Boxes 1 and 8 of the Form 5498 indicate that the brokerage reallocated what would have been an excess SEP contribution to be a regular traditional IRA contribution instead, so your business made no excess SEP contribution.
The funds that you contributed as this regular traditional IRA contribution (the box-1 amount) came from your compensation from the business, not not from funds of the business. If you are a sole proprietor, it all comes from your net profit from self-employment. If you are instead an employee of an S or C corp, the amount of the regular contribution should be reflected in your wages in boxes 1, 3 and 5 of your W-2.
Was a distribution paid to you equal to the amount in box 1 plus the gains attributable to the amount in box 1?
