diff --git a/changelog.d/remove-stray-test-notebook.changed.md b/changelog.d/remove-stray-test-notebook.changed.md
new file mode 100644
index 00000000..b12ddc0e
--- /dev/null
+++ b/changelog.d/remove-stray-test-notebook.changed.md
@@ -0,0 +1 @@
+Removed a stray scratch notebook (test.ipynb) that was accidentally committed to the repository root.
diff --git a/test.ipynb b/test.ipynb
deleted file mode 100644
index 310c0da9..00000000
--- a/test.ipynb
+++ /dev/null
@@ -1,502 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": 1,
-   "metadata": {},
-   "outputs": [],
-   "source": [
-    "from policyengine_uk import Microsimulation\n",
-    "from policyengine_core.reforms import Reform\n",
-    "\n",
-    "reform = Reform.from_dict(\n",
-    "    {\"gov.hmrc.vat.standard_rate\": {\"2024-01-01.2100-12-31\": 0.22}},\n",
-    "    country_id=\"uk\",\n",
-    ")\n",
-    "\n",
-    "\n",
-    "baseline = Microsimulation()\n",
-    "reformed = Microsimulation(reform=reform)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 6,
-   "metadata": {},
-   "outputs": [
-    {
-     "data": {
-      "text/html": [
-       "<div>\n",
-       "<style scoped>\n",
-       "    .dataframe tbody tr th:only-of-type {\n",
-       "        vertical-align: middle;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe tbody tr th {\n",
-       "        vertical-align: top;\n",
-       "    }\n",
-       "\n",
-       "    .dataframe thead th {\n",
-       "        text-align: right;\n",
-       "    }\n",
-       "</style>\n",
-       "<table border=\"1\" class=\"dataframe\">\n",
-       "  <thead>\n",
-       "    <tr style=\"text-align: right;\">\n",
-       "      <th></th>\n",
-       "      <th>age</th>\n",
-       "      <th>vat</th>\n",
-       "      <th>consumption</th>\n",
-       "      <th>full_rate_vat_expenditure_rate</th>\n",
-       "      <th>food_and_non_alcoholic_beverages_consumption</th>\n",
-       "      <th>alcohol_and_tobacco_consumption</th>\n",
-       "      <th>clothing_and_footwear_consumption</th>\n",
-       "      <th>housing_water_and_electricity_consumption</th>\n",
-       "      <th>household_furnishings_consumption</th>\n",
-       "      <th>health_consumption</th>\n",
-       "      <th>transport_consumption</th>\n",
-       "      <th>communication_consumption</th>\n",
-       "      <th>recreation_consumption</th>\n",
-       "      <th>education_consumption</th>\n",
-       "      <th>restaurants_and_hotels_consumption</th>\n",
-       "      <th>miscellaneous_consumption</th>\n",
-       "      <th>petrol_spending</th>\n",
-       "      <th>diesel_spending</th>\n",
-       "      <th>domestic_energy_consumption</th>\n",
-       "    </tr>\n",
-       "  </thead>\n",
-       "  <tbody>\n",
-       "    <tr>\n",
-       "      <th>312</th>\n",
-       "      <td>80.0</td>\n",
-       "      <td>-929.965881</td>\n",
-       "      <td>2118.353027</td>\n",
-       "      <td>-0.841608</td>\n",
-       "      <td>1270.274780</td>\n",
-       "      <td>0.0</td>\n",
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-       "      <td>614.104309</td>\n",
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-       "      <td>0.0</td>\n",
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-       "      <td>0.0</td>\n",
-       "      <td>187.915909</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>46.057823</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>283.716187</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1039</th>\n",
-       "      <td>80.0</td>\n",
-       "      <td>-129.693314</td>\n",
-       "      <td>-1217.768799</td>\n",
-       "      <td>0.194851</td>\n",
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-       "      <td>0.0</td>\n",
-       "      <td>308.894470</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>666.303162</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1040</th>\n",
-       "      <td>52.0</td>\n",
-       "      <td>-129.693314</td>\n",
-       "      <td>-1217.768799</td>\n",
-       "      <td>0.194851</td>\n",
-       "      <td>85.360497</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>-1903.723389</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.00000</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>291.699554</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>308.894470</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>666.303162</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>1896</th>\n",
-       "      <td>80.0</td>\n",
-       "      <td>-593.512024</td>\n",
-       "      <td>1351.950684</td>\n",
-       "      <td>-0.841608</td>\n",
-       "      <td>461.806427</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>666.917297</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.00000</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>187.915909</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>35.310997</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>354.338196</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>2057</th>\n",
-       "      <td>35.0</td>\n",
-       "      <td>-40.791981</td>\n",
-       "      <td>-1168.026367</td>\n",
-       "      <td>0.058855</td>\n",
-       "      <td>692.402588</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>-2319.164795</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>30.09111</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>187.915909</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>240.728882</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>-2926.207031</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>...</th>\n",
-       "      <td>...</td>\n",
-       "      <td>...</td>\n",
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-       "    <tr>\n",
-       "      <th>209307</th>\n",
-       "      <td>50.0</td>\n",
-       "      <td>-9.732808</td>\n",
-       "      <td>-125.584320</td>\n",
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-       "      <td>131.418320</td>\n",
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-       "      <td>0.0</td>\n",
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-       "      <td>0.00000</td>\n",
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-       "      <td>0.0</td>\n",
