A definition that swallows your portfolio
If 'confidential information' covers everything you learn or produce during the engagement, then showing the work in your portfolio, or even naming the client, can technically breach the NDA. For a freelancer, an invisible portfolio is a real business cost that an employee never pays.
Ask for: Ask for an explicit portfolio carve-out: the right to display the finished work and name the client once the project is public, or after a defined quiet period.
Non-solicit clauses that shrink your market
Buried non-solicit language can bar you from working with the client's customers, partners, or contacts, sometimes for years. Your next three clients may be people you met on this project. An employee gives up little by signing this; a freelancer gives up pipeline.
Ask for: Ask to strike non-solicit language from the NDA entirely, or narrow it to people you only know because of this engagement, with a short term.
Residuals and know-how claims
You sell the same skills to every client. A clause that restricts 'residual knowledge', general techniques, processes, and experience you retain in your head, can claim the very expertise you charge for, and make your next similar project a breach risk.
Ask for: Ask for an explicit residuals clause: general skills, knowledge, and experience retained in unaided memory are excluded from confidentiality.
One-way duties on a two-way conversation
Client NDAs are usually drafted one-way: you are bound, they are not. But freelancers disclose too: your rates, your methods, your proposals, your tooling. If the NDA only protects them, your pitch and pricing can be shopped to a cheaper competitor with no recourse.
Ask for: If you will share proposals, methods, or pricing, ask to make the NDA mutual so the same duties run both ways.
Terms that outlive the relationship by years
An employee's NDA obligations fade into the background of a salary. A freelancer juggling many clients has to actively remember and police every live NDA. Indefinite or five-plus-year terms multiply across every client you have ever signed with.
Ask for: Ask for a two-to-three-year term from disclosure, with only true trade secrets lasting longer.
NDA clauses that belong in the services contract
Watch for IP assignment, non-competes, exclusivity, or indemnities smuggled into a 'standard NDA' sent before you have even scoped the work. Those terms shape the whole engagement and deserve negotiation in the actual freelance contract, not a signature on day zero.
Ask for: Ask to keep the NDA confidentiality-only and move IP, exclusivity, and liability terms into the services agreement where they can be priced and negotiated.