Dua to pay off debts - Dua To Pay Off Your Debts ᴴᴰ | Relief From Debts and Worry Powerful Wazifa for Gaining Wealth - Qarz ki Dua By Saad Al Qureshi
Get Rich and
Recite:
اللَّهُمَّ اكْفِنِي بِحَلَالِكَ عَنْ حَرَامِكَ وَأَغْنِنِي بِفَضْلِكَ عَمَّنْ سِوَاكْ
"O Allah, save me from haraam and make the halaal sufficient and by your boon/favour make me independent from others".

(Mishkat)
These words were spoken by Ali (R.A.) taught by Prophet Mohammad (SAW.) when a person expressed a shortfall in his wealth to Ali (R.A.) he said: "Shall I not show you what Prophet Mohammad (SAW) taught me, even if there is a debt equal to that of a huge mountain then Allah will pay it". Ali (R.A.) then recited the above dua.

(Tirmidhi)