consider odc in iitax calculation

docs/guide/policy_params.md

@@ -1310,6 +1310,21 @@ _Known Values:_
 _Valid Range:_ min = 0 and max = 9e+99  
 _Out-of-Range Action:_ error  
 
+####  `ODC_refundable`  
+_Description:_ If true, the other dependent tax credit is made fully refundable.    
+_Has An Effect When Using:_ _PUF data:_ True _CPS data:_ True  
+_Can Be Inflation Indexed:_ False _Is Inflation Indexed:_ False  
+_Value Type:_ bool  
+_Known Values:_  
+2013: False  
+2014: False  
+2015: False  
+2016: False  
+2017: False  
+2018: False  
+2019: False  
+_Valid Range:_ min = False and max = True  
+_Out-of-Range Action:_ error
 
 ## Itemized Deductions
 

taxcalc/calcfunctions.py

@@ -3108,7 +3108,7 @@ def AdditionalCTC(codtc_limited, ACTC_c, n24, earned, ACTC_Income_thd,
 def C1040(c05800, c07180, c07200, c07220, c07230, c07240, c07260, c07300,
           c07400, c07600, c08000, e09700, e09800, e09900, niit, othertaxes,
           c07100, c09200, odc, charity_credit,
-          personal_nonrefundable_credit, CTC_refundable):
+          personal_nonrefundable_credit, CTC_refundable, ODC_refundable):
     """
     Computes total used nonrefundable credits, c07100, othertaxes, and
     income tax before refundable credits, c09200.
@@ -3170,7 +3170,7 @@ def C1040(c05800, c07180, c07200, c07220, c07230, c07240, c07260, c07300,
     # total used nonrefundable credits (as computed in NonrefundableCredits)
     c07100 = (c07180 + c07200 + c07600 + c07300 + c07400 +
               c07220 * (1. - CTC_refundable) + c08000 +
-              c07230 + c07240 + c07260 + odc + charity_credit +
+              c07230 + c07240 + c07260 + odc * (1. - ODC_refundable) + charity_credit +
               personal_nonrefundable_credit)
     # tax after credits (2016 Form 1040, line 56)
     tax_net_nonrefundable_credits = max(0., c05800 - c07100)
@@ -3265,7 +3265,7 @@ def CTC_new(CTC_new_c, CTC_new_rt, CTC_new_c_under6_bonus,
 @iterate_jit(nopython=True)
 def IITAX(c59660, c11070, c10960, personal_refundable_credit, ctc_new, rptc,
           c09200, payrolltax, CDCC_refund, recovery_rebate_credit,
-          eitc, c07220, CTC_refundable, refund, iitax, combined):
+          eitc, c07220, odc, CTC_refundable, ODC_refundable, refund, iitax, combined):
     """
     Computes final taxes.
 
@@ -3310,11 +3310,15 @@ def IITAX(c59660, c11070, c10960, personal_refundable_credit, ctc_new, rptc,
     """
     eitc = c59660
     if CTC_refundable:
-        ctc_refund = c07220
+        ctc_refund = c07220 
     else:
         ctc_refund = 0.
+    if ODC_refundable:
+        odc_refund = odc
+    else:
+        odc_refund = 0.
     refund = (eitc + c11070 + c10960 + CDCC_refund + recovery_rebate_credit +
-              personal_refundable_credit + ctc_new + rptc + ctc_refund)
+              personal_refundable_credit + ctc_new + rptc + ctc_refund + odc_refund) 
     iitax = c09200 - refund
     combined = iitax + payrolltax
     return (eitc, refund, iitax, combined)

taxcalc/policy_current_law.json

@@ -16556,6 +16556,40 @@
             "cps": true
         }
     },
+    "ODC_refundable": {
+        "title": "Whether the other dependents tax credit is fully refundable",
+        "description": "If true, the other dependents tax credit is made fully refundable.",
+        "notes": "",
+        "section_1": "Child/Dependent Credits",
+        "section_2": "Other Dependent Tax Credit",
+        "indexable": false,
+        "indexed": false,
+        "type": "bool",
+        "value": [
+            {
+                "year": 2013,
+                "value": false
+            },
+            {
+                "year": 2021,
+                "value": true
+            },
+            {
+                "year": 2022,
+                "value": false
+            }
+        ],
+        "validators": {
+            "range": {
+                "min": false,
+                "max": true
+            }
+        },
+        "compatible_data": {
+            "puf": true,
+            "cps": true
+        }
+    },
     "CTC_ps": {
         "title": "Child tax credit phaseout MAGI start",
         "description": "Child tax credit begins to decrease when MAGI is above this level; read descriptions of the dependent credit amounts for how they phase out when MAGI is above this level.",

taxcalc/reforms/ARPA.json

@@ -29,6 +29,8 @@
                "2021": [0, 0, 0, 0, 0]},
     "CTC_refundable": {"2021": true,
                        "2022": false},
+    "ODC_refundable": {"2021": true,
+                       "2022": false},                   
     "CTC_include17": {"2021": true,
                       "2022": false},
     "CTC_new_c": {"2021": 1000,

