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Reviewed by: William McLee
Reviewed date:
January 15, 2026

What the New York Form CT-3-ATT (2013) Is For

New York Form CT-3-ATT (2013) is an attachment to Form CT-3 that certain corporations must file to report capital and income subject to specialized tax treatment under New York Tax Law Article 9-A. It applies when a corporation holds investment capital, owns qualifying subsidiaries, or meets narrow public utility criteria defined by state law.

The form categorizes capital and income differently, which are taxed at different rates from regular business income. By requiring these disclosures, New York ensures that corporations allocate their income and capital properly, based on the source, ownership structure, and statutory classifications.

When You’d Use New York Form CT-3-ATT

A corporation must use New York Form CT-3-ATT (2013) when filing Form CT-3 if it has investment capital, subsidiary capital, or utility-related transition property during the tax year. The form is mandatory whenever one or more CT-3-ATT schedules apply, even if the amounts involved are relatively small.

For calendar-year filers, the 2013 return was due on March 15, 2014. Fiscal-year filers follow the standard two-and-a-half-month deadline after the end of the year. Extensions apply to the entire return, but penalties and interest may still accrue if tax is underpaid.

Key Rules or Details for 2013

The New York Form CT-3-ATT (2013) has rules that only apply to the 2013 tax year and differ significantly from later changes to Article 9-A. When determining definitions, valuing things, and dividing them up, companies should use the 2013 instructions.

Schedule Overview

The CT-3-ATT schedules address different categories of capital and income.

  • Schedule B reports investment capital and investment income, including qualifying stocks, bonds, and similar securities.

  • Schedule C reports subsidiary capital and income from corporations in which the filer owns more than 50 percent of the voting stock.

  • Schedule D reports specific additions and subtractions related to qualified public utilities, transferees of transition property, and certain power producers.

Not every corporation completes every schedule, but each applicable schedule must be filed in full.

Filing Requirements

For the year 2013, filings are frequently impacted by several technical rules:

  • Cash cannot be divided into different categories; it must be fully categorized as either business capital or investment capital.

  • Direct beneficial ownership of voting stock, as opposed to indirect ownership through tiers, determines subsidiary status.

  • The amount of capital and income allotted to New York must be determined using issuer and subsidiary allocation percentages.

The 2013 form does not include provisions related to later federal stimulus programs or unemployment income exclusions, as those changes occurred in subsequent years.

Step-by-Step (High Level)

Step 1: Confirm Schedule Applicability

To find out which CT-3-ATT schedules you need to fill out for the tax year 2013, look at your investment holdings, subsidiary ownership, and any transition property activity reported under New York Tax Law Article 9-A.

Step 2: Compile Valuation and Liability Support

Get records of the value of securities and subsidiary interests every three months or as needed. You need to find proof that direct and indirect liabilities can be assigned to figure out net investment and subsidiary capital.

Step 3: Complete Schedule B for Investment Capital

To finish Schedule B, you need to report your investment capital and any income from those investments. Use the issuer allocation percentages to determine the amounts for New York, and then transfer the totals to the corresponding lines on Form CT-3.

Step 4: Complete Schedule C for Subsidiary Capital

Determine which subsidiaries have direct beneficial ownership of more than 50% of the voting stock to complete Schedule C. Ascertain the subsidiary capital values, apply the allocation percentages, and compute the subsidiary capital base tax.

Step 5: Review Schedule D Eligibility and Reconcile Totals

Use the 2013 transition property criteria to determine whether utilities, transferees, and qualified producers are eligible for Schedule D. Reconcile CT-3-ATT totals to Form CT-3 entries before filing.

Common Mistakes and How to Avoid Them

  • Reporting subsidiary stock as investment capital on Schedule B: Classify stock based on ownership and control rules so subsidiary interests are reported in the correct capital category.

  • Improperly splitting cash between investment and business capital: Apply one permitted cash treatment for the tax year and use it consistently across CT-3-ATT computations that reference money.

  • Omitting or estimating issuer allocation percentages without support: Obtain issuer-provided allocation data when required and retain documentation instead of using unsupported estimates.

  • Failing to allocate indirect liabilities using required proportional methods: Apply the necessary proportional allocation method and keep worksheets showing how each liability amount was attributed.

  • Completing Schedule D without meeting the statutory definition: Confirm Schedule D eligibility under the 2013 rules before applying those adjustments to avoid misreporting.

What Happens After You File

After filing Form CT-3 with the CT-3-ATT attachment, the New York Department of Taxation and Finance reviews the return and applies the reported figures to the corporation's tax account. The capital base and subsidiary capital base are two of the tax bases that are directly impacted by amounts from this form.

New York uses the highest applicable tax base, plus any subsidiary capital base tax owed, to figure out the final amount owed. Schedule C calculations are often scrutinized more closely during review because most credits can't be used to reduce the subsidiary capital tax. The Department may request documents such as ownership charts, brokerage statements, or allocation worksheets to verify the accuracy of the data if any issues are identified. Companies should retain supporting documents for at least six years after filing them.

FAQs

Who must file New York Form CT-3-ATT (2013)?

Any corporation filing Form CT-3 that has investment capital, subsidiary capital, or qualifying utility-related adjustments during the 2013 tax year must file this attachment.

Can a corporation file Form CT-4 instead if it has investment income?

A corporation with investment capital or investment income cannot use Form CT-4 and must file Form CT-3 with CT-3-ATT attached.

Do mutual funds and exchange-traded funds qualify as investment capital?

These securities generally qualify as investment capital if they are not held for sale to customers and are not considered subsidiary capital.

Is Schedule D required for corporations that only invest in utilities?

Schedule D applies only to corporations that are themselves qualified utilities or transferees of transition property, not passive investors.

Do penalties apply if CT-3-ATT is missing from an otherwise filed return?

Failure to include required attachments can result in penalties, interest, and processing delays even if Form CT-3 is filed on time.

How long should records supporting CT-3-ATT be retained?

Supporting documentation should be retained for at least six years after the return is filed, in case of an audit or review.

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