Substitution for plan-price WITH tax?

Dear CB-Team!

when user buy a membership on my site, they will get in case of offline-payment a email with bank account informaion and the price they have to pay. I do this with the build in workflow email "Email on pending first payment".

The display of the plan price without tax works fine. I use: [PLAN_RATE]
What is the substitution for the price WITH tax?

If I use the mailer, there is the substitution: [TOTAL_PRICE] Euro (inkl. [TAX_AMOUNT] Euro MwSt.)
But this did not work in the workflow email "Email on pending first payment".

Thank you for support me!

System:
Joomla 1.5.26
CB 1.8.1
CB subs 2.0.2

I believe all the substitutions are pre-tax, but think what you're looking for is [PLAN_PRICE]. Aside from that it does not appear the substitution you're looking for is available for the emails.