The Department for Work & Pensions (DWP) has refused to postpone the date by which the disclosure of charges becomes mandatory.
A fifth of the 44 respondents to this section of the government's consultation, which introduces legislation that will allow pension savers will be able to compare pension charges online, requested a delay to implementation until April 2019.
"The main reason given was the need for more time to develop systems and amend documents," the DWP stated.
Under the new proposals, published as draft regulation in October, managers and trustees of thousands of workplace schemes will have to publish comprehensive information about their charges, or face a fine up to £50,000.
The new disclosure requirements will be applied to occupational schemes that provide money purchase benefits.
However, the new rules might be extended to defined benefit (DB) plans in the future.
Trustees of the schemes will not only publish a percentage figure for fees levied on pension savings, but also provide a "pounds and pence" illustration so members can see how charges hit their growing retirement pot.
The DWP noted that while it gave "these minority concerns careful consideration", it didn't change its position, since "no scheme will be required to publish any information at all until November 2018".
The DWP stated: "We believe this gives scheme adequate time to implement the proposals, particularly as we are not being prescriptive about how the information is presented.
"Communicating the information effectively is likely to be an iterative process where trustees learn from feedback and from their peers, and a further delay would simply delay the learning process."
The DWP also noted that it is liaising closely with the Financial Conduct Authority (FCA), as they prepare their own rules for disclosure and publication by workplace personal pension schemes.
The watchdog launched a consultation on this matter earlier this month.
Back in September, the FCA publish new requirements for asset managers, which will have to disclose total transaction costs to pension schemes that directly or indirectly invest in their funds.
The government also noted that "trustees are dependent upon underlying investment managers providing the relevant costs and charges information," and that the DWP is engaged with the work of the Institutional Disclosure Working Group (IDWG) to establish a standardised template for cost and charge disclosure to institutional investors.
Finally, the DWP said asset managers and others already have a duty to disclose cost and charge information under Conduct of Business Sourcebook (CoBS) rules, and it is "not aware of any transaction costs which they do not capture".
According to Guy Opperman, minister for Pensions and Financial Inclusion, this "is the final step on an important journey to building an open and transparent costs and charges system, which supports consumers to make well informed decisions".
He said: "Membership of workplace pension schemes is at an all-time high and it is right that people are able to access all of the information that they need about their scheme in a meaningful way.
"My priority as minister for Pensions and Financial Inclusion is to ensure that all the new savers we are bringing in through automatic enrolment are able to engage with their options and understand the true value of their funds.
"These changes combined with future developments such as the pensions dashboard and formation of the Single Financial Guidance Body will do just that."
maria.espadinha@ft.com
