diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60519dd..3327633 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 
 Toutes les modifications importantes du projet sont consignées ici. Le format s’inspire de [Keep a Changelog](https://keepachangelog.com/fr/1.1.0/) et le projet suit le [versionnage sémantique](https://semver.org/lang/fr/).
 
+## [1.0.0-rc.13] — 2026-09-08
+
+### Gestion du catalogue vétérinaire
+
+- ajout d’une commande de modification pour les tarifs vétérinaires déjà enregistrés (`#24`) ;
+- ajout d’une suppression confirmée qui conserve les montants, libellés et remises des dépenses historiques.
+
 ## [1.0.0-rc.12] — 2026-09-08
 
 ### Tarifs d’adoption et environnement local
diff --git a/HISTORIQUE.md b/HISTORIQUE.md
index b04839e..842db0b 100644
--- a/HISTORIQUE.md
+++ b/HISTORIQUE.md
@@ -57,3 +57,7 @@ Ajout de critères d’accueil par salle et de quatre créneaux de tournée conf
 ## `1.0.0-rc.12` — Tarifs par espèce
 
 Remplacement des deux montants globaux par une grille d’adoption propre à chaque espèce, avec tarif fixe ou libre.
+
+## `1.0.0-rc.13` — Catalogue vétérinaire
+
+Ajout de la modification et de la suppression sécurisée des tarifs, sans altérer les dépenses historiques.
diff --git a/VERSION b/VERSION
index 884b1ae..624bf34 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.0-rc.12
+1.0.0-rc.13
diff --git a/app/Controllers/SettingsController.php b/app/Controllers/SettingsController.php
index 6496598..8b60de1 100644
--- a/app/Controllers/SettingsController.php
+++ b/app/Controllers/SettingsController.php
@@ -613,6 +613,27 @@ final class SettingsController
         }
         exit();
     }
+    public static function deleteTariff(): void
+    {
+        self::admin();
+        self::postOnly();
+        $id = (int) ($_POST['id'] ?? 0);
+        $label = PricingService::deleteTariff($id);
+        if ($label === null) {
+            http_response_code(404);
+            echo h(t('error.tariff_not_found'));
+            return;
+        }
+        AuditService::log(
+            'tariff_deleted',
+            '/settings/pricing/tariff/delete',
+            'Tarif supprimé : ' . $label,
+            'clinic_tariff',
+            $id,
+        );
+        header('Location: /settings/pricing?saved=1');
+        exit();
+    }
     public static function saveAdoptionFees(): void
     {
         self::admin();
diff --git a/app/Routes/web.php b/app/Routes/web.php
index 8ff30b2..3205883 100644
--- a/app/Routes/web.php
+++ b/app/Routes/web.php
@@ -329,6 +329,9 @@ switch ($path) {
     case '/settings/pricing/tariff':
         SettingsController::saveTariff();
         break;
+    case '/settings/pricing/tariff/delete':
+        SettingsController::deleteTariff();
+        break;
     case '/settings/pricing/discount':
         SettingsController::saveDiscount();
         break;
diff --git a/app/Services/PricingService.php b/app/Services/PricingService.php
index 7ab7ac8..9b41b5b 100644
--- a/app/Services/PricingService.php
+++ b/app/Services/PricingService.php
@@ -54,6 +54,19 @@ final class PricingService
         }
         return (int) $rule[$sterilized ? 'fee_after_sterilization' : 'fee_before_sterilization'];
     }
+
+    public static function deleteTariff(int $id): ?string
+    {
+        $db = DB::pdo();
+        $stmt = $db->prepare('SELECT label FROM clinic_tariffs WHERE id=:id');
+        $stmt->execute([':id' => $id]);
+        $label = $stmt->fetchColumn();
+        if ($label === false) {
+            return null;
+        }
+        $db->prepare('DELETE FROM clinic_tariffs WHERE id=:id')->execute([':id' => $id]);
+        return (string) $label;
+    }
     public static function tariffs(bool $active = false): array
     {
         $w = $active ? 'WHERE ct.active=1 AND dc.deleted_at IS NULL' : '';
diff --git a/app/Views/evolutions.php b/app/Views/evolutions.php
index 4793e2e..13f7036 100644
--- a/app/Views/evolutions.php
+++ b/app/Views/evolutions.php
@@ -31,9 +31,9 @@
