Many filers struggle with it. Eligibility turns on dependency, age, relationship, residence, taxpayer identification numbers, income and filing status, and the schedule has to agree with Form 1040. The IRS also estimates TIGTA's improper payment figures for the Additional Child Tax Credit at $4.5 billion, or 13.6%, based on tax-year 2023 returns.
This guide covers when you need the schedule, what to gather and how to complete each part. Figures are for tax year 2025. Always check the current IRS form and instructions before filing.
Key Takeaways
- Schedule 8812 calculates the Child Tax Credit, Credit for Other Dependents and Additional Child Tax Credit.
- For 2025, the maximum CTC is $2,200 per child, and the refundable portion is capped at $1,700.
- Verify every dependent's identification number before entering it.
- Complete Form 1040 first, then work through the schedule in order.
When Should You Use Schedule 8812?
Use it when you claim the Child Tax Credit (CTC), the Credit for Other Dependents (ODC), or the refundable Additional Child Tax Credit (ACTC) on Form 1040, 1040-SR or 1040-NR. Don't attach it just because dependents appear on your return.
Qualifying-child tests for the CTC
| Test | Requirement |
|---|---|
| Age | Under 17 at year-end |
| Relationship | Child, stepchild, eligible foster child, sibling, or a descendant of one of these |
| Support | Child did not provide more than half of their own support |
| Dependency | Claimed as a dependent on your return |
| Residency | Lived with you more than half the year, with exceptions |
| Citizenship | U.S. citizen, national or resident alien |
| Child SSN | Employment-valid SSN issued by the return due date, including extensions |
Since 2025, the taxpayer (or at least one joint filer) also needs an employment-valid SSN. The other spouse needs an SSN or ITIN.
Credit for Other Dependents
The ODC is worth $500 per dependent and is nonrefundable. It covers qualifying children aged 17 or older, and dependents who lack the SSN needed for the CTC. An ITIN or ATIN works for the ODC but not for the CTC or ACTC.
Situations that need extra review
- Shared custody: the parent with more nights is generally the custodial parent. If nights are equal, the higher AGI wins. A Form 8332 release can transfer the claim.
- Child born or died during the year: residency is met if the child lived with you more than half the time they were alive.
- Temporary absences: school, illness, business, military service or detention can count as time at home.
- Form 2555 filers: you cannot claim the ACTC. This matters for U.S. taxpayers living in Australia and other countries abroad.
- Puerto Rico residents: bona fide residents can qualify for the ACTC with just one qualifying child.
- Form 1040-NR filers: eligibility is restricted, and filing 1040-NR alone doesn't establish it.
What You Need Before Using Schedule 8812
Start with the 2025 Form 1040, the 2025 Schedule 8812 and its instructions. Confirm whether you're filing 1040, 1040-SR or 1040-NR.
Dependent and taxpayer details
- Names, relationships, dates of birth and months of residence
- Valid SSNs, ITINs or ATINs for each person listed
- Records for custody, adoption or foster placement, where relevant (school, medical, landlord or social-service statements all help)
- Form 8332 if a noncustodial parent claims the child
Income and return data
- Form 1040 line 11a (adjusted gross income)
- Wage, self-employment and nontaxable combat pay records (W-2 box 12, code Q)
- Form 2555 lines 45 and 50, which enter Schedule 8812 line 2b
- Form 4563 line 15, which enters line 2c
- Credit Limit Worksheets A and B, and the Earned Income worksheet
Do you also need Form 8862?
Form 8862 is separate from Schedule 8812. You generally need it if the IRS reduced or disallowed the CTC, ACTC or ODC for a year after 2015 for a reason other than a math or clerical error, and you now qualify again.
Penalty bans can apply: 2 years after a finding of reckless or intentional disregard, and 10 years after fraud. Filing Form 8862 doesn't override an active ban.
How to Use Schedule 8812 Step-by-Step
Setup and preparation
Use the 2025 schedule. A 2024 version has different CTC amounts, and the 2026 instructions are still a draft marked "Do not file draft forms." Complete the relevant Form 1040 lines first so your figures match.
