diff --git a/corporate/lib/stripe.py b/corporate/lib/stripe.py
index a93cc14740..e9fc4f3bd1 100644
--- a/corporate/lib/stripe.py
+++ b/corporate/lib/stripe.py
@@ -636,3 +636,17 @@ def downgrade_now_without_creating_additional_invoices(realm: Realm) -> None:
     plan.invoiced_through = LicenseLedger.objects.filter(plan=plan).order_by('id').last()
     plan.next_invoice_date = next_invoice_date(plan)
     plan.save(update_fields=["invoiced_through", "next_invoice_date"])
+
+def void_all_open_invoices(realm: Realm) -> int:
+    customer = get_customer_by_realm(realm)
+    if customer is None:
+        return 0
+    invoices = stripe.Invoice.list(customer=customer.stripe_customer_id)
+    voided_invoices_count = 0
+    for invoice in invoices:
+        if invoice.status == "open":
+            stripe.Invoice.void_invoice(
+                invoice.id
+            )
+            voided_invoices_count += 1
+    return voided_invoices_count
diff --git a/corporate/tests/stripe_fixtures/void_all_open_invoices--Customer.create.1.json b/corporate/tests/stripe_fixtures/void_all_open_invoices--Customer.create.1.json
new file mode 100644
index 0000000000..611715f7d6
--- /dev/null
+++ b/corporate/tests/stripe_fixtures/void_all_open_invoices--Customer.create.1.json
@@ -0,0 +1,54 @@
+{
+  "account_balance": 0,
+  "address": null,
+  "balance": 0,
+  "created": 1000000000,
+  "currency": null,
+  "default_source": null,
+  "delinquent": false,
+  "description": "zulip (Zulip Dev)",
+  "discount": null,
+  "email": "iago@zulip.com",
+  "id": "cus_NORMALIZED0001",
+  "invoice_prefix": "NORMA01",
+  "invoice_settings": {
+    "custom_fields": null,
+    "default_payment_method": null,
+    "footer": null
+  },
+  "livemode": false,
+  "metadata": {
+    "realm_id": "1",
+    "realm_str": "zulip"
+  },
+  "name": null,
+  "next_invoice_sequence": 1,
+  "object": "customer",
+  "phone": null,
+  "preferred_locales": [],
+  "shipping": null,
+  "sources": {
+    "data": [],
+    "has_more": false,
+    "object": "list",
+    "total_count": 0,
+    "url": "/v1/customers/cus_NORMALIZED0001/sources"
+  },
+  "subscriptions": {
+    "data": [],
+    "has_more": false,
+    "object": "list",
+    "total_count": 0,
+    "url": "/v1/customers/cus_NORMALIZED0001/subscriptions"
+  },
+  "tax_exempt": "none",
+  "tax_ids": {
+    "data": [],
+    "has_more": false,
+    "object": "list",
+    "total_count": 0,
+    "url": "/v1/customers/cus_NORMALIZED0001/tax_ids"
+  },
+  "tax_info": null,
+  "tax_info_verification": null
+}
diff --git a/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.create.1.json b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.create.1.json
new file mode 100644
index 0000000000..9f107b7be5
--- /dev/null
+++ b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.create.1.json
@@ -0,0 +1,122 @@
+{
+  "account_country": "US",
+  "account_name": null,
+  "amount_due": 6400,
+  "amount_paid": 0,
+  "amount_remaining": 6400,
+  "application_fee": null,
+  "attempt_count": 0,
+  "attempted": false,
+  "auto_advance": true,
+  "billing": "send_invoice",
+  "billing_reason": "manual",
+  "charge": null,
+  "collection_method": "send_invoice",
+  "created": 1000000000,
+  "currency": "usd",
+  "custom_fields": null,
+  "customer": "cus_NORMALIZED0001",
+  "customer_address": null,
+  "customer_email": "iago@zulip.com",
+  "customer_name": null,
+  "customer_phone": null,
+  "customer_shipping": null,
+  "customer_tax_exempt": "none",
+  "customer_tax_ids": [],
+  "date": 1000000000,
+  "default_payment_method": null,
+  "default_source": null,
+  "default_tax_rates": [],
+  "description": null,
+  "discount": null,
+  "discounts": [],
+  "due_date": 1000000000,
+  "ending_balance": null,
+  "finalized_at": null,
+  "footer": null,
+  "hosted_invoice_url": null,
+  "id": "in_NORMALIZED00000000000001",