     <div class="col-lg-6">
         <section class="card h-100">
             <div class="card-body">
-                <span class="badge bg-blue-lt mb-2">1.0.0-rc.12</span>
-                <h3>Tarifs d’adoption par espèce</h3>
-                <p class="text-muted">Montants avant ou après stérilisation, avec possibilité de laisser le tarif libre.</p>
+                <span class="badge bg-blue-lt mb-2">1.0.0-rc.13</span>
+                <h3>Catalogue vétérinaire modifiable</h3>
+                <p class="text-muted">Tarifs modifiables ou supprimables tout en préservant les dépenses historiques.</p>
             </div>
         </section>
     </div>
diff --git a/app/Views/settings_pricing.php b/app/Views/settings_pricing.php
index bf0e7e2..7458025 100644
--- a/app/Views/settings_pricing.php
+++ b/app/Views/settings_pricing.php
@@ -98,36 +98,37 @@
             <div class="text-muted small"><?= h(t('pricing.add_label_help')) ?></div>
         </div>
     </div>
-    <form method="post" action="/settings/pricing/tariff">
+    <form method="post" action="/settings/pricing/tariff" id="tariffForm">
+        <input type="hidden" name="id" id="tariffId" value="0">
         <div class="card-body row g-3">
             <div class="col-md-4"><label class="form-label required"><?= h(t('pricing.structure')) ?></label><select
-                    class="form-select" name="clinic_contact_id" required>
+                    class="form-select" name="clinic_contact_id" id="tariffClinic" required>
                     <option value="">—</option><?php foreach ($clinics as $c): ?><option value="<?= (int)$c['id'] ?>">
                         <?= h($c['name']) ?></option><?php endforeach; ?>
                 </select></div>
             <div class="col-md-5"><label class="form-label required"><?= h(t('pricing.label')) ?></label><input
-                    class="form-control" name="label" required placeholder="<?= h(t('pricing.label_example')) ?>"></div>
+                    class="form-control" name="label" id="tariffLabel" required placeholder="<?= h(t('pricing.label_example')) ?>"></div>
             <div class="col-md-3"><label class="form-label"><?= h(t('pricing.catalog_price')) ?></label>
-                <div class="input-group"><input class="form-control" name="amount" inputmode="decimal" required><span
+                <div class="input-group"><input class="form-control" name="amount" id="tariffAmount" inputmode="decimal" required><span
                         class="input-group-text">€</span></div>
             </div>
             <div class="col-md-3"><label class="form-label"><?= h(t('settings.category')) ?></label><select
-                    class="form-select" name="category"><?php foreach ($categories as $k => $v): ?><option
+                    class="form-select" name="category" id="tariffCategory"><?php foreach ($categories as $k => $v): ?><option
                         value="<?= h($k) ?>"><?= h(PricingService::categoryLabel($k)) ?></option>
                     <?php endforeach; ?></select></div>
             <div class="col-md-3"><label class="form-label"><?= h(t('pricing.discount_group')) ?></label><select
-                    class="form-select" name="discount_group"><?php foreach ($groups as $k => $v): ?><option
+                    class="form-select" name="discount_group" id="tariffGroup"><?php foreach ($groups as $k => $v): ?><option
                         value="<?= h($k) ?>"><?= h(PricingService::groupLabel($k)) ?></option>
                     <?php endforeach; ?></select></div>
             <div class="col-md-2"><label class="form-label"><?= h(t('pricing.unit')) ?></label><input
-                    class="form-control" name="unit_label" value="acte"></div>
+                    class="form-control" name="unit_label" id="tariffUnit" value="acte"></div>
             <div class="col-md-4"><label class="form-label"><?= h(t('pricing.linked_medication')) ?> <span
