Expect to pay about 300 euro in landing/ATC/handing fees though for a light single to land at Schiphol. VFR flights < 5700 kg MTOW do not need slots for VFR, but if you want to go IFR, or are heavier than 5700 kg, you need to request a slot. AIP EHAM AD 2.20 refers.
A much better option, and much cheaper (though still fairly expensive) is Lelystad. From the airfield it's a 14-minute busride to Lelystad station, followed by a 40-minute train ride to Amsterdam Central Station. Total journey time is 1:15. Lelystad has a nice hard runway and plenty parking space but it's A/G only and can get very busy, particularly during weekends.
Hilversum (EHHV) is laterally closer to Amsterdam but the journey by public transport does take longer (1:25 or so). It's also a relatively hard to find, grass airfield lying within some complicated airspace, with relatively short runways and trees at both ends. But it is cheaper than Lelystad.
Public transport journey planner:
9292ov.nl - Journeyplanner for all Dutch public transport