- Experts rate Lightyear High-Interest Vaults highly for providing an easy-access investment product that allows users to earn competitive interest rates on idle cash. The product is backed by AAA-rated money market funds, although it does come with a 0.25% annual fee and lacks FSCS protection, which may be a consideration for potential investors.
- Across 676 user reviews on Good Money Guide, averaging 4.9/5, customers frequently commend the app's user-friendly interface, low fees, and transparent pricing. Many users appreciate the platform's simplicity and efficiency, making investing accessible for both beginners and experienced investors. However, some users have noted that while the service is excellent, there may be better interest rates available elsewhere.
Lightyear High-Interest Vaults Expert rating
Our expert rating is the average of the areas listed here, each scored out of 5 by our team.Our experts have rated Lightyear High-Interest Vaults across five key areas of our review framework.
- Pricing4.5
- Market Access4.0
- App & Platform5.0
- Customer Service5.0
- Research & Analysis4.5
Pros
- High interest rates
- AAA-rated money market fund
- Interest earn daily
Cons
- Better rates are available elsewhere
- Interest is paid monthly instead of daily
See full expert review
Our verdict
Lightyear’s High-Interest Vaults give customers a way to earn interest on uninvested cash by placing it into low-risk money market funds managed by BlackRock. These are easy-access, variable-rate investment products available in GBP, EUR and USD, designed to track short-term interest rates such as the Bank of England overnight rate.
What are Lightyear High Interest Vaults?
We rate Lightyear’s Vaults highly as they are designed for investors who want their idle cash to earn a market-linked return while remaining easy to access, rather than sitting uninvested in a brokerage account.
Lightyear's High Interest Vaults are an easy-access cash investment product with variable rates, and there are separate vaults for deposits in Sterling, Euros and US dollars. Currently, the Sterling Vault offers around 3.77% AER (variable), with interest calculated daily and paid monthly. There are no minimum or maximum deposit limits, so users can start from £1 and add unlimited amounts.
How do Lightyear Vaults differ from holding cash from savings accounts?
Unlike a traditional savings account, the Vault is an investment product rather than a bank deposit. Your money is invested in AAA-rated money market funds, meaning capital is at risk and FSCS protection does not apply to funds held within the money market fund itself.
What is your money actually invested in?
Cash in the Sterling Vault is placed into funds such as the BlackRock ICS Sterling Liquidity Fund, which invests in diversified short-term instruments like treasury bills, commercial paper, certificates of deposit and repurchase agreements. This spreads risk across multiple institutions rather than relying on a single bank.
Is it cheaper to buy the money market fund directly?
Lightyear charges a 0.25% annual fee on money held in the Sterling Vault. While investors could theoretically access similar institutional money market funds directly, minimum investments can run into hundreds of millions, so Lightyear provides retail access to these products with no minimum deposit.
Customer reviews for Lightyear
Customer ratings come from reviews left on this site. Every review is read and approved before it is published.Based on 676 reviews
- Excellent92%
- Very good6%
- Basic1%
- Poor1%
- Bad0%
Read customer reviews
nimble
Very slight and nimble app.. quick to implement and setup
Best investing app
Fantastic investment website
modern
Simplicity, UI, UX, support.
Accessible
I think Lightyear is the most accessible investing app in my country (Hungary) for beginners that still offers a lot of depth for more advanced investors (as well as country-specific features, like the TBSZ account in Hungary). Lightyear's costs are among the cheapest (and transparent!), still, they offer services of the highest quality. The app is cutting edge too when it comes to design and usability.
Transparent
Transparent and low fees, lots of ETF to choose from, easy to use application
Modern
Great app, constant improvements, listens to community
Super
Simple, light, and user-friendly
great
great
User-friendly
The ui ux experience is the best, low fees, speed, support
Great broker
Managing etfs
Fast
Simple ui
Intuitive
They showcase their options in a very intuitive and easy to understand way.
Innovation, disruption
Quick reaction to regulatory changes, innovative new functions, great watch lists, engaging UI, simple working referral process, useful newsletter. Overall a very competent team behind the company.
Excelent
Easy to use. Much info about investment options. Plenty of graphs and news.
Easy
Amazing user experience. This applies to the app, account and their customer support.
Interactive
Interactive charts and easy to understand
Clear, Developing
They have really clear and short tutorials to open account and make it the best for you (for example in Hungary they help in tax processes and help to open "Tax free" account.
They have good online events about a lot of topics in investment.
The app is really cool, fast and easy to use.
Accessible
Very low-cost and compettive fees, accessible and user- friendly even for new investors.
It is also a grwat choice for European investors, and financially regulated. Customer support replies usually quite fast, considering they use email to do so.
Simple
the UI is very easy to navigate, and the support is very responsive
Innovative
Easy and userfriendly app. many different stocks and possibility to earn from your money
Lightyear’s High-Interest Vaults are designed to help investors earn a return on idle cash by placing it into low-risk money market funds rather than leaving it uninvested in a brokerage account. In this guide, we explain how the Vaults work, what they invest in and whether they’re a good alternative to traditional savings.
Capital at risk

Richard is the founder of the Good Money Guide (formerly Good Broker Guide), one of the original investment comparison sites established in 2015. With a career spanning two decades as a broker, he brings extensive expertise and knowledge to the financial landscape.
Having worked as a broker at Investors Intelligence and a multi-asset derivatives broker at MF Global (Man Financial), Richard has acquired substantial experience in the industry. His career began as a private client stockbroker at Walker Crips and Phillip Securities (now King and Shaxson), following internships on the NYMEX oil trading floor in New York and London IPE in 2001 and 2000.
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