When I retired, my wife gladly relinquished the last part of our finances she had been handling (paying the bills). She has never shown any interest in our financial investments. But she is intelligent and I am sure that she would do fine if I wasn't here to handle our investments anymore. I have written a pamphlet describing in detail our current financial situation (list of assets, account numbers, passwords, etc...) with guidance relative to each investment (description, purpose, tax handling, alternatives, etc...). Hopefully, it will provide a good starting point for her.