2019 Child Tax Credit Calculator: Estimate Your Credit


2019 Child Tax Credit Calculator

Estimate your tax credit from the 2019 tax year. This tool helps with calculating your child tax credit using your 2019 income, filing status, and number of qualifying children. Note: These rules are for the 2019 tax year only and have since changed.


Enter your 2019 MAGI. This is your AGI with certain deductions added back. Units are in US Dollars.
Please enter a valid positive number.


Enter the number of children who were under age 17 at the end of 2019.
Please enter a valid positive number.


Select your 2019 tax filing status.


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What is calculating your child tax credit using your 2019 return?

Calculating your Child Tax Credit for the 2019 tax year involves using the specific rules set forth by the Tax Cuts and Jobs Act (TCJA) for that period. The Child Tax Credit (CTC) is a dollar-for-dollar reduction of your federal income tax liability, designed to help families with the cost of raising children. For 2019, the credit was worth up to $2,000 per qualifying child. This calculator specifically addresses these historical rules.

This process is crucial for anyone who might be amending a 2019 tax return or simply wants to understand their tax situation from that year. A common misunderstanding is applying current tax rules to past years; however, tax laws, especially regarding credits, change frequently. It’s essential to use the income thresholds and credit amounts specific to 2019 for an accurate calculation.

2019 Child Tax Credit Formula and Explanation

The calculation for the 2019 Child Tax Credit follows a two-step process: determining the maximum potential credit and then reducing it based on your income.

  1. Potential Credit Calculation: `Potential Credit = Number of Qualifying Children * $2,000`
  2. Income Reduction Calculation: The credit begins to phase out if your Modified Adjusted Gross Income (MAGI) is above certain thresholds. The phase-out is $50 for every $1,000 (or fraction thereof) that your MAGI exceeds the threshold.

The final credit is the potential credit minus the income reduction, but not less than zero.

Calculation Variables (2019 Tax Year)
Variable Meaning Unit Typical Range
Qualifying Children Number of dependents under age 17 at the end of 2019. Integer 1 – 10
Modified AGI (MAGI) Your adjusted gross income with specific deductions added back. USD ($) $20,000 – $500,000+
Income Threshold The MAGI level where the credit begins to decrease. USD ($) $200,000 or $400,000

For more on AGI, see our guide on the AGI calculator.

Practical Examples

Example 1: Married Couple Filing Jointly

A married couple has two qualifying children and a MAGI of $150,000 for 2019.

  • Inputs: MAGI = $150,000, Children = 2, Status = Married Filing Jointly
  • Units: Income in USD, Children as an integer
  • Calculation:
    • Potential Credit: 2 * $2,000 = $4,000
    • Income check: $150,000 is below the $400,000 threshold for MFJ.
    • Income Reduction: $0
  • Result: Their final Child Tax Credit is $4,000.

Example 2: Head of Household with Phase-Out

A single parent filing as Head of Household has one qualifying child and a MAGI of $215,500 for 2019.

  • Inputs: MAGI = $215,500, Children = 1, Status = Head of Household
  • Units: Income in USD, Children as an integer
  • Calculation:
    • Potential Credit: 1 * $2,000 = $2,000
    • Income check: $215,500 is above the $200,000 threshold.
    • Excess Income: $215,500 – $200,000 = $15,500
    • Number of $1,000 increments: $15,500 / $1,000 = 15.5, which rounds up to 16.
    • Income Reduction: 16 * $50 = $800
    • Final Credit: $2,000 – $800 = $1,200
  • Result: Their final Child Tax Credit is $1,200.

How to Use This 2019 Child Tax Credit Calculator

Using this tool for calculating your child tax credit for 2019 is straightforward. Follow these steps for an accurate estimation:

  1. Enter Your MAGI: Input your 2019 Modified Adjusted Gross Income into the first field. This is the primary value used for the income test. The unit is automatically set to US Dollars.
  2. Enter Number of Children: Provide the number of children who qualified for the credit in 2019. A child must have been under 17 at the end of the year.
  3. Select Filing Status: Choose your filing status from the dropdown menu. The income thresholds are different for Married Filing Jointly versus other statuses.
  4. Interpret the Results: The calculator instantly displays your final estimated credit. You can also view the intermediate values to understand how the income phase-out affected your potential credit. The bar chart provides a visual comparison.

Understanding your filing status explained in our detailed guide can also help ensure you select the correct option.

Key Factors That Affect the 2019 Child Tax Credit

Several critical factors determine your eligibility and the final amount of your 2019 CTC. Misunderstanding these can lead to an incorrect calculation.

  • Child’s Age: The child must have been under the age of 17 at the close of the 2019 tax year. A 17-year-old did not qualify for this specific credit in 2019.
  • Modified Adjusted Gross Income (MAGI): This is the most significant factor. As your MAGI rises above the $200,000 (single/HoH) or $400,000 (MFJ) thresholds, your credit is reduced.
  • Filing Status: The income threshold for the phase-out is doubled for those who are married and file a joint return.
  • Child’s Residency: The child must have lived with you for more than half of 2019.
  • Dependent Status: You must claim the child as a dependent on your tax return. The child cannot provide more than half of their own financial support.
  • Social Security Number: The child must have a valid Social Security Number (SSN) to be claimed for the Child Tax Credit. An ITIN is not sufficient for the CTC.

Frequently Asked Questions (FAQ)

What were the income limits for the full 2019 Child Tax Credit?

To claim the full $2,000 credit per child, your 2019 Modified Adjusted Gross Income (MAGI) had to be at or below $200,000 for Single, Head of Household, and Married Filing Separately filers, or $400,000 for Married Filing Jointly filers.

How much was the credit worth in 2019?

The credit was worth a maximum of $2,000 per qualifying child.

What if my child turned 17 during 2019?

If your child turned 17 at any point during 2019, they were not eligible for the Child Tax Credit for that year. They must have been *under* 17 on December 31, 2019.

Was the 2019 Child Tax Credit refundable?

Yes, it was partially refundable through the Additional Child Tax Credit (ACTC). If the credit was more than your tax liability, you could receive up to $1,400 per child as a refund, provided you had at least $2,500 in earned income. This calculator focuses on the primary credit calculation, not the refundable portion.

Is the calculation the same for the 2020 tax year?

Yes, the rules for the 2020 Child Tax Credit were the same as in 2019 regarding the credit amount and income phase-outs. The major changes to the credit occurred in 2021.

Can I still file or amend a 2019 tax return to claim this credit?

The deadline to claim a refund for the 2019 tax year was in July 2023. However, you may still need this calculation if you are responding to an IRS notice or for other record-keeping purposes. See our guide on filing an amended tax return for more details.

Does this calculator handle the Credit for Other Dependents?

No, this tool is specifically for calculating your child tax credit using your 2019 information. The Credit for Other Dependents was a separate, non-refundable $500 credit for dependents who did not qualify for the CTC, such as children age 17 or older.

What if my income is very high?

The credit phases out completely once your income is high enough. For every $1,000 over the threshold, you lose $50 of credit. For a single filer with one child, the credit would fully phase out at a MAGI of $240,000. Check out our Earned Income Tax Credit calculator if your income is lower.

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