Bank statements and credit card statements are the foundation. You need complete statements for every account used by the business during the cleanup period. These are non-negotiable because every transaction flows through them. If you’re missing statements, most banks let you download them online going back several years. Request paper copies if needed.

Loan documents matter more than people realize. Opening balances, amortization schedules, and payoff statements help separate principal from interest and get liability balances correct on your balance sheet. If you refinanced or paid off loans during the period, dig up those closing documents too.

Payroll records come next if you have employees. Year-end summaries, quarterly tax filings, and any reports from your payroll provider help verify wages, taxes, and employer contributions were recorded correctly. Payroll mistakes compound quickly and create problems with tax filings if they’re not caught.

Invoices and receipts are helpful but not always essential. They fill in gaps when a bank transaction isn’t clear. A $3,200 charge to a vendor could be equipment, materials, or professional services. The invoice tells the story. That said, don’t let missing receipts stop you from moving forward. A Boca Raton fractional CFO or experienced controller can often categorize transactions accurately using vendor names, amounts, and patterns.

Prior year tax returns and financial statements give your accountant a starting point. They show what ending balances were reported previously, which helps identify where things went off track. If you’ve never filed business taxes or your returns don’t match your books, that’s important to know upfront.

Asset purchase records help with depreciation. Major equipment, vehicles, and property need original purchase dates and amounts to calculate depreciation correctly. If you bought a truck three years ago and never recorded it, the cleanup should fix that.

Sales tax filings and state reports matter if you collect sales tax. These need to reconcile with what your books show. Discrepancies between filed returns and recorded sales create problems that surface during audits.

Gather what you can, but don’t wait until everything is perfect to start. Part of the financial records cleanup process involves identifying what’s missing and finding ways to work around gaps. An experienced accountant knows how to reconstruct information when documentation is incomplete.

The most important thing is organizing what you do have. Create folders by year and category. Even a rough organization saves time and money because your accountant isn’t digging through a box of mixed paperwork trying to find a single statement.