Tax dodging costs lives. It robs poor countries of the taxes they're owed - money that should be spent building schools and hospitals.
We need to stop some unscrupulous firms dodging tax and our biggest companies can help us: they have the power to help change global accounting rules, so that poor countries can trace the taxes they're owed.
We've already sent thousands of emails to FTSE companies asking them to support our tax campaign. Now we want to deliver our 'Trace the tax' messages to their offices and stores via a series of witty and eye-catching actions. We already have a few great ideas of our own. Now we really want to hear yours!
Over to you!
Share your ideasFirst up: Unilever. Share your ideas for delivering our tax messages to Unilever and getting them on board with our campaign.
Bishop raises issue of tax dodging by multinationals in the House of Lords.
Still plenty to stew on after Lamb's first test on transparency.
Email FTSE firms

Urge Vodafone, Unilever & TUI Travel to lead on tax justice.
Why tax rules need to change.