A discount request after work is finished puts you in an awkward spot. Here's how to navigate it fairly, for both sides.
Understand the reason first
Ask directly why the discount is being requested — genuine dissatisfaction with the work is a very different situation than a client simply trying their luck.
If there's a legitimate quality issue
Address the underlying concern directly, potentially offering revisions or a partial adjustment tied specifically to the issue — rather than an open-ended discount.
If it's simply a budget request
You're not obligated to renegotiate a price that was already agreed upon. A polite, firm response referencing the original agreement is reasonable.
Consider the relationship value
For a long-term, otherwise reliable client, a small one-time gesture (not necessarily a discount — could be a bonus deliverable next time) may be worth preserving the relationship.
Avoid setting an unwanted precedent
Whatever you decide, be mindful that discounting after delivery can set an expectation for future invoices with the same client.
Put any agreed change in writing
If you do agree to an adjustment, confirm the new amount in writing and issue a corrected invoice or credit note — don't leave it as an informal understanding.