diff --git a/apps/web/process/bonuses/validation.ts b/apps/web/process/bonuses/validation.ts
index 564b9fc..5ffbf8a 100644
--- a/apps/web/process/bonuses/validation.ts
+++ b/apps/web/process/bonuses/validation.ts
@@ -10,8 +10,17 @@ export function createValidationSchema(context: ValidationContext) {
   return ValuesSchema.pick({ product: true, saleBonus: true }).superRefine(
     async ({ product, saleBonus }, ctx) => {
       const coefficient = await getCoefficient(product);
+      const minBonus = (coefficient?.evo_correction_coefficient || 0) * 100;
       const maxBonus = (coefficient?.evo_sot_coefficient || 0) * 100;
 
+      if (round(saleBonus, 2) < round(minBonus, 2)) {
+        ctx.addIssue({
+          code: z.ZodIssueCode.custom,
+          message: 'Бонус не может быть ниже установленного по СОТ',
+          path: ['tbxSaleBonus'],
+        });
+      }
+
       if (round(saleBonus, 2) > round(maxBonus, 2)) {
         ctx.addIssue({
           code: z.ZodIssueCode.custom,