Ecology Cash ISA

Enjoy the Ecology ISA difference

Tax-free savings with zero fuss. It lets you shield your interest from taxes while giving you total freedom to deposit and withdraw whenever you want.

Every Ecology savings account also helps fund sustainable housing and environmental projects across the UK, so your savings can make a positive impact.

Why choose our Ecology Cash ISA ?

3.05% AER**/tax free p.a*
£25 Minimum Balance
£500,000 Maximum Balance
0 Days Notice Period for withdrawals
  • Ethical savings account that helps to support green and sustainable homes and businesses in the UK
  • Simple and straightforward Cash ISA
  • Save with a member-owned building society
  • Your eligible deposits with Ecology Building Society are protected up to a total of £120,000 by the Financial Services Compensation Scheme, the UK’s deposit guarantee scheme
  • To open an account online or via our app, you must be aged 18 or over, a UK resident and be opening the account in a single name.
  • Transfers In accepted from previous years’ cash ISAs
  • Interest is calculated daily and credited to your account on 5 April each year. If you close the account before 5 April we’ll credit the interest to your account on the day you close it.
  • No-notice withdrawals; however, if a withdrawal is made, the value may only be replaced by further subscriptions where the annual investment limit for the relevant tax year has not been reached
  • The maximum ISA allowance is £20,000 for the 2026/2027 tax year

What is the interest rate?

The Ecology Cash ISA offers a variable interest of 3.05% AER**/tax free p.a*

Interest is calculated daily and credited to your account on 5 April each year. If you close the account before 5 April we’ll credit the interest to your account on the day you close it.

*All ISA interest is paid tax-free, which means it’s exempt from income tax and no tax is deducted. It’s your responsibility to pay any tax due, based on your individual circumstances. Tax rules may change in future.

**AER stands for Annual Equivalent Rate and provides a means of comparing interest rates by showing what the rate would be if interest was paid and added once a year.

This account not for you? We'd love you to take a look at our other options

Additional Information

You should read the following documents before applying for a Ecology Cash ISA:

Father with his toddler son on his shoulders in a forest both looking upwards smiling. A lime green graphic arch is placed over the image farming the pair

Your Savings,
Growing Impact

At Ecology, sustainability is in our roots.

When you save with us, your money helps bring affordable, eco-friendly homes to life and supports community projects that put people and planet first.

See the difference your savings can make by exploring the real projects our Savings Members help fund — from sustainable homes to thriving local initiatives.

Together, we can make your money matter — creating a fairer, greener future.

Download our Sustainable Savings Guide

Prefer to manage your savings on the go?
Download our app

Or if you prefer, call or email us.

FAQs

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  • Fair Tax Accredited logo
  • Ethical Consumer Best Buy logo
  • iiE Awards 2025 logo. Natural Environment Champion winner