If you have money in a retirement savings plan where you work, you may be able to borrow some of that money. Check the plan language to see if loans are allowed for business purposes. You will have to pay interest on the money you borrow from your plan, but that's not all bad. Because the money you're borrowing is yours, the interest goes back into your plan. Generally, unless you've reached the age of 59, you wouldn't be wise to simply take rather than borrow money from the tax deferred plan.
Early withdrawals are subject to a penalty tax.
After age 59H, however, IRS rules allow you to withdraw funds without paying a penalty tax. Don't borrow from an IRA .