-       "      <td>0.000000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>209308</th>\n",
-       "      <td>49.0</td>\n",
-       "      <td>-9.732808</td>\n",
-       "      <td>-125.584320</td>\n",
-       "      <td>0.139750</td>\n",
-       "      <td>131.418320</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
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-       "      <td>0.0</td>\n",
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-       "      <td>0.00000</td>\n",
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-       "      <td>0.000000</td>\n",
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-       "    <tr>\n",
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-       "      <td>13.0</td>\n",
-       "      <td>-9.732808</td>\n",
-       "      <td>-125.584320</td>\n",
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-       "      <td>167.343414</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.000000</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
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-       "      <td>68.0</td>\n",
-       "      <td>-23.210276</td>\n",
-       "      <td>-378.288330</td>\n",
-       "      <td>0.109076</td>\n",
-       "      <td>1337.519165</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>-1903.723389</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
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-       "      <td>0.0</td>\n",
-       "      <td>187.915909</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.000000</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>638.054382</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>212170</th>\n",
-       "      <td>65.0</td>\n",
-       "      <td>-23.210276</td>\n",
-       "      <td>-378.288330</td>\n",
-       "      <td>0.109076</td>\n",
-       "      <td>1337.519165</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>0.0</td>\n",
-       "      <td>-1903.723389</td>\n",
-       "      <td>0.0</td>\n",
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-       "      <td>0.0</td>\n",
-       "      <td>187.915909</td>\n",
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-       "      <td>0.0</td>\n",
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-       "      <td>0.0</td>\n",
-       "      <td>638.054382</td>\n",
-       "    </tr>\n",
-       "  </tbody>\n",
-       "</table>\n",
-       "<p>464 rows × 19 columns</p>\n",
-       "</div>"
-      ],
-      "text/plain": [
-       "         age         vat  consumption  full_rate_vat_expenditure_rate  \\\n",
-       "312     80.0 -929.965881  2118.353027                       -0.841608   \n",
-       "1039    80.0 -129.693314 -1217.768799                        0.194851   \n",
-       "1040    52.0 -129.693314 -1217.768799                        0.194851   \n",
-       "1896    80.0 -593.512024  1351.950684                       -0.841608   \n",
-       "2057    35.0  -40.791981 -1168.026367                        0.058855   \n",
-       "...      ...         ...          ...                             ...   \n",
-       "209307  50.0   -9.732808  -125.584320                        0.139750   \n",
-       "209308  49.0   -9.732808  -125.584320                        0.139750   \n",
-       "209309  13.0   -9.732808  -125.584320                        0.139750   \n",
-       "212169  68.0  -23.210276  -378.288330                        0.109076   \n",
-       "212170  65.0  -23.210276  -378.288330                        0.109076   \n",
-       "\n",
-       "        food_and_non_alcoholic_beverages_consumption  \\\n",
-       "312                                      1270.274780   \n",
-       "1039                                       85.360497   \n",
-       "1040                                       85.360497   \n",
-       "1896                                      461.806427   \n",
-       "2057                                      692.402588   \n",
-       "...                                              ...   \n",
-       "209307                                    131.418320   \n",
-       "209308                                    131.418320   \n",
-       "209309                                    131.418320   \n",
-       "212169                                   1337.519165   \n",
-       "212170                                   1337.519165   \n",
-       "\n",
-       "        alcohol_and_tobacco_consumption  clothing_and_footwear_consumption  \\\n",
-       "312                                 0.0                                0.0   \n",
-       "1039                                0.0                                0.0   \n",
-       "1040                                0.0                                0.0   \n",
-       "1896                                0.0                                0.0   \n",
-       "2057                                0.0                                0.0   \n",
-       "...                                 ...                                ...   \n",
-       "209307                              0.0                                0.0   \n",
-       "209308                              0.0                                0.0   \n",
-       "209309                              0.0                                0.0   \n",
-       "212169                              0.0                                0.0   \n",
-       "212170                              0.0                                0.0   \n",
-       "\n",
-       "        housing_water_and_electricity_consumption  \\\n",
-       "312                                    614.104309   \n",
-       "1039                                 -1903.723389   \n",
-       "1040                                 -1903.723389   \n",
-       "1896                                   666.917297   \n",
-       "2057                                 -2319.164795   \n",
-       "...                                           ...   \n",
-       "209307                                -424.346069   \n",
-       "209308                                -424.346069   \n",
-       "209309                                -424.346069   \n",
-       "212169                               -1903.723389   \n",
-       "212170                               -1903.723389   \n",
-       "\n",
-       "        household_furnishings_consumption  health_consumption  \\\n",
