Here is a list of idiomatic expressions about money.

Almighty dollar

This expression is used to suggest that someone regards money as more important than anything else.

• The master warned his disciples against spending their whole life chasing the almighty dollar.

Ante up

To ante up is to pay money

• We had to ante up thousands of dollars to get our roof fixed.

As phony as a three-dollar bill

If something is as phony as a three-dollar bill, it is not genuine.

• The offer was as phony as a three-dollar bill.

As sound as a dollar

If something is as sound as a dollar, it is very secure.

• The CEO insisted that their company was as sound as a dollar.

At a premium

If you buy something at a premium, you pay a higher price than normal.

• I decided to watch the match on TV as the tickets were selling at a premium.

Bet one`s bottom dollar

To bet your bottom dollar on something is to bet all that you have.

• I would bet my bottom dollar on Barcelona. I am confident that they will win the Spanish League.

Beyond one’s means

To live beyond your means is to spend more than you earn.

• If you live beyond your means, you will soon find yourself in the debt trap.

Be born with a silver spoon in one`s mouth

When you are born with a silver spoon in your mouth, you are born to wealth and comfort.

• Although my friend was born with a silver spoon in his mouth, he is very down to earth.