Info Gulp

What Is Estoppel?


Last Updated:
Info Gulp employs strict editorial principles to provide accurate, clear and actionable information. Learn more about our Editorial Policy.

    Highlights

  • Estoppel prevents contradictions in statements or actions to protect parties from unfair harm
  • It is rooted in common law and varies by type, including collateral, equitable, and promissory estoppel
  • Estoppel certificates are essential in real estate for verifying lease details during sales or refinances
  • The principle ensures consistency in legal dealings, as seen in court cases enforcing promises that cause reliance and damage
Table of Contents

What Is Estoppel?

Let me explain estoppel directly to you—it's a legal principle that stops someone from arguing or claiming something that goes against what they've previously said or agreed to. In simple terms, if you've made a statement or taken an action in the past, estoppel keeps you from contradicting it later. This exists to prevent injustice, ensuring no one gets wronged by another person's flip-flopping. You'll find common types like collateral estoppel and promissory estoppel in play here.

How Estoppel Works

Estoppel operates within common law systems, which rely on judicial decisions and precedents rather than just statutes. Countries like the U.S., U.K., and Canada incorporate it to enforce consistency in words and actions. If you promise something to someone and they rely on it, estoppel can hold you to that promise to avoid damaging them unfairly. It's all about staying true to your word— the term 'estop' means preventing someone from backing out, and the person trying to do so is 'estopped'.

Types of Estoppel

You should know there are several types of estoppel that come up in legal situations. Collateral estoppel stops someone from relitigating the same issue in court to avoid harassment and waste of resources. Estoppel by deed keeps a person from denying facts stated in a deed they've signed. Equitable estoppel blocks inconsistent legal positions that could harm another party. Promissory estoppel, often seen in contracts, protects someone who acts on a promise and suffers loss when it's broken, even without a formal agreement. Other forms exist too, like estoppel by record, laches, estoppel by silence, and reliance-based estoppel, but these are less common.

Estoppel Certificate Components

In real estate and mortgages, you'll encounter estoppel certificates frequently. These are documents tenants sign when a landlord wants to sell or refinance a property. They confirm details like lease start and end dates, the last rent payment, any defaults, and whether the lease has been modified. This certificate asserts the landlord's claims to buyers or lenders, providing a clear verification.

Example of Estoppel

Consider this real case from Iowa to see estoppel in action. A farmer leased land from his neighbor, who promised to sell it later for $3,000 per acre. The farmer invested heavily in improvements, expecting to buy it. But the neighbor sold to someone else, leading to a lawsuit. The court applied promissory estoppel, ruling the promise was enforceable because the farmer relied on it, and awarded damages for the improvements.

Frequently Asked Questions

You might wonder how to define estoppel—it's a common law rule that stops someone from reneging on their word if it would unfairly harm another. An estoppel certificate is a signed tenant document verifying lease terms for third parties in property deals. Types include equitable, promissory, collateral, and more like estoppel by deed or silence.

The Bottom Line

At its core, estoppel is a common law principle that enforces promises and consistency to prevent one party from harming another by retracting statements or actions. It applies broadly, especially in contracts and real estate, ensuring fairness based on judicial precedents.

Other articles for you

What Is the Jones Act?
What Is the Jones Act?

The Jones Act is a 1920 U.S

What Is a Stock Market Crash?
What Is a Stock Market Crash?

A stock market crash involves a sudden, sharp drop in stock prices often triggered by events or panic, leading to economic repercussions, with measures like circuit breakers in place to mitigate them.

What Is the Employee Retirement Income Security Act (ERISA)?
What Is the Employee Retirement Income Security Act (ERISA)?

ERISA is a federal law that sets standards to protect workers' retirement and health benefits in employer-sponsored plans.

What Is a 501(c)(3) Organization?
What Is a 501(c)(3) Organization?

A 501(c)(3) organization is a tax-exempt nonprofit entity under U.S

What Is an Equated Monthly Installment (EMI)?
What Is an Equated Monthly Installment (EMI)?

EMI is a fixed monthly payment that covers both principal and interest on loans like mortgages and auto loans.

What Is a Rogue Trader?
What Is a Rogue Trader?

A rogue trader is a financial employee who engages in reckless, unauthorized high-risk trades that often lead to massive losses for their firm.

What Is a Retail Investor?
What Is a Retail Investor?

Retail investors are non-professional individuals who trade smaller amounts of securities for personal accounts, contrasting with large institutional investors and influencing market dynamics.

What Is a Bill Auction?
What Is a Bill Auction?

This text explains the process of U.S

What Are Voting Shares?
What Are Voting Shares?

Voting shares allow stockholders to vote on corporate policies and decisions like board elections and mergers.

Follow Us

Share



by using this website you agree to our Cookies Policy

Copyright © Info Gulp 2025