Do I Need to Report My Child’s 1099-INT on My Return?

You only need to put your child’s 1099-INT on your own tax return if their total unearned income for 2026 is more than $1,350, and even then only if you choose to. Below that amount, no one files anything. Above it, you have two options: attach Form 8814 and include the interest on your Form 1040, or have your child file their own return. Reporting your child’s 1099-INT on your tax return is the simpler path, but it can quietly raise your tax bill by pushing up your adjusted gross income.

When Nobody Has to File Anything

A dependent child whose only income is interest does not need to file a return, and you do not need to report the interest on yours, as long as the total stays at or below $1,350 for the 2026 tax year.¹ The bank still sends the 1099-INT once interest reaches $10, and the IRS receives its copy, but no return is required.² Keep the form with your records and move on.

Most parents with a child’s savings account land here. At a 4% rate, a balance would need to exceed roughly $33,750 before the interest crosses $1,350. If your child’s account is smaller than that, you are done.

When the Interest Triggers a Filing

Once a dependent child’s unearned income passes $1,350, someone has to file. That figure is the dependent’s standard deduction against unearned income for 2026, and it covers interest, dividends, and capital gain distributions together.¹ A child who also has a job faces a different test: they must file if gross income exceeds the greater of $1,350 or their earned income plus $450.³

When a filing is required, you choose between two paths. You can report the child’s interest and dividends on your own Form 1040 by attaching Form 8814, or the child can file a separate Form 1040. Neither is universally better. The right answer depends on how much income there is, whether any of it is qualified dividends or long-term capital gains, and whether your own return is near a phaseout for any credit or deduction.

Putting the Interest on Your Return: Form 8814

To use Form 8814 and report the child’s income on your own return, all of the following must be true:⁴

The child’s only income was interest, ordinary dividends, and capital gain distributions. No wages, no self-employment income.
Gross income was more than $1,350 but less than $13,500.
No federal income tax was withheld from the child’s income and no estimated payments were made in the child’s name.
The child is not filing a joint return.

File a separate Form 8814 for each child whose income you include. If any child had even a small amount of earned income from a summer job, that child cannot use Form 8814 and has to file separately.

The tax on Form 8814 works in three layers. The first $1,350 of the child’s income is not taxed. The next $1,350, meaning income from $1,350 to $2,700, is taxed at a flat 10% rate no matter what bracket you are in. Anything above $2,700 is added to your taxable income and taxed at your marginal rate.¹

The Hidden Cost of Electing Form 8814

Adding your child’s income to your return raises your adjusted gross income, and a higher AGI can shrink or eliminate benefits you would otherwise claim. The IRS instructions for Form 8814 warn that the election may reduce your eligibility for the child tax credit, the earned income credit, education credits, the student loan interest deduction, the traditional IRA contribution deduction, the child and dependent care credit, and medical expense deductions that use a percentage-of-AGI floor.⁵

There is a second cost when the child’s income includes qualified dividends or capital gain distributions. Form 8814 taxes the child’s income between $1,350 and $2,700 at 10%, but on a separate child’s return those qualified dividends and capital gains can qualify for the 0% preferential rate. The IRS estimates the difference can cost up to $135 in extra tax.⁵

For a child with a couple hundred dollars of plain savings interest, Form 8814 is usually fine and much simpler. If the amount is several thousand dollars, or your own AGI is near a phaseout threshold, run the numbers both ways before you commit.

Filing a Separate Return for the Child

A separate return is mandatory when the child’s income is $13,500 or more, when the child has any earned income, when the income includes anything beyond interest and dividends, or when estimated tax payments or backup withholding hit the child’s account.⁴

Even when Form 8814 is available, some parents file a separate return for the child anyway. Doing so keeps the child’s income off your AGI and protects any credits or deductions that would phase out if it were added in.

How the Kiddie Tax Structures the Math

Whichever path you take, the underlying rate structure is the same. It exists to stop parents from shifting investment income into a child’s lower bracket, and the IRS calls it the kiddie tax. It applies to children under 18, children who are 18 and do not earn more than half their own support, and full-time students aged 19 through 23 who do not earn more than half their own support.⁶

For 2026, the child’s unearned income breaks into three tiers:¹

The first $1,350 is covered by the dependent standard deduction and is not taxed.
The next $1,350, from $1,350 to $2,700, is taxed at the child’s own rate, typically 10%.
Everything above $2,700 is taxed at the parent’s marginal rate.

On a separate child’s return, Form 8615 is the mechanism that applies the parent’s rate to income above $2,700.⁷ Whoever prepares the child’s return will need the parent’s taxable income and filing status. That information is used only to set the rate and does not change the parent’s own tax bill.

Whose Rate Applies When Parents Don’t File Jointly

When the parents file a joint return, that joint return’s income sets the rate. Otherwise:⁷

Married filing separately: the return of the parent with the higher taxable income.
Divorced or legally separated: the custodial parent’s return, meaning the parent who had the child for the greater part of the year, if that parent has not remarried.
Never married and living together: the parent with the higher taxable income.
Never married and living apart: the custodial parent’s return, same as for divorced parents.

If a custodial parent has remarried and files jointly with a new spouse, that joint return, including the stepparent, is what sets the rate.

What Happens if Nobody Reports It

If the child’s interest exceeds $1,350 and no return is filed, the IRS can assess penalties on the unpaid tax plus interest on the balance. It does not matter whether the income belonged on your return or the child’s. Because the bank sends the 1099-INT to the IRS as well as to you, missing interest is one of the easiest mismatches for automated matching to flag.

Don’t Forget the State Return

Federal rules only settle half of it. Most states with an income tax have their own filing thresholds for dependents, and some sit well below the federal $1,350. Check your state’s department of revenue for the specific number; your child may owe a state return even in a year when nothing is due federally.

1
Internal Revenue Service. Revenue Procedure 2025-32
2
Internal Revenue Service. About Form 1099-INT, Interest Income
3
Internal Revenue Service. Publication 501 – Dependents, Standard Deduction, and Filing Information
4
Internal Revenue Service. Instructions for Form 8814 – Parents’ Election To Report Child’s Interest and Dividends
5
Internal Revenue Service. Instructions for Form 8814 – Parents’ Election To Report Child’s Interest and Dividends
6
Internal Revenue Service. Topic No. 553, Tax on a Child’s Investment and Other Unearned Income (Kiddie Tax)
7
Internal Revenue Service. Instructions for Form 8615 – Tax for Certain Children Who Have Unearned Income