Audit preparation should start long before the auditors arrive. The nonprofits that have smooth audits are the ones maintaining clean records throughout the year, not scrambling to pull everything together in the weeks before fieldwork begins.

Documentation is the foundation. Every transaction needs supporting evidence that an auditor can trace. Invoices, receipts, contracts, grant agreements, board minutes approving major decisions. If you can’t produce documentation for a transaction, auditors will flag it. Keep a consistent filing system and make sure nothing gets lost during the year.

Monthly reconciliations are essential. Bank accounts, credit cards, and any clearing accounts should be reconciled every month without exception. Auditors will test reconciliations going back through the year. If they find months that weren’t reconciled or reconciliations with unexplained differences, that raises questions about the reliability of your records.

Grant tracking deserves special attention. Restricted funds must be tracked separately and used according to donor or grantor requirements. Auditors will verify that restricted contributions were spent appropriately and that you released restrictions only when conditions were met. Keep detailed records of how grant funds were used and maintain supporting documentation for every grant-related expense.

Internal controls matter even for small organizations. Segregation of duties means separating the person who authorizes transactions from the person who records them, and both from the person who reconciles accounts. Small nonprofits often have limited staff, making perfect segregation impossible. But auditors expect you to implement reasonable controls given your size. Having the executive director review and approve bank reconciliations prepared by the bookkeeper is a basic control that many organizations overlook.

Functional expense allocation needs to be documented. Nonprofits report expenses by function: program services, management and general, and fundraising. Auditors want to see the methodology you use to allocate salaries, occupancy, and other shared costs across these categories. Document your allocation methods and apply them consistently.

Prepare supporting schedules in advance. Don’t wait for auditors to request a schedule of accounts receivable, prepaid expenses, fixed assets, or accounts payable. Have these ready before they arrive. Auditors appreciate organizations that are prepared, and it often reduces your audit fees.

Board minutes and governance documents should be organized and accessible. Auditors review meeting minutes to verify that significant transactions were properly authorized. Ensure minutes are complete, approved, and filed throughout the year.

If your records are behind or disorganized, consider bookkeeping cleanup and catch-up services before the audit. Walking into an audit with unreconciled accounts or missing documentation creates problems that could have been avoided. Getting everything in order beforehand leads to a cleaner audit opinion and fewer findings.