+  "invoice_pdf": null,
+  "lines": {
+    "data": [
+      {
+        "amount": 6400,
+        "currency": "usd",
+        "description": "Zulip standard upgrade",
+        "discount_amounts": [],
+        "discountable": false,
+        "discounts": [],
+        "id": "ii_NORMALIZED00000000000001",
+        "invoice_item": "ii_NORMALIZED00000000000001",
+        "livemode": false,
+        "metadata": {},
+        "object": "line_item",
+        "period": {
+          "end": 1000000000,
+          "start": 1000000000
+        },
+        "plan": null,
+        "price": {
+          "active": false,
+          "billing_scheme": "per_unit",
+          "created": 1000000000,
+          "currency": "usd",
+          "id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
+          "livemode": false,
+          "lookup_key": null,
+          "metadata": {},
+          "nickname": null,
+          "object": "price",
+          "product": "prod_HpNH3ZK9Bpc89P",
+          "recurring": null,
+          "tiers_mode": null,
+          "transform_quantity": null,
+          "type": "one_time",
+          "unit_amount": 800,
+          "unit_amount_decimal": "800"
+        },
+        "proration": false,
+        "quantity": 8,
+        "subscription": null,
+        "tax_amounts": [],
+        "tax_rates": [],
+        "type": "invoiceitem",
+        "unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
+      }
+    ],
+    "has_more": false,
+    "object": "list",
+    "total_count": 1,
+    "url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
+  },
+  "livemode": false,
+  "metadata": {},
+  "next_payment_attempt": null,
+  "number": "NORMALI-0001",
+  "object": "invoice",
+  "paid": false,
+  "payment_intent": null,
+  "period_end": 1000000000,
+  "period_start": 1000000000,
+  "post_payment_credit_notes_amount": 0,
+  "pre_payment_credit_notes_amount": 0,
+  "receipt_number": null,
+  "starting_balance": 0,
+  "statement_descriptor": "Zulip Standard",
+  "status": "draft",
+  "status_transitions": {
+    "finalized_at": null,
+    "marked_uncollectible_at": null,
+    "paid_at": null,
+    "voided_at": null
+  },
+  "subscription": null,
+  "subtotal": 6400,
+  "tax": null,
+  "tax_percent": null,
+  "total": 6400,
+  "total_discount_amounts": [],
+  "total_tax_amounts": [],
+  "transfer_data": null,
+  "webhooks_delivered_at": 1000000000
+}
diff --git a/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.finalize_invoice.1.json b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.finalize_invoice.1.json
new file mode 100644
index 0000000000..475bef780b
--- /dev/null
+++ b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.finalize_invoice.1.json
@@ -0,0 +1,122 @@
+{
+  "account_country": "US",
+  "account_name": null,
+  "amount_due": 6400,
+  "amount_paid": 0,
+  "amount_remaining": 6400,
+  "application_fee": null,
+  "attempt_count": 0,
+  "attempted": false,
+  "auto_advance": true,
+  "billing": "send_invoice",
+  "billing_reason": "manual",
+  "charge": null,
+  "collection_method": "send_invoice",
+  "created": 1000000000,
+  "currency": "usd",
+  "custom_fields": null,
+  "customer": "cus_NORMALIZED0001",
+  "customer_address": null,
+  "customer_email": "iago@zulip.com",
+  "customer_name": null,
+  "customer_phone": null,
+  "customer_shipping": null,
+  "customer_tax_exempt": "none",
+  "customer_tax_ids": [],
+  "date": 1000000000,
+  "default_payment_method": null,
+  "default_source": null,
+  "default_tax_rates": [],
+  "description": null,
+  "discount": null,
+  "discounts": [],
+  "due_date": 1000000000,
+  "ending_balance": 0,
+  "finalized_at": 1000000000,
+  "footer": null,
+  "hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
+  "id": "in_NORMALIZED00000000000001",
+  "invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
+  "lines": {
+    "data": [
+      {
