CalculatorsMonthly interest calculator

Monthly interest.

Model monthly interest examples using simple and compound annual illustrations. The calculator is illustrative only and is not investment advice.

For eligible investors only. Capital at risk. This is not investment advice.

Calculator

Estimate monthly interest.

Monthly interest tier
1%

Based on the current public tiers: 1% monthly from GBP 5,000 to GBP 20,000, and 2% monthly above GBP 20,000.

Estimated monthly amount
£200.00
Simple annual illustration
£2,400.00
Compound annual illustration
£2,536.50
Minimum balance
GBP 5,000
First tier
1% monthly
Top tier
2% monthly above GBP 20,000

Ready to continue.

Calculator outputs are illustrative only. They are not investment advice and do not account for tax, fees, eligibility, withdrawal timing or product-specific terms.

Check eligibility

Illustrative only.

The calculator does not account for fees, tax, eligibility, withdrawal timing or product-specific terms.

Not a savings account.

Monthly interest investment information should not be compared with bank savings products without reading the risk information.

Eligibility applies.

Use the eligibility journey before reviewing account-opening information.

IGI Logo

Monthly interest tiers, paid into your pot every day. For eligible investors only.

Get the app.

Apple App StoreAndroid App Store

Regulatory information

IGI Limited is registered in England and Wales under company number 13141820. Our registered address is 20-22 Wenlock Road, London, England, N1 7GU.

IGI Ltd is not authorised and regulated by the FCA and we do not give investment advice, you should contact a regulated investment professional if you require investment advice.

Investment products are available to you on the basis that you are reasonably believed to be such a person as is described in Article 19 (Investment professionals), Article 48 (Certified high net worth individuals), Article 49 (High net worth companies, unincorporated associations, etc.) Article 50 (Sophisticated investors), Article 50A (Self-certified sophisticated investors) and Article 51 (Associations of high net worth or sophisticated investors) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, or you are a person to whom this information may otherwise lawfully be sent or viewed.

If you do not fall within such descriptions, then you should not act upon the information contained on this website.

Copyright © IGI Limited 2026.
All rights reserved.