March 15
1065 (Partnerships & Multi-Member LLCs) 1120S (s-corps)

Scale and Maximize Your U.S. Business Revenue
At Mas Formation, we make U.S. tax filing fast, simple, and fully compliant. From entrepreneurs and freelancers to growing digital agencies, we provide expert guidance so you can focus on running your business while we handle the rest.

Our service packages begin at the price displayed above, giving you a clear and straightforward starting point. We believe in transparent pricing with no hidden surprises, so you always know what to expect before moving forward. However, every business is unique. If your company requires specialized services, additional support, or a customized solution tailored to your specific goals, we are here to help.
Serving 1000+ global clients across multiple industries with proven results.
We help entrepreneurs and non-residents start, manage, and grow their businesses in the USA, UK, and UAE with complete company formation, compliance, and financial support.
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We help founders turn complex formation, compliance, and international expansion into a clear next step.
With Mas Formation, you'll have complete clarity on IRS forms, filing dates, and requirements. Stay organized, avoid penalties, and never miss an important deadline.
1065 (Partnerships & Multi-Member LLCs) 1120S (s-corps)
1065 (Partnerships & Multi-Member LLC) 1120S (s-corps)
{prprations filing standard returns, Sole proprietors and individuals,
1040-ES Filers with valid extensions
Various forms Filers with valid extensions
1040-ES Self-employed & others
Tax non-compliance is more than just a risk — it can have serious financial and legal consequences. Missing required filings may result in significant penalties, accumulating interest, increased audit scrutiny, and in severe cases, legal action.
At Mas Formation, your success matters to us. Our expert team is always ready to guide you with company formation, tax compliance, payment gateway setup, and eCommerce approval support.