diff --git a/src/report/locale-specific/us/taxtxf.scm b/src/report/locale-specific/us/taxtxf.scm
index 74c0585acd..6fbb414de5 100644
--- a/src/report/locale-specific/us/taxtxf.scm
+++ b/src/report/locale-specific/us/taxtxf.scm
@@ -632,7 +632,9 @@
                    (gnc:account-get-type account) #f)))
 
 	(set! work-done (+ 1 work-done))
-	(gnc:report-percent-done (* 100 (/ work-done work-to-do)))
+	(gnc:report-percent-done (* 100 (if (> work-to-do 0)
+					    (/ work-done work-to-do)
+					    1)))
         (if (gnc:account-is-inc-exp? account)
             (let* ((children (gnc:account-get-children account))
                    (to-special #f)	; clear special-splits-period