Section 63-3626 - REFUNDS, LIMITATIONS, INTEREST(a) Subject to the provisions of subsection (b) of this section, if any amount due under this chapter has been overpaid, the excess amount may be credited on any amount then due to the state tax commission from the person by whom the excess was paid and any balance refunded to that person.(b)(1) No such credit or refund shall be allowed after three (3) years from the time the payment was made to the state tax commission, unless before the expiration of such period a written claim therefor is filed with the state tax commission by the claimant or the claimant's representative, but only if the claimant has authorized in writing the representative to file a claim.(2) For periods in regard to which the state tax commission asserts a deficiency under section 63-3629 or 63-3630, Idaho Code, a claim for refund, relating to the period to which the deficiency relates, must be made on or before the later of: (i) The date provided in subsection (b)(1) of this section; or(ii) The date upon which any administrative or judicial proceeding relating to such deficiency is finally resolved; or(iii) The date specified in any agreement under section 63-3633(g), Idaho Code.(3) A taxpayer claiming a refund of amounts paid in obedience to such deficiencies must do so by appealing within the time limits prescribed in sections 63-3631 and 63-3049, Idaho Code.(c) Interest shall be allowed on the amount of such credits or refunds at the rate provided in section 63-3045, Idaho Code, from the date such tax was paid to the state tax commission.(d) If the state tax commission denies a claim for refund in whole or in part, it shall provide notice of the denial in the manner provided in section 63-3629(c), Idaho Code. The claimant may petition the state tax commission for a redetermination of the denial as provided in section 63-3631, Idaho Code. The state tax commission shall issue a final decision pursuant to the requirements of section 63-3045B, Idaho Code. Appeal of a tax commission decision denying in whole or in part a claim for refund shall be made in accordance with and within the time limits prescribed in section 63-3049, Idaho Code.[63-3626, added 1965, ch. 195, sec. 26, p. 408; am. 1970, ch. 223, sec. 1, p. 630; am. 1971, ch. 214, sec. 2, p. 936; am. 1980, ch. 11, sec. 1, p. 24; am. 1981, ch. 290, sec. 4, p. 599; am. 1991, ch. 176, sec. 8, p. 438; am. 1992, ch. 16, sec. 8, p. 48; am. 1997, ch. 62, sec. 7, p. 129; am. 2002, ch. 38, sec. 1, p. 85.]