Taxes don't work like that.
LLC - single owner - defaults to a disregarded entity. You recognize income as you earn it and pay taxes in the current year, including self-employment tax. The entity's bank account is your bank account, as far as the IRS is concerned. Whether you reinvest the money in other businesses or spend it all on candy, it's still your money that you earned and pay taxes on.
LLC - partnership - not a disregarded entity, but same kind of income recognition and self employment tax.
LLC - S-Corp - Seperate entity, pays you as an employee and distributions as an owner. You can shield some income from self-employment tax, but otherwise pay income taxes in the current year when income is earned. Even if you don't pay it to yourself and keep it in the bank. Taxes when earned, not when distributed.
LLC - C-Corp. To a limited degree, the C-Corp can keep money in it and you won't be personally taxed until it comes out as wages or a dividend. BUT the C-Corp itself has a tax rate and pays taxes when it earns money.
This is the whole reason companies like Apple have billions of dollars overseas. They can't repatriate it without a giant tax bill, even if they're "saving it" for future investment.
As for your stand - it depends on your business profits and overall tax rate. Most people take the full Section 179 deduction on equipment in the year purchased, but not always. Rule of thumb is that paying taxes in the future is better than paying taxes now, due to the time value of money. Also, writing off equipment early can free up cash during your start-up phase by cutting the tax bill. If your business is in a loss situation, then you depreciate.