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Accounting that reduces risks and keeps your company audit-ready.

Expert U.S. business accounting with clear guidance and 24/7 access to your documents. EN | PT | ES.

Ongoing advisory services to ensure legal, financial, and operational compliance. IRS and state notice support, with full correspondence assistance on your behalf.

Secure Access, 24/7

Dedicated client portal with search by period, vendor, or cost center find documents anytime without confusion. Version history and update trail to prevent gaps and rework.Trilingual support ( EN/PT/ES) with transparent SLAs.

ITIN Applications & Renewals

Business Support

Assistance with ITIN number application and renewal, ensuring accuracy and compliance with IRS requirements.

Entity Formation & Dissolution

Federal & State income tax returns for businesses and professionals (LLCs, Corporations, Sole Proprietors, Partnerships) carefully reviewed to reduce errors and ensure compliance.

Guidance on starting, restructuring, or closing your business with the right entity type. Compliance with state and federal requirements, handled from paperwork to filing.

Compliance & Tax Filings

Monthly bookkeeping (cash or accrual), reconciliations, and reporting — designed to keep your records clean, audit-ready, and decision-driven. Profit & Loss statements delivered monthly for clarity on performance and growth.


Bookkeeping & Accounting

Accurate and timely payroll processing, with all tax withholdings and compliance handled. Preparation of W-2s, 1099s, 940/941 filings, plus employee reports and year-end packages.

Payroll Services

How can DDS help your company?

We combine specialist oversight with standardized processes to close compliance gaps and increase visibility.

Payroll Services

Bookkeeping & Accounting

Compliance & Tax Filings

Accurate and timely payroll processing, with all tax withholdings and compliance handled. Preparation of W-2s, 1099s, 940/941 filings, plus employee reports and year-end packages.


Federal & State income tax returns for businesses and professionals (LLCs, Corporations, Sole Proprietors, Partnerships) carefully reviewed to reduce errors and ensure compliance.

Monthly bookkeeping (cash or accrual), reconciliations, and reporting — designed to keep your records clean, audit-ready, and decision-driven. Profit & Loss statements delivered monthly for clarity on performance and growth.

Entity Formation & Dissolution

Business Support

ITIN Applications & Renewals

Guidance on starting, restructuring, or closing your business with the right entity type. Compliance with state and federal requirements, handled from paperwork to filing.

Ongoing advisory services to ensure legal, financial, and operational compliance. IRS and state notice support, with full correspondence assistance on your behalf.

Assistance with ITIN number application and renewal, ensuring accuracy and compliance with IRS requirements.

Secure Access, 24/7

Dedicated client portal with search by period, vendor, or cost center find documents anytime without confusion. Version history and update trail to prevent gaps and rework.Trilingual support ( EN/PT/ES) with transparent SLAs.

+ 23 years

serving companies across the United States with rigor and clarity.

About Us

We operate with robust monthly-close routines, strong document governance, and direct communication with decision-makers. Trusted across Cape Cod and throughout Massachusetts, we align technical accuracy with practical guidance.

+100 companies

switched to DDS Tax Service

Why do smart companies outsource accounting?

Outsourcing improves focus, efficiency, and risk control.

Independent industry research shows companies that outsource accounting tend to gain operational efficiency, reduce fixed costs, and enhance compliance quality, freeing internal teams for strategic work.

Efficiency

Smarter
cost structure

Ongoing specialization

Risk reduction

Visibility

fewer non-productive hours and faster monthly close

services that scale with your company’s stage and growth.

current with U.S. and multistate rules.

standardized reviews and document trails

management-ready reports and a 24/7 portal tailored for leadership.

Get a quick assessment of your

needs. Service available in

English Portuguese Spanish

Ready to turn accounting into a competitive advantage?

Get a quick assessment of your needs. Service available in

English Portuguese Spanish

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