Every open job
What each job is, who it's for and what's left to pay.

Add a job with its price. Each payment gets a numbered receipt that shows the balance still owed. Receipts is free.

Deposit, progress payments, final.
Owed, this payment, still due.
By email, with a PDF.
Your year, by month.
What each job is, who it's for and what's left to pay.

A deposit on a $850 job shows $550 still due.

A PDF or a spreadsheet for your tax preparer.

Yes. Add the job with your price and log the deposit against it. The receipt shows what's still owed, and paying in full closes the job.
No. A receipt says what you were paid. Keep your estimate or contract for the work itself.
Use Quick sale: list what you did and the price, and hand them a receipt to scan.
Receipts is free. No fee per receipt and no monthly fee.