Key facts
- HS subheading
- 3105.40
- Duty (MFN)
- Free
- National lines
- 2
- Tariff
- United States
- Chapter
- 31: Fertilisers
Summary
The United States tariff splits HS 3105.40 (ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)) into 2 national lines: 3105.40.00.10 (ammonium dihydrogenorthophosphate (Monoammonium phosphate)) and 3105.40.00.50 (other). Every United States line under 3105.40 is free of general (MFN) duty.
United States lines under 3105.40
The United States tariff splits HS 3105.40 (ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)) into 2 national lines: 3105.40.00.10 (ammonium dihydrogenorthophosphate (Monoammonium phosphate)) and 3105.40.00.50 (other).
Every United States line under 3105.40 is free of general (MFN) duty.
- 3105.40.00.10Ammonium dihydrogenorthophosphate (Monoammonium phosphate)Duty: Free
- 3105.40.00.50OtherDuty: Free
In other countries
No other national tariff on border.bot has live lines under 3105.40 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 3105.40?
The United States tariff splits HS 3105.40 (ammonium dihydrogenorthophosphate (monoammonium phosphate) and mixtures thereof with diammonium hydrogenorthophosphate (diammonium phosphate)) into 2 national lines: 3105.40.00.10 (ammonium dihydrogenorthophosphate (Monoammonium phosphate)) and 3105.40.00.50 (other).
What is the duty on HS 3105.40 in the United States?
Every United States line under 3105.40 is free of general (MFN) duty.
Sources and updates
The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.
This page was last updated on 9 October 2026.
Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.
Official source files: