¶1 In June 2002, Britannia Holdings Limited obtained an $11 million judgment against Bernard and Judith Greer for securities fraud and initiated proceedings to collect the judgment. In September 2004, the trial court held the Greers in contempt for disobeying multiple orders to deliver assets and to provide a credible accounting. The court gave the Greers four months to deliver $635,000 to Britannia or be jailed for contempt. The court also ruled that a trust created by Bernard Greer’s father had lost its character as a spendthrift trust and ordered execution on the trust assets. The Greers appeal both orders.
¶2 We affirm the order of execution on the spendthrift trust because the trust had lost its protected character. We hold the contempt order did not violate the constitutional prohibition against imprisonment for debt. But we reverse the contempt order because the contemnor must hold the keys to his release, and the court made no finding that the Greers had the present ability to pay the purge amount.
BACKGROUND
¶3 Bernard Greer ran an investment company called Alistar Capital, which bought and sold interests in high-risk companies. In July 1998, Alistar and Britannia entered into an investment management agreement. After Greer *929was unable to account for $6.1 million of funds Britannia had placed with Alistar for investment purposes, Britannia sued Alistar and Greer, alleging fraud, and obtained a judgment of $11 million, which was upheld on appeal.1
¶4 Britannia has been actively attempting to enforce the judgment through supplemental proceedings pursuant to chapter 6.32 RCW. The trial court entered an order requiring the Greers to deliver money and property to the King County sheriff. The Greers deposited promissory notes relating to loans made to their daughter Nan and to a Nicaraguan charity they had established, Alistar Nicaragua, but claimed they had no further assets. The court also ordered the Greers to provide Britannia with information and documents. The court made further orders for a full accounting on July 8, 2003, and November 14, 2003. The Greers responded to these orders by claiming they have no control over any further assets because the funds are held either in a trust of which they are not the beneficiaries (the Rainbow Trust) or by a charity over which they have no control (Alistar Nicaragua). But in April 2004, Britannia was able to examine 30 boxes of documents and computer equipment seized by the sheriff from the Greers’ Issaquah home. Evidence gleaned from these documents and records bring the Greers’ assertions regarding their lack of assets into serious doubt.
¶5 On September 29, 2004, the trial court found that after the 2002 judgment against them, the Greers “had control over at least $635,000 and, rather than paying any of this money to Britannia or the Court, transferred the money away [to Nicaragua and Belize].”2 The court found that the Greers knowingly disobeyed court orders entered in March, July, and November 2003.3
*930¶6 The court held the Greers in contempt. The order provides that:
the GREERS can PURGE themselves of the present contempt BY PAYING to Britannia care of Britannia’s attorneys SIX HUNDRED THIRTY-FIVE THOUSAND DOLLARS ($635,000), which represents funds transferred in violation of this Court’s Judgment and Orders; and
If by February 1, 2005, the GREERS have not purged themselves [by paying $635,000], they shall turn themselves in to the KING COUNTY SHERIFF on that date and the Sheriff shall imprison them until further Order of this Court.[4]
¶7 The court also granted Britannia’s motion for execution on the Bernard L. Greer Revocable Trust, a spendthrift trust established by Greer’s father in 1967. We granted discretionary review and stayed enforcement of the contempt order.
DISCUSSION
¶8 The Greers claim that imprisonment as a contempt sanction is unconstitutional in these circumstances. They further claim the order violates due process because they do not have the present ability to purge the contempt.5 Finally, they contend the court erred in ordering execution on the spendthrift trust.
¶9 Imprisonment for Debt. The Greers first argue that an order subjecting a debtor to incarceration for failure to pay moneys constitutes imprisonment for debt, in violation of article I, section 17 of the Washington Constitution: “There shall be no imprisonment for debt, except in cases of absconding debtors.”
*931¶10 This prohibition resulted from our fierce determination to avoid the debtors’ prisons of England and the Eastern states.6 It has long been settled, however, that coercive imprisonment for contumacious refusal to obey a lawful order to pay money is not imprisonment for debt.
