Form 1099-INT State Filing Requirements: What Payers Need to Check

Form 1099-INT reports interest income paid during the calendar year.  A payer may need to file it when interest reaches the federal reporting threshold, when backup withholding applies, or when state rules require filing because state tax is withheld.

Form 1099-INT state filing requirements can vary by state, and filing with the IRS does not always complete the state reporting step.

Some states receive 1099-INT records through the Combined Federal/State Filing Program (CF/SF). Others may still require direct filing, especially when state income tax was withheld or when the state has its own reporting rules.

Continue reading to understand what payers should check before filing and how to avoid missed state reporting steps.

Do State Filing Requirements Matter for Form 1099-INT?

State filing requirements matter for Form 1099-INT because states may have their own filing rules and deadlines. Filing Form 1099-INT with the IRS alone does not guarantee that your state compliance is complete. Payers must determine whether the state accepts the Combined Federal/State Filing Program or requires direct filing.

Why State Filing Matters

State filing of Form 1099-INT helps ensure that interest income is reported accurately and taxed correctly under state law.

Here are a few reasons why state filing matters:

• Reduces state income mismatches: When Form 1099-INT is shared through the Combined Federal/State Filing Program, participating states receive the interest income details from the IRS. This helps the state compare the information return with the taxpayer’s state return.
• Helps states verify tax owed: Form 1099-INT gives state tax agencies a record of reported interest income. If the taxpayer leaves out income or reports a lower amount, the state may use that information to review the return and assess any tax, penalties, or interest due.
• Helps match state withholding records: When state tax is withheld, Form 1099-INT gives the state a record to compare against the withholding amount reported by the payer.
• Keeps state filing requirements on track: State reporting rules can vary by jurisdiction. Following them helps payers avoid missed state filings, correction work, and possible penalties.

How Many States Require 1099-INT Filing?

Form 1099-INT filing is determined by filing method and not by state count alone. There are three general categories of state filing obligations:

• Direct state filing
• CF/SF filing that satisfies the state requirement
• No state filing required

(No state filing is required when the state does not require Form 1099-INT for that payment.)

The direct state filing requirements differ by state and fact pattern. For example:

• Idaho accepts CF/SF for Form 1099-INT, but requires Form 967 to report Idaho withholding if Idaho tax was withheld
• Mississippi requires 1099s submitted to the IRS to also be filed with the Mississippi Department of Revenue
• New Jersey requires Form 1099 reporting for payers of interest and dividends when $1,000 or more is paid or credited, or when any New Jersey income tax was withheld

Ultimately, payers need to review state-specific rules and withholding requirements for the filing situation.

CF/SF vs. Direct State Filing

Check whether the state accepts CF/SF for Form 1099-INT. If not, analyze whether direct filing is required.

How State Withholding and Thresholds Affect 1099-INT State Filing

Form 1099-INT filing is required at the federal level if any of the following apply:

• Interest income is $10 or more
• Interest paid in the course of a trade or business by a nonfinancial institution is $2,000 or more
• Federal backup withholding applies or foreign tax on interest was withheld and paid, regardless of the payment amount

Payers must also understand state rules and not rely only on the federal threshold. State tax rules determine whether Form 1099-INT must be filed at the state level.

State tax authorities use information returns to match state tax withheld on Form 1099-INT with the withholding amounts reported and remitted by payers. As a result, a Form 1099-INT that includes state withholding information may need to be filed with the state regardless of whether the interest payment exceeds the federal reporting threshold.

For example, a payer reports only $8 of interest income to a Wisconsin resident and withholds Wisconsin income tax from the payment. Although the interest amount is below the federal $10 reporting threshold, Wisconsin requires the information return when Wisconsin tax has been withheld.

Compliance point: Review federal thresholds and state withholding rules to determine whether state filing is required.

Real-Life State Filing Scenarios

FAQs

Do all states require Form 1099-INT filing?

No, it depends on the state and the specific Form 1099-INT record.

What is the CF/SF program for Form 1099-INT?

CF/SF stands for Combined Federal/State Filing. It allows eligible information returns filed with the IRS to be forwarded to participating state tax agencies.

Does CF/SF always satisfy the state filing requirement?

No, CF/SF does not always satisfy the requirement because states may require direct filing when state tax is withheld or when state rules differ from IRS rules.

Does state withholding matter, even if the interest is small?

Yes, it can create a state filing obligation, especially when state tax is withheld.

How should multi-state Form 1099-INT reporting be handled?

Each state should be reviewed separately. Amounts should be allocated correctly to avoid duplication and/or overstatement.