+        "amount": 6400,
+        "currency": "usd",
+        "description": "Zulip standard upgrade",
+        "discount_amounts": [],
+        "discountable": false,
+        "discounts": [],
+        "id": "ii_NORMALIZED00000000000001",
+        "invoice_item": "ii_NORMALIZED00000000000001",
+        "livemode": false,
+        "metadata": {},
+        "object": "line_item",
+        "period": {
+          "end": 1000000000,
+          "start": 1000000000
+        },
+        "plan": null,
+        "price": {
+          "active": false,
+          "billing_scheme": "per_unit",
+          "created": 1000000000,
+          "currency": "usd",
+          "id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
+          "livemode": false,
+          "lookup_key": null,
+          "metadata": {},
+          "nickname": null,
+          "object": "price",
+          "product": "prod_HpNH3ZK9Bpc89P",
+          "recurring": null,
+          "tiers_mode": null,
+          "transform_quantity": null,
+          "type": "one_time",
+          "unit_amount": 800,
+          "unit_amount_decimal": "800"
+        },
+        "proration": false,
+        "quantity": 8,
+        "subscription": null,
+        "tax_amounts": [],
+        "tax_rates": [],
+        "type": "invoiceitem",
+        "unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
+      }
+    ],
+    "has_more": false,
+    "object": "list",
+    "total_count": 1,
+    "url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
+  },
+  "livemode": false,
+  "metadata": {},
+  "next_payment_attempt": null,
+  "number": "NORMALI-0001",
+  "object": "invoice",
+  "paid": false,
+  "payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
+  "period_end": 1000000000,
+  "period_start": 1000000000,
+  "post_payment_credit_notes_amount": 0,
+  "pre_payment_credit_notes_amount": 0,
+  "receipt_number": null,
+  "starting_balance": 0,
+  "statement_descriptor": "Zulip Standard",
+  "status": "open",
+  "status_transitions": {
+    "finalized_at": 1000000000,
+    "marked_uncollectible_at": null,
+    "paid_at": null,
+    "voided_at": null
+  },
+  "subscription": null,
+  "subtotal": 6400,
+  "tax": null,
+  "tax_percent": null,
+  "total": 6400,
+  "total_discount_amounts": [],
+  "total_tax_amounts": [],
+  "transfer_data": null,
+  "webhooks_delivered_at": 1000000000
+}
diff --git a/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.1.json b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.1.json
new file mode 100644
index 0000000000..3ea16e20d1
--- /dev/null
+++ b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.1.json
@@ -0,0 +1,129 @@
+{
+  "data": [
+    {
+      "account_country": "US",
+      "account_name": null,
+      "amount_due": 6400,
+      "amount_paid": 0,
+      "amount_remaining": 6400,
+      "application_fee": null,
+      "attempt_count": 0,
+      "attempted": false,
+      "auto_advance": true,
+      "billing": "send_invoice",
+      "billing_reason": "manual",
+      "charge": null,
+      "collection_method": "send_invoice",
+      "created": 1000000000,
+      "currency": "usd",
+      "custom_fields": null,
+      "customer": "cus_NORMALIZED0001",
+      "customer_address": null,
+      "customer_email": "iago@zulip.com",
+      "customer_name": null,
+      "customer_phone": null,
+      "customer_shipping": null,
+      "customer_tax_exempt": "none",
+      "customer_tax_ids": [],
+      "date": 1000000000,
+      "default_payment_method": null,
+      "default_source": null,
+      "default_tax_rates": [],
+      "description": null,
+      "discount": null,
+      "discounts": [],
+      "due_date": 1000000000,
+      "ending_balance": 0,
+      "finalized_at": 1000000000,
+      "footer": null,
+      "hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
+      "id": "in_NORMALIZED00000000000001",
