Audit Documentation
An audit is far less stressful when your records are already organized. This guide covers how to keep your deductions defensible from the start, so a request for proof doesn't turn into a scramble.
01Organize by category and year
Group your records by deduction category (vehicle, home office, meals, supplies) and by tax year. When the IRS asks about a specific deduction, you can pull exactly that category and year without sorting through everything.
02Keep the source documents
A spreadsheet summary isn't enough on its own. Keep the receipts, logs, invoices, and bank and credit card statements that back up each number. The IRS wants the original source, not just your totals.
03Be ready to explain business purpose
For meals, travel, and vehicle use, the contemporaneous record of business purpose is what holds up. A log entry that says 'client meeting' with a date and attendees is defensible; a year-end reconstruction is not.
Build the habit of recording the purpose when the expense happens.
04Keep digital backups
Scan or photograph paper receipts, and store them with your tax records. Paper fades and gets lost; a digital copy means a lost wallet receipt doesn't cost you a deduction.
Records checklist
A summary of every record mentioned on this page. Keep these with your tax return.
- Category and year organizationRecords grouped by deduction type and tax year.
- Source documentsReceipts, logs, invoices, and statements behind every deduction.
- Business-purpose logsContemporaneous records for meals, travel, and vehicle use.
- Digital backupsScanned copies of paper receipts and records.
Go deeper on the rules behind these deductions
Educational guidance only, not tax advice. Talk to a tax professional about your situation.