Tax MiniMiser: Easy Tax Record Keeping System Written tax recordkeeping system Easily tracks business income, expenses, receipts, mileage, & profitability with audit-proof records 12 receipt envelopes for "Vehicle Mileage & Expense Record", plus instruction sheet in plain English 12 receipt envelopes for "Business Income & Expense Record", plus instruction sheet in plain English 20-column "Annual Business Summary of Income & Expense" -- Enter the subtotals from each envelope