Ask the Experts – The Fundamentals of Tax Filing

Published on
Jun 27, 2025
Ask the Experts – The Fundamentals of Tax Filing

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Question:​ As a restaurant owner, I want to make sure I’m properly prepared for tax season. What documentation should I be keeping to make the tax-filing process smooth and accurate?

A: Thanks for reaching out, as this is a common question. To ensure a smooth and accurate tax-filing process, it’s essential to compile and maintain the following documentation throughout the year:

1. Tax Identification Numbers:

    • Federal Employer Identification Number (EIN)
    • State Business Identification Number (BIN)
    • Personal Social Security Number (if applicable)

2. Previous Tax Returns:

    • Copies of the prior year’s tax returns (consider keeping up to three years of prior returns for reference).

3. Financial Records:

Accounting Spreadsheets, Ledgers, Journals and Reports:

    • Balance sheet
    • Income statement

Business-Related Expenses:

    • General office supplies
    • Recurring operational costs (e.g., rent, utilities, subscription services)
    • Business-related entertainment, travel and meals
    • Marketing and advertising costs
    • Professional fees (e.g., attorneys, consultants, accountants, bookkeepers)
    • Insurance policy details
    • Equipment and asset list

4. Home Office Deductions (if applicable):

    • Total square footage of the home and the square footage dedicated to office space
    • Mortgage interest or rent payments
    • Utility costs (e.g., gas, electric, internet, telephone)
    • Home insurance policy/expenses

5. Additional Documentation (if not using bookkeeping services or software):

    • Detailed invoices
    • Bank statements and credit card receipts
    • Deposit slips
    • Mileage logs

6. Employee Documentation (if applicable):

    • W-4 forms: Employee tax withholding selections
    • I-9 forms: Verification of employee legal working status
    • W-2 forms: Wage and tax statements for each employee

7. Independent Contractor Documentation (if applicable):

    • 1099-MISC forms: Summary of fees and payments for nonemployees

About the Expert

With decades of small business ownership, teaching and advising experience, Sue Meyer works alongside the skilled team of business advisers at Central Oregon Community College’s Small Business Development Center.

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