Amortization constituting the cost of using fixed assets in business operations is a component of the company’s total costs. Cost reductions in the area of amortization can be sought on many levels, namely when valuing the initial value, choosing the amortization method, shaping amortization rates. The article presents general principles of amortization of fixed assets, describes available amortization methods, indicating the procedure for calculating amortization amounts, and compares selected methods in the aspect of the impact of amortization on the level of financial result on base the case study.