TurboTax doesn't seem to offset my taxes owed when I lost money in my business

I have a job where I get W-2, investment income with capital gains, and single-member LLC.  After submitting my W-2, investment income I owe about $1k in taxes.  After submitting my business income and expenses my business incurred a lost of $4k from consultation, fees, advertisement, etc.  I was expecting the taxes owed to drop significantly but to my surprised it was unchanged.   What's going on?