can i write off lunch meals for my business expenses?

Yes, you can write off lunch meals. I'm here to provide some information about this so you will be guided accordingly, Clock.

Meals are 50% deductible if this is directly related to your business such as business meals with clients, employees, and office snacks, as mentioned in the guidelines.

On the other hand, you can deduct 100% for meals at company-wide parties or food provided for free to the public. You'll only have to make sure to categorize lunch meals to easily track meal expenses. 

To learn more about QuickBooks Self-Employed categories, check this article for more information: Schedule C and Expense Categories in QuickBooks Solopreneur and QuickBooks Self-Employed.

Furthermore, to find out what federal estimated quarterly tax payments are due, I have this handy article for your guide: Pay Federal Estimated Quarterly Taxes in QuickBooks Self-Employed. 

If you have any other questions or concerns about writing lunch meals. let us know so we can get back to you. I'll be more than happy to help.