Reviewed July 8, 2026

How Much Does a Prenup Cost in Ontario (2026)

Ontario couples usually call a prenup a marriage contract. This guide compares lawyer drafting, online draft-first options, independent legal advice, and the Ontario legal context that affects cost.

Reviewed

Reviewed July 8, 2026. Cost ranges and legal context were checked against the sources listed below.

Quick Answer

In Ontario, a lawyer-drafted prenup or marriage contract commonly costs from $1,500 for a simple file to $10,000 for complex assets, according to a 2026 Ontario cost guide. A lower-cost workflow is to start with an online draft, then have each partner get independent legal advice before signing. A Prenuply draft is $49 CAD with 3 generations included, but it is not legally binding on its own.

Cost Breakdown

Every dollar figure below comes from a cited source or from Prenuply live checkout pricing. If a reliable range was not available, the table says costs vary instead of guessing.

Cost item	Low range	High range	What drives the price up	Source
Lawyer-drafted agreement	$1,500	$10,000	Asset complexity, business interests, real estate, spousal support negotiation, revisions, and whether both partners retain counsel.	Divorce.law Ontario guide
Online platform draft + lawyer review	$49 Prenuply draft + legal review	Legal review varies	The platform lowers drafting time, but lawyer review, negotiation, disclosure cleanup, and partner-specific advice still add cost.	Prenuply checkout and Prenup.ca review
Independent legal advice (ILA) per person	$599 + HST	Varies with complexity	Long agreements, missing disclosure, negotiation, revisions, business assets, and property questions can increase review time.	Prenup.ca review package

Ontario Legal Context

Ontario marriage contracts are domestic contracts under the Family Law Act. The agreement must be in writing, signed by both parties, and witnessed, and independent legal advice is part of an enforceability-ready process.

Marriage contracts can address property ownership, division, support obligations, and other settlement matters, subject to statutory limits.

A court may review disclosure, understanding, pressure, and ordinary contract-law issues if a contract is challenged.

Matrimonial home rights need Ontario-specific review because a contract cannot simply override every home-related right.

Ways to Lower the Cost

The honest way to reduce cost is to reduce the amount of lawyer time spent turning scattered facts into a first draft. The final agreement still needs independent legal advice before signing.

Prepare asset, debt, income, business, and real estate details before the first lawyer call.

Use a draft-first workflow to organize the couple's proposed terms before legal review.

Start early so neither partner needs rush drafting or rushed ILA close to the wedding.

Use one clean set of schedules and supporting documents so both lawyers review the same facts.

Keep the province page, Canada-wide cost guide, and online service comparison close while you decide how to start.

Ontario prenup and marriage contract guide

Review Ontario marriage contract rules, disclosure, signing, and what a working draft can cover.

How much does a prenup cost in Canada?

Compare Canada-wide cost ranges, online drafting options, and lawyer review factors.

Best online prenup services in Canada

Compare Prenuply, Jointly, HelloPrenup, LawDepot, and lawyer-drafted options.

Frequently Asked Questions

What is a prenup called in Ontario?

Ontario legislation usually uses the term marriage contract. Many couples still search for prenup, but the final Ontario document is commonly a marriage contract.

Can I use an online prenup in Ontario?

An online draft can help organize terms and disclosure, but it is not legally binding on its own. Each partner should get independent legal advice before signing.

Why do Ontario prenup costs vary so much?

Costs rise when the agreement involves businesses, multiple properties, support clauses, inheritance planning, late timing, missing disclosure, or negotiation between lawyers.

Does Ontario require independent legal advice?

Couples should treat independent legal advice for both partners as required for an enforceability-ready Ontario marriage contract. Without ILA, understanding and fairness are easier to challenge later.

Can Prenuply replace an Ontario lawyer?

No. Prenuply is a technology company, not a law firm. It creates a working draft for each partner to review with independent legal counsel.

Sources Reviewed

Sources reviewed July 8, 2026. Pricing and legal rules can change, so verify current fees before hiring a professional.