diff --git a/C4/Acquisition.pm b/C4/Acquisition.pm
index 5372b8f0ba..728f95bb01 100644
--- a/C4/Acquisition.pm
+++ b/C4/Acquisition.pm
@@ -2434,8 +2434,14 @@ sub GetInvoices {
           ) AS is_linked_to_subscriptions,
           SUM(aqorders.quantityreceived) AS receiveditems,
           SUM(aqorders.quantity) AS itemsexpected,
-          COALESCE(SUM(aqorders.unitprice_tax_excluded * aqorders.quantity), 0) AS total_tax_excluded,
-          COALESCE(SUM(aqorders.unitprice_tax_included * aqorders.quantity), 0) AS total_tax_included,
+          COALESCE(
+            (SELECT SUM(o.unitprice_tax_excluded * o.quantity) FROM aqorders o WHERE o.invoiceid = aqinvoices.invoiceid),
+            0
+          ) AS total_tax_excluded,
+          COALESCE(
+            (SELECT SUM(o.unitprice_tax_included * o.quantity) FROM aqorders o WHERE o.invoiceid = aqinvoices.invoiceid),
+            0
+          ) AS total_tax_included,
           COALESCE(
             (SELECT SUM(adj.adjustment) FROM aqinvoice_adjustments adj WHERE adj.invoiceid = aqinvoices.invoiceid),
             0
diff --git a/t/db_dependent/Acquisition/Invoices.t b/t/db_dependent/Acquisition/Invoices.t
index 42408fd047..66af46477b 100755
--- a/t/db_dependent/Acquisition/Invoices.t
+++ b/t/db_dependent/Acquisition/Invoices.t
@@ -7,9 +7,10 @@ use C4::Biblio qw( AddBiblio );
 use Koha::Acquisition::Booksellers;
 use Koha::Acquisition::Orders;
 use Koha::Database;
+use Koha::Subscription;
 
 use Test::NoWarnings;
-use Test::More tests => 31;
+use Test::More tests => 33;
 
 BEGIN {
     use_ok(
@@ -198,6 +199,62 @@ subtest 'GetInvoices() returns financial totals' => sub {
     cmp_ok( $inv2->{total_tax_included}, '>=', 0, 'total_tax_included is non-negative' );
 };
 
+subtest 'GetInvoices() financial totals are not inflated by multiple subscriptions on a biblio' => sub {
+    plan tests => 2;
+
+    my ($sub_biblionumber) = AddBiblio( MARC::Record->new, '' );
+
+    my $sub_order = Koha::Acquisition::Order->new(
+        {
+            basketno     => $basketno,
+            quantity     => 3,
+            biblionumber => $sub_biblionumber,
+            budget_id    => $budget->{budget_id},
+        }
+    )->store;
+
+    my $sub_invoiceid = AddInvoice(
+        invoicenumber => 'invoice_subs_test', booksellerid => $booksellerid, unknown => "unknown",
+    );
+    my $sub_invoice = GetInvoice($sub_invoiceid);
+
+    my $order_data = $sub_order->unblessed;
+    $order_data->{unitprice}              = 7;
+    $order_data->{unitprice_tax_excluded} = 7;
+    $order_data->{unitprice_tax_included} = 7;
+
+    ModReceiveOrder(
+        {
+            biblionumber     => $sub_biblionumber,
+            order            => $order_data,
+            quantityreceived => 3,
+            invoice          => $sub_invoice,
+        }
+    );
+
+    my @inv_before = GetInvoices( invoicenumber => 'invoice_subs_test' );
+    my $inv_before = $inv_before[0];
+
+    # Attach two subscriptions to the order's biblio. The subscription table
+    # is LEFT JOINed on biblionumber in GetInvoices(), so without correlated
+    # subqueries these totals would be multiplied by the number of
+    # subscriptions on the biblio.
+    Koha::Subscription->new( { biblionumber => $sub_biblionumber } )->store;
+    Koha::Subscription->new( { biblionumber => $sub_biblionumber } )->store;
+
+    my @inv_after = GetInvoices( invoicenumber => 'invoice_subs_test' );
+    my $inv_after = $inv_after[0];
+
+    is(
+        $inv_after->{total_tax_excluded}, $inv_before->{total_tax_excluded},
+        'total_tax_excluded is unaffected by additional subscriptions on the biblio'
+    );
+    is(
+        $inv_after->{total_tax_included}, $inv_before->{total_tax_included},
+        'total_tax_included is unaffected by additional subscriptions on the biblio'
+    );
+};
+
 my $invoicesummary1 = GetInvoice($invoiceid1);
 is( $invoicesummary1->{'invoicenumber'}, 'invoice1', 'GetInvoice retrieves correct invoice' );
 is(