Unstable angina is potentially serious, and chest pain is persistent, but blood tests do not show markers for heart attack. With NSTEMI, the blood tests suggest a heart attack, but most likely, injury to the heart is less serious than with a full-blown heart attack.
How long to keep records. You must normally keep records for at least 6 years from the end of the last company financial year they relate to. You may need to keep records longer if: 1  they show a transaction that covers more than one of the companyâs accounting periods.2  the company has bought something that it expects to last more than 6 years, like equipment or machinery. 3  you sent your Company Tax Return late.ou must also keep any other financial records, information and calculations you need to complete your Company Tax Return. This includes records of all money: 1  spent by the company, eg receipts, petty cash books, orders and delivery notes.
How long your organisation needs to keep it's records. Your organisation must hold all records for seven years, even if you cease operating (except for incorporated organisations that have been wound up and dissolved).or GST you do not need to hold a tax invoice for items costing less than $50, but you do need to maintain a record of such payments. For income tax, you should have invoices for all expenses, whatever the amount.