🇺🇸United States Tax Guide

Company Tax Return Guide - United States

Filing a company tax return is an annual obligation for all incorporated businesses. The return reports your company's taxable income, deductions, tax offsets and the resulting tax payable. Accuracy is critical - errors can trigger audits and penalties. Having clean, well-organised books throughout the year is the single most important factor in making your company tax return straightforward and accurate.

Step-by-Step Process

  1. 1

    Ensure all financial records are up to date and reconciled for the full year

  2. 2

    Prepare financial statements - profit and loss statement and balance sheet

  3. 3

    Calculate taxable income (accounting profit adjusted for tax differences)

  4. 4

    Identify and calculate all available tax deductions and offsets

  5. 5

    Complete the company tax return form for your jurisdiction

  6. 6

    Lodge the return by the due date (or engage a tax agent for an extended deadline)

  7. 7

    Pay any tax owing or note the refund amount

  8. 8

    Keep all supporting documentation for the required retention period

United States Compliance with IRS

Businesses in United States operating under the Sales Tax + Federal system must meet these compliance requirements set by IRS:

Multi-state sales tax tracking
1099 contractor payment tracking
IRS Schedule C preparation support
Quarterly estimated tax calculations
State-specific compliance (B&O, franchise tax, etc.)
Tax codes suggested and written back to Xero with each approved change

Common Mistakes to Avoid

Not reconciling all accounts before preparing the tax return

Missing deductions that could reduce taxable income

Confusing accounting profit with taxable income

Not making adequate tax provision payments throughout the year

Filing late and incurring penalties

Not engaging a tax professional for complex situations

How SortBooks Automates This for United States Businesses

SortBooks connects to your Xero account and finds transactions sitting in catch-all accounts. AI suggests the right account and tax code, learning from your own past coding. You approve it and SortBooks updates Xero. Reconciled transactions are locked by Xero, so those stay in SortBooks with an Open in Xero link.

AI Categorisation

AI suggests a category and Sales Tax + Federal code for each transaction. You approve it before anything changes in Xero.

GST/VAT Estimate

Growth and above get a quarterly GST/VAT estimate to check before you lodge with IRS.

AI CFO

Ask about your P&L, cash and who owes you, using live Xero data. Every dollar figure is checked against Xero.

Frequently Asked Questions

When is my company tax return due?

Due dates vary by country. Australia: typically 28 February for companies (later if using a registered tax agent). UK: 12 months after the end of the accounting period. US: 15 April (calendar year) or 15th day of 4th month after year-end. Using a tax agent often extends your deadline.

What is the company tax rate?

Rates vary by country and sometimes by company size. Australia: 25% for base rate entities, 30% for others. UK: 25% (19% for small profits). US: 21% federal. Canada: varies by province. Singapore: 17%. Many countries offer reduced rates for small businesses.

How does SortBooks help with company tax returns?

SortBooks helps keep your Xero coding clean year-round, so your accountant receives tidier data for tax return preparation. It suggests the right account for expenses in catch-all accounts, and you approve each change.

Get your Sales Tax + Federal coding right with SortBooks

AI suggests, you approve, SortBooks updates Xero. Try it free for 14 days.

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