                         class="text-muted">(<?= h(t('common.optional')) ?>)</span></label><select class="form-select"
-                    name="medication_id">
+                    name="medication_id" id="tariffMedication">
                     <option value="">—</option><?php foreach ($medications as $m): ?><option
                         value="<?= (int)$m['id'] ?>"><?= h($m['name']) ?></option><?php endforeach; ?>
                 </select></div>
-            <div class="col-12"><label class="form-check"><input class="form-check-input" type="checkbox" name="active"
+            <div class="col-12"><label class="form-check"><input class="form-check-input" type="checkbox" name="active" id="tariffActive"
                         checked><span class="form-check-label"><?= h(t('pricing.active_tariff')) ?></span></label></div>
         </div>
         <div class="card-footer text-end"><button class="btn btn-primary"><?= h(t('pricing.add_tariff')) ?></button>
@@ -149,6 +150,7 @@
                     <th class="text-end"><?= h(t('pricing.catalog')) ?></th>
                     <th class="text-end"><?= h(t('pricing.estimated_cost')) ?></th>
                     <th><?= h(t('pricing.state')) ?></th>
+                    <th class="text-end"><?= h(t('common.actions')) ?></th>
                 </tr>
             </thead>
             <tbody><?php foreach ($tariffs as $t): ?><tr>
@@ -164,7 +166,27 @@
                     <td><span
                             class="badge <?= $t['active'] ? 'bg-green-lt' : 'bg-secondary-lt' ?>"><?= $t['active'] ? t('pricing.active') : t('pricing.inactive') ?></span>
                     </td>
+                    <td class="text-end"><div class="btn-list justify-content-end">
+                        <button class="btn btn-sm btn-outline-primary tariff-edit" type="button"
+                            data-id="<?= (int)$t['id'] ?>" data-clinic="<?= (int)$t['clinic_contact_id'] ?>"
+                            data-label="<?= h($t['label']) ?>" data-amount="<?= h(number_format($t['amount_cents'] / 100, 2, '.', '')) ?>"
+                            data-category="<?= h($t['category']) ?>" data-group="<?= h($t['discount_group']) ?>"
+                            data-unit="<?= h($t['unit_label']) ?>" data-medication="<?= (int)($t['medication_id'] ?? 0) ?>"
+                            data-active="<?= (int)$t['active'] ?>"><?= h(t('common.edit')) ?></button>
+                        <form method="post" action="/settings/pricing/tariff/delete" onsubmit="return confirm(<?= h(json_encode(t('pricing.delete_confirm'), JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)) ?>)">
+                            <input type="hidden" name="id" value="<?= (int)$t['id'] ?>"><button class="btn btn-sm btn-outline-danger" type="submit"><?= h(t('common.delete')) ?></button>
+                        </form>
+                    </div></td>
                 </tr><?php endforeach; ?></tbody>
         </table>
     </div>
 </div>
+<script>
+document.querySelectorAll('.tariff-edit').forEach((button) => button.addEventListener('click', () => {
+    const fields = {tariffId:'id',tariffClinic:'clinic',tariffLabel:'label',tariffAmount:'amount',tariffCategory:'category',tariffGroup:'group',tariffUnit:'unit',tariffMedication:'medication'};
+    Object.entries(fields).forEach(([id, key]) => { document.getElementById(id).value = button.dataset[key] || ''; });
+    document.getElementById('tariffActive').checked = button.dataset.active === '1';
+    document.getElementById('tariffForm').scrollIntoView({behavior:'smooth', block:'start'});
+    document.getElementById('tariffLabel').focus({preventScroll:true});
+}));
+</script>
diff --git a/resources/lang/en.php b/resources/lang/en.php
index df5939a..e8add48 100644
--- a/resources/lang/en.php
+++ b/resources/lang/en.php
@@ -126,4 +126,5 @@ return [
  'pricing.adoption_fees_help'=>'Indicative amounts shared by all animals, according to their sterilisation status.','rooms.inactive_help'=>'An unchecked room becomes inactive, while its previous assignments remain in the history. Its internal code never changes.',
