Amendment
An amendment is a written change to the terms of a contract that has already been signed, agreed by the same parties.
Updated November 5, 2026 · 1 min read
What makes it valid
- It names the original contract by title and date.
- It identifies each clause being changed and gives the new wording.
- It says everything else stays the same.
- It's signed the way the original contract's amendment clause requires, which is often in writing, signed by both parties.
Amendment, change order or addendum?
A change order changes the work on a construction job, usually its scope, price and schedule. An addendum adds terms. An amendment changes agreed terms, like a lease's rent, a service agreement's length or a payment schedule. The change order vs amendment guide walks through the difference.
In SignMaster
Write the amendment as its own short document and send it to everyone who signed the original, in the same signing order. Keep it with the original: the two signed PDFs and their certificates together show what was agreed and when it changed.
Questions? Answers.
Can you amend a contract by email?
Sometimes, but many contracts say amendments must be in writing and signed by both parties. An e-signed amendment meets that more clearly than an email thread.