TurboTax Business is not an "upgrade." TurboTax Business is a separate TurboTax program for preparing corporate, estate and trust income tax returns. Your S corp's SEP contribution to your SEP-IRA account is a deduction on your S corp's Form 1120S, not on your individual tax return.
Do not confuse TurboTax Business with TurboTax Home & Business for sole-proprietors.
