Yes, you should claim all of it. As long as there was a written agreement it would be considered as income even if it wasn't court ordered.
Per the IRS, the following are Alimony (spousal support) Requirements:
Amounts paid under divorce or separate maintenance decrees or written separation agreements entered into between you and your spouse or former spouse are considered alimony for federal tax purposes if:
- You and your spouse or former spouse do not file a joint return with each other
- You pay in cash (including checks or money orders)
- The payment is received by (or on behalf of) your spouse or former spouse
- The divorce or separate maintenance decree or written separation agreement does not say the payment is not alimony
- If legally separated under a decree of divorce or separate maintenance, you and your former spouse are not members of the same household when you make the payment
- You have no liability to make the payment (in cash or property) after the death of your spouse or former spouse, and
- Your payment is not treated as child support or a property settlement
Payments Not Alimony
