The retailer has transferred £450m to a sister company owned by Wal-Mart.
The dividend was the first Asda had paid to its parent company since 2009, when it paid £1.4bn.
It was transferred to Corinth Investments, owned by Wal-Mart Stores UK. Documents also show that a higher sum of £505m was then transferred from another Wal-Mart-owned company based in Britain to another company it owns in Amsterdam, Broadstreet European Holdings.
Despite sliding sales, the money was paid after Asda made record profits of £975m in the year to December 2015, a rise of 5.9% from the previous year. Sales have since dipped 3.7%.
Asda has stated that the payment was a “capital reduction, part of an exercise to simplify group structure”.