Learn all you need to know about SMLLCs Single-member LLCs are the business entity of choice for small businesses with one owner. With an SMLLC, you get personal liability protection, pass-through taxation, and flexibility of management. Nolo’s Guide to Single-Member LLCs has all the essential information you need to decide whether an SMLLC is the right choice for your business. It This edition explains the Tax Cuts and Jobs Act, most importantly the 20% pass-through deduction available to SMLLC owners. David M. Steingold is a Nolo author and a Michigan attorney. His practice covers multiple areas, including business law.