Hand your business taxes to a licensed professional instead of wrestling with software. Taxagon prepares and e-files your federal and state returns, walks you through every number, and gives you a clear, personalized quote before any work starts.
Form 1065, 1120-S, 1120, or Schedule C — federal and state
Schedule K-1s prepared for every owner
Catch-up bookkeeping if your records are behind
Year-round support, not just at the deadline
Free consultation. No obligation.
Why business owners choose Taxagon
A real pro, not software
You work with a licensed US tax professional who knows your business — not a chatbot, not a queue, not do-it-yourself software that leaves the risk with you.
Clear pricing, agreed up front
You get a personalized quote before any work starts. No hourly surprises, no upsells mid-engagement.
Books behind? We fix that
Catch-up bookkeeping is one of our core services. Messy or missing records don't stop the filing — we clean them up as part of the job.
Year-round, not just April
Deadlines, estimated payments, IRS notices, next year's planning — the same team stays with you after the return is filed.
“🌟 Excellent Service by Taxagon — Special Thanks to Shanmukh
I had an outstanding experience with Taxagon for my tax filing and ITIN application support. From start to finish, the process was smooth, professional, and extremely well-handled.
I would especially like to highlight Shanmukh, who went above and beyond to assist me. He guided me through every step of the ITIN request, documentation, and tax filing process with great patience and clarity. What truly impressed me was his dedication and commitment — even during his final working hours, early in the morning before heading home, he made sure all my documents were reviewed.
Later, when I needed an urgent update related to my SSN change before an appointment the next day, Shanmukh went the extra miles — he personally returned to office immediately and helped me prepare the updated documents on time. That level of support, professionalism, and care is truly rare.
His follow-ups, timely communication, and willingness to help made the entire process stress-free. I am very thankful for his help and highly recommend Taxagon, especially Shanmukh, for anyone looking for reliable, efficient, and customer-focused tax and ITIN services.
⭐ Highly recommended!”
“I have filed taxes with them for the year 2024. Shanmukh and entire team provided outstanding service and process completed smoothly. I got my federal and state tax returns on time. They have been clarifying the questions related to exemptions and also appreciate their prompt response and follow-ups regarding my concerns.
I am happy with the service provided and definitely recommend others to utilize their pro-active services.”
“Recently I have filed taxes with TAXAGON for the year 2024. Entire team provided excellent service and process completed smoothly. I got my federal and state tax returns on time. They have been clarifying the questions related to exemptions and also appreciate their prompt response and follow-ups regarding my concerns.”
Extended returns are due September 15 and October 15
Partnerships and S-corporations that filed an extension must file by September 15, 2026. C-corporations and personal returns follow on October 15. Late filing costs partnerships and S-corps about $255 per owner, per month — start now and the deadline stays comfortable.
Filed in three steps
Most business returns are ready within days of receiving your books.
01
Tell us about your business
Fill the short form or call us. We confirm your entity type, what needs filing, and give you a clear quote — usually inside a 15-minute conversation.
02
Share your books securely
Upload your bookkeeping, prior-year return, and owner details through the Taxagon client portal. If your books are behind, we catch them up first.
03
We prepare, review, and e-file
Your tax pro prepares the return, walks you through it, and e-files federal and state once you approve. You get copies and K-1s for every owner.
Business filing questions, answered
Straight answers on cost, timing, and what we need from you.
Partnership returns (Form 1065), S-corporation returns (Form 1120-S), C-corporation returns (Form 1120), and Schedule C for single-member LLCs and sole proprietors — federal and state, with Schedule K-1s prepared for every partner or shareholder.
It depends on your entity type, number of owners, and the state of your books. You get a clear, personalized quote before any work starts, so there are no surprises. The initial consultation is free.
Yes — catch-up bookkeeping is one of our core services. We reconstruct and reconcile your records as part of the engagement, then file from clean books. Tell us how far behind you are and we'll give you an honest timeline.
Most business returns are ready within a few days of receiving complete books. Complex situations or heavy bookkeeping catch-up take longer — you'll get a realistic date on the first call, not a guess.
Typically your prior-year return, your bookkeeping records or bank statements, your EIN, and basic details for each owner. Everything moves through the secure Taxagon client portal — never over email.
For 2025 returns, extended partnerships and S-corporations must file by September 15, 2026. Extended C-corporations and personal returns are due October 15, 2026. Late filing costs partnerships and S-corps about $255 per owner for each month, or part of a month, the return is late.
Yes. We prepare the state business returns that apply to you, including multi-state filings where your business has activity in more than one state.
You keep the same team year-round — for estimated payments, IRS notices, next year's planning, and bookkeeping. We aim to be your accounting team, not a once-a-year transaction.
Ready when you are
Whichever way you prefer to reach us, you will speak to a licensed US tax professional — not a call centre. Tell us your situation and we will tell you honestly what it takes to get filed.
A 15-minute call with a tax pro. We confirm your entity type, what needs filing, and whether your books are filing-ready. You leave with a personalized quote and a realistic timeline — whether or not you hire us.
Filing from outside the US? We work across time zones — WhatsApp is usually the quickest way to reach us.
