Montana DEQ Septic System Loan Program

Montana Department of Environmental Quality

Available Home Repair

About This Program

Montana DEQ Septic System Loan Program is available to homeowners in Miles City, MT.

Low-interest loans for Montana homeowners to repair or replace failing on-site wastewater treatment systems (septic systems). Available for owner-occupied primary residences with documented system failures. Interest rate fixed at 3% with terms up to 10 years.

Loan at 3% interest for septic system repair or replacement

Official source site checked live on 2026-06-22.

Data last verified 2026-06-09. How we verify our data.

In Miles City, MT, you can combine this program with other local help to cut your cost:

Key Details

  • Low-interest loan up to $25,000
  • 3% fixed interest rate, 10-year terms
  • For failing septic system repair/replacement
  • Owner-occupied primary residence required
  • No income restrictions

How to Apply

Get free help applying Visit Official Program Page Track this program

(406) 444-5546

A grant-savvy contractor in Miles City, MT can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Miles City early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Applications accepted year-round

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

Email us about this program

Frequently asked questions

How much can Montana DEQ Septic System Loan Program provide in Miles City, MT?

Loan up to $25,000 at 3% interest.

Who qualifies for Montana DEQ Septic System Loan Program in Miles City?

Montana DEQ Septic System Loan Program is open to homeowners in Miles City, MT. It has no income limit.

How do I apply for Montana DEQ Septic System Loan Program in Miles City, MT?

Apply directly with Montana Department of Environmental Quality using the official program link on this page or call (406) 444-5546. There is no middleman and no fee.

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse Miles City, MT contractors

Find More Programs in Miles City, MT

This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.

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