Last updated: 17 February 2026

Quick take: Monzo investment fees are now 0.25% a year (or 0.20% on certain paid plans). If you’re a smaller-balance, set-and-forget investor, Monzo just got a lot more competitive. If you’re fee-optimising at higher balances, fund costs and fee caps still matter.

Monzo has made a change that actually matters: the platform fee for Monzo Investments is now 0.25% per year (and 0.20% if you’re on eligible paid plans). Fees accrue daily and get collected monthly from your investment account. That’s the “Monzo fee” bit, not the fund manager’s own fee (more on that below).

If you want the full context first, start here: Monzo Investments review. If you already know you’re doing it and just want the quickest route, go straight to our: Monzo Investments referral link.

Not on Monzo yet? You’ll need an account first, then you can add Investments. Here’s the sign-up route: Monzo sign-up referral.

What exactly changed?

Monzo’s current published fees for its Stocks & Shares ISA / Investment Account are:

  • 0.25% platform fee per year (Monzo’s fee)
  • 0.20% platform fee per year if you have certain paid plans
  • Fees are worked out daily and charged monthly
  • You also pay ongoing fund management fees set by the fund managers (varies by fund)

Monzo’s own help pages spell out the current platform fee and how it’s calculated: Monzo Investments fees, and the public-facing ISA page summarises it too: Monzo Stocks & Shares ISA fees.

Why this fee cut is a big deal (and when it isn’t)

Fees don’t feel exciting, but they compound. Shaving the platform fee makes Monzo a lot more defensible as a “simple ISA” option, especially if you’re investing regularly and want everything in one app.

It’s a win if you’re in the “I just want to invest monthly” camp

If you’re mostly investing small amounts regularly, Monzo’s value is the same as it always was: it’s dead simple. With lower Monzo investment fees, you’re paying less for the convenience of doing it inside your bank app.

It’s less exciting if you’re obsessed with the absolute lowest fee stack

The platform fee is only half the story. You still need to look at the ongoing fund charges (the fund’s own management fee), plus what you’re actually investing in. Monzo makes this easy to check in-app for each fund, which is good, but you should still check it.

Quick maths: what does 0.25% cost you?

Ignore fund fees for a second and just look at the platform fee (Monzo’s cut):

  • £5,000 invested: about £12.50/year
  • £20,000 invested: about £50/year
  • £50,000 invested: about £125/year

If you’re on a paid plan with 0.20%, those numbers drop again. Not life-changing, but it’s the difference between “fine” and “why am I paying that?”.

What about the fee cap?

Monzo has also talked publicly about capping platform fees once your combined Investments and Pension balance passes certain thresholds, which matters more as balances grow. The details can change, so if you’re near those numbers, check Monzo’s latest announcement and terms before you make decisions: Monzo community post on fee caps.

So… is it worth switching to Monzo Investments now?

It can be. Here’s the simple decision tree:

  1. If you’re not investing at all: Monzo becoming cheaper makes it a nicer on-ramp. Starting beats optimising.
  2. If you already invest elsewhere and hate managing apps: the lower fee strengthens the “one app” argument.
  3. If your current platform is significantly cheaper: don’t switch just because Monzo tweaked a headline number. Compare total fees (platform + funds) and features you actually use.
  4. If you’re building a larger ISA/pension balance: check the current cap rules and whether your platform elsewhere beats Monzo overall.

Next steps, depending on where you’re at: read the Monzo Investments review, or go straight to the Monzo Investments referral link.

FAQ

Is 0.25% the total cost?

No. 0.25% is Monzo’s platform fee. You’ll also pay ongoing fund fees set by the fund manager, which vary by fund.

How are Monzo investment fees charged?

Monzo calculates the fee daily, adds it up across the month, and collects it monthly from your Investment Account.

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Published by Stiv in Apps, Finance, Investing, Services
Tags: Fees, investing, monzo, Platforms, stocks and shares isa, UK personal finance