The C-listed pool at the Vennel and Lochside leisure centre both remain boarded up four years after they were replaced by the town's £39 million community campus.
Town councillors support plan
All four Forfar local members backed a policy and resources committee plan to add £25k to the £37k already committed from the common good.
The Forfar Town Centre Fund will provide the balance of £20k.
Conservative Braden Davy said: “Forfar toilets have been an ongoing issue and problem, especially as we have been made to stay local.
“This provision is welcome, and allows people to start using the loch much more easily, without the future of Lochside being decided.”
He said previous efforts to provide toilets had been marred by vandalism, attempts to set fire to them and break-ins.