src/fed2019/Schedule3.ts

   1 import { Form } from '../core';
   2 import { TaxReturn } from '../core';
   3 import { AccumulatorLine, ComputedLine, InputLine, ReferenceLine } from '../core/Line';
   4 import { NotFoundError, UnsupportedFeatureError } from '../core/Errors';
   5
   6 import Form1040, { FilingStatus } from './Form1040';
   7 import Form1099DIV from './Form1099DIV';
   8 import Form1099INT from './Form1099INT';
   9 import Form1116 from './Form1116';
  10 import Schedule2 from './Schedule2';
  11
  12 export interface Schedule3Input {
  13   estimatedTaxPayments?: number;
  14 };
  15
  16 export default class Schedule3 extends Form<Schedule3['_lines'], Schedule3Input> {
  17   readonly name = 'Schedule 3';
  18
  19   readonly _lines = {
  20     // Part 1
  21     '1': new ComputedLine((tr): number => {
  22       const f1040 = tr.getForm(Form1040);
  23
  24       const totalForeignTax = (new AccumulatorLine(Form1099DIV, '7')).value(tr) +
  25                               (new AccumulatorLine(Form1099INT, '6')).value(tr);
  26       const limit = f1040.getInput('filingStatus') == FilingStatus.MarriedFilingJoint ? 600 : 300;
  27
  28       if (totalForeignTax < limit) {
  29         const sched2l2 = new ReferenceLine(Schedule2, '2', undefined, 0);
  30         return Math.min(totalForeignTax, f1040.getValue(tr, '12a') + sched2l2.value(tr));
  31       }
  32       return tr.getForm(Form1116).getValue(tr, '33');
  33     }, 'Foreign tax credit'),
  34     // 2 not supported - Credit for child and dependent care expenses. Attach Form 2441
  35     // 3 not supported - Education credits from Form 8863, line 19
  36     // 4 not supported - Retirement savings contributions credit. Attach Form 8880
  37     // 5 not supported - Residential energy credits. Attach Form 5695
  38     // 6a not supported - Form 3800
  39     // 6b not supported - Form 8801
  40     // 6c not supported - Other nonrefundable credits
  41     '7': new ComputedLine((tr): number => {
  42       // Should include 2-6.
  43       return this.getValue(tr, '1');
  44     }),
  45
  46     // Part 2
  47     '8': new InputLine<Schedule3Input>('estimatedTaxPayments'),
  48     // 9 not supported - Net premium tax credit. Attach Form 8962
  49     // 10 not supported - Amount paid with request for extension to file (see instructions)
  50     // 11 not supported - Excess social security and tier 1 RRTA tax withheld
  51     // 12 not supported - Credit for federal tax on fuels. Attach Form 4136
  52     // 13a not supported - Form 2439
  53     // 13b is reserved
  54     // 13c not supported - Form 8885
  55     // 13d not supported - Other refundable credits
  56     '14': new ComputedLine((tr): number => {
  57       // Should include 9-13.
  58       return this.getValue(tr, '8');
  59     }),
  60   };
  61 };