I am a technical team lead on the information security team where I work. Our team and company encourages employees to pursue training and employees have a wide choice in how they want to pursue professional development.
I found this training event hosted by a professional cybersecurity organization of ISACA that fits well with what I currently do, cybersecurity operations and advisory. Even though I am an ISACA member, it will still cost approximately 1000 dollars to attend. Our company has a training budget that can cover this, however, I also have 5 team members who also want to attend other trainings and virtual conferences. The price tag for 6 of us will exceed our team's training budget by a significant amount. Our budget for this year is already approved so asking for more money is not an option. I am the most senior member on the team, so in a sense junior members may benefit from more training than myself.
I am willing to cover partial cost out of my pocket and only use partial company training budget to maximize opportunity for all team members to attend training. I have great standing in the team and company and am highly respected.
How do I approach my manager to see if split payment is possible?