How long should a business keep tax records?

Connecticut Business Tax Record Retention Guidelines

Maintaining proper tax records is essential for Connecticut businesses to ensure compliance and streamline audits or reporting. As of 2026, follow these operational guidelines for retaining tax documents.

Recommended Retention Periods for Tax Records

• Federal and State Tax Returns: Keep copies of all filed tax returns and supporting documents for at least 7 years. This covers potential audits and amendments.
• Payroll Records: Retain payroll tax filings, employee wage records, and related documentation for at least 4 years. This supports compliance with Connecticut payroll tax and employment regulations.
• Sales and Use Tax Records: Maintain sales tax returns, exemption certificates, and related invoices for 4 years, matching Connecticut Department of Revenue Services review periods.
• Business Expense and Income Documentation: Preserve receipts, invoices, bank statements, and expense reports for 7 years to support deductions and income reporting.

Operational Tips for Recordkeeping

• Use a consistent filing system: Organize records by tax year and document type for quick retrieval during audits or tax preparation.
• Leverage digital storage: Consider scanned copies and cloud storage solutions that comply with Connecticut recordkeeping standards to reduce physical storage needs.
• Automate reminders: Set calendar alerts to review and securely dispose of outdated tax records after the retention period expires.
• Coordinate with bookkeeping and payroll: Ensure accounting and payroll systems align with retention policies to maintain comprehensive records.

Additional Compliance Considerations

Connecticut businesses should also monitor changes in tax reporting requirements and retention rules issued by the Connecticut Department of Revenue Services. Staying current helps avoid penalties and supports smooth operational audits.