Ordered that the order is affirmed insofar as appealed from, without costs or disbursements.
The father's failure to pay child support as ordered constituted "prima facie evidence of a willful violation" of the Family Court's February 13, 2004, order of support (Family Ct Act § 454 [a]). The burden then shifted to the father "to offer competent, credible evidence of his inability to comply with that order" ( Matter of Watson v. Watson, 21 AD3d 497, 498; see Matter of Powers v. Powers, 86 NY2d 63, 69-70). The father admitted that in January 2004 he voluntarily left his job in Westchester County and moved to Otsego County, where he obtained employment at less than half the salary he had been earning in Westchester County. The father's assertion that he felt obliged to relocate in order to care for his 60-year-old mother, who had back problems that required surgery, did not constitute sufficient proof that the change in his financial circumstances was unavoidable, and was especially unconvincing in light of the evidence that he had two sisters who already lived in the immediate vicinity of his mother ( see Matter of Reach v. Reach, 307 AD2d 512; Matter of Diamond v. Diamond, 254 AD2d 288, 289; Adinolfi v. Adinolfi, 242 AD2d 311; Matter of Doyle v. Doyle, 230 AD2d 795, 796). Thus, the father "failed to sustain his burden to rebut the prima facie evidence of willfulness by showing sufficient proof of his inability to pay" ( Matter of Watson v. Watson, supra at 498). Accordingly, the Support Magistrate's finding that the father willfully failed to obey the order of support "was supported by the record and properly confirmed by the Family Court" ( Matter of Zielazny v. Zielazny, 271 AD2d 539).