I would like to enter amounts for income/expense accounts on my invoices (e.g. sundry income - donations) How can I set invoices to accept ledger accounts?

Hi, lifestyle-rooisa.

The invoice only connects to the accounts through the item/service you're using for them. You'll need to change the accounts in which the items are associated with. You can mark bills, checks, expenses, as billable, and they'll show as an expense on your books. When you apply them to invoices, they'll show as income.

Additionally, QuickBooks made it easy for you to manage your account. Here's the set of articles that'll further guide you in monitoring the growth of your business: Help Articles for QuickBooks Online. It contains topics about customer and income, suppliers and expenses, and banking to name a few.

Please let me know if you have other concerns. I'm just around to help. Take care always.