In the world of Financial Planning, the goal when it comes to tax is to pay as little as necessary.

This approach is legal tax avoidance, rather than illegal tax evasion, and it involves making use of available allowances and reliefs to manage your tax affairs most efficiently.

But what happens when you pay too little tax?

According to some new research, around a third of taxpayers who use self-assessment could be paying too little.

In this episode, Martin talks about the scale of the issue and shares some tips for dealing with tax underpayments.