Tax Recordkeeping Best Practices for Individuals and Businesses Facing Increased IRS Scrutiny

Good tax reporting starts with records. For both individuals and businesses, the most common filing problems arise not because the law is unclear, but because the taxpayer cannot substantiate income, deductions, credits, basis, or payment history when the return is prepared or later examined.

For individuals, the baseline file should include Forms W-2, Forms 1099, Forms 1095-A where Marketplace coverage exists, records supporting deductions and credits, and prior-year return information. Taxpayers should also preserve proof of estimated tax payments and withholding, especially where section 6654 penalty issues may arise or where withholding timing matters.

For taxpayers claiming the premium tax credit, recordkeeping is especially important because Form 8962 reconciliation depends on household income, tax family composition, enrollment premiums, applicable SLCSP premiums, and advance credit payments. Taxpayers should retain Form 1095-A, Marketplace correspondence, records of changes in circumstances reported to the Marketplace, and documentation supporting any special allocation or exception positions.

For rental property owners, records should distinguish rental income from deposits, separate repairs from capital improvements, and track basis, depreciation, and placed-in-service dates. Publication 527 also makes clear that owners need records supporting allocation between rental and personal use where a dwelling unit has mixed use, because that allocation affects both current deductions and carryforwards.

Businesses should maintain records that support both income inclusion and deduction entitlement. IRS guidance stresses reviewing returns for completeness and accuracy, keeping records that support reported amounts, and responding promptly to notices requesting payment, information, or corrective action. Electronic filing and organized records reduce the risk of omissions and processing delays.

Where payroll-related deductions or credits are involved, businesses should preserve wage records, benefit-plan documentation, and reporting support. That is increasingly important for employers dealing with qualified tips, qualified overtime compensation, paid family and medical leave credits, and employer-provided childcare credits (Grant Thornton).

A practical best-practices framework is:

• retain source documents, not just summaries;
• reconcile tax forms to books and bank records before filing;
• preserve proof of payment, not merely invoices;
• maintain basis and depreciation schedules year over year;
• document changes in family status, residence, insurance coverage, and business structure when those changes affect tax treatment;
• keep copies of filed returns, elections, and correspondence with the IRS or Marketplace.

The core point is straightforward: stronger records improve return accuracy, reduce refund delays, support deductions and credits, and put the taxpayer in a materially better position if the IRS later questions the filing.