Costs are profit-deductible (tax wise) even when you payed from a private account. Just add the invoice to your business administration and state that it was paid with private funds.
Your book keeper will treat it as a private deposit in your company (applies for companies which don't have an own legal entity, e.g. eenmanszaken).
If you have a BV, SA or Ltd you can ask the company to refund the invoice to you.