The 3 Non-Negotiable Rules Every Professional Woman Must Master
Recently, one of our Women of Agency clients asked me: “Wies, if you had to distil everything you know about negotiation into just THREE rules, what would they be?”
Don’t you love questions like that? The ones that force you to get ruthlessly clear on what matters most?
After years negotiating million-euro deals as a lawyer, and now delivering career negotiation coaching to executive women across the world, here are my three non-negotiable rules for negotiation success.
Rule 1: Be Ambitious
Listen closely, my darling, because this is critical: if you can’t even SEE it for yourself, you definitely won’t GET it for yourself.
I see this constantly in women’s career negotiation advice sessions. Professional women walk into negotiations having already talked themselves down to “realistic” expectations. They’ve mentally settled for less before they’ve even started.
Your brain needs to imagine the outcome you want. Whether that’s a 50% salary increase, a C-suite position, or role co-creation that transforms your responsibilities entirely, if you can’t picture it, you can’t achieve it.
This isn’t about magical thinking. It’s about expanding what you believe is possible before you negotiate your worth. Senior professional women deserve bold asks, not pre-emptive compromises.
Rule 2: Bring the Data, Not the Drama
Want to know what separates successful strategic career negotiation from failures? Research.
Not emotion. Not hope. Not wishful thinking. Cold. Hard. Facts.
When women in leadership positions work with our career advancement coaching programmes, they enter negotiations armed with salary benchmarking data, competitor intelligence, and concrete evidence of their value. They’re not hoping for the best. They KNOW what they’re worth and can prove it.
Bob down the corridor isn’t getting promoted because he’s likeable. He’s getting promoted because he makes the business case. You need to do the same.
Rule 3: Focus on the Other Side
Here’s the plot twist that transforms negotiation strategies for women: the best negotiators spend more time listening than talking.
I know. You’ve prepared your perfect pitch. You’ve got your arguments ready. But the magic happens when you shut up and genuinely listen to what the other side wants.
Because here’s the truth: nobody cares about YOUR reasons for wanting something. They care about themselves. So let them talk, and listen carefully. Their priorities reveal where you can create value and leverage.
Beyond the Basics
Now, do I have other negotiation strategies up my sleeve? Of course I do. You don’t achieve an average of 93% salary increases for clients through our women’s career coaching programme with just three rules.
But these three principles? They’re the foundation of everything else taught in our coaching programs.
If you’re just getting started with women negotiating their worth, master these first. They’re the difference between hoping for progress and strategically creating it.

