diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41c83e7..497c972 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [1.6.0-beta.8] - 2026-05-24
+
+Recovery service for the beta.7 cost-math fix. The beta.7 AEMO RRP-parser fix corrected the rate going forward, but the DWT provider's `_import_cost_today_c` accumulator carried the inflated value built up under the bug (the user's screenshot still showed `current_plan_cost_today=$66.78` on a real spend < $2). Adds a manual reset so users don't have to wait until midnight rollover.
+
+### Added
+
+- **`pricehawk.reset_today` service.** Zeros every registered provider's daily accumulators (`import_kwh_today`, `import_cost_today_c`, `export_kwh_today`, `export_earnings_today_c`) on every PriceHawk entry and persists the cleared state to the JSON Store. Use after any cost-math fix lands mid-day. Takes no parameters; resets all entries. Replaces the prior "wait until midnight" workaround. (`__init__.py:264-294`, `services.yaml`)
+
 ## [1.6.0-beta.7] - 2026-05-24
 
 🔴 **Critical cost-math bug fix.** AEMO dispatch parser was reading the wrong CSV row type — surfaced by live UAT 2026-05-24 when the user noticed today_cost claiming ~$66 on real consumption of ~12 kWh.
diff --git a/custom_components/pricehawk/__init__.py b/custom_components/pricehawk/__init__.py
index 262e913..6cdd125 100644
--- a/custom_components/pricehawk/__init__.py
+++ b/custom_components/pricehawk/__init__.py
@@ -261,11 +261,44 @@ async def handle_rank_alternatives(call: object) -> None:
             len(result),
         )
 
+    async def handle_reset_today(call: object) -> None:
+        """Zero every registered provider's daily accumulators NOW.
+
+        Use case: after a code-level cost-math bugfix lands mid-day, the
+        DWT provider's ``_import_cost_today_c`` still carries inflated
+        values accumulated under the prior bug. Without this service the
+        user has to wait until the midnight rollover to see clean data.
+        Live UAT 2026-05-24 — added after the AEMO RRP-row-type fix
+        (beta.7) left ``current_plan_cost_today=$66.78`` stuck on a real
+        spend of <$2.
+        """
+        del call  # Service takes no parameters; resets every entry.
+        for entry in hass.config_entries.async_entries(DOMAIN):
+            data: PriceHawkData | None = getattr(entry, "runtime_data", None)
+            if data is None:
+                continue
+            coord = data.coordinator
+            for provider in coord._providers.values():
+                try:
+                    provider.reset_daily()
+                except Exception as exc:  # noqa: BLE001 — never sink the batch
+                    _LOGGER.warning(
+                        "reset_today: %s.reset_daily failed: %s",
+                        getattr(provider, "id", "?"), exc,
+                    )
+            await coord.async_persist_state()
+            _LOGGER.info(
+                "reset_today: zeroed daily accumulators for %d provider(s) "
+                "on entry %s",
+                len(coord._providers), entry.entry_id,
+            )
+
     hass.services.async_register(DOMAIN, "analyze_csv", handle_analyze_csv)
     hass.services.async_register(DOMAIN, "backfill_history", handle_backfill)
     hass.services.async_register(
         DOMAIN, "rank_alternatives", handle_rank_alternatives
     )
+    hass.services.async_register(DOMAIN, "reset_today", handle_reset_today)
 
 
 async def async_unload_entry(hass: HomeAssistant, entry: PriceHawkConfigEntry) -> bool:
diff --git a/custom_components/pricehawk/manifest.json b/custom_components/pricehawk/manifest.json
index e68c6b0..ac422a3 100644
--- a/custom_components/pricehawk/manifest.json
+++ b/custom_components/pricehawk/manifest.json
@@ -11,5 +11,5 @@
   "issue_tracker": "https://github.com/Artic0din/ha-pricehawk/issues",
   "quality_scale": "silver",
   "requirements": ["openelectricity>=0.10.1,<0.11"],
-  "version": "1.6.0-beta.7"
+  "version": "1.6.0-beta.8"
 }
diff --git a/custom_components/pricehawk/services.yaml b/custom_components/pricehawk/services.yaml
index 3e0cadd..49b9f12 100644
--- a/custom_components/pricehawk/services.yaml
+++ b/custom_components/pricehawk/services.yaml
@@ -34,6 +34,14 @@ backfill_history:
           max: 90
           mode: slider
 
+reset_today:
+  name: Reset Today's Cost
+  description: >-
+    Zero every provider's daily accumulators (import_kwh_today,
+    import_cost_today_c, export_*_today, etc.) on every PriceHawk entry,
+    then persist state. Use after a code-level cost fix lands mid-day to
+    clear residual values without waiting for midnight rollover.
+
 rank_alternatives:
   name: Rank Alternative Plans
   description: >-
diff --git a/tests/test_silver_checklist.py b/tests/test_silver_checklist.py
index 80e150f..f388330 100644
--- a/tests/test_silver_checklist.py
+++ b/tests/test_silver_checklist.py
@@ -92,8 +92,8 @@ def test_version_bumped(self):
         # Track the in-flight beta line. Bump this assertion when cutting
         # a new HACS-beta release. Hard-coded so a stray manifest edit
         # can't silently break HACS version pinning.
-        assert m["version"] == "1.6.0-beta.7", (
-            f"manifest version should be 1.6.0-beta.7, got {m['version']}"
+        assert m["version"] == "1.6.0-beta.8", (
+            f"manifest version should be 1.6.0-beta.8, got {m['version']}"
         )
 
     def test_codeowner_present(self):