TimeTrex/classes/payroll_deduction/US/MD_ALL.class.php

<?php
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/**
 * @package PayrollDeduction\US
 */
class PayrollDeduction_US_MD_ALL extends PayrollDeduction_US_MD {

	var $district_options = [
			20180601 => [ //01-Jun-2018
						  'standard_deduction_rate'    => 15,
						  'standard_deduction_minimum' => 1500,
						  'standard_deduction_maximum' => 2250,
						  'allowance'                  => 3200,
			],

			//01-Jan-12: No change.
			//01-Jan-11: No change.
			//01-Jan-10: No change.
			//01-Jan-09: No change.
			20080701 => [
					'standard_deduction_rate'    => 15,
					'standard_deduction_minimum' => 1500,
					'standard_deduction_maximum' => 2000,
					'allowance'                  => 3200,
			],
			20060101 => [
					'standard_deduction_rate'    => 15,
					'standard_deduction_minimum' => 1500,
					'standard_deduction_maximum' => 2000,
					'allowance'                  => 2400,
			],
	];

	function getDistrictAnnualTaxableIncome() {
		$annual_income = $this->getAnnualTaxableIncome();
		$standard_deduction = $this->getDistrictStandardDeductionAmount();
		$district_allowance = $this->getDistrictAllowanceAmount();

		$income = bcsub( bcsub( $annual_income, $standard_deduction ), $district_allowance );

		Debug::text( 'District Annual Taxable Income: ' . $income, __FILE__, __LINE__, __METHOD__, 10 );

		return $income;
	}

	function getDistrictStandardDeductionAmount() {
		$retarr = $this->getDataFromRateArray( $this->getDate(), $this->district_options );
		if ( $retarr == false ) {
			return false;
		}

		$rate = bcdiv( $retarr['standard_deduction_rate'], 100 );

		$deduction = bcmul( $this->getAnnualTaxableIncome(), $rate );

		if ( $deduction < $retarr['standard_deduction_minimum'] ) {
			$retval = $retarr['standard_deduction_minimum'];
		} else if ( $deduction > $retarr['standard_deduction_maximum'] ) {
			$retval = $retarr['standard_deduction_maximum'];
		} else {
			$retval = $deduction;
		}

		Debug::text( 'District Standard Deduction Amount: ' . $retval, __FILE__, __LINE__, __METHOD__, 10 );

		return $retval;
	}

	function getDistrictAllowanceAmount() {
		$retarr = $this->getDataFromRateArray( $this->getDate(), $this->district_options );
		if ( $retarr == false ) {
			return false;
		}

		$allowance_arr = $retarr['allowance'];

		$retval = bcmul( $this->getDistrictAllowance(), $allowance_arr );

		Debug::text( 'District Allowance Amount: ' . $retval, __FILE__, __LINE__, __METHOD__, 10 );

		return $retval;
	}

	function getDistrictTaxPayable() {
		$annual_income = $this->getDistrictAnnualTaxableIncome();

		$rate = bcdiv( (float)$this->getUserValue1(), 100 );

		$retval = bcmul( $annual_income, $rate );

		if ( $retval < 0 ) {
			$retval = 0;
		}

		Debug::text( 'District Annual Tax Payable: ' . $retval, __FILE__, __LINE__, __METHOD__, 10 );

		return $retval;
	}
}

?>