src/fed2019/Schedule3.ts

   1 // Copyright 2020 Blue Static <https://www.bluestatic.org>
   2 // This program is free software licensed under the GNU General Public License,
   3 // version 3.0. The full text of the license can be found in LICENSE.txt.
   4 // SPDX-License-Identifier: GPL-3.0-only
   5
   6 import { Form, TaxReturn } from '../core';
   7 import { AccumulatorLine, ComputedLine, InputLine, ReferenceLine, UnsupportedLine, sumFormLines } from '../core/Line';
   8 import { NotFoundError, UnsupportedFeatureError } from '../core/Errors';
   9
  10 import Form1040, { FilingStatus } from './Form1040';
  11 import Form1099DIV from './Form1099DIV';
  12 import Form1099INT from './Form1099INT';
  13 import Form1116 from './Form1116';
  14 import Schedule2 from './Schedule2';
  15
  16 export interface Schedule3Input {
  17   estimatedTaxPayments?: number;
  18 };
  19
  20 export default class Schedule3 extends Form<Schedule3['lines'], Schedule3Input> {
  21   readonly name = 'Schedule 3';
  22
  23   readonly lines = {
  24     // Part 1
  25     '1': new ComputedLine((tr): number => {
  26       const f1040 = tr.getForm(Form1040);
  27
  28       const totalForeignTax = (new AccumulatorLine(Form1099DIV, '7')).value(tr) +
  29                               (new AccumulatorLine(Form1099INT, '6')).value(tr);
  30       const limit = f1040.filingStatus == FilingStatus.MarriedFilingJoint ? 600 : 300;
  31
  32       if (totalForeignTax < limit) {
  33         const sched2l2 = new ReferenceLine(Schedule2, '2', undefined, 0);
  34         return Math.min(totalForeignTax, f1040.getValue(tr, '12a') + sched2l2.value(tr));
  35       }
  36       return tr.getForm(Form1116).getValue(tr, '33');
  37     }, 'Foreign tax credit'),
  38     '2': new UnsupportedLine('Credit for child and dependent care expenses. Attach Form 2441'),
  39     '3': new UnsupportedLine('Education credits from Form 8863, line 19'),
  40     '4': new UnsupportedLine('Retirement savings contributions credit. Attach Form 8880'),
  41     '5': new UnsupportedLine('Residential energy credits. Attach Form 5695'),
  42     '6a': new UnsupportedLine('Form 3800'),
  43     '6b': new UnsupportedLine('Form 8801'),
  44     '6c': new UnsupportedLine('Other nonrefundable credits'),
  45     '7': new ComputedLine((tr): number => {
  46       return sumFormLines(tr, this, ['1', '2', '3', '4', '5', '6a', '6b', '6c']);
  47     }),
  48
  49     // Part 2
  50     '8': new InputLine<Schedule3Input>('estimatedTaxPayments'),
  51     '9': new UnsupportedLine('Net premium tax credit. Attach Form 8962'),
  52     '10': new UnsupportedLine('Amount paid with request for extension to file (see instructions)'),
  53     '11': new UnsupportedLine('Excess social security and tier 1 RRTA tax withheld'),
  54     '12': new UnsupportedLine('Credit for federal tax on fuels. Attach Form 4136'),
  55     '13a': new UnsupportedLine('Form 2439'),
  56     // 13b is reserved
  57     '13c': new UnsupportedLine('Form 8885'),
  58     '13d': new UnsupportedLine('Other refundable credits'),
  59     '14': new ComputedLine((tr): number => {
  60       return sumFormLines(tr, this, ['8', '9', '10', '11', '12', '13a', '13c', '13d']);
  61     }),
  62   };
  63 };