Research and Experimental Costs You can amortize your research and experimental costs, deduct themas current business expenses, or write them off over a 10-year period.If you choose to amortize these costs, deduct them in equal amountsover 60 months or more. The amortization period begins the month youfirst receive an economic benefit from the research. For a definitionof "research and experimental costs" and information on deductingthem as current business expenses, see chapter 11. Optional write-off method.Rather than amortize these costs or deduct them as a currentexpense, you have the option of deducting (writing off) research andexperimental costs ratably over a 10-year period beginning with thetax year in which you incurred the costs. For more information on the optional write-off method, see InternalRevenue Code section 59(e). Costs you can amortize.You can amortize costs chargeable to a capital account if both ofthe following apply. Noordwijk cheap hotelsYou paid or incurred the costs in your trade orbusiness. You are not deducting the costs currently. How to make the choice.To choose to amortize research and experimental costs, enter yourdeduction in Part VI of Form 4562 and attach it to your income taxreturn. Generally, you must file the return by the due date (includingextensions). However, if you timely filed your return for the yearwithout making the choice, you can still make the choice by filing anamended return within 6 months of the due date of the return(excluding extensions). Attach Form 4562 to the amended return andwrite "Filed pursuant to section 301.9100-2" on Form 4562.File the amended return at the same address you filed the originalreturn. Your choice is binding for the year it is made and for alllater years, unless you get IRS approval to change to a differentmethod. More information.For more information on amortizing research and development costs,see section 174 of the Internal Revenue Code and the relatedregulations.