Tax services: smart fiscal management for your U.S. business

Julian Drago
October 16, 2025

Complying with U.S. tax regulations can be challenging—especially when you manage your business from abroad. Tax laws evolve frequently, deadlines are strict, and small mistakes can lead to penalties or the loss of benefits. That’s why having professional tax services is not only about compliance but also about protecting your company’s financial stability and growth.

At Openbiz, we help entrepreneurs and foreign-owned businesses handle their U.S. taxes with precision, transparency, and efficiency—so they can focus on what really matters: operating and growing confidently.

What are tax services?

Tax services include all the actions involved in calculating, filing, and maintaining compliance with federal and state taxes. This covers submitting forms to the IRS, filing state annual reports, registering for Sales Tax, keeping monthly accounting, and obtaining your ITIN or EIN when needed.

The goal is to ensure your business meets all tax obligations while taking advantage of available deductions and avoiding delays or penalties.

Why tax services are essential for U.S. businesses

Owning a company in the United States means following detailed tax rules at both federal and state levels. However, many foreign entrepreneurs are unaware of the requirements, forms, and deadlines they must meet.

Having specialized tax services allows you to:

  • File your annual federal and state returns accurately and on time.
  • Keep your business in good standing with the IRS.
  • Reduce errors in tax calculations and payments.
  • Maximize deductions and tax benefits.
  • Receive continuous accounting and financial support tailored to your business structure.

U.S. tax documents with calculator, dollar bills, and American flag — representing professional tax filing services.

Openbiz tax service plans

Openbiz provides scalable solutions for every business stage—from companies that only need annual filings to those requiring full financial and tax management.

1. Tax — Annual Tax Service

Price: $1,200 / year

Designed for established companies that need to remain compliant with U.S. tax regulations.
Includes:

  • Corporate Tax Return (IRS).
  • State Annual Report.
  • Dedicated account executive.
  • Annual one-hour accounting consultation.

This plan ensures your company stays compliant with the IRS and state authorities throughout the year.

2. Full Compliance — Comprehensive Tax and Accounting Service

Price: $3,997 / year

Perfect for businesses in operation that need continuous tax and accounting support.
Includes everything from the Tax plan, plus:

  • Specialized accounting.
  • Monthly accounting reports.
  • Sales Tax registration.
  • Annual Xero license.

This plan gives you complete visibility of your company’s finances through monthly reports and ongoing management.

3. Enterprise — Total Compliance

Price: $6,000 / year

Created for established companies or partnerships seeking advanced fiscal management and full-time support.
Includes everything from the Full Compliance plan, plus:

  • ITIN for each partner.
  • Individual or corporate income tax filing.
  • Monthly meetings with specialized accountants.
  • Access to an exclusive business network.
  • Virtual office with mail handling.

The Enterprise plan delivers total control over your company’s accounting and tax obligations, tailored to complex business structures.

ITIN application as a standalone service

In addition to our main tax plans, Openbiz also offers the ITIN (Individual Taxpayer Identification Number) as an independent service.

Price: $350 / one-time fee

The ITIN is essential for individuals who are not U.S. citizens or residents but need to handle tax-related activities in the United States.

It allows you to:

  • Open U.S. business bank accounts.
  • File tax returns.
  • Hire employees or receive partner distributions.

Obtaining an ITIN is the first step toward operating legally and efficiently within the U.S. financial and tax system.

Benefits of hiring professional tax services

  • Guaranteed compliance: your taxes and filings are always up to date.
  • Time savings: we simplify the entire process and handle communication with the IRS.
  • Tax optimization: take advantage of deductions and credits available for your business type.
  • Expert guidance: a specialized team supports you through every fiscal and accounting step.
  • Scalability: start with a basic service and add more coverage as your business grows.

Which tax plan should you choose?

Your choice depends on your company’s size and operations:

  • If you only need to file annual reports, the Tax plan is ideal.
  • If you require monthly accounting and reporting, choose Full Compliance.
  • If you have multiple partners or a complex structure, go with Enterprise for full coverage.
  • If you’re an individual who simply needs a tax ID, request your ITIN as a separate service.

American flag with business documents and envelope symbolizing U.S. tax compliance and ITIN registration services.

Frequently asked questions about tax services

What do tax services include in the U.S.?

They include the preparation and filing of federal and state tax returns, annual financial reports, and accounting compliance with the IRS and local authorities.

Can I request only the ITIN service?

Yes. The ITIN can be obtained separately for individuals who need to operate legally or fulfill tax obligations in the U.S. without being residents.

Do I have to file taxes if my company had no income?

Yes. Even inactive companies must file annual returns to remain in good standing and avoid penalties.

What’s the difference between the Tax, Full Compliance, and Enterprise plans?

Each plan increases the level of support: Tax covers annual compliance, Full Compliance adds monthly accounting and Sales Tax registration, and Enterprise includes full fiscal management and partner services.

Let Openbiz handle your taxes

Managing taxes in the United States doesn’t have to be complicated. At Openbiz, we provide tax services tailored to your needs—from obtaining your ITIN to complete fiscal and accounting management.

Our team takes care of every detail so your business can operate confidently, stay compliant with U.S. regulations, and focus on growth.

Contact us today to learn how our tax services can help you stay compliant and optimize your company’s financial performance.

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