The size of pension charges is thrust into the public spotlight tonight when a BBC investigation claims some managers take as much as 80% of contributions in fees.
In the most stark example, Panorama will allege people paying £120,000 into the HSBC World Selections Personal Pension over 40 years would see £99,900 eroded by charges.
Although it estimates growth of 7% over that period - meaning the charge would drop to 16% of the total £621,000 pot - the findings again question just how much savers are aware of the size of the levies they pay.
Experts say the charges are so high because fund managers trade shares frequently rather than investing for the long-term.
Panorama is told by HSBC the plan offered "good value for money" and was "certainly not one of the most expensive pension schemes in the market".
Other providers' charges are also scrutinised, including those of The Co-operative and Legal & General.
George Ladds, head of investment and pension research at Fair Investment Company, says the programme will not help to "solve the ongoing pensions crisis we have in this country".
"People are simply not saving enough for retirement, and when they hear things like 'pension companies will take 80% of your contributions' it is certainly not going to endear them to start saving into a pension.
"The main issue here is not how much companies take in fees, but the fact that most young people don't even want to engage with the pensions industry - that's what needs to change."
Jason Witcombe, director of Evolve Financial Planning, says the issue of pension charges needs to be tackled.
"The average pension fund is worth between £25,000 and £50,000 so, when you have modest amounts of money like this invested in a SIPP with £150 fees, it works out at a larger percentage than if you were investing £100,000.
"In most cases it is reasonable charges are calculated as a percentage and there is not really any other way of doing it. Stakeholder charges are actually very reasonable."
Panorama is on BBC One tonight at 8:30pm.
Achievements, charity work and other happy snippets
Laughable excuses for persisting
Spent 56 years at Schroders
Warns on profits