+      "invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
+      "lines": {
+        "data": [
+          {
+            "amount": 6400,
+            "currency": "usd",
+            "description": "Zulip standard upgrade",
+            "discount_amounts": [],
+            "discountable": false,
+            "discounts": [],
+            "id": "ii_NORMALIZED00000000000001",
+            "invoice_item": "ii_NORMALIZED00000000000001",
+            "livemode": false,
+            "metadata": {},
+            "object": "line_item",
+            "period": {
+              "end": 1000000000,
+              "start": 1000000000
+            },
+            "plan": null,
+            "price": {
+              "active": false,
+              "billing_scheme": "per_unit",
+              "created": 1000000000,
+              "currency": "usd",
+              "id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
+              "livemode": false,
+              "lookup_key": null,
+              "metadata": {},
+              "nickname": null,
+              "object": "price",
+              "product": "prod_HpNH3ZK9Bpc89P",
+              "recurring": null,
+              "tiers_mode": null,
+              "transform_quantity": null,
+              "type": "one_time",
+              "unit_amount": 800,
+              "unit_amount_decimal": "800"
+            },
+            "proration": false,
+            "quantity": 8,
+            "subscription": null,
+            "tax_amounts": [],
+            "tax_rates": [],
+            "type": "invoiceitem",
+            "unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
+          }
+        ],
+        "has_more": false,
+        "object": "list",
+        "total_count": 1,
+        "url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
+      },
+      "livemode": false,
+      "metadata": {},
+      "next_payment_attempt": null,
+      "number": "NORMALI-0001",
+      "object": "invoice",
+      "paid": false,
+      "payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
+      "period_end": 1000000000,
+      "period_start": 1000000000,
+      "post_payment_credit_notes_amount": 0,
+      "pre_payment_credit_notes_amount": 0,
+      "receipt_number": null,
+      "starting_balance": 0,
+      "statement_descriptor": "Zulip Standard",
+      "status": "open",
+      "status_transitions": {
+        "finalized_at": 1000000000,
+        "marked_uncollectible_at": null,
+        "paid_at": null,
+        "voided_at": null
+      },
+      "subscription": null,
+      "subtotal": 6400,
+      "tax": null,
+      "tax_percent": null,
+      "total": 6400,
+      "total_discount_amounts": [],
+      "total_tax_amounts": [],
+      "transfer_data": null,
+      "webhooks_delivered_at": 1000000000
+    }
+  ],
+  "has_more": false,
+  "object": "list",
+  "url": "/v1/invoices"
+}
diff --git a/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.2.json b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.2.json
new file mode 100644
index 0000000000..01d93a468b
--- /dev/null
+++ b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.list.2.json
@@ -0,0 +1,129 @@
+{
+  "data": [
+    {
+      "account_country": "US",
+      "account_name": null,
+      "amount_due": 6400,
+      "amount_paid": 0,
+      "amount_remaining": 6400,
+      "application_fee": null,
+      "attempt_count": 0,
+      "attempted": false,
+      "auto_advance": false,
+      "billing": "send_invoice",
+      "billing_reason": "manual",
+      "charge": null,
+      "collection_method": "send_invoice",
+      "created": 1000000000,
+      "currency": "usd",
+      "custom_fields": null,
+      "customer": "cus_NORMALIZED0001",
+      "customer_address": null,
+      "customer_email": "iago@zulip.com",
+      "customer_name": null,
+      "customer_phone": null,
