IRS · Official form

Form 6627, Environmental Taxes

Form 6627 figures environmental excise taxes, including the petroleum Superfund tax, taxes on ozone-depleting chemicals, and Superfund chemical taxes. It is filed as an attachment to Form 720. Fill in the official PDF below.

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What is 6627?

Form 6627 computes several environmental taxes: the tax on crude oil received at a refinery and petroleum products entered for consumption, taxes on ozone-depleting chemicals (ODCs) and imported products that contain or were made with ODCs, the floor stocks tax on ODCs held for sale or use, and the Superfund excise taxes on listed taxable chemicals and imported taxable substances.

Each tax has its own part of the form with rate tables by chemical or product. The totals carry to the environmental tax lines of Form 720, Quarterly Federal Excise Tax Return, which is where the tax is actually reported and paid.

Who files 6627?

Refiners and importers subject to the petroleum Superfund tax on crude oil and petroleum products
Manufacturers, producers, and importers of taxable chemicals subject to Superfund chemical taxes
Importers of ODCs or products containing ozone-depleting chemicals
Businesses holding ODCs subject to the floor stocks tax on the inventory date

How to fill out 6627

Identify which environmental taxes apply to your business: petroleum, ODCs, imported ODC products, floor stocks, or taxable chemicals.
Complete the part of the form for each applicable tax, entering barrels, tons, or weights and applying the rate tables.
Total each tax and carry the amounts to the corresponding IRS numbers on Form 720.
Attach Form 6627 to your quarterly Form 720 filing.
Download the completed PDF for your records and file Form 720 with payment by the quarterly due date.

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Page 1 140 fields

Name (as shown on Form 720)

Quarter ending

Employer identification number (EIN)

Part I. Tax on Petroleum. Row: 1. Crude oil received at a U.S. refinery. Column: (a) Barrels.

Row: 2. Crude oil taxed before receipt at refinery. Column: (a) Barrels.

Row: 3. Taxable crude oil. Subtract line 2 from line 1. Enter the result on both lines 3(a) and 3(b), column (a). Enter in column (c) the

Row: 4. Crude oil used in the U.S. before the tax was imposed. Multiply column (a) by column (b) and enter the amount of tax in column (c).

Row: 5. Total domestic petroleum superfund tax (add lines 3(a) and 4(a), column (c)). Enter here and on Form 720 on the line for I R S No.

Row: 7. Imported petroleum products superfund tax. Enter the number of barrels imported in column (a). (Must agree with line 8, column

Part I I. Tax on Chemicals (Other Than Ozone-Depleting Chemicals (O D Cs)), I R S No. 54. Row: 1. Acetylene (C2 H2). Column: (a) Tons.

Row: 1. Acetylene (C2 H2). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 1. Acetylene (C2 H2). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 2. Ammonia (N H3). Column: (a) Tons.

Row: 2. Ammonia (N H3). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 2. Ammonia (N H3). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 3. Antimony (S b). Column: (a) Tons.

Row: 3. Antimony (S b). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 3. Antimony (S b). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 4. Antimony trioxide (S b2 O3). Column: (a) Tons.

Row: 4. Antimony trioxide (S b2 O3). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 4. Antimony trioxide (S b2 O3). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 5. Arsenic (A s). Column: (a) Tons.

Row: 5. Arsenic (A s). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 5. Arsenic (A s). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 6. Arsenic trioxide (A s2 O3). Column: (a) Tons.

Row: 6. Arsenic trioxide (A s2 O3). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 6. Arsenic trioxide (A s2 O3). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 7. Barium sulfide (B a S). Column: (a) Tons.

Row: 7. Barium sulfide (B a S). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 7. Barium sulfide (B a S). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 8. Benzene (C6 H6). Column: (a) Tons.

Row: 8. Benzene (C6 H6). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 8. Benzene (C6 H6). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 9. Bromine (B r). Column: (a) Tons.

