diff --git a/client/src/components/jobs-detail-rates/jobs-detail-rates.component.jsx b/client/src/components/jobs-detail-rates/jobs-detail-rates.component.jsx
index 8be309066..ac840faf8 100644
--- a/client/src/components/jobs-detail-rates/jobs-detail-rates.component.jsx
+++ b/client/src/components/jobs-detail-rates/jobs-detail-rates.component.jsx
@@ -86,7 +86,7 @@ export function JobsDetailRates({ job, jobRO, form }) {
           <CurrencyInput disabled={jobRO} />
         </Form.Item>
         <Form.Item label={t("jobs.fields.rate_lag")} name="rate_lag">
-          <CurrencyInput />
+          <CurrencyInput disabled={jobRO} />
         </Form.Item>
         <Form.Item label={t("jobs.fields.rate_la1")} name="rate_la1">
           <CurrencyInput disabled={jobRO} />
diff --git a/client/src/pages/jobs-detail/jobs-detail.page.container.jsx b/client/src/pages/jobs-detail/jobs-detail.page.container.jsx
index a66687a09..7e9e0545f 100644
--- a/client/src/pages/jobs-detail/jobs-detail.page.container.jsx
+++ b/client/src/pages/jobs-detail/jobs-detail.page.container.jsx
@@ -63,7 +63,9 @@ function JobsDetailPageContainer({
     ]);
 
     if (data && data.jobs_by_pk) {
-      setJobReadOnly(!!data.jobs_by_pk.date_exported);
+      setJobReadOnly(
+        !!data.jobs_by_pk.date_exported || !!data.jobs_by_pk.date_invoiced
+      );
 
       addRecentItem(
         CreateRecentItem(