Your Trusted Partner in Tax & Accounting.
- 500+Regular customers
- 7+Years experience

Welcome to Illion - Accounting Company
Dealing with tax issues can be overwhelming and stressful, but you don’t have to face them alone. Our tax resolution services are designed to assist individuals and businesses facing tax challenges such as audits, tax debt, penalties, or unfiled tax returns. We understand the intricacies of tax laws and regulations, and we work diligently to protect your rights and interests while finding the best possible resolution for your situation.
Our firm is one of the leading firms in the area. By combining our expertise, experience and the energy of our staff, each client receives close personal and professional attention.
Our high standards, service and specialized staff spell the difference between our outstanding performance, and other firms. We make sure that every client is served by the expertise of our whole firm.

Request appointment
Tax and accounting services
ILLION—your reliable partner in accounting and taxation matters in the USA.
Financial literacy and proper bookkeeping are the foundation of a successful business and the stability of individuals in the USA. The company ILLION offers professional services in the field of tax reporting, bookkeeping, and financial support for individuals and legal entities.
We understand all the nuances of American legislation and help clients avoid fines, save time, and build a proper financial strategy. By collaborating with us, you receive high-quality fulfillment of obligations and gain confidence in the future.
Our key services:
- Preparation and submission of individual tax returns (Form 1040) and corporate tax returns (1120, 1065, etc.).
- Full bookkeeping services for small and medium-sized businesses.
- Organization of payroll and tax payment calculations (payroll).
- Consultations on tax planning, expense optimization, and building an effective financial model.
- Registration of new businesses in the USA, assistance in choosing the organizational and legal form (LLC, corporation, etc.).
- Support in matters of sales taxes, accounting for online stores, and the service sector.
Why choose ILLION?
- Over 10 years of practical experience in U.S. accounting and taxes.
- Personal approach to each client: we tailor solutions based on the industry, business volume, and individual characteristics.
- Strict adherence to reporting deadlines and full compliance with IRS requirements and state legislation.
- We work with clients across the entire United States in a remote format.
- Prompt feedback, transparent cooperation terms, and a clear calculation system.
Who will benefit from our services?
- Small business owners and aspiring entrepreneurs.
- To self-employed specialists, freelancers, and consultants.
- Representatives of the real estate, design, delivery, IT, and other industries.
Services for U.S. citizens and non-residents who need to properly file their tax returns.
ILLION provides competent financial control throughout all stages of your growth.
Our mission is to free you from the complexities of accounting and tax regulation. We strive to make the financial support process simple, clear, and beneficial for every client. With ILLION, you will forget about paperwork, tax risks, and uncertainty in calculations.
Contact us today — and get a reliable partner for all your accounting and tax needs!