Over 11 million corporate tax returns are filed annually in the US, says the IRC. However, many of those returns have compliance errors and are filed late, costing businesses billions in penalties each year. For CPA firms, tax season brings many challenges in the form of frequent tax law changes, state-specific requirements, and increasing client expectations making it all overwhelming.
With our corporation tax preparation outsourcing services (1120/1120-S & state filings), we help US CPA firms manage their workload efficiently. With our outsourced corporate tax services USA, CPA firms gains instant access to an IRS-compliant solution that is scalable, improves accuracy, cuts costs, and frees staff to focus on higher-value advisory work.
If you are facing deadline bottlenecks, staffing shortages, or just finding it hard to keep up with corporate tax compliance outsourcing for CPAs, our tailored solutions can bridge the gap and ensure your clients remain fully compliant with federal and state tax laws.
Usually our work speaks for itself. At times, our delighted customers say a few nice things about our teams & their work.
We partner with CPA firms and accounting practices across the United States from boutique firms in Texas and Florida to nationwide practices in New York and California.
We prepare and file Form 1120, 1120-S, and state corporate returns, with accurate tax computations and supporting schedules.
We review every return in details to ensure IRS and state-specific compliance, mitigating risks for your firm and your clients.
We ensure that all R&D credits, depreciation deductions, and carryforwards are meticulously calculated, helping your clients optimize tax positions while staying compliant.
We use encrypted data portals and integrate with leading accounting platforms (QuickBooks, Xero, CCH, Thomson Reuters), ensuring IRS audit-readiness and full data security.
Our team of tax experts stays updated on IRS rulings, federal law changes, and state tax updates, delivering hands-on compliance support for your firm.
We comply with IRS’s strict requirements and deliver thorough documentation for every return.
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Yes. The CPA retains signing authority and responsibility, but outsourcing is fully permitted when providers follow IRS-compliant standards.
Absolutely. We manage both federal and state returns, ensuring compliance across all jurisdictions.
If you are looking to scale your tax preparation operations while keeping the overhead costs low and delivering IRS-compliant returns, our individual tax return preparation outsourcing is the solution.
Partner with us today for self-assessment tax outsourcing for CPA firms in the US and free up your team to focus on advisory and client growth.
“Datamatics helped us scale seamlessly—handling 100% of our tax filing needs and overcoming peak-season backlogs with accuracy and speed.”
– Owner, CPA Firm from Ohio
“With Datamatics, we achieved 100% on-time tax filings—thanks to their detailed, responsive, and stress-free support.”
– Partner, CPA Firm in Boston
“Datamatics exceeded expectations with scalable tax return services, delivering accuracy across every return reviewed.”
– Partner, Leading CPA firm based in Florida
“We trusted Datamatics with client tax filings and got 100% compliant, error-free results—backed by top-tier data security.”
– Manager, US Based CPA Firm
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