+      "customer_shipping": null,
+      "customer_tax_exempt": "none",
+      "customer_tax_ids": [],
+      "date": 1000000000,
+      "default_payment_method": null,
+      "default_source": null,
+      "default_tax_rates": [],
+      "description": null,
+      "discount": null,
+      "discounts": [],
+      "due_date": 1000000000,
+      "ending_balance": 0,
+      "finalized_at": 1000000000,
+      "footer": null,
+      "hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
+      "id": "in_NORMALIZED00000000000001",
+      "invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
+      "lines": {
+        "data": [
+          {
+            "amount": 6400,
+            "currency": "usd",
+            "description": "Zulip standard upgrade",
+            "discount_amounts": [],
+            "discountable": false,
+            "discounts": [],
+            "id": "ii_NORMALIZED00000000000001",
+            "invoice_item": "ii_NORMALIZED00000000000001",
+            "livemode": false,
+            "metadata": {},
+            "object": "line_item",
+            "period": {
+              "end": 1000000000,
+              "start": 1000000000
+            },
+            "plan": null,
+            "price": {
+              "active": false,
+              "billing_scheme": "per_unit",
+              "created": 1000000000,
+              "currency": "usd",
+              "id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
+              "livemode": false,
+              "lookup_key": null,
+              "metadata": {},
+              "nickname": null,
+              "object": "price",
+              "product": "prod_HpNH3ZK9Bpc89P",
+              "recurring": null,
+              "tiers_mode": null,
+              "transform_quantity": null,
+              "type": "one_time",
+              "unit_amount": 800,
+              "unit_amount_decimal": "800"
+            },
+            "proration": false,
+            "quantity": 8,
+            "subscription": null,
+            "tax_amounts": [],
+            "tax_rates": [],
+            "type": "invoiceitem",
+            "unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
+          }
+        ],
+        "has_more": false,
+        "object": "list",
+        "total_count": 1,
+        "url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
+      },
+      "livemode": false,
+      "metadata": {},
+      "next_payment_attempt": null,
+      "number": "NORMALI-0001",
+      "object": "invoice",
+      "paid": false,
+      "payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
+      "period_end": 1000000000,
+      "period_start": 1000000000,
+      "post_payment_credit_notes_amount": 0,
+      "pre_payment_credit_notes_amount": 0,
+      "receipt_number": null,
+      "starting_balance": 0,
+      "statement_descriptor": "Zulip Standard",
+      "status": "void",
+      "status_transitions": {
+        "finalized_at": 1000000000,
+        "marked_uncollectible_at": null,
+        "paid_at": null,
+        "voided_at": 1000000000
+      },
+      "subscription": null,
+      "subtotal": 6400,
+      "tax": null,
+      "tax_percent": null,
+      "total": 6400,
+      "total_discount_amounts": [],
+      "total_tax_amounts": [],
+      "transfer_data": null,
+      "webhooks_delivered_at": 1000000000
+    }
+  ],
+  "has_more": false,
+  "object": "list",
+  "url": "/v1/invoices"
+}
diff --git a/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.void_invoice.1.json b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.void_invoice.1.json
new file mode 100644
index 0000000000..39f3ca9acf
--- /dev/null
+++ b/corporate/tests/stripe_fixtures/void_all_open_invoices--Invoice.void_invoice.1.json
@@ -0,0 +1,122 @@
+{
+  "account_country": "US",
+  "account_name": null,
+  "amount_due": 6400,
+  "amount_paid": 0,
+  "amount_remaining": 6400,
