The max contribution is 6% towards closing cost only. However if you are currently occupying the property and have been for at least one year with proof of payments and have a current lease, then FHA will let the Seller contribute towards your down payment. Otherwise you must have the minimum 3% down payment coming from your own account where it must have been for the past 60 days or the money can be a gift where the donor has to prove they have the money to gift with the fund being in their account for the past 60 days.
I want to point out that this is not an FHA policy. This is likely a lender guideline and not all lenders impose this.
The actual down payment requires on FHA per the 4155-1 R.5:
Maximum Loan-to-Value Percentages
(Purchase Transactions Only on Proposed and Existing Construction)
States with Average Closings Costs At or Below 2.1 Percent of Sales Price
• 98.75 percent: For properties with values/sales prices equal to or less than $50,000.
• 97.65 percent: For properties with values/sales prices in excess of $50,000 up to $125,000
• 97.15 percent: For properties with values/sales prices in excess of $125,000.
States with Average Closings Costs Above 2.1 Percent of Sales Price
• 98.75 percent: For properties with values/sales prices equal to or less than $50,000.
• 97.75 percent: For properties with values/sales prices in excess of $50,000.
So you have been brainwashed by the bankers telling you 3% dp.
Then the seller contribution limits:
A. Seller Contributions. The seller (or other interested third parties such as real estate agents, builders, developers, etc., or a combination of parties) may contribute up to six percent of the property's sales price toward the buyer's actual closing costs, prepaid expenses, discount points, and other financing concessions. Contributions exceeding six percent of the sales price or exceeding the actual cost of prepaid expenses, discounts points, and other financing concessions will be treated as inducements to purchase, thereby reducing the amount of the mortgage. Closing costs normally paid by the borrower are considered contributions if paid by the seller. Inducements to purchase are described in paragraph B, below.
The six percent limitation also includes seller payment for permanent and temporary interest rate buydowns and other payment supplements, payments of mortgage interest for fixed rate mortgages and GPMs only (but not principal), mortgage payment protection insurance, and payment of UFMIP.
Fees typically paid by the seller under local or state law, or local custom, such as real estate commissions, charges for pest inspections, fees paid for trustees to release a deed of trust, etc., are not considered contributions. The dollar limit for seller contributions is calculated by using Attachment A on the HUD-92900-PUR/HUD-92900WS. Each dollar exceeding FHA's six percent limit must be subtracted from the property's sales price before applying the appropriate LTV ratio.