-       "312                                   0.0                 0.0   \n",
-       "1039                                  0.0                 0.0   \n",
-       "1040                                  0.0                 0.0   \n",
-       "1896                                  0.0                 0.0   \n",
-       "2057                                  0.0                 0.0   \n",
-       "...                                   ...                 ...   \n",
-       "209307                                0.0                 0.0   \n",
-       "209308                                0.0                 0.0   \n",
-       "209309                                0.0                 0.0   \n",
-       "212169                                0.0                 0.0   \n",
-       "212170                                0.0                 0.0   \n",
-       "\n",
-       "        transport_consumption  communication_consumption  \\\n",
-       "312                   0.00000                        0.0   \n",
-       "1039                  0.00000                        0.0   \n",
-       "1040                  0.00000                        0.0   \n",
-       "1896                  0.00000                        0.0   \n",
-       "2057                 30.09111                        0.0   \n",
-       "...                       ...                        ...   \n",
-       "209307                0.00000                        0.0   \n",
-       "209308                0.00000                        0.0   \n",
-       "209309                0.00000                        0.0   \n",
-       "212169                0.00000                        0.0   \n",
-       "212170                0.00000                        0.0   \n",
-       "\n",
-       "        recreation_consumption  education_consumption  \\\n",
-       "312                 187.915909                    0.0   \n",
-       "1039                291.699554                    0.0   \n",
-       "1040                291.699554                    0.0   \n",
-       "1896                187.915909                    0.0   \n",
-       "2057                187.915909                    0.0   \n",
-       "...                        ...                    ...   \n",
-       "209307                0.000000                    0.0   \n",
-       "209308                0.000000                    0.0   \n",
-       "209309                0.000000                    0.0   \n",
-       "212169              187.915909                    0.0   \n",
-       "212170              187.915909                    0.0   \n",
-       "\n",
-       "        restaurants_and_hotels_consumption  miscellaneous_consumption  \\\n",
-       "312                                    0.0                  46.057823   \n",
-       "1039                                   0.0                 308.894470   \n",
-       "1040                                   0.0                 308.894470   \n",
-       "1896                                   0.0                  35.310997   \n",
-       "2057                                   0.0                 240.728882   \n",
-       "...                                    ...                        ...   \n",
-       "209307                                 0.0                 167.343414   \n",
-       "209308                                 0.0                 167.343414   \n",
-       "209309                                 0.0                 167.343414   \n",
-       "212169                                 0.0                   0.000000   \n",
-       "212170                                 0.0                   0.000000   \n",
-       "\n",
-       "        petrol_spending  diesel_spending  domestic_energy_consumption  \n",
-       "312                 0.0              0.0                   283.716187  \n",
-       "1039                0.0              0.0                   666.303162  \n",
-       "1040                0.0              0.0                   666.303162  \n",
-       "1896                0.0              0.0                   354.338196  \n",
-       "2057                0.0              0.0                 -2926.207031  \n",
-       "...                 ...              ...                          ...  \n",
-       "209307              0.0              0.0                     0.000000  \n",
-       "209308              0.0              0.0                     0.000000  \n",
-       "209309              0.0              0.0                     0.000000  \n",
-       "212169              0.0              0.0                   638.054382  \n",
-       "212170              0.0              0.0                   638.054382  \n",
-       "\n",
-       "[464 rows x 19 columns]"
-      ]
-     },
-     "execution_count": 6,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
-   "source": [
-    "IMPUTATIONS = [\n",
-    "    \"food_and_non_alcoholic_beverages_consumption\",\n",
-    "    \"alcohol_and_tobacco_consumption\",\n",
-    "    \"clothing_and_footwear_consumption\",\n",
-    "    \"housing_water_and_electricity_consumption\",\n",
-    "    \"household_furnishings_consumption\",\n",
-    "    \"health_consumption\",\n",
-    "    \"transport_consumption\",\n",
-    "    \"communication_consumption\",\n",
-    "    \"recreation_consumption\",\n",
-    "    \"education_consumption\",\n",
-    "    \"restaurants_and_hotels_consumption\",\n",
-    "    \"miscellaneous_consumption\",\n",
-    "    \"petrol_spending\",\n",
-    "    \"diesel_spending\",\n",
-    "    \"domestic_energy_consumption\",\n",
-    "]\n",
-    "baseline_income = baseline.calculate(\n",
-    "    \"household_net_income\", period=2024, map_to=\"person\"\n",
-    ")\n",
-    "reformed_income = reformed.calculate(\n",
-    "    \"household_net_income\", period=2024, map_to=\"person\"\n",
-    ")\n",
-    "difference_income = reformed_income - baseline_income\n",
-    "\n",
-    "baseline.calculate_dataframe(\n",
-    "    [\n",
-    "        \"age\",\n",
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-    "        \"full_rate_vat_expenditure_rate\",\n",
-    "        *IMPUTATIONS,\n",
-    "    ]\n",
-    ")[difference_income > 0]"
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-  }
- ],
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