A fair fee test, not a transfer quote
For the same £20,000, assume 0.6% all-in each year across the old pots versus 0.3% all-in after a move into the same investment mix. These are illustrative assumptions for unknown plans, not provider offers. The lower charge is consistent with Nest's published 0.3% annual management charge, but that does not establish that this household has access to an all-in 0.3% replacement; new contributions to Nest also incur a separate 1.8% charge, which the provider says does not apply to transfers in. The actual comparison requires fund charges, account fees and any exit cost from both providers.
At the starting balance the illustration is £120 versus £60 annually, a £60 gap. The chart is one year at a fixed starting balance, not a forecast of future returns or evidence that consolidating always saves money.