Row: 9. Bromine (B r). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 9. Bromine (B r). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 10. Butadiene (C4 H6). Column: (a) Tons.

Row: 10. Butadiene (C4 H6). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 10. Butadiene (C4 H6). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 11. Butane (C4 H10). Column: (a) Tons.

Row: 11. Butane (C4 H10). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 11. Butane (C4 H10). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 12. Butylene (C4 H8). Column: (a) Tons.

Row: 12. Butylene (C4 H8). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 12. Butylene (C4 H8). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 13. Cadmium (C d). Column: (a) Tons.

Row: 13. Cadmium (C d). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 13. Cadmium (C d). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 14. Chlorine (C l). Column: (a) Tons.

Row: 14. Chlorine (C l). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 14. Chlorine (C l). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 15. Chromite (F e C r2 O4). Column: (a) Tons.

Row: 15. Chromite (F e C r2 O4). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 15. Chromite (F e C r2 O4). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 16. Chromium (C r). Column: (a) Tons.

Row: 16. Chromium (C r). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 16. Chromium (C r). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 17. Cobalt (C o). Column: (a) Tons.

Row: 17. Cobalt (C o). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 17. Cobalt (C o). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 18. Cupric oxide (C u O). Column: (a) Tons.

Row: 18. Cupric oxide (C u O). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 18. Cupric oxide (C u O). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 19. Cupric sulfate (C u S O4). Column: (a) Tons.

Row: 19. Cupric sulfate (C u S O4). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 19. Cupric sulfate (C u S O4). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 20. Cuprous oxide (C u2 O). Column: (a) Tons.

Row: 20. Cuprous oxide (C u2 O). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 20. Cuprous oxide (C u2 O). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 21. Ethylene (C2 H4). Column: (a) Tons.

Row: 21. Ethylene (C2 H4). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 21. Ethylene (C2 H4). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 22. Hydrochloric acid (H C I). Column: (a) Tons.

Row: 22. Hydrochloric acid (H C I). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 22. Hydrochloric acid (H C I). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 23. Hydrogen fluoride (H F). Column: (a) Tons.

Row: 23. Hydrogen fluoride (H F). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 23. Hydrogen fluoride (H F). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 24. Lead oxide (P b O). Column: (a) Tons.

Row: 24. Lead oxide (P b O). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 24. Lead oxide (P b O). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 25. Mercury (H g). Column: (a) Tons.

Row: 25. Mercury (H g). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 25. Mercury (H g). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 26. Methane (C H4). Column: (a) Tons.

Row: 26. Methane (C H4). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 26. Methane (C H4). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 27. Naphthalene (C10 H8). Column: (a) Tons.

Row: 27. Naphthalene (C10 H8). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 27. Naphthalene (C10 H8). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 28. Nickel (N i). Column: (a) Tons.

Row: 28. Nickel (N i). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 28. Nickel (N i). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 29. Nitric acid (H N O3). Column: (a) Tons.

Row: 29. Nitric acid (H N O3). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 29. Nitric acid (H N O3). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 30. Phosphorus (P). Column: (a) Tons.

Row: 30. Phosphorus (P). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 30. Phosphorus (P). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 31. Potassium dichromate (K2 C r2 O7). Column: (a) Tons.

Row: 31. Potassium dichromate (K2 C r2 O7). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 31. Potassium dichromate (K2 C r2 O7). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 32. Potassium hydroxide (K O H). Column: (a) Tons.

Row: 32. Potassium hydroxide (K O H). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 32. Potassium hydroxide (K O H). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 33. Propylene (C3 H6). Column: (a) Tons.

Row: 33. Propylene (C3 H6). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 33. Propylene (C3 H6). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 34. Sodium dichromate (N a C r2 O7). Column: (a) Tons.

Row: 34. Sodium dichromate (N a C r2 O7). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 34. Sodium dichromate (N a C r2 O7). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 35. Sodium hydroxide (N a O H). Column: (a) Tons.