+  "application_fee": null,
+  "attempt_count": 0,
+  "attempted": false,
+  "auto_advance": false,
+  "billing": "send_invoice",
+  "billing_reason": "manual",
+  "charge": null,
+  "collection_method": "send_invoice",
+  "created": 1000000000,
+  "currency": "usd",
+  "custom_fields": null,
+  "customer": "cus_NORMALIZED0001",
+  "customer_address": null,
+  "customer_email": "iago@zulip.com",
+  "customer_name": null,
+  "customer_phone": null,
+  "customer_shipping": null,
+  "customer_tax_exempt": "none",
+  "customer_tax_ids": [],
+  "date": 1000000000,
+  "default_payment_method": null,
+  "default_source": null,
+  "default_tax_rates": [],
+  "description": null,
+  "discount": null,
+  "discounts": [],
+  "due_date": 1000000000,
+  "ending_balance": 0,
+  "finalized_at": 1000000000,
+  "footer": null,
+  "hosted_invoice_url": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS",
+  "id": "in_NORMALIZED00000000000001",
+  "invoice_pdf": "https://pay.stripe.com/invoice/acct_NORMALIZED000001/invst_NORMALIZED0000000000000001CU7gS/pdf",
+  "lines": {
+    "data": [
+      {
+        "amount": 6400,
+        "currency": "usd",
+        "description": "Zulip standard upgrade",
+        "discount_amounts": [],
+        "discountable": false,
+        "discounts": [],
+        "id": "ii_NORMALIZED00000000000001",
+        "invoice_item": "ii_NORMALIZED00000000000001",
+        "livemode": false,
+        "metadata": {},
+        "object": "line_item",
+        "period": {
+          "end": 1000000000,
+          "start": 1000000000
+        },
+        "plan": null,
+        "price": {
+          "active": false,
+          "billing_scheme": "per_unit",
+          "created": 1000000000,
+          "currency": "usd",
+          "id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
+          "livemode": false,
+          "lookup_key": null,
+          "metadata": {},
+          "nickname": null,
+          "object": "price",
+          "product": "prod_HpNH3ZK9Bpc89P",
+          "recurring": null,
+          "tiers_mode": null,
+          "transform_quantity": null,
+          "type": "one_time",
+          "unit_amount": 800,
+          "unit_amount_decimal": "800"
+        },
+        "proration": false,
+        "quantity": 8,
+        "subscription": null,
+        "tax_amounts": [],
+        "tax_rates": [],
+        "type": "invoiceitem",
+        "unique_id": "il_1HFiX7D2X8vgpBNGYzYwN35m"
+      }
+    ],
+    "has_more": false,
+    "object": "list",
+    "total_count": 1,
+    "url": "/v1/invoices/in_NORMALIZED00000000000001/lines"
+  },
+  "livemode": false,
+  "metadata": {},
+  "next_payment_attempt": null,
+  "number": "NORMALI-0001",
+  "object": "invoice",
+  "paid": false,
+  "payment_intent": "pi_1HFiX8D2X8vgpBNGGjAHPbBr",
+  "period_end": 1000000000,
+  "period_start": 1000000000,
+  "post_payment_credit_notes_amount": 0,
+  "pre_payment_credit_notes_amount": 0,
+  "receipt_number": null,
+  "starting_balance": 0,
+  "statement_descriptor": "Zulip Standard",
+  "status": "void",
+  "status_transitions": {
+    "finalized_at": 1000000000,
+    "marked_uncollectible_at": null,
+    "paid_at": null,
+    "voided_at": 1000000000
+  },
+  "subscription": null,
+  "subtotal": 6400,
+  "tax": null,
+  "tax_percent": null,
+  "total": 6400,
+  "total_discount_amounts": [],
+  "total_tax_amounts": [],
+  "transfer_data": null,
+  "webhooks_delivered_at": 1000000000
+}
diff --git a/corporate/tests/stripe_fixtures/void_all_open_invoices--InvoiceItem.create.1.json b/corporate/tests/stripe_fixtures/void_all_open_invoices--InvoiceItem.create.1.json
new file mode 100644
index 0000000000..3a4c338d1c
--- /dev/null
+++ b/corporate/tests/stripe_fixtures/void_all_open_invoices--InvoiceItem.create.1.json
@@ -0,0 +1,44 @@
+{
+  "amount": 6400,
+  "currency": "usd",
+  "customer": "cus_NORMALIZED0001",
