I opened an ETRADE SOLO 401k partly due to promotional offer of cash ($300) plus 500 free trades. They would not fulfil the promotion because outside funds were transferred to account before promo was applied - they would not backdate or make retroactive the application of the promotion. Nowhere in their marketing literature is this exception to the promotion noted. Apparently you must notify them, in writing of some sort, that you would like the promotion applied to the new account before any funds transfer into the account occurs. I'm immediately pulling the funds out from E*TRADE and will use TD Ameritrade who promised to deposit the same promotional cash bonus into a new account immediately. Beware of BAIT AND SWITCH! Here is the promo details copy/pasted from the E*Trade site (12/23/2016): Here's how to get your cash credit: Mail or fax your completed small business retirement plan application to us Call Customer Service at [protected] once your account is open to be enrolled in and receive the offer. Credits for cash or securities will be made based on deposits of new funds or securities from external accounts made within 45 days of account open, as shown in the chart below. Your account will be credited within one week of the close of the 45-day window, as follows: Receive Deposit or Transfer $2, 500 + free trades $1, 000, 000+ $1, 200 + free trades $500, 000 - $999, 999 $600 + free trades $250, 000 - $499, 999 $300 + free trades $100, 000 - $249, 999 $200 + free trades $25, 000 - $99, 999 Only Free Trades $10, 000 - $24, 999 Here's how to get your free trades: You will receive up to 500 free trade commissions for each stock or options trade executed within 60 days of the deposited funds being made available for investment in the new account (excluding options contract fees). You will pay $9.99 for your first 149 stock or options trades and $7.99 thereafter up to 500 stock or options trades (plus 75¢ per options contract). Your account will be credited for trades within a week. Account must be funded within 60 days of account open with funds from outside of E*TRADE. More important information Offer valid for one new E*TRADE Securities retirement account opened by 12/31/2016 and funded within 60 days of account opening with $10, 000 or more with funds from outside of E*TRADE. Excludes E*TRADE Securities brokerage and E*TRADE Bank accounts. You will not receive cash compensation for any unused free trade commissions. Excludes current E*TRADE Financial Corporation associates, non-U.S. residents, and any jurisdiction where this offer is not valid. This offer is not valid for business, Custodial, Estate, LLC, Sole Proprietorship, Unincorporated Organization or E*TRADE Bank accounts. New funds or securities must remain in the account (minus any trading losses) for a minimum of 6 months or the credit may be surrendered. One promotion per customer. E*TRADE Securities reserves the right to terminate this offer at any time.