Grants and Tax Credits for Septic Systems in Quebec

Upgrading a septic system is a major step in protecting our environment. However, it is also a significant financial investment. Luckily, there are several loan and grant programs available to help homeowners finance the replacement of an outdated septic tank, cesspool, or drain field.

Quebec Provincial Support: The Tax Credit

In 2026, you can recover part of the cost of upgrading a residential septic system through a provincial program. This comes in the form of a refundable tax credit. It covers 20% of the work, excluding the first $2,500 of expenses. The maximum amount you can receive is $5,500. This program is available until March 31, 2027.

Eligibility Conditions (as of 2026):

• You must reside in Quebec on December 31 of the year you apply.

• You must sign an agreement before March 31, 2027, with a qualified contractor to work on an eligible residence (a home you own in Quebec that is your main place of residence).

• You must have paid the expenses during the year of the claim.

Full details of this program are available on the Revenu Québec website. If you still have questions, feel free to contact our Soluo experts.

Municipal Support: The Eco-Loan Program

This type of program is becoming more common in Quebec municipalities. It helps homeowners get financial support to replace or upgrade their septic systems.

In some cases, this aid covers up to 100% of the eligible costs. It is usually given as a loan that you pay back with interest through your municipal taxes.

Common Eligibility Conditions in 2026:

• Submit a written request for an isolated residence in a town that has an Eco-Loan program.

• Have applied for a permit from the municipality.

• Commit to doing the work based on the results of a professional soil test (characterization study).

• Hire a contractor who holds the proper licenses from the Régie du bâtiment du Québec (RBQ).

• Obtain a certificate of compliance officially sealed by a qualified professional.

• Have a system that is either a direct source of pollution or does not follow current laws.

Some rules vary from place to place, as each municipality decides its own parameters. Contact your local city hall to see if such a program exists in your area.

Other Financing Solutions

Since these programs might not cover the full cost of a replacement, you may need other sources of funding.

• Check with your bank: Talk to the financial institution that holds your mortgage. Because a working septic system protects the value of your property, banks are often open to granting an additional loan for these essential repairs.

• Private lenders: Some private lenders offer temporary loans to cover urgent replacement costs. However, this should not be your first choice, as interest rates are often much higher.

In Short

Thanks to these loan and grant programs, the costs of replacing a septic system are much easier to manage. These measures are there to support homeowners and, ultimately, protect our natural environment.

It is important to look into local programs, check if you qualify, and take advantage of these savings if you can. By doing so, you ensure your property handles waste properly and you help protect Quebec’s water resources.

Do you have questions about financing? Our Soluo experts can help you organize your septic project from start to finish with our “turnkey” solutions.