Is a verbal agreement valid? How to keep proof of what was promised
A verbal promise can still be a contract. The problem comes when there is a dispute and you cannot show what was promised, or who promised it.
A verbal promise can still be a contract
In many countries, a contract is formed when both sides agree, and most everyday agreements do not have to be in writing. Lending money to a friend or selling something privately can be a contract even if it was only spoken.
Some agreements must be in writing to be valid, and which ones depends on the country. If the amount is large or the matter is important, check the rules where you live.
The real problem is proving it
Most trouble with verbal promises comes not from the contract being invalid but from being unable to prove what it said. If the amount, deadline and payment method stay vague, both people’s memories drift apart over time.
And if the other person stops replying and you don’t know their real name or how to reach them, you can neither ask for payment nor get help.
What to record
At a minimum, record these four points in a form the other person has also confirmed: (1) who is promising what to whom, (2) what will be done (the amount, item or work), (3) by when and how, and (4) what happens if it is not done.
Avoid vague words like “soon” or “as quickly as possible”. A date with a clear starting point, such as “within 30 days of this agreement”, leaves less room for argument later.
Are chat messages and e-mails enough?
Message history can help, but the terms end up scattered through a conversation and it is hard to tell which version was final. People can also dispute whether an account really belongs to them.
Putting what you agreed in one document, and having each party verify their identity before signing, makes both the content and the person easier to trace later.
This is general information, not legal advice. Laws differ by country, so ask a professional about your specific situation.