- 150+ business clients
- Video calls or a visit to our office
Business tax extension filing, start to finish
1. Send last year's business return
Upload it through our secure link. Add your current profit and loss statement. Tell us your year end and whether your books are finished.
2. We file the extension request
We file Form 7004 for the business before the due date. We then quote the year's work in writing, including any owners' personal returns, and hold that price for the work we listed.
3. Filed within the extension
Your partners or shareholders get the numbers they need for their own returns. The business return is signed and filed with the IRS.
Partnership and S corp due dates for 2027
For a calendar-year partnership or S corporation filing its 2026 return:
- March 15, 2027:return due, or Form 7004 filed
- September 15, 2027:extended deadline for the complete return
A fiscal-year business has different dates. We confirm yours when you send last year's return.

Business tax returns from our Everett office
Our Everett, Washington team prepares federal business returns for S corporations, partnerships and LLCs, plus Washington business tax and multi-state filings. We track your filing dates and tell you in January what each one needs. Sara Stegall, JD, our Senior Tax Law Analyst, advises owners on entity structuring. Walk-ins are welcome at the office.
- 40+Years in business
- < 24hAverage response
- 1,000+Clients served
Every return checked by a Washington-licensed CPA before signing
Send last year's business return, and we reply with a written quote we hold for the work listed.

