Corporate returns: Form 1120 and Form 1120-S
C-Corporations file Form 1120 and pay tax at the company level. S-Corporations file Form 1120-S and pass income to their shareholders. We prepare both.
- C-Corps and S-Corps
- K-1s for S-Corp shareholders
Two kinds of corporation
Form 1120 compared with Form 1120-S
| Form 1120 | Form 1120-S | |
|---|---|---|
| Who files | C-Corporations | S-Corporations |
| Who pays tax | The corporation, at 21% federal | Usually the shareholders, through K-1s |
| Usual due date | 15 April (calendar year) | 15 March (calendar year) |
| Foreign owners | Allowed. 25% foreign-owned corporations add Form 5472 | Non-resident aliens can’t be shareholders |
Our process
How we prepare your corporate return
Books check
We review your income, expenses and balance sheet.
Adjustments
We make the tax adjustments your return needs.
Forms and K-1s
We prepare the return and any K-1s.
Review
You approve before filing.
File
Federal and state returns filed.
Pricing
Corporation tax return
- Form 1120From $179
- Form 1120-SFrom $179
Final price depends on activity and schedules.
Required documents
What you need for Tax filing
Prepare these before you apply. Exact requirements depend on your situation, and we confirm them with you.
Documents
- Prior-year returns, if any
- Income records: W-2s, 1099s, 1042-S or platform reports
- Bank statements for the business
- Expense receipts and records
Information you’ll provide
- SSN, ITIN or EIN
- Residency status and days in the US
- Entity type and ownership
- Owner contributions and withdrawals (for Form 5472)
- The return you need depends on your residency and entity type.
- Some returns can’t be e-filed and are sent by mail or fax.
- Upload documents securely in your client portal or send them to us on WhatsApp.
Need your corporate return filed?
Send us your entity type and year-end and we’ll reply with a checklist.