The people who keep our communities moving deserve someone in their corner.
For over twenty years, Seneca Business Services has helped working families and business owners stay compliant, make informed decisions, and build something that lasts — from a first tax return to a family business in its second or third generation. We work in English, Portuguese, and Spanish.
Family Owned
Est. 2003
Individuals and families
Personal taxes and document services
Personal tax returns prepared and filed, notarization, document translation, and help with the forms and paperwork that come up. Explained clearly, in the language you are most comfortable in.
See personal servicesBusinesses
Business taxes, books, and payroll
Business tax returns, bookkeeping, payroll, sales tax, entity formation, licensing, and audit support. Whether you just hired your first employee or you are managing eight figures in revenue.
See business servicesWhat we handle
One firm for the filings that keep your life and business in order.
Taxes, and everything they touch. Most clients come to us for a return and stay for the rest — because bookkeeping, payroll, registrations, licensing, and audits all trace back to the same numbers.
Personal tax preparation
All 50 statesIndividual federal and state returns, extensions, IRS notices, and transcript requests.
View servicesBusiness taxes
All 50 statesReturns for LLCs, S-corps, C-corps and partnerships, plus 1099s, payroll tax filings, and sales tax.
View servicesBookkeeping and accounting
Monthly bookkeeping scaled to your size, reconciliation, cleanup of existing books, and invoicing.
View servicesPayroll
Multi-stateWeekly, biweekly, or monthly payroll, quarterly filings, registration, and closure.
View servicesBusiness formation and compliance
Multi-stateEntity formation, plus the registrations and periodic filings that keep a business in good standing.
View servicesLicensing, audits, and regulatory
Multi-stateTrade licensing, insurance premium audits, and state compliance reviews — prepared and handled with the agency directly.
View servicesWhere we work
Rooted in Danbury, CT. Working wherever you are.
Taxes have no borders
We prepare and file returns in every state. Connecticut, New York, Massachusetts, Pennsylvania, Washington, New Hampshire, New Jersey, South Carolina — wherever you earned it, we can file it.
Ongoing services
Bookkeeping, payroll, compliance, and licensing work is multi-state. Most of our clients are in the four states below, simply because that is where we are known — but it is not a boundary. Tell us where you operate.
Not sure which service you need?
That is a normal place to start. Tell us what is going on and we will point you to the right person — no obligation, no pressure, and no charge for asking.