Paying 1099 Contractors in Indiana: Federal Rules, State Requirements, and the ABC Test

Federal 1099-NEC requirements: the basics

Any Indiana employer who pays a qualifying contractor $600 or more during a calendar year must file a 1099-NEC (Nonemployee Compensation) with the IRS and furnish a copy to the contractor. The $600 threshold is cumulative — six payments of $100 each trigger it the same as a single $600 payment.

The filing rule applies to individuals, sole proprietors, single-member LLCs, and partnerships. It generally does not apply to C-corporations or S-corporations — but confirm the contractor's entity type via their W-9 before assuming an exemption.

• Deadline: January 31 — both furnish to contractor AND file with IRS
• Threshold: $600 cumulative per contractor per calendar year
• Required before first payment: Signed W-9 with legal name and TIN
• Backup withholding: 24% if contractor refuses to provide W-9

Indiana state filing requirements for 1099s

Indiana requires employers to file 1099s with the Indiana Department of Revenue when Indiana income tax was withheld from the payments. The state deadline and electronic filing thresholds may differ from federal requirements. Employers with state withholding on contractor payments should confirm current Indiana DOR requirements, as state rules are updated periodically and do not always track federal changes.

For most Indiana employers paying contractors who have not had state income tax withheld, the primary compliance focus for 1099 purposes is the federal 1099-NEC filing. The larger state-level compliance concern is the unemployment insurance classification question — which is separate from the 1099 filing and is enforced by the DWD, not the DOR.

Indiana's ABC test: why it matters for 1099 contractors

Filing a 1099-NEC does not protect Indiana employers from a Department of Workforce Development reclassification finding. The IRS and Indiana DWD apply different classification standards, and a 1099 filing does not satisfy the DWD's ABC test.

Under Indiana's ABC test, a worker is presumed to be an employee for UI purposes unless the employer can satisfy all three conditions:

• A: The worker is free from direction and control in performing the work — both under the contract and in practice.
• B: The work is performed outside your usual course of business, or outside all of your places of business.
• C: The worker is customarily engaged in an independently established trade or business of the same nature as the services provided.

A contractor who passes the IRS test can still fail the Indiana ABC test. A worker who receives a 1099-NEC can still be found to be an employee for UI purposes and trigger back UI tax liability for the employer.

What to collect from every Indiana contractor before the first payment

Indiana employers need documentation that addresses both the federal 1099-NEC requirements and the state ABC test. The minimum documentation package for every contractor relationship:

• Signed W-9. Collect before the first payment — not at year-end. The W-9 gives you the contractor's legal name, tax classification, address, and TIN. You need it to prepare the 1099-NEC. Auditors expect it to predate the engagement.
• Written contractor agreement. Addresses ABC Part A and Part B. The agreement should specify deliverables (not hours), confirm that the contractor controls their own methods, and state that no employment relationship is created. A verbal understanding is not documentation.
• Independence documentation. Addresses ABC Part C. Collect evidence that the contractor has an independently established business: EIN, business license, Certificate of Insurance, website, evidence of other clients, or Secretary of State registration. The more comprehensive this evidence, the stronger the Part C defense.
• Invoices for each payment. Contractor payments should be made against invoices, not on a payroll schedule. Invoices link each payment to a specific deliverable — which supports the independence argument and provides an audit trail.

The January 31 deadline and how to prepare

January 31 is the hard deadline for both furnishing 1099-NEC copies to contractors and filing with the IRS. Indiana employers who scramble in January typically have one of three problems:

• W-9s were never collected or are missing for contractors who crossed $600
• Payments weren't tracked by contractor, so totals aren't known until year-end
• The contractor's legal name or TIN on the W-9 doesn't match their records — triggering a B-Notice

The fix for all three is the same: make W-9 collection part of contractor onboarding, track cumulative payments by contractor throughout the year, and verify name/TIN matching on every W-9 when you collect it — not when you're preparing to file.

Indiana-specific risk factors to monitor

Several patterns in Indiana contractor relationships increase the risk of a DWD reclassification finding — even when federal 1099 treatment is correct:

• Contractors who perform the same functions as your direct employees (Part B risk)
• Contractors who work exclusively for you with no evidence of other clients (Part C risk)
• Payment patterns that mirror employee payroll — regular, fixed amounts without corresponding invoices (Part A risk)
• Contractors who work at your premises, using your tools and equipment
• Relationships without written agreements, forcing you to rely on verbal understanding during an audit

None of these factors automatically creates a finding — but each one requires stronger offsetting documentation. The more of these characteristics a relationship has, the more important it is to have thorough independence documentation before any audit notice.