The local school district pays me a one-time stipend for my coaching. This is reported on a W2 with all deductions. This is part of my business and the contract is year to year. How do I report this self-employed business income?

As a soccer coach, I get paid for coaching teams and running camps or other training sessions. This past year I only received income for coaching a school soccer team. This is a 1-year renewable contract that pays a one-time stipend (even though the work is year-round).
This income is reported on a W2 with all deductions made.
I always complete the self-employed tax forms but in the past had other income sources and appropriate 1099's. This year I have no 1099 and my only business income was from the school contract. Where do I report this income since it was already reported and taxed as a W2?

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