You can find this information via several pages when logged in to your Bondora account. First, check your Cash Flow page and add ‘Interest Write-Off’, ‘Principal Write-Off’ and ‘Total Write-Off’ to the view on the settings.
You can also check this is on the investments page. There you can add the filter ‘Write-Off Principal Amount’.
To see the principal write-offs, you can also check the deducted sums in your tax report which you can download from the Reports section.
The final place you can check this from is on the Secondary Market. Add ‘Write-Off Amounts’ under settings and look at the loan schedule and collection events on each individual loan.