  'care.noon'=>'noon','care.afternoon'=>'afternoon','rooms.admission_rules'=>'Optional admission criteria','rooms.care_periods'=>'Rounds scheduled for this room','rooms.period_required'=>'Select at least one care-round period per room.','rooms.animal_not_allowed'=>'This animal does not match the admission criteria of the selected room.',
  'pricing.before_sterilization'=>'Before sterilisation','pricing.after_sterilization'=>'After sterilisation','pricing.free_fee'=>'Open amount','pricing.free'=>'Open','pricing.adoption_fees_help'=>'Indicative amounts by species. Enable “Open amount” when no fixed fee is required.','animal.sterilization_auto_free'=>'The adoption fee for this species remains open after sterilisation.',
+ 'pricing.delete_confirm'=>'Delete this pricing item? Previously recorded expenses will retain their label and amount.','pricing.edit_tariff'=>'Edit pricing item',
 ];
diff --git a/resources/lang/fr.php b/resources/lang/fr.php
index 400f321..1c04dcd 100644
--- a/resources/lang/fr.php
+++ b/resources/lang/fr.php
@@ -126,4 +126,5 @@ return [
  'pricing.adoption_fees_help'=>'Montants indicatifs communs à tous les animaux, selon leur état de stérilisation.','rooms.inactive_help'=>'Une salle décochée devient inactive, mais ses anciennes affectations restent dans l’historique. Son code interne ne change jamais.',
  'care.noon'=>'midi','care.afternoon'=>'après-midi','rooms.admission_rules'=>'Critères d’accueil facultatifs','rooms.care_periods'=>'Tournées prévues dans cette salle','rooms.period_required'=>'Sélectionnez au moins un créneau de tournée par salle.','rooms.animal_not_allowed'=>'Cet animal ne correspond pas aux critères d’accueil de la salle choisie.',
  'pricing.before_sterilization'=>'Avant stérilisation','pricing.after_sterilization'=>'Après stérilisation','pricing.free_fee'=>'Tarif libre','pricing.free'=>'Libre','pricing.adoption_fees_help'=>'Montants indicatifs par espèce. Activez « Tarif libre » lorsqu’aucun montant fixe n’est imposé.','animal.sterilization_auto_free'=>'Le tarif d’adoption de cette espèce reste libre après la stérilisation.',
+ 'pricing.delete_confirm'=>'Supprimer ce tarif ? Les dépenses déjà enregistrées conserveront leur libellé et leur montant.','pricing.edit_tariff'=>'Modifier le tarif',
 ];
diff --git a/tests/run.php b/tests/run.php
index 1fb2c48..33457c5 100644
--- a/tests/run.php
+++ b/tests/run.php
@@ -143,6 +143,17 @@ try {
         $db->exec("UPDATE adoption_fee_rules SET is_free=1 WHERE species_code='chat'");
         $assert(PricingService::adoptionFee('chat', true) === null, 'Le tarif libre n’est pas appliqué');
     });
+    $test('Un tarif vétérinaire peut être supprimé sans effacer la dépense', function () use ($db, $assert): void {
+        $db->exec("INSERT INTO animals(internal_code,name,species,status) VALUES('TEST-TARIF','Tarif Test','chat','refuge')");
+        $animalId = (int) $db->lastInsertId();
+        $db->exec("INSERT INTO clinic_tariffs(clinic_contact_id,label,amount_cents) VALUES(1,'Tarif temporaire',1234)");
+        $tariffId = (int) $db->lastInsertId();
+        $db->prepare("INSERT INTO animal_expenses(animal_id,clinic_contact_id,tariff_id,label,occurred_on,catalog_unit_cents,total_cents) VALUES(?,1,?,'Tarif temporaire','2099-01-01',1234,1234)")->execute([$animalId, $tariffId]);
+        $expenseId = (int) $db->lastInsertId();
+        $assert(PricingService::deleteTariff($tariffId) === 'Tarif temporaire');
+        $expense = $db->query("SELECT tariff_id,label,total_cents FROM animal_expenses WHERE id=$expenseId")->fetch(PDO::FETCH_ASSOC);
+        $assert($expense && $expense['tariff_id'] === null && $expense['label'] === 'Tarif temporaire' && (int) $expense['total_cents'] === 1234);
+    });
     $test('Les identifiants RNA et SIRET sont contrôlés', function () use ($assert): void {
         $assert(Ids::validRna('W123456789'));
         $assert(!Ids::validRna('W1234'));