Overbidding increases your monthly costs directly, because you take out a higher mortgage than the asking price. How much extra you pay per month depends on the amount by which you overbid and the mortgage interest rate you pay. In this article, we answer the most frequently asked questions about the financial consequences of overbidding.
How much extra do you pay per month when overbidding?
For every €10,000 extra you bid above the asking price, your monthly costs rise by roughly €35 to €50 gross, depending on your interest rate and loan term. If you bid €30,000 more than the asking price, you can quickly end up paying €100 to €150 extra per month. This may seem manageable, but it adds up significantly over the term of your mortgage.
Suppose you buy a home for €400,000 but bid €430,000 for it. At an interest rate of 4% and an annuity mortgage over 30 years, you pay approximately €120 more per month than if you had paid the asking price. Over the full term, that amounts to well over €43,000 in additional interest costs. It is therefore important to consciously weigh this amount against the value you place on the property.
What happens if you bid more than the appraised value?
If you bid more than the appraised value of a property, the bank will only finance the appraised amount. The difference between your bid and the appraised value must be paid out of your own pocket. This is also known as the “gap” between bid and appraisal, and it can make a significant dent in your savings.
In the Netherlands, banks provide a mortgage of no more than the market value of the property, as determined by an independent appraiser. If you bid €350,000 on a property appraised at €320,000, you must contribute that €30,000 yourself, on top of the buyer’s costs you already pay. This makes overbidding above the appraised value a risk that you need to calculate carefully in advance.
Also keep in mind that appraisers in a heated market sometimes appraise more conservatively than actual sale prices. If in doubt, request an indicative appraisal in advance so you know how much equity you will need if you want to overbid.
What additional costs increase when you overbid?
In addition to your monthly mortgage payments, a number of one-time costs also increase when you overbid. The two most important are transfer tax and the mortgage deed. Both are based on the purchase price, so the higher your bid, the more you pay.
- Transfer tax: For first-time buyers this is 0% up to a certain threshold; for other buyers it is 2% of the purchase price. A higher purchase price therefore means more tax.
- Notary costs: The costs for the mortgage deed and transfer deed are often partly dependent on the purchase price and increase slightly with it.
- Appraisal costs: These are generally fixed, but a higher purchase price can in some cases lead to a higher fee bracket.
- Bank guarantee or deposit: Typically 10% of the purchase price. With a higher bid, this amount is therefore also higher, requiring more liquidity.
All of these additional costs are one-time expenses, but they add up quickly with a higher bid. Always calculate the total purchase price, including all additional costs, before placing a bid.
Does overbidding affect the mortgage interest deduction?
Yes, overbidding indirectly affects the mortgage interest deduction. Because you take out a higher mortgage, you pay more interest, and you can also deduct more on that higher interest amount. In that sense, you benefit slightly more in terms of tax, but this does not outweigh the higher costs you incur.
The mortgage interest deduction in the Netherlands applies only to the portion of the loan that is actually financed by the bank. The portion by which you overbid above the appraised value and pay from your own funds is not borrowed money and therefore yields no interest deduction. Moreover, the mortgage interest deduction in the Netherlands has been gradually phased down for years, meaning the tax benefit is smaller than it used to be.
In short: do not rely on the mortgage interest deduction as a justification for a high bid. The tax benefit is limited and will decrease further in the future.
When is overbidding financially responsible?
Overbidding is financially responsible when you have sufficient equity to bridge the gap with the appraised value, your monthly costs remain within a healthy budget, and the property fits your long-term plans. It becomes risky when you commit all your savings and have no buffer left for unexpected costs.
A rule of thumb used by many financial advisors: your monthly housing costs should not exceed 30 to 35% of your net monthly income. Use this as a benchmark when determining your maximum bid. Also ask yourself how long you plan to live in the property. With a short time horizon, overbidding is riskier, because when you sell you may not recoup enough to recover the premium you paid.
Factors that make overbidding more responsible:
- The property is located in an area with structurally rising property values
- You have sufficient equity to finance the difference with the appraised value yourself
- You plan to stay in the property for at least five to seven years
- Your monthly costs remain comfortably within your budget, even in the event of an interest rate increase
- You have a financial buffer for maintenance and unexpected costs
How we help you determine a responsible bid
Placing a bid in a competitive market requires more than just a gut feeling. At Urban Homies, we guide you from the first conversation all the way to the notary. We analyze the property’s file, compare recent sale prices in the area, and help you formulate a personalized bid that is competitive without overbidding unnecessarily. That way, you know exactly where you stand, including in terms of monthly costs and additional expenses.
We handle all communication with the selling agent, appraiser, and notary, so you can focus on the decision that matters. Whether you are buying for the first time or already have experience, our buying guidance is focused on a clear and careful process. Want to know what a realistic bid is for the property you have in mind? Get in touch and we will be happy to think it through with you.
