From c00894db2d1d410dd17700df4b86733cc6d88108 Mon Sep 17 00:00:00 2001
From: Frank Cools <frank@covago.com>
Date: Tue, 7 Oct 2025 14:50:59 +0200
Subject: [PATCH] Fix small difference handling for proper rounding

- Added special handling for differences < 1.0 (like -0.90)
- Small differences now create rounding-only entries (758000/658000)
- No main balancing entry (4455100/4456700) for small differences
- Should show 758000 with 0.90 instead of 4455100 with 1.00
---
 core/class/declarationtva_pdf.class.php | 26 ++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/core/class/declarationtva_pdf.class.php b/core/class/declarationtva_pdf.class.php
index 1d3840e..32b5f19 100644
--- a/core/class/declarationtva_pdf.class.php
+++ b/core/class/declarationtva_pdf.class.php
@@ -2080,7 +2080,31 @@ class DeclarationTVA_PDF
         // Calculate rounded difference for main entry
         $rounded_difference = round($difference);
         
-        if ($rounded_difference != 0) {
+        // For very small differences, don't create main balancing entry
+        if (abs($difference) < 1.0) {
+            error_log("DeclarationTVA: Small difference detected: " . $difference . ", creating rounding-only entry");
+            if (abs($difference) >= 0.01) {
+                if ($difference > 0) {
+                    // Credit difference - rounding goes to 658000 debit
+                    $balancing_entries[] = array(
+                        'account_code' => '658000',
+                        'account_label' => $this->getAccountLabel('658000'),
+                        'entry_label' => $declaration->declaration_name,
+                        'debit' => $this->formatAmountReal($difference),
+                        'credit' => ''
+                    );
+                } else {
+                    // Debit difference - rounding goes to 758000 credit
+                    $balancing_entries[] = array(
+                        'account_code' => '758000',
+                        'account_label' => $this->getAccountLabel('758000'),
+                        'entry_label' => $declaration->declaration_name,
+                        'debit' => '',
+                        'credit' => $this->formatAmountReal(abs($difference))
+                    );
+                }
+            }
+        } elseif ($rounded_difference != 0) {
             // Main balancing entry with rounded amount
             if ($difference > 0) {
                 // More credits than debits - need debit entry (4456700)