We sold our house in France in July 2023. We had to appoint an independent advisor to assess our french tax liability, and we ended up paying a large amount of capital gains tax. We actually sold the house at a loss. The advisor insisted on us having bank statements from 15 years ago as the definitive evidence that we did pay for the house, which was a new build.
We didn't have them and couldn't get the from the bank and we had other evidence, but we still had to pay the capital gains.
We were told we can appeal and we are preparing that, but don't know what the format should be.
Has anyone else experienced this and what happened?