A business can create a new filing obligation without opening a new front door.
Sullivan & Co. reads business activity the way tax authorities do — by the transaction, not by the address on the letterhead.

Hiring across state lines, adding online sales, opening a second location, accepting a new investor, or restructuring ownership can each create filing and registration obligations that the business had no reason to expect.
The firm's work is to identify those obligations early, register where the business needs to be registered, and structure the books so the annual return, interim statements, and any lender or investor package all agree.
Nine areas where a business decision becomes a return-level decision.
Choice-of-entity that reads well on both the tax return and the balance sheet.
Payroll registrations and state-level filings that follow the worker.
Nexus review, registration, and coordination with sales tax obligations.
Property, use, and income filings that follow the asset.
Books built so the return, the statements, and the bank match.
Reasonable compensation, distributions, and the return-level effect.
Timing and structure of purchases, sales, and reorganizations.
Ownership transition supported by clean historical records.
Documentation prepared before the notice, not after.
A short review before the quote.
- 01Read the current footprint
States, entities, employees, and where sales actually happen.
- 02Reconcile the books to the last return
So the next return builds on the last one.
- 03Identify open registrations & notices
Any state expecting to hear from the business.
- 04Define scope in writing
Ongoing work, one-time projects, or advisory — priced explicitly.
