Tax Planning & Preparation
Federal and state returns for partnerships, S corps, and C corps. Quarterly estimates, deadline tracking, and a plan that starts in August instead of March.
Learn MoreCertified Public Accountants | Hartford, Connecticut
Financial clarity for growing businesses.
Sterling & Hayes runs the tax, the books, and the payroll for companies between $1 million and $100 million in revenue. You get clean numbers, clear deadlines, and a CPA who picks up the phone.
- Licensed CPAs
- Fixed fee agreements
- QuickBooks ProAdvisors
Response time
Every inquiry answered within one business day.
15+ Years in Practice
Serving clients since 2009
Certified CPAs
Licensed, insured, and current
500+ Businesses Served
From startups to family firms
What We Do
Services
Four lines of work, one team, one fee schedule. Most clients start with one and add the rest inside a year.
Corporate Bookkeeping
Monthly close, bank and card reconciliations, and financial statements your lender and your board can read without a phone call.
Learn MorePayroll Services
Payroll runs, direct deposit, quarterly filings, and year-end W-2s and 1099s. You approve the numbers, we file the forms.
Learn MoreFractional CFO
Forecasting, cash flow planning, budget reviews, and board-ready reporting from a senior accountant, at a fraction of a full-time hire.
Learn MoreOur Team
The Partners
Every account is assigned to a named partner. You know who signs your return and who to call when a notice arrives.
Managing Partner
Margaret Sterling
CPA, MBA
Founded the firm in 2009 and still reviews every multi-state return that leaves the office.
Tax Partner
James Hayes
CPA
Handles partnership and S corp returns for closely held companies across New England.
Advisory Partner
Alan Whitfield
CPA, CFP
Builds the forecasts and cash flow models owners use before they sell or buy a company.
Assurance Partner
Renee Delgado
CPA
Prepares the statements that lenders, auditors, and boards ask for every quarter.
Client Accounting Partner
Thomas Byrne
CPA
Runs the monthly close for more than 120 client companies and keeps the calendar honest.
State & Local Tax Partner
Nina Castellanos
CPA
Resolves nexus questions, credits, and filings for companies operating in twelve states.
Insights
Notes From the Desk
Short answers to the questions clients ask us most.
TaxMarch 4, 2026
Quarterly Estimates Without the Guesswork
How to set aside the right percentage each quarter, and what to do when revenue spikes halfway through the year.
Read article
BookkeepingFebruary 12, 2026
What Your Monthly Close Should Include
Reconciliations, accruals, and a variance check. The six steps that keep your statements trustworthy.
Read article
PayrollJanuary 22, 2026
Contractor or Employee? A 1099 Checklist
Classification tests, the paperwork that supports them, and the cost of getting it wrong in an audit.
Read articleContact
Talk to a CPA
Tell us your entity type, your revenue, and what is due next. We reply with a scope and a flat fee.
- Office
- 410 Commerce Street, Suite 900
Hartford, CT 06103 - Phone
- (860) 555-0117
- [email protected]
- Office Hours
- Monday to Friday, 8:00 AM to 5:30 PM
Saturday, 9:00 AM to 1:00 PM (tax season)
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