There’s no fixed number — impact depends more on your overall review volume and average rating trend than any single negative review in isolation.
What actually moves the needle
- A pattern of similar complaints (e.g. repeated mentions of slow response times) is far more damaging than one isolated negative review, since it signals a real, ongoing issue rather than an outlier
- Overall average rating dropping below a threshold customers commonly use as a mental cutoff (often cited around 4 stars) can measurably reduce click-through in search/map results
- How you respond to negative reviews is often scrutinized by prospective customers as much as the complaint itself
Practical response
Monitor for patterns, not just individual reviews, and treat a recurring complaint as an operational signal to actually fix, not just a PR problem to manage.
FAQ
Is it better to have zero negative reviews?
Not necessarily — an all 5-star profile with very few total reviews can read as less authentic than a strong profile with the occasional negative review handled well.