US Tax Preparation & Review
NumberiX Global provides accurate and compliant US tax preparation and review services for Accounting Firms and CPA firms’ clients. Our US tax professionals and EAs prepare and review federal and state tax returns with a strong focus on accuracy, compliance, and deadline adherence—helping reduce risk and ensure confidence in every filing.
Our US Tax Expertise
Form 1040 – Individual tax return
Preparation and Review of individual income tax returns in compliance with IRS regulations.
Form 1120 – C-Corporations
End-to-end preparation of corporate tax returns with detailed income and deduction analysis.
Form 1120S – S-Corporations
Accurate preparation of S-Corp returns, including shareholder reporting requirements.
Form 1065 – Partnerships
Preparation of partnership tax returns with proper allocation of income and expenses.
Form 990
Preparation of nonprofit organization returns in accordance with IRS regulations.
Form 1041
Trust and estate income tax return preparation with detailed compliance checks.
Schedule K-1 Preparation
Accurate preparation and review of K-1s for partners and shareholders.
State Income Tax Filings
Preparation and filing of state income tax returns, including multi-state compliance.
Are daily transactions to monthly closes tasks consuming too much of your firm’s valuable advisory time?
Let our expert team handle the processing
Types of businesses we serve
- Sole Proprietorships
- Partnerships
- Limited Liability Companies (LLCs)
- C-Corporations (C-Corps)
- S-Corporations (S-Corps)
- Nonprofit Organizations
- Trusts & Estates
- Startups & Emerging Businesses
- Professional Service Firms
- E-commerce & Online Businesses
- Real Estate Entities
- Foreign-Owned US Entities
- High-Net-Worth Individuals (HNWIs)
Why Choose Us
Expertise on US regulations
Our team possesses a thorough and up-to-date knowledge of US Generally Accepted Accounting Practice (GAAP), including other relevant accounting standards, ensuring all work is compliant and accurate.
Experienced accounting
professionals
Our team of qualified and experienced accountants has a proven track record of offering accounting services to US accounting firms across a range of sectors.
Proficient in cloud Accounting and Tax Software.
We are highly proficient in a wide range of leading Accounting and Tax software including QuickBooks, Xero, Ultra Tax, ProConnect which facilitates seamless integration with your existing systems and processes.
Scalable solutions
Accounting firms can seamlessly scale their accounting and tax operations up or down through our flexible service model, eliminating the need for hiring, training, and managing seasonal or full-time staff.
Accuracy and reliability
Our flexible outsourcing approach makes accounting and tax services more cost-effective, enabling firms to deliver consistent, high-quality outcomes without the burden of full-time staffing costs.
Seamless integration
We specialize in aligning our end-to-end accounting and tax support with your internal processes, technology stack, and established workflows for smooth collaboration.
Our process
Initial consultation
We assess your firm’s tax outsourcing needs, entity types, return volume, deadlines, and compliance requirements.
Secure data collection
We set up a secure and streamlined process for collecting client tax documents, prior-year returns, and supporting schedules.
Tax return preparation
Our experienced team prepares federal and state tax returns accurately, ensuring compliance with applicable US tax regulations.
Review and approval
Prepared tax returns and workpapers are shared for your review and approval before filing.
Secure filling
Upon approval, we support secure and timely electronic filing of tax returns with the IRS and relevant state authorities.
Post-Filing Support
We assist with notices, amendments, and client queries while keeping you informed of relevant tax updates.
Software used by us
Software Expertise
Our team
Parag Sutaria, Director
With over 30 years of experience in accounting, Parag brings extensive experience collaborating with accountants across regions, including two decades in the UK and the US, as well as in outsourcing. His practical skills cover bookkeeping, VAT, management accounts, and year-end processes. As a former VP leading a large team, Parag is a Master of Commerce, Lean Six Sigma Green Belt certified, and proficient in Xero and QuickBooks, with a commitment to process improvement.
Himanshi Sonecha, Director
Himanshi is a highly accomplished accountant with over 16 years of experience across the Indian, UK, and US accounting industries. Her B2B and B2C experience, from early roles to KPO management, showcases operational excellence and high customer satisfaction. A Lean Six Sigma Green Belt, Xero Advisor Certified, and QuickBooks Online (QBO) Certified, Himanshi optimises financial processes with technology, delivering tailored, high-impact solutions.
Looking to optimize your firm’s growth through accounting and tax outsourcing
Contact us for expert support, so you can focus on strategic business growth.
Collaborate with us
We help accounting firms deliver more value by taking over day-to-day bookkeeping tasks that often consume valuable time better spent on advisory and client relationships. From transaction recording and reconciliations to monthly closes and reporting, everything is handled with accuracy, consistency, and care.
Partnership options include:
- Referral partnership: Refer bookkeeping work to us and earn commission or service credits.
- White-label support: Offer bookkeeping services under your firm’s brand while our team manages execution behind the scenes.
- Technology fit: We work seamlessly within your existing accounting systems—or deploy our own—based on what works best for your firm.
Let’s simplify bookkeeping together — reach out today.