diff --git a/CHANGELOG.md b/CHANGELOG.md
index 59dc138..761fc5b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,17 @@ at least 14 days before changes take effect.
 
 ---
 
+## v1.3.0 — 2026-04-24
+
+**Standard Terms:**
+
+- New clause in Compensation: the Company must process payment within 30
+  calendar days of approving a valid invoice, across all Engagement Modes.
+  This obligation does not apply if the delay is caused by the Contractor
+  failing to submit a compliant invoice or provide required payment information.
+
+---
+
 ## v1.2.0 — 2026-04-14
 
 **Standard Terms:**
diff --git a/STANDARD_TERMS.md b/STANDARD_TERMS.md
index 08b4fb6..3db038b 100644
--- a/STANDARD_TERMS.md
+++ b/STANDARD_TERMS.md
@@ -126,9 +126,19 @@
    deliverables or milestone, for Project and Milestone engagements. The Company
    is not obligated to process or pay any invoice submitted after this deadline.
    Late invoices may be accepted at the Company's sole discretion.
-6. **Taxes.** The Contractor handles all their own taxes, withholdings,
+6. **Valid Invoice.** An invoice is considered valid only if it includes all
+   of the following: invoice number, issue date, contractor legal name,
+   itemized description of services rendered, total amount due, and payment
+   details (bank account or wallet address). The 30-day payment clock does
+   not start until a valid invoice has been received.
+7. **Payment Deadline.** The Company will process payment within 30 calendar
+   days of receiving a valid invoice. This deadline applies to all Engagement
+   Modes. The Company is not in breach of this obligation if a delay is caused
+   by the Contractor's failure to submit a compliant invoice or provide
+   information reasonably required to process payment.
+8. **Taxes.** The Contractor handles all their own taxes, withholdings,
    and benefits. The Company makes no deductions.
-7. **Finality of Payment.** Any payment made by the Company for approved hours,
+9. **Finality of Payment.** Any payment made by the Company for approved hours,
    completed projects, or accepted milestones constitutes full and final settlement
    of all claims relating to the Services covered by that payment. The Contractor
    waives any right to dispute or make further claims in respect of that payment