First commit of app, only added salary after tax

community/rexdevereux/canada_financial_choice/README.MD

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+<!--fused:readme-->
+Exported from Fused UDF Workbench
+

community/rexdevereux/canada_financial_choice/canada_financial_choice.py

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+import streamlit as st
+import pandas as pd
+import altair as alt
+
+# --- Tax brackets, as provided ---
+federal_brackets = [
+    (0, 55867, 0.15),
+    (55867, 111733, 0.205),
+    (111733, 173205, 0.26),
+    (173205, 246752, 0.29),
+    (246752, float('inf'), 0.33)
+]
+
+provincial_brackets = {
+    "Ontario": [(0, 49231, 0.0505), (49231, 98463, 0.0915), (98463, 150000, 0.1116), (150000, 220000, 0.1216), (220000, float('inf'), 0.1316)],
+    "Alberta": [(0, 148269, 0.10), (148269, 177922, 0.12), (177922, 237230, 0.13), (237230, 355845, 0.14), (355845, float('inf'), 0.15)],
+    "British Columbia": [(0, 45654, 0.0506), (45654, 91310, 0.077), (91310, 104835, 0.105), (104835, 127299, 0.1229), (127299, 172602, 0.147), (172602, float('inf'), 0.168)],
+    "Quebec": [(0, 55780, 0.15), (55780, 111505, 0.20), (111505, 134095, 0.24), (134095, float('inf'), 0.2575)],
+    "Manitoba": [(0, 45100, 0.108), (45100, 100000, 0.1275), (100000, float('inf'), 0.174)],
+    "Saskatchewan": [(0, 50777, 0.105), (50777, 145212, 0.125), (145212, float('inf'), 0.145)],
+    "Nova Scotia": [(0, 29590, 0.0879), (29590, 59180, 0.1495), (59180, 93000, 0.1667), (93000, 150000, 0.175), (150000, float('inf'), 0.21)],
+    "New Brunswick": [(0, 49000, 0.094), (49000, 98000, 0.14), (98000, 162383, 0.16), (162383, float('inf'), 0.195)],
+    "Newfoundland and Labrador": [(0, 41457, 0.087), (41457, 82913, 0.145), (82913, 148027, 0.158), (148027, float('inf'), 0.178)],
+    "Prince Edward Island": [(0, 31984, 0.098), (31984, 63969, 0.138), (63969, float('inf'), 0.167)],
+    "Northwest Territories": [(0, 50197, 0.059), (50197, 100392, 0.086), (100392, 163651, 0.122), (163651, float('inf'), 0.1405)],
+    "Yukon": [(0, 55867, 0.064), (55867, 111733, 0.09), (111733, 173205, 0.109), (173205, 246752, 0.128), (246752, float('inf'), 0.15)],
+    "Nunavut": [(0, 51279, 0.04), (51279, 102555, 0.07), (102555, 167275, 0.09), (167275, float('inf'), 0.115)]
+}
+
+# --- Tax calculator ---
+def tax_calc(taxable_income, brackets):
+    tax = 0.0
+    for low, high, rate in brackets:
+        if taxable_income > low:
+            amt = min(high, taxable_income) - low
+            tax += amt * rate
+            if taxable_income < high:
+                break
+    return tax
+
+def after_tax_income(salary, rrsp, province):
+    ti = max(0, salary - rrsp)
+    fed_tax = tax_calc(ti, federal_brackets)
+    prov_tax = tax_calc(ti, provincial_brackets[province])
+    return salary - fed_tax - prov_tax
+
+# --- Streamlit App ---
+st.set_page_config("After-Tax Income Canada", layout="centered")
+
+st.title("Compare After-Tax Income Across Canadian Provinces (2025)")
+st.write("Enter your details to see how much after-tax income you’d keep in each province. RRSP contributions reduce taxable income.")
+
+salary = st.number_input("Annual Salary ($)", min_value=0, value=85000, step=1000)
+rrsp = st.number_input("RRSP Contributions ($)", min_value=0, value=10000, step=1000)
+province = st.selectbox("Province", list(provincial_brackets.keys()), index=0)
+
+# Compute results for all provinces
+results = []
+for prov in provincial_brackets.keys():
+    income = after_tax_income(salary, rrsp, prov)
+    results.append({"Province": prov, "AfterTax": income, "Selected": prov == province})
+
+df = pd.DataFrame(results)
+
+# --- Altair chart ---
+highlight_color = "#D80621"  # deep green
+other_color = "#e1e5ea"      # pale gray
+
+chart = (
+    alt.Chart(df)
+    .mark_bar(size=32)
+    .encode(
+        x=alt.X("Province", sort="-y"),
+        y=alt.Y("AfterTax", title="After-Tax Income ($)", axis=alt.Axis(format="$,.0f")),
+        color=alt.condition(
+            alt.datum.Selected,
+            alt.value(highlight_color),
+            alt.value(other_color)
+        ),
+        tooltip=[
+            alt.Tooltip("Province"),
+            alt.Tooltip("AfterTax", format="$.0f", title="After-Tax Income"),
+        ]
+    )
+    .properties(width=700, height=420)
+)
+
+st.altair_chart(chart, use_container_width=True)
+
+# Show data table (optional)
+with st.expander("See calculation table"):
+    st.dataframe(df, hide_index=True)
+
+

community/rexdevereux/canada_financial_choice/meta.json

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+    "steps": [
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+        "udf": {
+          "type": "geopandas_v2",
+          "name": "canada_financial_choice",
+          "entrypoint": "udf",
+          "parameters": {},
+          "metadata": {
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+                "pickable": true
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+            "fused:udfType": "app",
+            "fused:slug": "canada_financial_choice",
+            "fused:name": "canada_financial_choice"
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+          "source": "canada_financial_choice.py",
+          "headers": []
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+}