¶11 In In re Habeas Corpus of Cave,7 Cave refused to pay $447 in alimony and attorney fees to his ex-wife. The trial court determined that the $447 was in Cave’s possession and control, and when he continued to refuse to pay, the court found Cave in contempt and ordered him imprisoned. The Washington Supreme Court affirmed, holding that the finding that Cave possessed the money but refused to comply with the order to pay “gave the court authority to punish by immediate imprisonment until the order was complied with.”8 Although Cave involved nonpayment of alimony,9 the Washington Supreme Court later observed that:
[T]he real ground of the [Cave] decision is that imprisonment can be used as a means of coercing the performance of the order of the court; to compel the defendant to do a thing which was in his power to do; not as a punishment for failure to satisfy a judgment of alimony.[10]
¶12 Further, in Brantley v. Brantley, the court examined the historical context of enforcement of judgments by a writ of execution against the person of the debtor, resulting in *932the debtor’s imprisonment until the judgment was satisfied, holding that “ ‘[o]nly executions against the person of the defendant in enforcement of judgments at law were prohibited by the constitution.’ ”11
¶13 The goal of civil contempt proceedings is to compel compliance with a court order.12 Exercise of the contempt power is authorized by chapter 7.21 RCW, which permits imprisonment to coerce obedience of any lawful order.13 The supplemental proceedings statute also specifically provides for use of contempt powers.14 The fact that the contumacious behavior is disobedience of an order entered in supplemental proceedings does not transform *933the proceedings into an execution against the person of the defendant.
¶14 Where a court orders a party to deliver money or property in supplemental proceedings and the party is able but refuses to comply, a remedial contempt order imposing imprisonment does not violate the constitutional prohibition against imprisonment for debt.
¶15 Validity of the Contempt Order Here. A contempt sanction involving imprisonment remains coercive, and therefore civil, only if the contemnor is able to purge the contempt and obtain his release by committing an affirmative act. In other words, the contemnor “carries the keys of his prison in his own pocket” and will be released upon obeying the order.15 Accordingly, there must be a showing that the contemnor has the means to comply. Coercive incarceration loses its coercive character and becomes punitive where the contemnor cannot purge the contempt.16 This violates due process.17
¶16 The Greers argue they are presently unable to pay the purge amount and that the court’s failure to so find renders the order invalid. Britannia responds that the burden was upon the Greers to demonstrate they could not comply and that they failed to do so.
¶17 It is well settled that “ ‘the law presumes that one is capable of performing those actions required by the court. . . [and the] inability to comply is an affirmative defense.’ ”18 But exercise of the contempt power is appropriate only when “the court finds that the person has failed *934or refused to perform an act that is yet within the person’s power to perform.”19 Thus, a threshold requirement is a finding of current ability to perform the act previously ordered.
¶18 Although there is evidence to support the court’s finding that the Greers were contumacious,20 the trial court failed to make a finding that the Greers had a present ability to pay the purge amount. Instead, the court found the Greers had, in 2002, possessed $635,000 and had “transferred the money away.”21 This is not a finding that at the time of the contempt order in 2004, they could purge the contempt. We must therefore reverse, because without this finding,22 the contempt was not coercive but impermissibly penal.23
¶19 We do not, however, agree with the Greers’ contention that the court must identify a specific fund from which the purge amount must be paid. None of the cases cited by the Greers limits the court’s power in such a way. Although control of sufficient assets must be established, neither due process nor RCW 6.32.080 requires the court to identify a specific fund. Similarly, there is no basis for the Greers’ assertions that Britannia must pursue collection *935efforts via the Uniform Fraudulent Transfer Act24 prior to initiating supplemental proceedings.
¶20 Affirmed in part, reversed in part and remanded.
¶21 The balance of this opinion having no precedential value, the panel has determined it should not be published in accordance with RCW 2.06.040.
Baker and Becker, JJ., concur.