What Information Does My Accountant Need To Prepare My Tax Return?
Learn which tax forms and business records your accountant needs to prepare your small business tax return.
- Gathering your financial records before tax season helps your accountant prepare an accurate return and reduces delays.
- Most accountants will need business identification information, financial statements, income and expense records, payroll documents, and other tax-related records.
- Hiring an accountant can save time, reduce costly errors, and help your business maximize eligible tax deductions.
Preparing your small business taxes is easier when you have the right information ready. Providing your accountant with complete and accurate records upfront can help reduce delays, lower preparation costs, and minimize follow-up questions.
In this guide, we’ll cover the key documents and information your accountant needs to complete your small business tax return, along with practical tips to help streamline the process.
Table of Contents
What Your Accountant Needs To File Small Business Income Taxes
When preparing your business tax return, your accountant will need records that verify your income, expenses, assets, and liabilities. Gathering these documents in advance can reduce preparation time, minimize follow-up questions, and help ensure an accurate tax return.
Business Identification Information
Provide the identifying information used to file your return:
- Legal business name
- Business address
- Employer Identification Number (EIN)
- Social Security Number (SSN), if applicable to your business structure
- State tax identification number, if applicable
Note: The information you provide must match what’s on file with the IRS to avoid processing delays.
Prior Year Tax Return
Bring a copy of your most recent business tax return. This helps your accountant:
- Understand your filing history
- Review previously claimed deductions
- Identify carryovers and recurring tax items
Annual Financial Reports
Your accountant will need year-end financial reports, typically generated from your accounting software.
| Report | Purpose |
|---|---|
| Profit & Loss Statement | Verifies total income and expenses |
| Balance Sheet | Confirms assets, liabilities, and equity |
| Statement of Cash Flows | Tracks how cash moved through the business |
Some businesses may need additional reports based on industry or structure.
Required Business Tax Forms
The forms your accountant files depend on your business structure.
| Business Type | Common Forms |
|---|---|
| Sole Proprietor/Freelancer | Form 1040, Schedule C |
| Partnership | Form 1065 |
| S Corporation | Form 1120S, Schedule K-1 |
| LLC | Varies based on tax classification |
Filing deadlines may vary by entity type.
Income Records
Provide documentation that supports the income reported on your financial statements, including:
- Bank statements
- Deposit records
- Sales invoices or receipts
- Forms 1099-K, 1099-NEC, or 1099-MISC, if applicable
Expense Records
Your accountant will use these records to verify deductible expenses:
- Receipts and bills
- Bank and credit card statements
- Mortgage interest or property tax records, if applicable
Deduction-Specific Documentation
Some deductions require additional detail beyond standard receipts.
| Deduction Type | Required Information |
|---|---|
| Home Office | Square footage and related expense records |
| Vehicle Use | Mileage log and vehicle expense receipts |
| Travel & Meals | Receipts and travel documentation |
| Charitable Contributions | Donation receipts and acknowledgments |
Business Asset Information
Provide records for assets bought, sold, or depreciated during the year, including:
- Purchase and sale documentation
- Depreciation schedules or fixed asset reports
- Asset purchase invoices
Business Loan Information
If you obtained or repaid loans during the year, bring:
- Loan agreements
- Payment and interest records
This helps confirm liabilities and interest deductions.
Payroll Records
If you have employees or contractors, your accountant will need payroll documentation, such as:
- W-2s and W-3s
- 1099 forms
- Payroll summaries
- Employee benefit and bonus records, if applicable
Payroll software can usually generate these reports quickly.
Inventory Totals
If your business reports Cost of Goods Sold (COGS), provide:
- Opening inventory balance
- Ending inventory count
These figures are required to calculate COGS accurately.
Investment & Ownership Activity
Bring records related to:
- Stocks, bonds, or other business investments bought or sold
- Owner contributions, distributions, or withdrawals
Should Your Business Hire An Accountant?
You aren’t required to hire an accountant to file your business taxes, but doing so can save time, reduce errors, and help ensure your return is accurate — especially as your business grows or your tax situation becomes more complex.
Beyond tax preparation, an accountant can also help with financial planning, cash flow management, tax strategy, and other decisions that support your business over the long term.
When Hiring An Accountant Makes Sense
Consider working with an accountant if your business is:
- Starting a new business or changing its legal structure
- Experiencing significant growth in revenue or expenses
- Hiring employees or managing payroll
- Purchasing or selling business assets
- Planning a major expansion or financing
- Struggling with cash flow or profitability
- Responding to an IRS notice, audit, or other tax issue
How To Find A Qualified Accountant
Referrals from trusted business owners, attorneys, or financial professionals are often the best place to start.
You can also search professional directories, such as the American Institute of Certified Public Accountants (AICPA) or the IRS Directory of Federal Tax Return Preparers. Some accounting software providers also maintain accountant referral programs.
The Bottom Line On What To Bring To Your Tax Appointment
Gathering your financial records before meeting with your accountant can make tax preparation faster, reduce follow-up questions, and help ensure your return is completed accurately.
To stay organized, use our free small business tax preparation checklist to confirm you have everything needed before your tax appointment.



