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Indiana

Indiana state tax filings.

Which agencies Indiana uses, which forms they take, and what Indiana does differently. Every entry carries the date it was checked against the agency's own material.

Who you deal with in Indiana

Indiana Department of Revenue

Sales tax and other business trust tax accounts, including withholding, on one application

INTIME

Indiana Department of Workforce Development

Unemployment insurance employer account

Uplink Employer Self Service

2 separate agencies, on 2 separate systems. Doing something with one does nothing to the others.

What Indiana does differently

  • Estimated tax bills on a dead business. Indiana states plainly that if the account is not closed on INTIME or the BC-100 is not filed, the Department of Revenue may continue to send bills for estimated taxes. Most states send a notice asking for a return. Indiana sends a bill.
  • Estimated bills, not reminders. Indiana states that if the account is not closed on INTIME and the BC-100 is not filed, the Department of Revenue may continue to send bills for estimated taxes. Most states ask for a return. Indiana assesses one.
  • Register only for what you need. Indiana issues bills for estimated taxes on accounts left open, not just reminders. A tax type opened speculatively becomes a liability that has to be actively closed rather than quietly abandoned.
  • An unused account is not harmless here. Most states send a notice asking for a return. Indiana may assess estimated tax, which then has to be resolved by filing the actual returns rather than ignored.

Filings we handle in Indiana

Payroll tax account closure in Indiana

Leave an Indiana account open and Revenue keeps billing estimated tax on a business with no income. BC-100 plus State Form 46800 within 30 days. We file both.

2 agencies · Verified 2026-08-03

Payroll tax registration in Indiana

Form BT-1 with Revenue for withholding, Uplink with Workforce Development for unemployment. Register properly: Indiana bills estimated tax on open accounts.

2 agencies · Verified 2026-08-03

Sales tax registration in Indiana

Form BT-1 registers Indiana sales tax. Register narrowly, because Indiana sends bills for estimated taxes on accounts left open rather than reminders.

1 agency · Verified 2026-08-03

You keep the client. We never email them.