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NAS Advisors LLC

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Accountants & CPAs

Dulles, VA

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Additional Information

NAS Advisors LLC is a consulting firm based in Virginia providing accounting, bookkeeping, tax, payroll, accounting system setup, and business registration services to individuals, small businesses, non-profit organizations, and international organizations. The firm has over 15 years of experience with highly qualified tax and accounting professionals.

Specializes in

Federal and state tax returnsIn-house and outsourced accountingQuickBooks setupPayroll administration and processingBusiness registration in VirginiaNon-profit accounting

Services

Tax ServicesAccounting & Book-keeping ServicesAccounting System SetupPayroll ServiceConsultancy ServiceBusiness Registration Service

Serving Washington, D.C. Area, Virginia, United States, International

Additional information extracted from the firm's public website. Last updated: August 7, 2026

Contact Information

Phone: (571) 762-9818

Website: www.nasadvisors.com

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Frequently Asked Questions

How much does an accountant cost in Dulles?

Personal tax returns: $150-$400 depending on complexity. Small business bookkeeping: $300-$800/month. Corporate tax returns: $1,000-$3,000+. Many accountants offer free initial consultations to discuss your needs and pricing.

What's the difference between a CPA and a bookkeeper?

CPAs (Certified Public Accountants) are state-licensed, can audit, provide tax advice, and represent you before the IRS. Enrolled agents are credentialed by the IRS itself and specialise in tax filing and IRS representation. Bookkeepers handle day-to-day transaction recording and basic financial reports. For audits and complex planning you want a CPA; for tax filing and IRS representation an enrolled agent is often the better value.

When should I hire an accountant?

Consider an accountant if you're self-employed, own rental property, have investment income, run a business, received an IRS notice, or your tax situation is more complex than a simple W-2. The cost of an accountant often pays for itself in tax savings.

Can an accountant help if I'm behind on taxes?

Yes. Accountants regularly help clients catch up on unfiled returns. They can also help with IRS voluntary disclosure, negotiate installment agreements or an offer in compromise, and handle notices, amended returns and audits.

Is it worth paying for tax preparation vs doing it myself?

If you have straightforward W-2 income and take the standard deduction, free software works fine. But if you have self-employment income, rental properties, investments, or business expenses, a professional accountant typically finds deductions that more than cover their fee.