diff --git a/docs/notebooks/10_Minutes_to_Tax-Calculator.ipynb b/docs/notebooks/10_Minutes_to_Tax-Calculator.ipynb
index 816e8b217..d3d1a5eef 100644
--- a/docs/notebooks/10_Minutes_to_Tax-Calculator.ipynb
+++ b/docs/notebooks/10_Minutes_to_Tax-Calculator.ipynb
@@ -4,14 +4,14 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# How to use the Tax Calculator"
+    "# How to use Tax-Calculator"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "This guide teaches you how to use the Open Source Policy Center's Tax Calculator. To follow along you will need the following: \n",
+    "This guide teaches you how to use Tax-Calculator. To follow along you will need the following: \n",
     "\n",
     "1. A copy of the taxcalc package installed on your local machine.\n",
     "2. A copy of the puf.csv file output from the TaxData repository. "
@@ -55,9 +55,9 @@
     "# The baseline includes AMT repeal. \n",
     "p_xx = Policy()\n",
     "reform_xx = {\n",
-    "    2016: {\n",
-    "        '_AMT_trt1': [0.0],\n",
-    "        '_AMT_trt2': [0.0]\n",
+    "    2017: {\n",
+    "        '_AMT_rt1': [0.0],\n",
+    "        '_AMT_rt2': [0.0]\n",
     "    }\n",
     "}\n",
     "p_xx.implement_reform(reform_xx)\n",
@@ -67,10 +67,10 @@
     "\n",
     "p_yy = Policy()\n",
     "reform_yy = {\n",
-    "    2016: {\n",
+    "    2017: {\n",
     "        '_II_brk2': [[65005, 130010, 65005, 88180, 0, 0]],\n",
-    "        '_AMT_trt1': [0.0],\n",
-    "        '_AMT_trt2': [0.0]\n",
+    "        '_AMT_rt1': [0.0],\n",
+    "        '_AMT_rt2': [0.0]\n",
     "    }\n",
     "}\n",
     "p_yy.implement_reform(reform_yy)"
@@ -80,32 +80,60 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "### Create calculator objects with default tax data and advance the calculator to 2016"
+    "### Create calculator objects with default tax data\n",
+    "###### The data are automatically extrapolated to 2013 since that is the first tax year modeled by Tax-Calculator. "
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 3,
    "metadata": {
     "collapsed": false
    },
    "outputs": [
+    {
+     "name": "stderr",
+     "output_type": "stream",
+     "text": [
+      "../../taxcalc/behavior.py:190: VisibleDeprecationWarning: using a non-integer number instead of an integer will result in an error in the future\n",
+      "  val = values[year]\n"
+     ]
+    },
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
       "You loaded data for 2009.\n",
-      "Your data have been extrapolated to 2016.\n",
+      "Instantiation of the calculator automatically extrapolated your data to 2013.\n",
       "You loaded data for 2009.\n",
-      "Your data have been extrapolated to 2013.\n"
+      "Instantiation of the calculator automatically extrapolated your data to 2013.\n"
      ]
     }
    ],
    "source": [
     "c_xx = Calculator(policy=p_xx, records=Records(\"../../puf.csv\"))\n",
-    "c_xx.advance_to_year(2016)\n",
-    "c_yy = Calculator(policy=p_yy, records=Records(\"../../puf.csv\"))\n",
-    "c_yy.advance_to_year(2016)"
+    "c_yy = Calculator(policy=p_yy, records=Records(\"../../puf.csv\"))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Advance the calculator objects to 2017 for this analysis. "
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "collapsed": false
+   },
+   "outputs": [],
+   "source": [
+    "c_xx.advance_to_year(2017)\n",
+    "c_yy.advance_to_year(2017)\n",
+    "assert c_xx.current_year == 2017\n",
+    "assert c_yy.current_year == 2017\n"
    ]
   },
   {
@@ -117,7 +145,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": null,
    "metadata": {
     "collapsed": false
    },
@@ -138,22 +166,11 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": null,
    "metadata": {
     "collapsed": false
    },
-   "outputs": [
-    {
-     "data": {
-      "text/plain": [
-       "-101735788190.66336"
-      ]
-     },
-     "execution_count": 9,
-     "metadata": {},
-     "output_type": "execute_result"
-    }
-   ],
+   "outputs": [],
    "source": [
     "((c_yy.records._combined - c_xx.records._combined)*c_xx.records.s006).sum()"
    ]
@@ -184,7 +201,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython2",
-   "version": "2.7.11"
+   "version": "2.7.12"
   }
  },
  "nbformat": 4,
diff --git a/taxcalc/calculate.py b/taxcalc/calculate.py
index 967d160d1..33ebb9460 100644
--- a/taxcalc/calculate.py
+++ b/taxcalc/calculate.py
@@ -142,7 +142,8 @@ def __init__(self, policy=None, records=None, verbose=True,
                     self.growth.apply_change(self.records)
                 self.records.increment_year()
             if verbose:
-                print('Your data have been extrapolated to ' +
+                print('Instantiation of the calculator automatically ' +
+                      'extrapolated your data to ' +
                       str(self.records.current_year) + '.')
         assert self.policy.current_year == self.records.current_year