Row: 35. Sodium hydroxide (N a O H). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 35. Sodium hydroxide (N a O H). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 36. Stannic chloride (S n C l4). Column: (a) Tons.

Row: 36. Stannic chloride (S n C l4). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 36. Stannic chloride (S n C l4). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 37. Stannous chloride (S n C l2). Column: (a) Tons.

Row: 37. Stannous chloride (S n C l2). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 37. Stannous chloride (S n C l2). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 38. Sulfuric acid (H2 S O4). Column: (a) Tons.

Row: 38. Sulfuric acid (H2 S O4). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 38. Sulfuric acid (H2 S O4). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 39. Toluene (C7 H8). Column: (a) Tons.

Row: 39. Toluene (C7 H8). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 39. Toluene (C7 H8). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 40. Xylene (C8 H10). Column: (a) Tons.

Row: 40. Xylene (C8 H10). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 40. Xylene (C8 H10). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 41. Zinc chloride (Z n C l2). Column: (a) Tons.

Row: 41. Zinc chloride (Z n C l2). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 41. Zinc chloride (Z n C l2). Column: (c) Tax (multiply column (a) by column (b)). Cents.

Row: 42. Zinc sulfate (Z n S O4). Column: (a) Tons.

Row: 42. Zinc sulfate (Z n S O4). Column: (c) Tax (multiply column (a) by column (b)). Dollars.

Row: 42. Zinc sulfate (Z n S O4). Column: (c) Tax (multiply column (a) by column (b)). Cents.

43. Total Chemical Tax (add lines 1–42, column (c)). Enter here and on Form 720 on the line for I R S No. 54. Dollars.

43. Cents.

Page 2 79 fields

Page 2. Part I I I. Tax on Imported Chemical Substances, I R S No. 17. Row: 1. Column: (a) Imported chemical substance.

Row: 1. Column: (b) Tons.

Row: 1. Column: (c) Taxable chemical used in manufacture of substance. Line 1.

Row: 1. Column: (c) Taxable chemical used in manufacture of substance. Line 2.

Row: 1. Column: (d) Conversion factor or entry value. Line 1.

Row: 1. Column: (d) Conversion factor or entry value. Line 2.

Row: 1. Column: (e) Rate. Line 1.

Row: 1. Column: (e) Rate. Line 2.

Row: 1. Column: (f) Tax (see instructions). Line 1.

Row: 1. Column: (f) Tax (see instructions). Line 2.

Row: 2. Column: (a) Imported chemical substance.

Row: 2. Column: (b) Tons.

Row: 2. Column: (c) Taxable chemical used in manufacture of substance. Line 1.

Row: 2. Column: (c) Taxable chemical used in manufacture of substance. Line 2.

Row: 2. Column: (d) Conversion factor or entry value. Line 1.

Row: 2. Column: (d) Conversion factor or entry value. Line 2.

Row: 2. Column: (e) Rate. Line 1.

Row: 2. Column: (e) Rate. Line 2.

Row: 2. Column: (f) Tax (see instructions). Line 1.

Row: 2. Column: (f) Tax (see instructions). Line 2.

Row: 3. Column: (a) Imported chemical substance.

Row: 3. Column: (b) Tons.

Row: 3. Column: (c) Taxable chemical used in manufacture of substance. Line 1.

Row: 3. Column: (c) Taxable chemical used in manufacture of substance. Line 2.

Row: 3. Column: (d) Conversion factor or entry value. Line 1.

Row: 3. Column: (d) Conversion factor or entry value. Line 2.

Row: 3. Column: (e) Rate. Line 1.

Row: 3. Column: (e) Rate. Line 2.

Row: 3. Column: (f) Tax (see instructions). Line 1.

Row: 3. Column: (f) Tax (see instructions). Line 2.