+  "date": 1000000000,
+  "description": "Zulip standard upgrade",
+  "discountable": false,
+  "discounts": [],
+  "id": "ii_NORMALIZED00000000000001",
+  "invoice": null,
+  "livemode": false,
+  "metadata": {},
+  "object": "invoiceitem",
+  "period": {
+    "end": 1000000000,
+    "start": 1000000000
+  },
+  "plan": null,
+  "price": {
+    "active": false,
+    "billing_scheme": "per_unit",
+    "created": 1000000000,
+    "currency": "usd",
+    "id": "price_1HFiX7D2X8vgpBNGZKqyye0n",
+    "livemode": false,
+    "lookup_key": null,
+    "metadata": {},
+    "nickname": null,
+    "object": "price",
+    "product": "prod_HpNH3ZK9Bpc89P",
+    "recurring": null,
+    "tiers_mode": null,
+    "transform_quantity": null,
+    "type": "one_time",
+    "unit_amount": 800,
+    "unit_amount_decimal": "800"
+  },
+  "proration": false,
+  "quantity": 8,
+  "subscription": null,
+  "tax_rates": [],
+  "unit_amount": 800,
+  "unit_amount_decimal": "800"
+}
diff --git a/corporate/tests/test_stripe.py b/corporate/tests/test_stripe.py
index 37ff6ba1ee..8ac77be47c 100644
--- a/corporate/tests/test_stripe.py
+++ b/corporate/tests/test_stripe.py
@@ -40,6 +40,7 @@ from corporate.lib.stripe import (
     update_license_ledger_for_automanaged_plan,
     update_license_ledger_if_needed,
     update_or_create_stripe_customer,
+    void_all_open_invoices,
 )
 from corporate.models import (
     Customer,
@@ -201,7 +202,7 @@ MOCKED_STRIPE_FUNCTION_NAMES = [f"stripe.{name}" for name in [
     "Charge.create", "Charge.list",
     "Coupon.create",
     "Customer.create", "Customer.retrieve", "Customer.save",
-    "Invoice.create", "Invoice.finalize_invoice", "Invoice.list", "Invoice.pay", "Invoice.upcoming",
+    "Invoice.create", "Invoice.finalize_invoice", "Invoice.list", "Invoice.pay", "Invoice.upcoming", "Invoice.void_invoice",
     "InvoiceItem.create", "InvoiceItem.list",
     "Plan.create",
     "Product.create",
@@ -1816,6 +1817,35 @@ class StripeTest(StripeTestCase):
         self.assertEqual(old_plan.next_invoice_date, None)
         self.assertEqual(old_plan.status, CustomerPlan.ENDED)
 
+    @mock_stripe()
+    def test_void_all_open_invoices(self, *mock: Mock) -> None:
+        iago = self.example_user("iago")
+        self.assertEqual(void_all_open_invoices(iago.realm), 0)
+        customer = update_or_create_stripe_customer(iago)
+
+        stripe.InvoiceItem.create(
+            currency='usd',
+            customer=customer.stripe_customer_id,
+            description="Zulip standard upgrade",
+            discountable=False,
+            unit_amount=800,
+            quantity=8
+        )
+        stripe_invoice = stripe.Invoice.create(
+            auto_advance=True,
+            billing="send_invoice",
+            customer=customer.stripe_customer_id,
+            days_until_due=30,
+            statement_descriptor='Zulip Standard'
+        )
+        stripe.Invoice.finalize_invoice(stripe_invoice)
+
+        self.assertEqual(void_all_open_invoices(iago.realm), 1)
+        invoices = stripe.Invoice.list(customer=customer.stripe_customer_id)
+        self.assertEqual(len(invoices), 1)
+        for invoice in invoices:
+            self.assertEqual(invoice.status, "void")
+
 class RequiresBillingAccessTest(ZulipTestCase):
     def setUp(self) -> None:
         super().setUp()
diff --git a/stubs/stripe/__init__.pyi b/stubs/stripe/__init__.pyi
index e978874250..61ca1aa4df 100644
--- a/stubs/stripe/__init__.pyi
+++ b/stubs/stripe/__init__.pyi
@@ -47,6 +47,7 @@ class Customer:
 
 
 class Invoice:
+    id: str
     auto_advance: bool
     amount_due: int
     billing: str
@@ -81,6 +82,10 @@ class Invoice:
     def pay(invoice: Invoice) -> Invoice:
         ...
 
+    @staticmethod
+    def void_invoice(id: str) -> None:
+        ...
+
     def get(self, key: str) -> Any:
         ...