The idea
Tax incidence describes how a tax burden is shared through prices and margins. In a simplified competitive model for a small per-unit tax, the buyer share is approximately supply elasticity / (supply elasticity + absolute demand elasticity). A fixed per-SIM levy, an ad valorem tax and an oligopolistic market need separate assessment. Use the applicable dated tax rules and your own price-response evidence before assuming full pass-through.
Use it thoughtfully
- Estimate how much of a new tax you can pass on.
- Model price elasticity before passing a tax through.
- Shift effort to retention when new SIMs are taxed.
An example
ILLUSTRATIVE EXAMPLE: When a per-SIM tax rises, a team cuts SIM giveaways and moves budget to keeping existing customers active.
A question to try
If a new tax arrived next month, how much of it could you pass on without losing volume?
A useful framework is a starting point, not a guarantee. Effects vary with the audience, product and situation. Use truthful evidence, respect customer choice, and test the result.