Check how much rent you will be able to charge. Do your research and look at similar properties in the area to get a guide. Work out high and low season rates as you will be able to charge more during school holidays for example, Try to keep your rates competitive, there’s a lot of choice out there and customers will not pay over the odds.
Check out your tax obligations. Any money you receive in rent will be taxable. Always do your research and get good local financial advice. It is better to fully comply with local taxation than to have any nasty surprises further down the line.
In Spain for example as a non resident you will be liable to pay 24% tax on any rental income this of course can be offset by other expenses connected with the rental such as Maintenance, repairs, cleaning/changeover costs and advertising. It is worth retaining a local accountant to file your annual tax returns as they will usually manage to save far more than the cost of their services.
There will always be other charges or taxes on your property regardless of where it is. Just like we have council tax and water rates in the UK. Make sure you know what these charges are and account for them.
Utility Bills. Gas, Water, Electricity, Telephone etc. Unlike with a long term rental holiday makers won’t be taking over the payment of your bills. Think about this when equipping your home. Use low energy lighting and restrict the usage of high consumption items like air conditioning.