ADC Payroll Services


Ambrosi Donahue Congdon CPA's LinkedIn Ambrosi Donahue Congdon CPA Facebook Page Ambrosi Donahue Congdon CPA's Twitter Ambrosi Donahue Congdon CPA's Google Plus Ambrosi Donahue Congdon CPA's Instagram


Login to Client Portal


We hope you find our portal a convenient way to communicate with our office. If you have any trouble accessing your portal, please call our office at 978.462.6674 and we will be happy to resolve any issues or questions you may have. In addition to our portal, we have provided the helpful links and resources below.

Foreign Bank Account Report (FBAR)

Record Retention Guide For Individuals

Record Retention Guide For Businesses

IRS Track Your Refund

Consent to Disclosure of Tax Return Information

Peer Review Letter

2017 Tax Extension Deadlines

Monday, September 17

Corporations: Form 1120
S Corporations: Form 1120S

Monday, October 15

Individuals: Form 1040
Partnerships: Form 1065