The Internal Revenue Service has released final guidance for small employers eligible to claim the new small business health care tax credit for the 2010 tax year.

In general, the credit is available to small employers that pay at least half of the premiums for single health insurance coverage for their employees. It is specifically targeted to help small businesses and tax-exempt organizations that primarily employ moderate- and lower-income workers.

Small businesses can claim the credit for 2010 through 2013 and for any two years after that. For tax years 2010 to 2013, the maximum credit is 35 percent of premiums paid by eligible small businesses and 25 percent of premiums paid by eligible tax-exempt organizations. Beginning in 2014, the maximum tax credit will increase to 50 percent of premiums paid by eligible small business employers and 35 percent of premiums paid by eligible tax-exempt organizations.

The maximum credit goes to smaller employers –– those with 10 or fewer full-time equivalent (FTE) employees –– paying annual average wages of $25,000 or less. The credit is completely phased out for employers that have 25 or more FTEs or that pay average wages of $50,000 or more per year. Because the eligibility rules are based in part on the number of FTEs, not the number of employees, employers that use part-time workers may qualify even if they employ more than 25 individuals.

Tax-exempt organizations will first use Form 8941 to figure their refundable credit, and then claim the credit on Line 44f of Form 990-T. Though primarily filed by those organizations liable for the tax on unrelated business income, Form 990-T will also be used by any eligible tax-exempt organization to claim the credit, regardless of whether they are subject to this tax.