Step one: separate business and personal money
Use a dedicated business bank account and card. Mixed finances are the most common reason records fall apart.
Open a business checking account and run all revenue and expenses through it. Pay yourself with a clear transfer, either owner draw or payroll, depending on your entity. If something personal slips onto a business card, note it and fix it in your books.
Separation also protects limited liability and simplifies financing. See separating business and personal finances.
Step two: keep proof for every expense
A deduction needs support. Save a receipt or invoice, note the business reason and record the date and amount.
For each expense, record who was paid, what was bought and why. Digital copies are fine. Photograph receipts the day you get them and file them by month or category.
- Meals and travel need extra detail: who, where, purpose.
- Vehicle use needs a mileage log.
- Home-office claims need measurements and records.
Read how to track business expenses and what counts as a travel expense. Ask your accountant what the IRS requires for your situation.
Step three: reconcile your books every month
Match your accounting records to bank and card statements monthly. Small errors caught early do not grow into big ones.
Monthly reconciliation takes an hour or two once you have the habit. Compare every bank line to a recorded transaction. Investigate anything unexplained. Save the monthly financial reports, as described in financial reports every month.
Good bookkeeping also helps when a funder asks for statements. See bookkeeping tips.
Step four: get payroll and worker classification right
Payroll errors and misclassified workers draw attention and penalties. Keep payroll filings and deposits on time and classify workers correctly.
Payroll taxes are held in trust for the government. Deposit them on schedule and file the required forms. Check whether workers should be employees or contractors under IRS rules, not just by what you call them. Learn the basics in payroll vs. income taxes.
When unsure, ask a CPA or the IRS guidance on worker classification.
Step five: file and pay on time, and keep copies
Timely filing avoids penalties and keeps you out of the late-filer pile. Keep complete copies of everything you file.
Make a calendar of deadlines for income tax, estimated payments, sales tax, payroll and annual state filings. If you cannot pay in full, file anyway and contact the tax agency about options. Learn what unfiled returns can mean in how far back the IRS can go.
For how long to keep records, check how long to keep business records and confirm with your accountant.
Step six: review once a year with a professional
A yearly review with a CPA catches mistakes, confirms your deductions are supported and keeps you current as rules change.
Ask your accountant three questions each year: What looks unusual in my return? Which deductions need better documentation? What changed in the rules that affects me? Fixing weak spots before filing is easier than defending them after.
Keep a simple audit folder with prior returns, bank statements, payroll records and major contracts. If a notice arrives, respond on time and bring your accountant in right away.
Clean records also help you borrow
The same records that satisfy an auditor also show a funder a stable business. Clean statements can speed up approval.
Funders reading bank statements look for steady deposits and few overdrafts. A complete file at ROI Funder is the application plus three months of business bank statements. We consider 500+ FICO, 6+ months in business and $20,000+ monthly revenue. See the loan application checklist or apply here with a soft credit pull.
Frequently asked questions
Can a business be completely audit-proof?
No. Audits can be random. You can, however, keep records clean enough that an audit is routine and low risk.
What records should I keep?
Bank statements, receipts, invoices, payroll records, tax returns and contracts. Ask your accountant how long to retain each.
Do I need an accountant?
Not legally, but a CPA can spot problems and confirm your records meet current requirements.
What should I do if I get an audit notice?
Read it carefully, respond by the deadline and contact your accountant or a tax professional immediately.
