Repayment of Social Security Income when Repayment Occurs in a Subsequent Year

Repayment of Social Security Income when Repayment Occurs in a Subsequent Year; I have income this year from Social Security and have received their 1099.  However, I have submitted SSA Form 521, Withdrawal of Application in which when approved I will pay back all my income I received in 2015 in year 2016.  How should this be treated?  I notice on the SSA-1099 that they do allow for Benefits Repaid - Box 4. Should I report the income on this year's return and make sure the correct entry is recorded on next year's 1099 or record this in some other way?