- May 1, 2026
- Posted by:
- Category: Tax ID Number
What Records Should You Keep for Tax Purposes?
Why Tax Recordkeeping Matters (Even When You Have a Tax ID Number)
Your Tax ID Number (often an EIN for a business, nonprofit, trust, or estate) connects your organization to tax filings, payroll reporting, information returns, and banking activity. Keeping complete records helps you:
- Prepare accurate federal and state tax returns
- Support deductions, credits, and exclusions
- Respond efficiently to IRS or state tax notices
- Track basis, depreciation, and asset history
- Maintain clean books for lenders, investors, grants, or audits
Core Documents to Keep for All Taxpayers
Identity and Tax ID Number Records
- Your EIN assignment confirmation (and any related correspondence)
- Legal name, “doing business as” (DBA) filings, and entity formation documents
- Ownership records (members/shareholders/partners) and changes over time
- Bank account opening documents that reference the EIN
Income Records
- Sales invoices and receipts
- Deposit records and bank statements
- Payment processor reports (card, ACH, online platforms)
- Forms received such as 1099s (as applicable)
- Records of refunds, chargebacks, and allowances
Expense and Deduction Records
- Vendor invoices, bills, and receipts
- Proof of payment (canceled checks, bank/credit card statements)
- Travel, meals, and entertainment documentation (date, place, business purpose, attendees when required)
- Home office or shared space documentation (method used, measurements, allocation basis)
- Insurance invoices and policy declarations
Asset and Depreciation Records
- Purchase documents for equipment, vehicles, furniture, and software
- Placed-in-service dates and business-use percentage support
- Depreciation schedules and prior-year tax return workpapers
- Improvement and repair records (to distinguish capital improvements from current expenses)
- Disposal records (sale, trade-in, scrapped assets) including proceeds and dates
Business and Self-Employed Records to Keep
Payroll and Contractor Records
- Payroll registers, paystubs, and timekeeping records
- Payroll tax filings and payment confirmations
- Employee onboarding records (as applicable)
- Contractor agreements, invoices, and pay history
- Year-end reporting support (as applicable)
Business Banking and Accounting Records
- Monthly bank statements and reconciliations
- Credit card statements used for business purchases
- General ledger, chart of accounts, and journal entries
- Loan agreements, amortization schedules, and interest statements
- Merchant account statements and processing fees
Sales Tax and Other State/Local Tax Records
- Sales tax returns and payment confirmations
- Resale certificates and exemption certificates (issued and received)
- Jurisdictional rate support and taxable/nontaxable sales breakdowns
- Business license and local tax filings, if applicable
Nonprofit and Tax-Exempt Organization Records
Organizations using an EIN for exempt activities should keep additional governance and compliance records to support transparency and reporting.
Governance and Program Records
- Articles of incorporation, bylaws, and amendments
- Board meeting minutes, resolutions, and key policies
- Grant agreements, donor restrictions, and program budgets
- Program service documentation supporting mission-related activities
Donations and Fundraising Records
- Donation logs (cash and non-cash) with date, amount, and donor details
- Acknowledgment letters and donor communications
- Valuation support for non-cash contributions when required
- Fundraising contracts and event records
If you’re organizing or evaluating exempt structures, review nonprofit organization types to align recordkeeping with your entity’s activities and reporting needs.
How Long Should You Keep Tax Records?
Retention periods depend on the type of record and what it supports. A practical approach is to keep records long enough to support the tax return items they relate to, plus any extended needs for assets, payroll, and entity documents.
Practical Retention Guidelines
- Permanent: EIN confirmation, formation documents, ownership records, major contracts, and key policy documents
- Long-term: Asset purchase records and depreciation schedules (keep for the life of the asset plus additional time after disposal)
- Multi-year: Filed tax returns and supporting workpapers, key income and expense support, and bank statements tied to reported items
- Payroll: Keep payroll tax filings, wage records, and related support for a longer period due to overlapping federal and state requirements
Best Practices for Organizing Tax Records
Create a Simple, Repeatable Filing System
- Separate folders by year, then by category (Income, Expenses, Payroll, Assets, Taxes, Banking)
- Use consistent naming conventions (YYYY-MM-DD Vendor Amount Category)
- Store digital copies of receipts and match them to bank transactions
Keep Records in a Form You Can Search
- Scan paper receipts and save as searchable PDFs when possible
- Back up files in at least two locations (cloud + local)
- Restrict access to sensitive documents (EIN letters, payroll, banking)
Reconcile Monthly to Prevent Year-End Scrambling
- Reconcile bank and credit card accounts each month
- Review uncategorized transactions and missing receipts
- Track mileage and reimbursable expenses contemporaneously
When Your Tax ID Number Changes or Your Business Changes
Recordkeeping becomes especially important during transitions such as adding owners, changing entity type, moving states, opening new bank accounts, or starting payroll. Keep a timeline file with:
- Effective dates of changes (ownership, address, legal name)
- Copies of filed amendments and confirmations
- Updated banking and vendor forms
- New account setups tied to the EIN
If you need to start or expand operations and require an EIN, you can use an online Tax ID number application workflow to gather the details you’ll also want to preserve in your permanent records.
FAQ: What Records Should You Keep for Tax Purposes?
1) What is the single most important tax record to keep for an EIN?
Your EIN assignment confirmation and any related correspondence. Keep it permanently and store a secure digital copy.
2) Are bank statements enough to prove business expenses?
Bank and credit card statements help show payment, but receipts and invoices support what was purchased and why it was business-related. Keep both whenever possible.
3) What should I keep for meals and travel deductions?
Keep the receipt plus a note (or log) with date, location, business purpose, and who attended (when applicable). For travel, keep itineraries, lodging receipts, and transportation documentation.
4) What records do I need for equipment or vehicle purchases?
Keep the purchase agreement, invoice, proof of payment, placed-in-service date, and documentation of business-use percentage. Also retain depreciation schedules and disposal records when you sell or retire the asset.
5) Do I need to keep copies of filed tax returns?
Yes. Keep complete copies of filed federal and state returns along with the supporting schedules and key workpapers so you can answer questions and prepare future returns consistently.
6) What should I keep for independent contractors I pay?
Maintain contracts, invoices, payment records, and contact details. Keep a clear audit trail showing the business purpose of the services and the dates paid.
7) What records should a nonprofit keep for donations?
Keep donation logs, deposit records, donor restrictions (if any), and copies of acknowledgment letters. For non-cash gifts, retain descriptions and any required valuation support.
8) How should I store receipts: paper or digital?
Digital storage is often easier to search and back up. Scan or photograph receipts promptly, store them in organized folders by year and category, and keep sensitive files access-controlled.
9) What if I lose receipts—can I still deduct the expense?
You should reconstruct records using invoices, email confirmations, vendor statements, and bank records, then document the business purpose. Stronger documentation reduces the chance of issues later.
10) What should I keep when I change my business name or address?
Keep a change log with effective dates, copies of amendments or filings, updated bank documentation, and any notices or confirmations tied to your EIN and accounts.