This is the complete listing of AFR rates for June 2012 straight from the IRS website. I hope it assists you.

Section 1274.–Determination of Issue Price in the Case of Certain Debt Instruments Issued for Property

(Also Sections 42, 280G, 382, 412, 467, 468, 482, 483, 642, 807, 846, 1288, 7520, 7872.)
Rev. Rul. 2012-15
This revenue ruling provides various prescribed rates for federal
income tax purposes for June 2012 (the current month). Table 1 contains
the short-term, mid-term, and long-term applicable federal rates (AFR) for
the current month for purposes of section 1274(d) of the Internal Revenue
Code. Table 2 contains the short-term, mid-term, and long-term adjusted
applicable federal rates (adjusted AFR) for the current month for purposes
of section 1288(b). Table 3 sets forth the adjusted federal long-term rate
and the long-term tax-exempt rate described in section 382(f). Table 4
contains the appropriate percentages for determining the low-income
housing credit described in section 42(b)(1) for buildings placed in service
during the current month. However, under section 42(b)(2), the
applicable percentage for non-federally subsidized new buildings placed in
service after July 30, 2008, and before December 31, 2013, shall not be
less than 9%. Finally, Table 5 contains the federal rate for determining the
present value of an annuity, an interest for life or for a term of years, or a
remainder or a reversionary interest for purposes of section 7520.

REV. RUL. 2012-15 TABLE 1
Applicable Federal Rates (AFR) for June 2012
Period for Compounding
Annual Semiannual Quarterly Monthly
Short-term

AFR .23% .23% .23% .23%
110% AFR .25% .25% .25% .25%
120% AFR .28% .28% .28% .28%
130% AFR .30% .30% .30% .30%

Mid-term

AFR 1.07% 1.07% 1.07% 1.07%
110% AFR 1.18% 1.18% 1.18% 1.18%
120% AFR 1.28% 1.28% 1.28% 1.28%
130% AFR 1.39% 1.39% 1.39% 1.39%
150% AFR 1.62% 1.61% 1.61% 1.60%
175% AFR 1.88% 1.87% 1.87% 1.86%

Long-term

AFR 2.64% 2.62% 2.61% 2.61%
110% AFR 2.90% 2.88% 2.87% 2.86%
120% AFR 3.16% 3.14% 3.13% 3.12%
130% AFR 3.44% 3.41% 3.40% 3.39%

REV. RUL. 2012-15 TABLE 2
Adjusted AFR for June 2012
Period for Compounding
Annual Semiannual Quarterly Monthly
Short-term
adjusted AFR .26% .26% .26% .26%
Mid-term
adjusted AFR 1.16% 1.16% 1.16% 1.16%
Long-term
adjusted AFR 3.06% 3.04% 3.03% 3.02%
REV. RUL. 2012-15 TABLE 3
Rates Under Section 382 for June 2012
Adjusted federal long-term rate for the current month 3.06%
Long-term tax-exempt rate for ownership changes during the
current month (the highest of the adjusted federal long-term
rates for the current month and the prior two months.) 3.26%

REV. RUL. 2012-15 TABLE 4
Appropriate Percentages Under Section 42(b)(1) for June 2012
Note: Under Section 42(b)(2), the applicable percentage for non-federally
subsidized new buildings placed in service after July 30, 2008, and before
December 31, 2013, shall not be less than 9%.
Appropriate percentage for the 70% present value low-income
housing credit 7.43%
Appropriate percentage for the 30% present value low-income
housing credit 3.18%
REV. RUL. 2012-15 TABLE 5
Rate Under Section 7520 for June 2012
Applicable federal rate for determining the present value of an
annuity, an interest for life or a term of years, or a remainder or
reversionary interest 1.2%