How to Fill Out Form CBS1

Form CBS1 at a glance

What it is: CBS1 Contract to Buy and Sell Real Estate (Residential): Buyer agrees to buy and Seller agrees to sell the Property described under Property on the terms and conditions set forth in this contract.

Who signs: Signatures: Buyer's Name, SIGN and Buyer's Signature Date. If this offer is being countered or rejected, do not sign this document. Seller's Name, SIGN and Seller's Signature Date.

A filled-in Form CBS1 example: a buyer fills out the contract

Form CBS1 example filled out, example: a buyer fills out the contract — Sam Sample and Jo Sample buy a house from Pat Example using CBS1. The price is 300,000 dollars, paid with earnest money, a new loan and cash at closing. The earnest money is paid by check to Example Title Company. The picture shows page 4, and the other filled fields are on pages 1 and 19; its names and figures are sample values. Earnest money is 10,000 dollars and the new loan is 240,000 dollars, so cash at closing is 50,000 dollars. Each total is 300,000 dollars because the amounts add up to the price. Sam and Jo take title as Joint Tenants, so Tenants In Common and Other stay empty. Closing and possession are June 30, 2026, and acceptance is due March 20, 2026. Sam and Jo each sign in the Buyer block of their own and date it March 14, 2026.

How to fill out Form CBS1, box by box

Buyer, Seller and how Buyer will take title

Buyer will take title to the Property as Joint Tenants, Tenants In Common or Other.

This Contract is not assignable by Buyer unless otherwise specified in Additional Provisions.

Seller is the current owner of the Property described under Property.

Property: County, legal description and Street Address

The Property is the following legally described real estate in the County of ____, Colorado (insert legal description).

Known as: Street Address, City, State, Zip.

Buyer's Name and Buyer's Signature

Signatures: Buyer's Name, SIGN and Buyer's Signature Date.

Seller's Name and Seller's Signature

If this offer is being countered or rejected, do not sign this document. Seller's Name, SIGN and Seller's Signature Date.

More rules for Form CBS1

Adoption Date: August 5, 2025. Mandatory Use Date: January 1, 2026.

The form has important legal consequences, and the parties should consult legal and tax or other counsel before signing.

Sources

[1] Form CBS1, Contract to Buy and Sell Real Estate (Residential), Colorado Real Estate Commission (the Official source link on this page).

Form CBS1 PDF Details

This form has important legal consequences and the parties should consult legal and tax or other counsel before signing.

Modifying: all users are prohibited from modifying this form except as permitted by the Rules Regarding Real Estate Brokers, 4 CCR 725-1-7.2.

Assignability: this Contract is not assignable by Buyer unless otherwise specified in Additional Provisions.

Earnest money: the Earnest Money must be tendered, by Buyer, with this Contract unless the parties mutually agree to an Alternative Earnest Money Deadline.

Boxes: any box checked in this Contract means the corresponding provision applies.

Question	Answer
Form Name	Form CBS1
Form Length	20 pages
Fillable?	Yes
Fillable fields	311
Avg. time to fill out	52 min
Edition	Adoption Date: August 5, 2025
Other names	CBS1, Form CBS1, Colorado CBS1, Contract to Buy and Sell Real Estate (Residential)
Official source	Form CBS1 (Rev August 5, 2025), Colorado Real Estate Commission

Colorado CBS1: Contract to Buy and Sell Real Estate (Residential)