-operate.
Operating Lease
No matter if you're on Cash or Accrual for GST purposes, you can only claim a portion of the GST with each lease payment.
Chattel Mortgage/Hire Purchase
Cash - A portion of the GST with each payment
Accruals - The entire amount upfront
Finance Lease / Loan
No matter if you're on cash or accruals, it's the whole amount upfront.
As Rob said, see an accountant. The best form of leasing arrangement for your situation will depend on a lot factors and how they inter-operate.