Contributors

Contribution Factors

Contribution and circularity factors are percentages used when calculating universal service fund obligations and the annual true up.

What is the contribution factor?

The contribution factor is the percentage of end user revenue that will be contributed to the universal service fund to support the universal service programs, as established by the FCC. The contribution factor changes every quarter.

What is the circularity factor?

The circularity factor is the percentage which lowers a filer's contribution base to prevent the assessment of universal service fees on the pass-through universal service fund charges that filers bill to their customers and are reported as revenue on the FCC Form 499.

After the contribution factor is applied to the quarterly contribution base, the circularity factor is then applied to reduce the contribution base resulting in a lower universal service fund invoice. Like the contribution factor, the circularity factor is established by the FCC and changes every quarter.

The FCC releases a Public Notice each quarter to announce the newest contribution and circularity factors on its website.

Applies to Quarter

Contribution Factor

Circularity Factor

Public Notice

October – December 2016

17.4%

14.9%

DA 16-1024

July – September 2016

17.9%

15.3%

DA 16-658

April – June 2016

17.9%

15.3%

DA 16-266

January – March 2016

18.2%

15.4%

DA 15-1412

October – December 2015

16.7%

14.5%

DA 15-1016

July – September 2015

17.1%

14.8%

DA 15-695

April – June 2015

17.4%

15.1%

DA 15-326

January – March 2015

16.8%

14.3%

DA 14-1832

October – December 2014

16.1%

13.8%

DA 14-1315

July – September 2014

15.7%

13.5%

DA 14-812

April – June 2014

16.6%

14.3%

DA 14-337

January – March 2014

16.4%

14.4%

DA 13-2388

October – December 2013

15.6%

13.6%

DA 13-1880

July – September 2013

15.1%

13.1%

DA 13-1361

April – June 2013

15.5%

13.7%

DA 13-422

January – March 2013

16.1%

13.8%

DA 12-2014

A historical record of factors can be found on the FCC's Contribution Factors & Quarterly Filings page.