Hi (Recipient's name),

Thank you for your job offer (insert details). Before accepting, I would like to discuss the salary.

I believe the current salary offer doesn’t reflect my (skills, experience, seniority, achievements, etc.).

Please let me know what the process is. I believe that, between us, we can agree on a starting salary that we are both happy with.

I am available at (insert contact detail and dates and times).

Kind regards,

(Your name)