⚠️ Important Notice: Refund Claim Deadline Has Passed
The deadline to claim a refund on a 2020 federal tax return has expired. Under IRC Section 6511, refund claims must be filed within three years of the original filing date or two years from the date taxes were paid, whichever is later. For tax year 2020, that deadline was April 15, 2024 (or October 15, 2024 for taxpayers who filed with an extension). The IRS will not issue refunds on TY2020 returns filed after these dates.
If you are reviewing this form for research or recordkeeping purposes, the general filing context below may be useful as background reference. However, please note that some details on this page — particularly references to the form name — have been updated for accuracy. If you believe a special exception may apply to your situation, please consult a qualified tax professional. (IRS Topic No. 308)
What Form 1040 (Schedule 8812) (2020) Is For
Form 1040 (Schedule 8812) helps families determine the refundable credit amount associated with qualifying children when completing their tax return. Families verify their earnings, gross income, and age requirements to determine whether they are eligible to claim the Additional Child Tax Credit. Parents review each required detail to ensure every child is claimed as a dependent and meets IRS rules.
The form guides married individuals filing jointly and married individuals filing separately through each step that affects eligibility for the credit. Parents verify whether each qualifying child met the identification, residency, and support standards to receive the correct amount. Families review every entry carefully to support accurate filing.
Note: Form 1040A and Form 1040EZ were discontinued after the tax year 2017. For 2020 and all subsequent years, taxpayers use Form 1040 as the standard individual income tax return. Any prior references on this page to "Form 1040A (2020)" reflect an outdated form name and have been corrected accordingly.
When You Would Have Used Form 1040 (Schedule 8812) (2020)
Families used Schedule 8812 when preparing a return for the 2020 tax year to confirm eligibility for the Additional Child Tax Credit. Taxpayers could claim the credit if their income and filing details met the IRS rules for qualifying dependents.
Please note: The deadline to file a TY2020 return and receive a refund has now passed. Under IRC Section 6511, the three-year window for refund claims on 2020 returns closed on April 15, 2024. Taxpayers who filed for an extension had until October 15, 2024. Filing a TY2020 return after these dates will not produce a refund. For guidance on what options may still be available, contact a tax professional. (IRS Topic No. 308)
Key Rules or Details for 2020
Taxpayers should review the core IRS rules that apply to each qualifying child for the 2020 tax year. A qualifying child must have met age requirements, residency rules, and support standards. Parents also confirm that the child held a valid Social Security number for filing purposes.
Taxpayers should examine restrictions that affect eligibility for the Additional Child Tax Credit. Some filers could not claim the credit when they used the foreign earned income exclusion. Families should also note that the American Rescue Plan Act increased credit amounts for qualifying dependents beginning in tax year 2021 — not tax year 2020. For 2020 returns, the pre-ARP rules and credit limits apply.
Parents may have been eligible for the credit if their gross income met the IRS thresholds for the 2020 tax return. Each qualifying child must have satisfied the identification, residency, and relationship tests. Taxpayers reviewing past filings should carefully check every requirement to understand how the credit was calculated.
Step-by-Step (High Level)
The steps below describe how Schedule 8812 was completed for a 2020 tax return. This information is provided for reference and recordkeeping purposes. The refund claim deadline for TY2020 has passed for most taxpayers.
You review each part of Schedule 8812 to confirm the correct credit calculation. You check earned income requirements to align your filing with IRS standards. You carefully navigate every step to ensure your tax return is accurate.
- You can check earned income using the IRS table provided in the official instructions, which guides the correct calculation of the credit.
- You confirm that the child meets the age, relationship, and identification requirements because these rules determine whether the child qualifies for the credit.
- You enter each Social Security Number on Form 1040 and verify every number so the IRS can match the information to official records.
- You review bank account information before you file the tax return so that the IRS can direct any refund to the correct account. Note that the deadline to receive a refund on a TY2020 return has expired for most filers under IRC Section 6511.
- You confirm whether you filed married filing jointly or another filing status because your filing category affects the credit calculation.
- You complete each step to protect the accuracy of your calculation. You review each requirement to prevent processing issues at the IRS. You rely on clear steps to support a smoother filing experience.
Common Mistakes and How to Avoid Them
Taxpayers reviewing past returns should check Form 1040 for frequent errors that may have affected the accuracy of the Schedule 8812 calculation.
- Incorrect Social Security Entries: Taxpayers can identify discrepancies by verifying every number against SSA records.
- Incorrect Income Figures: Filers can identify calculation errors by comparing earnings with accurate wage statements and worksheets.
- Support Rule Errors: Parents can review whether the child met the required support thresholds for the tax year.
- Residency Rule Mistakes: Families can verify their eligibility by confirming that the child lived in their home for the required half-year period.
- Filing Status Issues: Taxpayers can review whether the correct category — such as married filing jointly or head of household — was selected for that year.
For help understanding federal tax forms, schedules, and filing requirements, refer to our IRS Form Help Center.
What Happens After You File
The IRS reviews information to confirm whether a family was eligible for the Additional Child Tax Credit. Agents verify the accuracy of each Social Security Number, identity detail, bank account entry, and earnings figure. Processing times may vary when volumes increase or when mid-season delays affect case flow.
The agency uses code references in notices to explain why adjustments were made to a tax return. If the IRS identifies issues that require review, it may issue corrected credit amounts where applicable. If you need help understanding an IRS notice related to a prior-year filing, our team is here to guide you through your options.
If you have received an IRS notice about your 2020 return or believe you may still have an unresolved tax issue, do not wait. To learn how to request relief from IRS penalties and understand eligibility requirements, deadlines, and supporting documentation, visit our IRS Penalty Abatement resource.
Frequently Asked Questions
How do people know if they have qualifying children for the credit?
You verify whether each qualifying child met the age, residency, and support requirements for the tax year. You also confirm that every child had a valid Social Security Number before adding the information to Form 1040. Reviewing the rules helps you understand how the credit was calculated on your original return.
How does earned income affect the Additional Child Tax Credit?
You review your earned income to see whether your wages or self-employment amounts met IRS thresholds for 2020. You complete the Form 1040 worksheet to confirm the figures that influenced the credit amount. Understanding income levels helps clarify how the credit was calculated on a past filing.
What information should people check when reviewing Form 1040 with Schedule 8812?
You verify your Social Security Number, your qualifying child's details, and your bank information for accuracy. You confirm that your care arrangements and dependency claims supported your eligibility for the credit. Reviewing each entry carefully helps identify any discrepancies in a prior-year filing.
Why does the IRS require a qualifying child to meet several standards?
The IRS uses strict rules to protect taxpayers and ensure only eligible families receive the credit. You confirm that each qualifying child met the age, support, and residency requirements outlined in the instructions. Following these rules helps you understand whether your original return was prepared correctly.
Where can families learn more about Form 1040 and the credit?
Families can review the official IRS instructions for Form 1040 to learn about every rule in clear, easy-to-understand language. They can also find guidance about qualifying children and earned income requirements on IRS.gov. Note that the refund claim window for TY2020 has now closed for most taxpayers under IRC Section 6511. For more context on similar tax year filings, see our guides on 2021 Schedule 8812 and 2019 Schedule 8812.

