William L. Marks,

Services Offered

Individual Income Tax Preparation and Filing

Business Tax Return Preparation and Filing

Self-Employed and 1099 Tax Preparation

Partnership Tax Return Preparation (Form 1065)

S-Corporation Tax Return Preparation (Form 1120-S)

C-Corporation Tax Return Preparation (Form 1120)

LLC Tax Return Preparation and Entity Classification

Tax Loss Harvesting and Investment Strategy

IRS Audit Representation and Defense

IRS Audit Preparation and Documentation

IRS Appeals and Dispute Resolution

IRS Collections and Levy Resolution

Payroll Tax Compliance and Audit Defense

Specialties

Basic Accounting Services

Corporate Tax Services

Bookkeeping Services

Individual Tax Returns

Payroll & Sales Tax Services

Sales Tax Compliance Services

General Accounting Services

Other Services

Tax Planning & Advisory Services

IRS Notice & Correspondence Services

Retirement Account Tax Reporting(Form 5500, IRA reporting)

Client Types Served

Individual Taxpayers and Wage Earners

Married Couples Filing Joint Returns

High-Income Earners and Professionals

Retirees and Fixed Income Individuals

Multi-State Residents and Tax Optimization Clients

Families with Investment Income and Rental Properties

Small Business Owners (1-50 Employees)

Medium-Sized Business Owners (50-500 Employees)

Home-Based Business and Side Hustle Operators

Technology and IT Consultants

Industry Expertise

Small and Medium-Sized Businesses (SMB)

S-Corporation Tax Planning and Compliance

Partnership Accounting and Tax Services

Limited Liability Company (LLC) Tax Planning

Solo Entrepreneur and Freelancer Tax Services

Family-Owned Business Accounting and Tax Planning

Personal Income Tax Preparation for High Net Worth Individuals

Languages Spoken

English

About William L. Marks,

Based in Washington, D.C., William L. Marks has over 20 years of experience providing expert accounting and advisory services to individuals and businesses.
A certified public accountant with a specialization in basic accounting services, tax compliance, and small business accounting, Marks has helped numerous family-owned enterprises and various business structures, including S-Corps, partnerships, and LLCs, with their financial needs.
His services include general accounting and advisory, as well as payroll processing and compliance, enabling clients to maintain accurate financial records and meet tax obligations.