You could use dutycalculator.com but they only provide 5 free calculation
I shipped a shaver from US using DHL and based on http://tariff.customs.gov.my/ code 8510 10 000 or anything that start from code 8510 for hair removing product, there's no duty fee only sales tax 10% need to be paid. When I received the package Monday  from DHL on tax invoice I being charged 20% on duty fee and 10% sales tax.

I check the code that they use for the shaver its 3926 90 990 (others), I clearly stated on the commercial invoice as Braun Shaver, called up DHL about this and they insist that I need to pay for that 20% duty fee. Clearly they put a wrong HS code for my item.

And DHL rep said to I need to meet up with customs to get this solve. Does anyone claim any refund on duty fee from customs before?

Just to let you know that there's something called 'kos tambang dagangan' where they add approximately RM380 to the value of your item + shipping so your item's worth in custom's eye is around RM650+ not RM267 hence why you got taxed. Welcome to the world of courier and Malaysian custom.

The additional cost is applied to everything shipped using express courier: Fedex, DHL, etc. You can read about it here.

As you can see from that post, parcels from US has RM380 additional minimum charge. Basically you either don't ship anything taxable with express courier or you minimize it to RM120 for your item+shipping. It's ridiculous I know. Who will pay premium for shipping for a cheap item? 

You also have to add your shipping cost to the calculation so even if it's RM30 to ship via courier, your USD30 item will be taxed. For your USD200 item, it'll be RM660+RM380+shipping courier cost=total item cost x tax rate.

If I'm not wrong, importing phone has no tax but you've to pay and apply for SIRIM.

They only add in the additional cost if you ship via express courier, normal post is not affected. They also add less if your item is heavier than the minimum weight stated.

Basically yes, you either use normal postage with higher rate of missing parcel and longer transit time or you risk getting taxed with express courier. Of course this is not a hard and fast rule. I guess in the custom's eyes is that if you can afford to pay for express courier,  you can afford to pay tax 

Dear all

Recently I bought a shoe from overseas and it came with free shipping

What I dont understand was the customs assumed the shipping price and put rm380 as from the picture below...

Can I argue with FEDEX and asked them to return my taxable amount?

The shoes costs only at RM390