What You need to know about additional fees and Hidden costs when buying at an auction

30 July 2025
7 min read

Buying a property at an auction may be a thrilling opportunity, supplying the potential for acquiring real property at a lower price than the traditional marketplace. But, while the appeal of purchasing an asset at auction is simple, it’s crucial to be aware about the various fees and hidden prices related to such transactions. Often, these additional costs can significantly increase the total price of the property sometimes turning what appears to be a bargain into a less attractive investment. Understanding these hidden expenses is essential to avoid unexpected surprises and to ensure your auction property purchase remains both financially viable and strategically sound.

When purchasing a property at auction, the bid amount is rarely the only cost you'll incur. The true fee of acquiring an auction property can include a wide range of additional costs, some of which may not be immediately apparent. These fees typically fall into several categories: auction fees, taxes, closing costs and potential repairs or upgrades. Understanding these financial obligations in advance will help you budget effectively and make a well-informed decision before placing your bid.

Auction House Fees and Buyer’s Premiums

One of the most common additional costs when buying at auction is the buyer’s premium. This is an extra percentage added to the final hammer price of the property. Auction houses typically charge this fee to cover their operating costs and to generate profit, and it can range anywhere from 2% to 10% or more of the final bid price. It is essential to be aware of this fee before participating in an auction, as it can significantly increase the total cost of the property.

For example, if a property sells for $100,000 and the auction house charges a 5% buyer’s premium, the final amount you will pay will be $105,000. While this may seem like a small addition, for higher-priced properties, the premium can amount to thousands of dollars. Always check the auction house’s terms and conditions in advance to understand exactly how much you will be expected to pay beyond the winning bid.

In addition to the buyer’s premium, some auction houses may charge administrative fees or other service-related charges. These might include fees for cataloguing the property, processing your registration or conducting background checks or due diligence. These charges are often non-negotiable and can add up quickly. If you are not careful, they can turn what appeared to be a bargain into an overpriced purchase. Make sure you are fully aware of all the costs involved before committing to an auction.

Taxes and Transfer Fees

While the auction process itself is fast-paced and exciting, property transactions often come with additional costs in the form of taxes and transfer fees. Depending on your location, there are various taxes that apply when purchasing property at auction. These may include stamp duty (or transfer tax), capital gains tax (if applicable) and other local taxes related to real estate transactions.

Stamp duty is one of the most common taxes. It is a government tax based on the purchase price of the property and is due upon completion of the transaction. Stamp duty rates vary by region but are typically calculated as a percentage of the sale price. In some jurisdictions, the rate is progressive meaning the more expensive the property, the higher the percentage you will pay. It is important to factor this into your budget, as it can sometimes add thousands of dollars to your total cost.

Other transfer fees may also apply, such as fees for registering the property title in your name. These are additional expenses that you might not have anticipated. In some cases, the seller may be responsible for certain taxes, but it is always best to confirm this before bidding. Consulting a legal expert or a local real estate professional will help you understand exactly which taxes and fees apply to your auction purchase.

Closing Costs and Legal Fees

In addition to auction-specific charges, buying a property at auction usually involves closing costs which can be substantial and shouldn’t be overlooked when estimating your total expenses. While these costs vary depending on location and property type, closing fees generally include several items related to finalising the transaction.

Title search and title insurance are among the most common closing costs when purchasing a property at auction. A title search ensures the property has a clear title free of liens, unpaid debts or legal disputes. Title insurance protects you from future claims against the property. These costs can vary with the value of the property, so it is wise to budget for them in advance.

You may also need to pay legal fees for drafting the sale agreement or handling other paperwork. While some auction houses provide standard contracts, others may require you to hire a solicitor or legal advisor to review documents adding another layer of expense to your purchase.

Moreover, the closing timeline for auction properties is often much shorter than traditional real estate transactions. Buyers are typically required to pay the full balance within a set period often within 30 days or less. This accelerated schedule can add financial pressure, especially if you need to arrange financing or complete documentation. Make sure your funds or financing are in place before bidding to avoid penalties or delays.

Hidden Costs and Property Maintenance

One of the most important factors to consider when buying a property at auction is its physical condition. Unlike traditional sales, auction properties are usually sold “as-is,” meaning the seller is not responsible for any repairs or issues with the property’s state. This can lead to significant hidden costs that may not be immediately obvious.

Before bidding, it is crucial to gain a clear understanding of the property's condition. If possible, arrange a professional inspection to identify any structural, electrical or plumbing issues. Auction properties are often distressed or in need of extensive renovations and these costs can add up quickly. If major work is needed (e.g., roof repairs, foundation work or system upgrades), the repair expenses can easily run into tens of thousands of dollars.

Even minor updates like replacing carpets, painting or cosmetic fixes can increase your total investment. If the property requires substantial improvements, you must factor these into your budget to ensure your investment will still offer a good return. Many auction properties are priced lower to reflect the condition, but it is essential to understand the true scope of work required before moving forward.

Unexpected Liabilities and Risks

Auction properties especially distressed or foreclosed homes may come with unforeseen liabilities. These can include unpaid property taxes, homeowners' association (HOA) fees or even legal claims against the property. In some cases, previous owners may leave behind financial obligations that can transfer to the new buyer.

To protect yourself, conduct thorough due diligence before the auction. Research the property’s history to uncover any unpaid debts, tax liens or legal judgements that could affect your ownership. This information is usually available through local property records or by consulting a real estate attorney. Being proactive in identifying potential risks can help you avoid costly surprises that could impact your investment.

Conclusion

Understanding the full range of additional costs and hidden fees involved in buying a property at auction is critical to making a sound investment. From buyer’s premiums and taxes to repair costs and legal fees, these expenses can quickly add up and affect your overall profitability. By carefully considering all associated costs, you can avoid financial pitfalls and make a smart, strategic decision when bidding on auction properties.

READ MORE: How to properly assess the value of auction properties