File Your Business Taxes
Form 1120, 1065, or 1120-S: upload your documents and let our team handle the rest. Every return is CPA-reviewed for accuracy.
Federal filing included · State available · No hidden fees
When are business tax returns due, and what does filing cost?
For calendar-year businesses, partnerships (Form 1065) and S corporations (Form 1120-S) file by March 15 and C corporations (Form 1120) by April 15. Form 7004 gives an automatic six-month extension to file, not to pay. Lesser Tax prepares each return on our platform with a CPA review, for $100 per entity.
| Form 1065 and 1120-S | Due March 15, 2027. Extended due date September 15, 2027. |
|---|---|
| Form 1120 | Due April 15, 2027. Extended due date October 15, 2027. |
| Single-member LLC | No separate return by default. Income goes on the owner's Form 1040 (Schedule C or E). |
| Lesser Tax price | $100 per entity, CPA-reviewed. |
Official sources:IRS: Form 1065IRS: Form 1120-SIRS: Form 7004
Updated October 2026. General information, not advice for your situation.
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48hrs
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Every Business Structure, One Flat Fee
Form 1120
C-Corporation
Federal corporate income tax return for C-Corps
Form 1065
Partnership / LLC
Return for multi-member partnerships and LLCs
Form 1120-S
S-Corporation
Pass-through taxation for S-Corps
Your tax return in three steps
No accountant meetings. No back-and-forth emails. Just upload and go.
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Drop in your P&L, balance sheet, K-1s, and any other docs. Our AI reads and extracts everything automatically.
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We process your documents and generate a complete tax return, typically within 48 hours. Every detail reviewed by a CPA.
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Federal & state returns submitted
Everything included for $100
Complete business tax filing with no hidden fees.
Complete Federal Return
Full preparation of your business tax return with all required schedules and forms, ready for e-file submission to the IRS.
K-1 Generation
Automatic generation of Schedule K-1s for all partners or shareholders. We handle the allocation calculations.
AI Document Processing
Upload your P&L, balance sheet, bank statements, and prior returns. Our AI extracts and categorizes everything automatically.
CPA Review
Every return is reviewed by experienced tax professionals before delivery. We catch what automation misses.
Review Before Payment
See your complete return line-by-line in our portal before paying anything. Only pay if you're satisfied with the result.
Unlimited Revisions
Need changes? We'll revise your return as many times as needed until you're completely satisfied. No extra charge.
Is this right for you?
Good fit
- C-Corps filing Form 1120
- Partnerships & multi-member LLCs filing Form 1065
- S-Corps filing Form 1120-S
- Simple financials with straightforward income and expenses
- Businesses with clean QuickBooks or bookkeeping records
Not a fit
- Single-member LLCs (file on your personal return)
- Sole proprietorships (file on your personal return)
- Complex returns with international ops, M&A, heavy depreciation
- Personal tax returns
- Businesses needing year-round tax advisory
Lesser vs Traditional CPA
See why thousands of businesses are switching.
Year-round support from experienced professionals
David
Vishwesh
Jithendra
Robert
Pavan Pullugulla
9 reviews
"They are really good at handling taxes. Starting from reaching out and helping with estimates and then proceeding with final submission, everything felt smooth and good."
a week ago
Srujana Dusari
1 review
"I've had a very positive experience with Lesser Tax. They are highly professional, listened to our concerns, and provided solutions accordingly. I especially appreciated the tax strategy planning reports they shared with us this year — they took the time to discuss everything in detail and offered valuable suggestions."
3 months ago
Shawn Benny
2 reviews
"I had a great experience working with Danish and the Lesser Tax team to file my 2024 taxes. They were incredibly responsive and took the time to answer all my questions thoroughly. One of the standout aspects was the expert review after I had input all my information. I highly recommend Lesser Tax if you're a self-employed freelancer or need reliable support for your business taxes."
11 months ago
Yamini Swetha Gudibandi
1 review
"I had a great experience with Lesser Tax. They were reliable, thorough, and genuinely cared about helping me get the most out of my tax refund. What really stood out was how they took the time to explain everything and gave me practical tips to plan my income better and save on taxes. It didn't feel like a one-time service — they helped me think long-term."
a year ago
Suvashis Nandy
10 reviews · 1 photo
"Lesser tax has been phenomenal working on my complex tax filing. Their knowledge of the subject is too wide and vast which helped me structure and accurate filing of my taxes besides the smoothness and easy filing process."
a year ago
Kandagatla Alekya
1 review
"I had a fantastic experience with lesser Tax. The team was professional, knowledgeable, and incredibly patient in answering all my questions. They ensured every deduction and credit I was eligible for was accounted for, and the process was smooth from start to finish. Their attention to detail and quick turnaround time gave me complete peace of mind. Highly recommend their services for anyone looking for tax filing!"
a year ago
Don't miss your filing deadline
Multi-member LLCs and partnerships: March 15. C-Corps and S-Corps: April 15. Start now to file on time.
Start Your ReturnCommon Questions
Have more questions? Write us at use@lesser.tax
Our platform handles document parsing, transaction categorization, and return generation. You're paying for smart technology backed by CPA oversight, not hours of manual accountant work.
Correct. Upload your documents, we generate your return, you review it in our portal. Only pay $100 if you're satisfied and want to file.
At minimum: your P&L and balance sheet for the tax year. If you have K-1s from other entities, prior year returns, or other relevant docs, upload those too. Our system will extract what it needs.
Most returns are completed within 48 hours of uploading your documents. Complex situations may take slightly longer.
We'll let you know upfront if your situation requires our full-service team. No surprises: you'll know before you upload.
Partnerships and multi-member LLCs (Form 1065): March 15. C-Corps (Form 1120) and S-Corps (Form 1120-S): April 15. Extensions are available if needed.
Absolutely. We use bank-level encryption and follow strict security protocols. Your financial data is never shared with third parties.
We offer unlimited revisions before filing. If you need to amend a return after filing, contact our support team for assistance.
File your business taxes for
$100
Upload docs. Review your return. Pay only if satisfied.