Canberra taxpayers have been forced to hand over $25,000 in insurance excess over an accident at Floriade almost five years ago.

The ACT Government said the incident took place in 2013, when a woman was walking across a steep vehicle crossing in Commonwealth Park during the annual flower festival.

The woman lost her footing at the junction between Regatta Place and an internal garden path.

The $25,000 figure was paid to insurer CGU Insurance, but it is not clear how much the woman was paid under the Government's policy or the extent of her injuries.

The insurance payment was made in February 2018, almost five years after the incident happened.

The ACT Government initially told the ABC the payment was made over a completely separate incident in which a woman tripped and fell in the dark at 2017's Enlighten Festival.

The payment was wrongly entered into the Government's invoices register as "Enlighten 2017 Insurance Claim Excess".

The Enlighten matter is still being negotiated between the woman and ACT Government solicitors and no settlement has been reached.

Editor's note (20/07/18): This story has been amended to reflect the correct set of circumstances that led to a payment of $25,000 in insurance excess. The ACT Government originally told the ABC the payment related to a separate incident at the Enlighten Festival in 2017.