Business tax returns, prepared and e-filed
We prepare your Form 1065, 1120-S or 1120 and every state return that goes with it. You walk through the return with us before it's filed, and you see the IRS acceptance. K-1s go to your owners with a short note explaining them.
Updated November 2026
Which business tax return do I file?
It depends on how your business is taxed, which isn't always how it's set up with the state. Pick yours.
Schedule C
Filed with your personal Form 1040. The LLC files nothing separate unless it elects corporate tax.
Due April 15, 2027
For the 2026 calendar year. Form 4868 extends filing to October 15.
Watch the profit
Once profit grows, an S-Corp election can cut self-employment tax.
Form 1065
For partnerships and multi-member LLCs, with a K-1 for each partner.
Due March 15, 2027
Form 7004 extends filing to September 15.
Late costs per partner
Filing late without an extension brings a penalty for each partner, for each month, even with no tax due.
Form 1120-S
For S-Corps and LLCs taxed as one, with a K-1 for each shareholder.
Due March 15, 2027
Form 7004 extends filing to September 15.
Salary first
Owners who work in the business need a reasonable salary through payroll.
Form 1120
The corporation pays its own federal tax at a flat 21% rate.
Due April 15, 2027
Form 7004 extends filing to October 15. Tax is still due in April.
Startups and Delaware
Most venture-backed companies are C-Corps. We file the Delaware franchise tax too.
Form 5472 + pro forma 1120
Every year, even with no income. A missed form can cost $25,000.
Due April 15, 2027
Form 7004 extends filing to October 15.
We handle it in-house
See Form 5472 filing for what's included.
What does a business return cost?
A fixed price for the whole return, not just the federal form. No monthly plan needed.
Simple
Up to 2 owners, one state
$650
- Form 1065 or 1120-S
- A K-1 for each owner
- One state return
Standard
More owners or a few states
$1,100
- Everything in Simple
- Up to 5 owners
- Up to 3 state returns
Complex
C-Corps, inventory or many states
from$1,800
- Form 1120, 1065 or 1120-S
- More owners, inventory or several entities
- 4 or more state returns
Every tier includes
- The federal return and the state income or franchise returns your tier covers
- A K-1 for each owner, with a short explanation
- Depreciation schedules for equipment, vehicles and property
- A review call before anything is filed
- E-filing, with the acceptance saved in your portal
- An extension on Form 7004 if the books aren't ready
Priced on top
- Books that need catching up first
- Amended and prior-year returns
- Owners' personal returns, unless you're on the Complete plan
- Formal representation in an IRS exam
Not sure which tier fits? We confirm it, and the fixed price, on a free call before any work starts.
How do we get from books to accepted?
If we already keep your books, most of this happens without you.
Books ready
We close the year, or review the financials you send.
Short checklist
1099s, loans, assets and ownership changes.
Review with you
We walk through the draft before you sign.
E-file
Federal and state filed, K-1s sent.
Business return questions, answered.
Can't see your question? Ask it on a free 30-minute call.
Get a fixed quoteSources: IRS Publication 509, Form 7004
Free tools: 2026 tax brackets, Form 1120-S guide, Form 1065 guide, Form 7004 extensions
Can you file my return if my books are a mess?
Yes, after we clean them up. We quote the catch-up and the return together, fix the books first and prepare the return from numbers that tie to the bank.
Do you file the state returns too?
Yes. Every state income, franchise or information return the business owes is part of the price.
What if the return can't be ready in time?
We file Form 7004 for an extension. It gives more time to file, not to pay, so C-Corps still pay by the original date and owners keep their personal estimates on time.
I switched from another preparer. Is that a problem?
Not at all. We need last year's return and depreciation schedules. If you can't get them, we can usually rebuild what we need from IRS transcripts and your records.
What if the IRS questions the return later?
Send us the letter. We explain it and prepare the response for you to sign.
Tell us what's messy. We'll tell you what it takes.
Tell us what you need and get a fixed price before any work starts. No pressure and no contract.