The 2015 failure sparked a massive mudslide that killed 19 people.
On Thursday, the world's biggest mining firm said it would book another $3.2 billion charge over the incident.
That comes a month after a judge in Brazil ruled that BHP, partner Vale and their joint venture, should pay close to $10 billion in damages over the collapse.
The ruling is still subject to appeal.
BHP also flagged a $2.5 billion impairment in relation to its Australian nickel business.
A jump in supply of the metal from Indonesia has sparked a swathe of restructuring and writedowns across the sector.
Now BHP says the "unfavourable conditions" are set to last for a long time.
It says it will review nickel production, and could mothball its operations.
The firm is set to report first-half earnings next week.
Analysts expect profits to broadly hold up, underpinned by strong iron ore prices.
One told Reuters that the new writedowns were unlikely to hit dividend payments.
