
The federal R&D payroll tax offset provision of the R&D Tax Credit allows a startup company to claim credit against their payroll taxes. The effective date is for tax years beginning after December 31, 2015. Under IRC Section 41(h), a “qualified small business” (QSB), can elect to use their federal R&D credit to offset their employer-paid payroll taxes starting in tax years after December 31, 2015.
Using the federal R&D payroll tax offset provision, a startup company can claim a credit against their employer-paid payroll taxes of up to $500,000 for a single year. Over five years, there is a maximum available tax savings of $2,500,000.

A qualified small business is defined as a business with less than $5 million in gross receipts in the credit year and has no “gross receipts” for any taxable year preceding the 5-taxable-year period ending with the credit year.
The payroll tax is the portion of the employer-paid social security tax of FICA (6.2%), also called Old-Age, Survivors, and Disability Insurance (OASDI). In 2017, the limit on the social security portion of the tax was capped at $127,200 of an employee’s annual earnings. The credit cannot be used to reduce Medicare taxes.
Taxpayers must claim the federal R&D Tax Credit on the income tax return and then can use all or a portion of the credits in the following quarter(s) to offset payroll taxes. Any unused credits can be carried forward to the next year.



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