Recording it after it is contracted is not part of the sins that deserve Allah’s curse as told by our beloved Prophet (peace and blessings be upon him). He said that Allah’s curse is on the two parties and writer and witnesses. That does not mean it is not a wrong doing. Of course an accountant records many normal transactions and he may also record the interest transactions.

The remedy is just istighfar, good deeds, and charity as Allah Almighty said what means, “Surely good actions wipe out the bad ones.” (Hud 11:114)

Allah Almighty knows best.