taxcalc/tests/cpscsv_agg_expect.csv

@@ -12,13 +12,13 @@ AMT Income ($b),8319.8,10262.0,10680.4,11012.7,12497.3,13059.3,13639.6,14233.9,1
 AMT Liability ($b),8.1,0.8,0.7,0.6,1.8,1.3,1.1,1.0,1.0,16.7
 AMT Filers (#m),2.6,0.2,0.2,0.1,0.3,0.2,0.2,0.2,0.2,4.0
 Tax before Credits ($b),1116.0,1380.6,1449.5,1505.8,1762.7,1866.0,1913.9,1986.7,2086.0,2309.0
-Refundable Credits ($b),70.8,102.4,102.7,654.9,824.0,98.2,107.9,111.9,112.7,97.9
-Nonrefundable Credits ($b),32.7,97.2,99.1,99.4,3.2,107.7,107.8,109.1,110.9,29.9
+Refundable Credits ($b),70.8,102.4,102.7,654.9,827.3,98.2,107.9,111.9,112.7,97.9
+Nonrefundable Credits ($b),32.7,97.2,99.1,99.4,0.0,107.7,107.8,109.1,110.9,29.9
 Reform Surtaxes ($b),0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
 Other Taxes ($b),5.5,10.7,11.3,12.6,13.8,14.4,15.4,15.8,16.4,17.5
-Ind Income Tax ($b),1018.1,1191.6,1259.0,764.2,950.4,1674.6,1713.6,1781.5,1878.8,2198.7
+Ind Income Tax ($b),1018.1,1191.6,1259.0,764.2,949.3,1674.6,1713.6,1781.5,1878.8,2198.7
 Payroll Taxes ($b),1040.8,1141.6,1194.9,1217.9,1318.7,1421.6,1499.5,1571.9,1648.9,1723.0
-Combined Liability ($b),2059.0,2333.2,2453.9,1982.1,2269.1,3096.2,3213.2,3353.3,3527.7,3921.7
+Combined Liability ($b),2059.0,2333.2,2453.9,1982.1,2268.0,3096.2,3213.2,3353.3,3527.7,3921.7
 With Income Tax <= 0 (#m),88.1,96.2,97.0,135.2,127.7,96.0,98.3,99.5,100.1,98.0
 With Combined Tax <= 0 (#m),62.8,65.4,66.4,98.2,97.7,67.7,69.5,70.7,71.6,71.0
 UBI Benefits ($b),0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0

taxcalc/tests/pufcsv_agg_expect.csv

@@ -12,13 +12,13 @@ AMT Income ($b),10512.6,11427.4,11835.3,12265.7,14381.5,14811.8,15123.1,15662.5,
 AMT Liability ($b),51.3,23.2,24.1,25.1,29.0,28.9,30.1,31.3,32.7,84.2
 AMT Filers (#m),5.7,0.6,0.6,0.3,0.7,0.7,0.6,0.6,0.6,7.1
 Tax before Credits ($b),1708.1,1735.5,1802.2,1887.2,2303.7,2387.2,2353.8,2412.0,2537.2,2784.3
-Refundable Credits ($b),102.9,117.4,118.5,641.8,800.0,119.1,129.3,134.2,136.3,122.4
-Nonrefundable Credits ($b),67.0,127.3,129.2,128.7,50.4,140.7,137.4,138.0,141.4,74.4
+Refundable Credits ($b),102.9,117.4,118.5,641.8,802.7,119.1,129.3,134.2,136.3,122.4
+Nonrefundable Credits ($b),67.0,127.3,129.2,128.7,47.6,140.7,137.4,138.0,141.4,74.4
 Reform Surtaxes ($b),0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0
 Other Taxes ($b),40.0,44.8,43.6,52.9,83.6,73.6,67.3,64.4,63.9,62.6
-Ind Income Tax ($b),1578.3,1535.5,1598.1,1169.6,1538.0,2200.9,2154.3,2204.2,2323.4,2650.0
+Ind Income Tax ($b),1578.3,1535.5,1598.1,1169.6,1536.9,2200.9,2154.3,2204.2,2323.4,2650.0
 Payroll Taxes ($b),1083.8,1133.3,1185.4,1209.0,1306.0,1403.4,1482.1,1553.4,1629.6,1703.2
-Combined Liability ($b),2662.0,2668.8,2783.5,2378.5,2844.0,3604.3,3636.4,3757.6,3953.0,4353.2
+Combined Liability ($b),2662.0,2668.8,2783.5,2378.5,2842.9,3604.3,3636.4,3757.6,3953.0,4353.2
 With Income Tax <= 0 (#m),92.8,98.6,99.7,131.4,125.0,100.2,102.5,103.9,104.9,101.7
 With Combined Tax <= 0 (#m),63.4,65.6,66.8,102.0,94.5,68.8,70.6,71.9,73.0,72.8
 UBI Benefits ($b),0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0