The Indiana Department of Revenue will start accepting filings for 2021 individual income tax returns Monday in concert with the Internal Revenue Service.

Hoosiers have until April 18 to file both state and federal 2021 tax returns and pay any taxes owed.

The department of revenue encourages customers not to file their state tax returns prior to Monday or before they have gathered all necessary documentation. Attempting to file without all documents can delay the process and ultimately postpone any refund a customer may receive.

For information on what documents are needed to file a return, visit dor.in.gov.

The state also asks customers to utilize electronic filing, online payment and direct deposit to improve the quality and speed of return and refund processing.

Eligible taxpayers may be able to file their federal and state taxes for free through the INfreefile program. Participating vendors and eligibility requirements are available at freefile.dor.in.gov. Information on individual income tax filing, including FAQs, tips and resources for free and low-cost tax preparation help, are available at dor.in.gov/individual-income-taxes.

Customers who call the department of revenue for assistance can expect longer than normal wait times. The answer to most common tax questions can be found online through dor.in.gov.

Customers who wish to contact the department directly should use the secure messaging portal in the new Indiana Taxpayer Information Management Engine at intime.dor.in.gov for the most efficient service.