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The R&D 4-Part Test: How to Determine Eligibility for the Research & Development Tax Credit

Source Advisors May 7, 2026

The Research & Development (R&D) Tax Credit is one of the most valuable tax incentives available to businesses investing in innovation. However, not every project qualifies. To determine eligibility, the IRS applies a framework known as the R&D 4-Part Test under Internal Revenue Code (IRC) Section 41. Understanding how this test works is essential for identifying qualifying activities, supporting documentation

R&D

The R&D 4-Part Test: How to Determine Eligibility for the Research & Development Tax Credit

Source Advisors May 7, 2026

washington business people working at table with laptop

Sales & Use Tax

What is a Reverse Sales & Use Tax Audit?

A Reverse Sales & Use Tax Audit (RSUTA) is a structured review of prior period purchase activity designed to identify and recover Sales & Use Tax overpayments as opposed to the traditional focus on underpayments in state audits. Whereas State initiated audits are aimed at detecting underpayments and assessing additional

Kamal Shah, CPA April 16, 2026

R&D

The R&D 4-Part Test: How to Determine Eligibility for the Research & Development Tax Credit

The Research & Development (R&D) Tax Credit is one of the most valuable tax incentives available to businesses investing in

Source Advisors May 7, 2026

Sales & Use Tax

What is a Reverse Sales & Use Tax Audit?

A Reverse Sales & Use Tax Audit (RSUTA) is a structured review of prior period purchase activity designed to identify

Kamal Shah, CPA April 16, 2026

Sales & Use Tax

What is Washington Business & Occupational (B&O) Tax?

Washington Business & Occupation (B&O) Tax is a tax imposed by the state of Washington on the privilege of doing

Jaclyn Harris January 14, 2026

R&D

R&D

How Mortgage Banking Qualifies for the R&D Tax Credit

The mortgage banking industry has quietly become more and more dependent on software development over the last decade. Due to the fragmentation

David Finley May 1, 2020

R&D

6 Common Misconceptions About R&D Tax Credits

The Research & Development (R&D) tax credit can enable businesses to increase cash flow and savings, reduce the Federal income tax rate, and receive Federal and State dollar-for-dollar income tax reductions. Specifically, a wide variety of businesses can potentially offset up to $500,000 in payroll tax liability for qualifying activities. However, there

Deb Roth, CPA June 5, 2023

R&D

What Does the IRS Extending the R&D Tax Credit Claims Transition Period Mean?

The IRS extended the transition period for taxpayers to perfect their refund claims for R&D Tax Credits through January 10, 2024. Taxpayers are now provided 45 days to perfect a research credit claim for a refund prior to the IRS’s final determination on the claim, according to the IRS. The transition period was

Deb Roth, CPA June 1, 2023

Cost Segregation

Energy

Sales & Use Tax

Sales & Use Tax

What is Business Personal Property Tax?

The Business Personal Property Tax Business Personal Property Tax is a tax assessed on tangible personal property businesses own. This type of property includes equipment, furniture, computers, machinery, and inventory, among other items not permanently attached to a building or land. Local or state government jurisdictions typically impose the tax,

Kamal Shah, CPA April 14, 2023

Sales & Use Tax

Why Do We Have Sales & Use Tax?

What is Sales & Use Tax? Sales and Use Tax is a consumption tax, a form of tax that is levied by state or local governments on the sale of goods and services. A wide range of goods, including clothing, electronics, vehicles, food, and entertainment, are typically subject to Sales

Johanna Monroy April 11, 2023