Michigan taxpayers who missed the April 18 state individual income tax filing deadline last week have options for filing a late return, according to the Michigan Department of Treasury.

The Treasury recommends past-due tax filers to consider:

Filing a return to claim an outstanding refund. Taxpayers risk losing their state income tax refund if they don’t file a return within four years from the due date of the original return. Go to www.michigan.gov/mifastfile to learn more about e-filing.

Filing a return to avoid interest and penalties. File past due returns and pay now to limit interest charges and late payment penalties. Failure to pay could affect a taxpayer’s credit score and the ability to obtain loans.

Paying as much tax as possible. If taxpayers owe outstanding taxes and can’t pay in full, they should pay as much as they can when they file their tax returns. Payments can be made using Michigan’s e-Payments service. When mailing checks, carefully follow tax form instructions.

Treasury will work with taxpayers who cannot pay the full amount of tax they owe.

Taxpayers who receive a final tax bill and are unable to pay the entire amount owed can consider:

Requesting a penalty waiver. Penalty may be waived on an assessment if a taxpayer can show reasonable cause for their failure to pay on time. Reasonable cause includes serious illness, a fire or natural disaster, or criminal acts against you. Documentation should be submitted to substantiate the reason for a penalty waiver request.

Making monthly payments through an installment agreement. For Installment Agreements lasting for 48 months or less, taxpayers must complete, sign and return the Installment Agreement (Form 990). The agreement requires a proposed payment amount that will be reviewed for approval by Treasury.

Filing an Offer in Compromise application. An Offer in Compromise is a request by a taxpayer for the Michigan Department of Treasury to compromise an assessed tax liability for less than the full amount. For more information or an application, visit www.michigan.gov/oic.

The last three options for final tax bills should be filed separately from the state income tax return.

Taxpayers with questions about their state income taxes are encouraged to use Treasury eServices. The online platform enables taxpayers to ask state income tax-related questions when convenient and avoids the extended wait times for calls this time of year.

To get started with Treasury eServices, go to www.michigan.gov/incometax and click on “Access eServices.”