You do not sy duty-free, it is used for items exempted from tax.

不含税销售额 - sales amount or price w/c is not inclusive of tax

various way of saying:

sales ( exclusive of tax)
sales ( tax non-inclusive)
tax-exclusive sales amount

Retailers Special Schemes VAT-exclusive purchases € 7200 Add Mark up (say 50%) € 3600 VAT-exclusive Sale price €10800 Add VAT @ 21.5% € 2322 VAT-inclusive sale price €13122 ...
www.revenue.ie/en/tax/vat/.../retailers-special-schemes.htm... - Cached - Similar



Value-added tax: international practice and problems - Google Books Result by Alan A. Tait - 1988 - Business & Economics - 450 pages
(Argentina, Bolivia, and Korea used a manufacturing sales tax with a credit ... Prices Inclusive or Exclusive of Tax? The final possible variation in VAT ...
books.google.com.ph/books?isbn=1557750122...

--------------------------------------------------
Note added at 19 mins (2009-11-15 15:00:16 GMT)
--------------------------------------------------

If your question is related to VAT, you may say VAT exclusive sales.

Financial Accounting - Google Books Result by a. R. Jennings - 2001 - Business & Economics - 652 pages
Most companies use VAT exclusive sales figures. 3.2 Input value comprises the cost of goods and services bought in from external sources. ...
books.google.com.ph/books?isbn=0826460224...

--------------------------------------------------
Note added at 4 days (2009-11-20 06:33:30 GMT)
--------------------------------------------------

Let me try to rephrase...
应征增值税货物及劳务不含税销售额
VAT-exclusive sales (amount) of VAT taxable goods & services.

Again, you can not say VAT or tax exempted, bec. it means they ane non-taxable.

应征增值税 - VAT taxable
货物及劳务 - goods & services
不含税 - tax-exclusive (if the tax is VAT, VAT-exclusive)
销售额 - sales or sales amount/figure

HM Revenue & Customs: VAT rates explained: standard, reduced, zero ...
Exempt goods and services are not taxable for VAT, so if you supply them, ...
www.hmrc.gov.uk/VAT/forms-rates/rates/rates.htm

HM Revenue & Customs: Purchases made before VAT registration: Jump to Reclaiming VAT on goods you bought before registration‎: You can reclaim VAT on goods you ... means they must relate to VAT taxable goods ...
www.hmrc.gov.uk/vat/start/register/purchases-before.htm - Cached - Similar

--------------------------------------------------
Note added at 4 days (2009-11-20 06:37:13 GMT)
--------------------------------------------------

e.g. basic amount: 100; VAT tax : 12%; quantity sold: 10 pcs.

VAT exclusive sales = 1,000.00
VAT tax = 120.00
VAT inclusive sales = 1,120.00 (amount that the buyer should pay)