diff --git a/hledger/Hledger/Cli/Commands/Balance.hs b/hledger/Hledger/Cli/Commands/Balance.hs
index 215adc004..b29c7699b 100644
--- a/hledger/Hledger/Cli/Commands/Balance.hs
+++ b/hledger/Hledger/Cli/Commands/Balance.hs
@@ -476,7 +476,7 @@ multiBalanceReportAsCsv opts@ReportOpts{average_, row_total_}
    ++ ["total"   | row_total_]
    ++ ["average" | average_]
   ) :
-  [displayName a :
+  [accountNameDrop (drop_ opts) (displayFull a) :
    map (wbToText . showMixedAmountB (balanceOpts False opts))
    (amts
     ++ [rowtot | row_total_]
diff --git a/hledger/test/balance/drop.test b/hledger/test/balance/drop.test
index 283dbc092..de1e355c8 100644
--- a/hledger/test/balance/drop.test
+++ b/hledger/test/balance/drop.test
@@ -41,3 +41,13 @@ $ hledger -f - balance --tree --no-total --drop 1
                    1    q
                    1  ...
 >=
+
+# 4. Drop works with csv output in tree mode
+$ hledger -f - balance --tree --no-total --output-format=csv --drop 1
+"account","balance"
+"k","1"
+"i:p","1"
+"j","2"
+"j:q","1"
+"...","1"
+>=
diff --git a/hledger/test/balancesheet.test b/hledger/test/balancesheet.test
index ef1bf0c93..2e6e2618f 100644
--- a/hledger/test/balancesheet.test
+++ b/hledger/test/balancesheet.test
@@ -305,3 +305,25 @@ Balance Sheet 2020-03-25
              ||            
 =============++============
  Net:        ||         $1 
+
+# 12. Check csv output (for tree mode) (#1566)
+$ hledger -f - balancesheet --tree --output-format=csv
+"Balance Sheet 2020-03-25",""
+"Account","2020-03-25"
+"Assets",""
+"assets:a","$1"
+"total","$1"
+"Liabilities",""
+"total"
+"Net:","$1"
+
+# 13. Check csv output (for tree mode) with dropping
+$ hledger -f - balancesheet --tree --output-format=csv --drop 1
+"Balance Sheet 2020-03-25",""
+"Account","2020-03-25"
+"Assets",""
+"a","$1"
+"total","$1"
+"Liabilities",""
+"total"
+"Net:","$1"