Estimated tax payment? Capital Gains

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I’m confused about whether or not I need to make an estimated tax payment. I’m researching online but I’m finding conflicting information. I sold a rental property last month. I am not doing a 1031 exchange. I read online that if my taxes are more this year than last year I don’t have to make a payment. My W2 income will be almost double what it was last year. Can anyone please help me understand this?