X.TAX Business Tax
X.TAX Business Tax provides online federal and state business tax e-filing for LLCs, partnerships, S corporations and C corporations.
What X.TAX Business Tax is
X.TAX Business Tax provides online federal and state business tax e-filing for LLCs, partnerships, S corporations and C corporations. It supports Forms 1065, 1120-S, 1120 and 1041. Automated workflows handle calculations, form mapping and validation, while AI-driven checks flag missing or inconsistent information before filing. QuickBooks and Xero integrations can import financial data such as income, expenses and balance-sheet information.
Users can access CPAs and Enrolled Agents for questions, reviews or assisted filing. RiskScore highlights potential IRS issues, and Audit Protection covers IRS and state audits throughout the tax year. The service supports federal and state e-filing, but lists zero included state returns. X.TAX says users can start for free and pay when ready to file; Business Tax Filing is listed at $159, paid once. It is headquartered in Austin, Texas, and is available on the web and through an API. The API offers filing for Forms 1065, 1120, 1120-S, 7004 and 4868 to products embedding those services.
Good
- Supports LLCs, partnerships, S corporations and C corporations.
- Imports financial data from QuickBooks and Xero.
- AI checks flag missing or inconsistent information.
- CPA and Enrolled Agent help is available.
- Federal and state e-filing are supported.
Watch out
- No free plan, though filing can start free.
- Zero state returns are included.
- Business Tax Filing costs $159, paid once.
- Pricing lists a 49-dollar starting point.
Who it suits
X.TAX suits businesses filing supported entity returns online, including those importing bookkeeping data from QuickBooks or Xero. Its API is for product developers embedding supported filing forms.
Verdict
X.TAX brings business e-filing, bookkeeping imports and professional help into one online service. Check the listed filing prices and state-return terms against the returns you need to submit.
Plans and prices
From X.TAX Business Tax's own pricing page, checked 1 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Tax Extension | $14.99, paid once | For each Extension Filing · $14.99 |
| State Business Tax Filing | $49, paid once | Filing assistance · Form checklist · Continuous support · Audit information · $49/per filing |
| Tax Expert Review | $59, paid once | Add-on · $59/per filing |
| Audit Protection | $99, paid once | Add-on · $99/per filing |
| State Annual/Franchise Tax Reporting | $129, paid once | Add-on · $129/per filing |
| Business Tax Filing | $159, paid once | Filing assistance · Form checklist · Continuous support · Audit information · $159/per filing |
The facts
Each one read from X.TAX Business Tax's own pages, with the date it was checked.
What it does
- Accounting integrations
- X.TAX integrates with QuickBooks and Xero to import financial data such as income, expenses, and balance-sheet information.checked 1 Oct 2026
- AI validation
- AI-driven validation checks reduce errors and flag missing or inconsistent information before filing.checked 1 Oct 2026
- API
- The developer platform offers an API for embedding Forms 1065, 1120, 1120-S, 7004, and 4868 filing into products.checked 1 Oct 2026
- API security
- The developer platform states that its infrastructure uses AES-256 encryption at rest, TLS 1.3 in transit, and SOC 2 Type II certified infrastructure.checked 1 Oct 2026
- Audit protection
- Audit Protection covers IRS and state audits throughout the tax year.checked 1 Oct 2026
- Automation
- Automated workflows manage calculations, form mapping, and validation.checked 1 Oct 2026
- Expert help
- Users can access CPAs and Enrolled Agents for questions, reviews, or assisted filing.checked 1 Oct 2026
- IRS authorization
- X.TAX describes itself as an IRS-authorized e-filing platform.checked 1 Oct 2026
- Risk monitoring
- RiskScore highlights potential IRS issues before they result in penalties.checked 1 Oct 2026
- Security
- The privacy policy says data is stored in the United States with encryption, access controls, secure servers, and regular security assessments.checked 1 Oct 2026
- Support
- Support is available by email at [email protected], with listed business hours Monday through Friday, 8AM to 6PM CST.checked 1 Oct 2026
- Supported entities
- The platform supports LLCs, partnerships, S corporations, and C corporations.checked 1 Oct 2026
- Supported forms
- X.TAX supports Forms 1065, 1120-S, 1120, and 1041.checked 1 Oct 2026
- What it does
- X.TAX provides online federal and state business tax e-filing services.checked 1 Oct 2026
Money
- Free start
- The homepage says users can start for free and pay only when ready to file.checked 1 Oct 2026
The company
- Headquarters
- Austin, Texas, United Stateschecked 28 Sep 2026
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