Include amounts from any additional sheets. Enter here and on Form 720 on the line for I R S No. 17

98. Elections. If you elect to report the tax on post-1989 O D Cs at the time you sell or use a mixture containing such chemicals instead

If you elect to report the tax on post-1990 O D Cs at the time you sell or use a mixture containing such chemicals instead of when you make

Row: 1. Column: (a) O D C.

Row: 1. Column: (b) Number of pounds.

Row: 1. Column: (c) Tax per pound (see Part I V instructions).

Row: 1. Column: (d) Tax (multiply column (b) by column (c)).

Row: 2. Column: (a) O D C.

Row: 2. Column: (b) Number of pounds.

Row: 2. Column: (c) Tax per pound (see Part I V instructions).

Row: 2. Column: (d) Tax (multiply column (b) by column (c)).

Row: 3. Column: (a) O D C.

Row: 3. Column: (b) Number of pounds.

Row: 3. Column: (c) Tax per pound (see Part I V instructions).

Row: 3. Column: (d) Tax (multiply column (b) by column (c)).

Enter the total here and on Form 720 on the line for I R S No. 98

19. Election. If you elect to report the tax on imported products at the time you import the products instead of when you sell or use the

Row: 1. Column: (a) Imported product and the applicable O D C.

Row: 1. Column: (b) Number of products.

Row: 1. Column: (c) O D C weight of product.

Row: 1. Column: (d) Tax per pound.

Row: 1. Column: (e) Entry value.

Row: 1. Column: (f) Tax (see Part V instructions).

Row: 2. Column: (a) Imported product and the applicable O D C.

Row: 2. Column: (b) Number of products.

Row: 2. Column: (c) O D C weight of product.

Row: 2. Column: (d) Tax per pound.

Row: 2. Column: (e) Entry value.

Row: 2. Column: (f) Tax (see Part V instructions).

Row: 3. Column: (a) Imported product and the applicable O D C.

Row: 3. Column: (b) Number of products.

Row: 3. Column: (c) O D C weight of product.

Row: 3. Column: (d) Tax per pound.

Row: 3. Column: (e) Entry value.

Row: 3. Column: (f) Tax (see Part V instructions).

Enter the total here and on Form 720 on the line for I R S No. 19

Part V I. Tax on Floor Stocks of O D Cs, I R S No. 20. Row: 1. Column: (a) O D C.

Row: 1. Column: (b) Number of pounds.

Row: 1. Column: (c) Tax per pound (see Part V I instructions).

Row: 1. Column: (d) Tax (multiply column (b) by column (c)).

Row: 2. Column: (a) O D C.

Row: 2. Column: (b) Number of pounds.

Row: 2. Column: (c) Tax per pound (see Part V I instructions).

Row: 2. Column: (d) Tax (multiply column (b) by column (c)).

Row: 3. Column: (a) O D C.

Row: 3. Column: (b) Number of pounds.

Row: 3. Column: (c) Tax per pound (see Part V I instructions).

Row: 3. Column: (d) Tax (multiply column (b) by column (c)).

Enter the total here and on Form 720 on line for I R S No. 20

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Frequently asked questions

Is Form 6627 filed on its own?

No. It is an attachment to Form 720, the Quarterly Federal Excise Tax Return. Form 6627 does the calculation and Form 720 reports and pays the tax.

What are the Superfund chemical taxes?

They are excise taxes on a list of taxable chemicals sold or used by manufacturers, producers, or importers, and on imported substances made from those chemicals. Rates vary by chemical, so use the current rate table in the form and instructions.

Form 6627, Environmental Taxes

What is 6627?

Who files 6627?

How to fill out 6627

Quick fill 6627 on this page

Frequently asked questions

Related forms

Form 720, Quarterly Federal Excise Tax Return

Form 4136, Credit for Federal Tax Paid on Fuels

Form 2290, Heavy Highway Vehicle Use Tax Return