In most cases, the costs will be split between the divorcing couple as follows: where adultery is the fact proven, the respondent will pay for 100% of the costs of the divorce (including the court fee). For unreasonable behaviour, the couple will split the costs 50/50.

Can you file for divorce if you committed adultery?

Because of this, it is not possible for someone to file for a divorce whilst relying on their own adultery. Under such circumstances, the logical solution is actually pretty simple: the party that committed the adultery can pay their spouse the fees in question before they file for the divorce.