## § 4.2. Rate of interest.

(a)

General.The annual rate of interest is the rate established by the Secretary of the Treasury of the United States under the IRC which is in effect on January 1 of a calendar year without regard to changes in the Federal rate during the year. The Secretary will annually certify the applicable rate of interest and recommend the certification be published in thePennsylvania Bulletinand be codified in subsections (b)—(q).(b)

Rate.The following rates have been certified by the Secretary: 1982—20%, 1983—16%, 1984—11%, 1985—13%, 1986—10%, 1987—9%, 1988—11%, 1989—11%, 1990—11%, 1991—11%, 1992—9%, 1993—7%, 1994—7%, 1995—9%, 1996—9%, 1997—9%, 1998—9%, 1999—7%, 2000—8%, 2001—9%, 2002—6%, 2003—5%, 2004—4%, 2005—5%, 2006—7%, 2007—8%, 2008—7%, 2009—5%, 2010—4%, 2011—3%, 2012—3%, 2013—3%, 2014—3%, 2015—3%, 2016—3%, 2017—4%, 2018—4%.(c) For 2004, all underpayments of tax will have an interest rate of 4%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 4%, all other overpayments will bear an interest rate of 2%.

(d) For 2005, all underpayments of tax will have an interest rate of 5%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 5%, all other overpayments will bear an interest rate of 3%.

(e) For 2006, all underpayments of tax will have an interest rate of 7%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 7%, all other overpayments will bear an interest rate of 5%.

(f) For 2007, all underpayments of tax will have an interest rate of 8%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 8%, all other overpayments will bear an interest rate of 6%.

(g) For 2008, all underpayments of tax will have an interest rate of 7%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 7%, all other overpayments will bear an interest rate of 5%.

(h) For 2009, all underpayments of tax will have an interest rate of 5%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 5%, all other overpayments will bear an interest rate of 3%.

(i) For 2010, all underpayments of tax will have an interest rate of 4%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 4%, all other overpayments will bear an interest rate of 2%.

(j) For 2011, all underpayments of tax will have an interest rate of 3%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 3%, all other overpayments will bear an interest rate of 1%.

(k) For 2012, all underpayments of tax will have an interest rate of 3%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 3%, all other overpayments will bear an interest rate of 1%.

(l) For 2013, all underpayments of tax will have an interest rate of 3%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 3%, all other overpayments will bear an interest rate of 1%.

(m) For 2014, all underpayments of tax will have an interest rate of 3%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 3%, all other overpayments will bear an interest rate of 1%.

(n) For 2015, all underpayments of tax will have an interest rate of 3%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 3%, all other overpayments will bear an interest rate of 1%.

(o) For 2016, all underpayments of tax will have an interest rate of 3%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 3%, all other overpayments will bear an interest rate of 1%.

(p) For 2017, all underpayments of tax will have an interest rate of 4%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 4%, all other overpayments will bear an interest rate of 2%.

(q) For 2018, all underpayments of tax will have an interest rate of 4%, overpayments of tax imposed under Article III of the TRC will bear an interest rate of 4%, all other overpayments will bear an interest rate of 2%.

SourceThe provisions of this § 4.2 amended December 19, 1986, effective January 1, 1987, 16 Pa.B. 4908; amended December 18, 1987, effective January 1, 1988, 17 Pa.B. 5286; amended December 23, 1988, effective January 1, 1989, 18 Pa.B. 5680; amended November 24, 1989, effective January 1, 1990, 19 Pa.B. 5081; amended November 23, 1990, effective January 1, 1991, 20 Pa.B. 5870; amended December 27, 1991, effective January 1, 1992, 21 Pa.B. 6012; amended December 25, 1992, effective January 1, 1993, 22 Pa.B. 6142; amended December 31, 1993, effective January 1, 1994, 24 Pa.B. 81; amended December 23, 1994, effective January 1, 1995, 24 Pa.B. 6486; amended December 15, 1995, effective January 1, 1995, 25 Pa.B. 5788; amended December 27, 1996, effective January 1, 1997, 26 Pa.B. 6224; amended December 26, 1997, effective January 1, 1998, 27 Pa.B. 6866; amended December 25, 1998, effective January 1, 1999, 28 Pa.B. 6351; amended December 17, 1999, effective January 1, 2000, 29 Pa.B. 6377; amended December 15, 2001, effective January 1, 2001, 31 Pa.B. 6494; amended December 21, 2001, effective January 1, 2002, 31 Pa.B. 6990; amended December 13, 2002, effective January 1, 2003, 32 Pa.B. 6220; amended January 16, 2004, effective January 1, 2004, 34 Pa.B. 448; amended December 30, 2004, effective January 1, 2005, 35 Pa.B. 78; amended December 30, 2005, effective January 1, 2006, 35 Pa.B. 7067; amended December 29, 2006, effective January 1, 2007, 36 Pa.B. 8021; amended December 28, 2007, effective January 1, 2008, 37 Pa.B. 6970; amended January 2, 2009, effective January 1, 2009, 39 Pa.B. 103; amended December 24, 2009, effective January 1, 2010, 39 Pa.B. 7256; amended December 24, 2010, effective January 1, 2011, 40 Pa.B. 7443; amended December 30, 2011, effective January 1, 2012, 41 Pa.B. 7041; amended December 21, 2012, effective January 1, 2013, 42 Pa.B. 7775; amended December 27, 2013, effective January 1, 2014, 43 Pa.B. 7602; amended December 26, 2014, effective January 1, 2015, 44 Pa.B. 8063; amended January 8, 2016, effective January 1, 2016, 46 Pa.B. 297; amended December 23, 2016, effective January 1, 2017, 46 Pa.B. 8108; amended December 22, 2017, effective January 1, 2018, 47 Pa.B. 7789. Immediately preceding text appears at serial pages (385384) to (385385).

Cross ReferencesThis section cited in 61 Pa. Code § 35.2 (relating to interest, additions, penalties, crimes and offenses).

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