2025 benchmarks
| Item | 2025 figure |
|---|---|
| Maximum CTC per child | $2,200 (up from $2,000) |
| ODC per dependent | $500 |
| Maximum ACTC per child | $1,700 |
| Phaseout threshold, joint | $400,000 modified AGI |
| Phaseout threshold, all others | $200,000 modified AGI |
| ACTC earned-income formula | 15% of earned income above $2,500 |
The ACTC sits inside the total CTC. It is not added on top.
Part I: the credit calculation
- Start with return line 11a. Add excluded Puerto Rico income and specified Form 2555 and 4563 amounts to get modified AGI (lines 1-3).
- Multiply qualifying children by $2,200 and other dependents by $500 (lines 4-8).
- Subtract your threshold, round any excess up to the next $1,000, and multiply by 5%. Reduce the tentative credit by that amount (lines 9-12).
- Use Credit Limit Worksheet A for line 13. Line 14 is the smaller of lines 12 and 13. Carry it to Form 1040 line 19.
If the phaseout eliminates the credit at line 12, stop there.
Part II-A: the refundable portion
- Determine the unused credit and cap it at qualifying children × $1,700 (lines 16-17). Line 15 is reserved.
- Enter earned income and any nontaxable combat pay, then apply 15% above $2,500 (lines 18-20).
Part II-B: special cases only
Part II-B applies if you have three or more qualifying children (line 16b of $5,100 or more) or you're a bona fide Puerto Rico resident. It uses eligible payroll and self-employment tax amounts (lines 21-26). Ordinary filers skip it.
Reconcile and finish
Check dependent counts, ID numbers and income against Form 1040. Line 27 is your final ACTC, limited by line 17. Carry it to Form 1040 line 28.
Attach the schedule to your return. An e-filed return doesn't need a mailed copy. Keep supporting documents, and attach special items such as a custody release.
Common Use and Best Practices
Schedule 8812 appears on returns for employees, self-employed filers, guardians and parents with custody arrangements. Tax software usually calculates it, but review the inputs yourself. The IRS lists these common errors:
- Incorrect age
- Missing SSN or TIN
- Unmet dependency rules
- Duplicate claims
Best practices
- Use the current-year IRS form and instructions before entering any figure.
- Reconcile names, SSNs or ITINs, filing status, residency, custody facts and income before finalising.
- Check whether a prior disallowance requires Form 8862.
- Retain records for unusual or disputed claims.
Paid preparers face their own duties. They must complete Form 8867, investigate inconsistent information and keep records for 3 years.
Professional review is worth it for foreign income, multiple children, shared custody, Puerto Rico residency, amended returns or IRS notices. VJM Global's international taxation practice covers U.S. tax compliance, and its team of U.S.-compliant tax professionals also prepares Form 1040 and 1040-NR returns.
Conclusion
Schedule 8812 is manageable if you confirm eligibility, gather documents, complete Form 1040 first, work through the parts in order and carry the results back accurately.
Verify the latest IRS instructions before filing. Get professional help if you have special circumstances or a prior disallowance.
Frequently Asked Questions
What is a 1040 U.S. individual income tax return?
Form 1040 is the main form U.S. taxpayers use to file an annual federal income tax return. Schedules such as 8812 attach to it to report specific credits.
Who qualifies for the Child Tax Credit on Schedule 8812?
The child must be under 17, your dependent, related to you, living with you over half the year, and must have an SSN valid for employment. Income limits and filing status also apply; see the 2025 instructions.
What is the maximum refundable Child Tax Credit?
For 2025 the maximum ACTC is $1,700 per child, within the total $2,200 CTC. Your actual amount depends on earned income and unused credit.
What is the Credit for Other Dependents?
It is a separate $500 nonrefundable credit for dependents who don't qualify for the CTC, such as children 17 or older or those with an ITIN or ATIN. An ODC-only claim cannot produce an ACTC.
Why would I need to file Form 8862?
You generally need it when the IRS previously reduced or disallowed the CTC, ACTC or ODC for reasons other than a math error. It is separate from Schedule 8812.
What qualifies as earned income?
Earned income includes wages, certain business and farm income, and nontaxable combat pay. Unemployment benefits, interest, dividends, pensions, and Social Security do not count.
