HTS heading 8433 · Chapter 84

HTS 8433: Harvesting or threshing machinery, including straw or…

HTS heading 8433 covers harvesting or threshing machinery, including straw or fodder balers; grass or hay mowers; machines for cleaning, sorting or grading eggs, fruit or other agricultural produce, other than machinery of heading 8437; parts thereof. It has 12 tariff lines with a duty rate; the general (MFN) rates are Free (12 lines).

Imports may also owe Chapter 99 tariffs (Section 232, 301 or 201) depending on origin and date, plus the Merchandise Processing Fee and, by sea, the Harbor Maintenance Fee.

Rates from the 2026 HTS Revision 22, effective October 30, 2026. Source: U.S. International Trade Commission.

HTS code

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Country of origin

Customs value (USD)

Mode of transport

Entry date

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Tariff lines and duty rates

HTS code	Description	General	Column 2	Estimate
	Mowers for lawns, parks or sports grounds:
8433.11.00	Powered, with the cutting device rotating in a horizontal plane	Free	30%
8433.11.00.10	Electric mowers, including battery operated[No.]			Estimate →
	Riding mowers, other than electric:
8433.11.00.20	Under 5.2 kW[No.]			Estimate →
8433.11.00.30	5.2 kW and over but under 7.46 kW[No.]			Estimate →
8433.11.00.40	7.46 kW and over[No.]			Estimate →
	Other:
8433.11.00.50	Under 3.7 kW[No.]			Estimate →
8433.11.00.60	3.7 kW and over[No.]			Estimate →
8433.19.00	Other	Free	30%
8433.19.00.10	Greens mowers[No.]			Estimate →
8433.19.00.20	Gang cutting units[No.]			Estimate →
8433.19.00.30	Other riding mowers[No.]			Estimate →
	Other:
8433.19.00.40	Gasoline powered[No.]			Estimate →
8433.19.00.50	Other[No.]			Estimate →
8433.20.00	Other mowers, including cutter bars for tractor mounting	Free	Free
	Tractor drawn or for tractor mounting:
8433.20.00.20	Rotary cutter type[No.]			Estimate →
8433.20.00.40	Other[No.]			Estimate →
8433.20.00.60	Other[No.]			Estimate →
8433.30.00.00	Other haymaking machinery[No.]	Free	Free	Estimate →
8433.40.00.00	Straw or fodder balers, including pick-up balers[No.]	Free	Free	Estimate →
	Other harvesting machinery; threshing machinery
8433.51.00	Combine harvester-threshers	Free	Free
8433.51.00.10	Self-propelled[No.]			Estimate →
8433.51.00.90	Other[No.]			Estimate →
8433.52.00.00	Other threshing machinery[No.]	Free	Free	Estimate →
8433.53.00.00	Root or tuber harvesting machines[No.]	Free	Free	Estimate →
8433.59.00	Other	Free	Free
8433.59.00.10	Field forage harvesters[No.]			Estimate →
8433.59.00.90	Other[No.]			Estimate →
8433.60.00	Machines for cleaning, sorting or grading eggs, fruit or other agricultural produce	Free	Free
8433.60.00.10	Machines for cleaning, sorting or grading eggs[No.]			Estimate →
8433.60.00.90	Other[No.]			Estimate →
8433.90	Parts:
8433.90.10	Of mowers for lawns, parks or sports grounds	Free	30%
8433.90.10.10	Wheel and tire assemblies[No.]			Estimate →
8433.90.10.90	Other[No.]			Estimate →
8433.90.50	Other	Free	Free
	Of other mowers, harvesting machines and threshing machines:
8433.90.50.10	Road wheels[No.]			Estimate →
8433.90.50.25	Of haying machines and balers[No.]			Estimate →
8433.90.50.45	Other[No.]			Estimate →
8433.90.50.60	Of machines for cleaning, sorting or grading eggs[No.]			Estimate →
8433.90.50.80	Of machines for cleaning, sorting or grading fruit or other agricultural produce[No.]			Estimate →

39 lines shown. Statistical suffixes (the last two digits) inherit the rate of the 8-digit subheading above them.

Example: base duty and fees on $10000

For HTS 8433.11.00 at the general rate of Free, shipped by ocean, before any Chapter 99 tariffs:

Base duty (Free)	$0.00
Merchandise Processing Fee (0.3464%, min $34.58)	$34.64
Harbor Maintenance Fee (0.125%)	$12.50
Duty and fees	$47.14

Origin-specific tariffs can multiply this. Run this example from China or from Mexico to see every line.

Frequently asked questions

What is the duty rate for HTS 8433?

Heading 8433 has 12 rate lines. The general (MFN) duty rates are Free (12 lines). Products of free trade agreement partners may enter at the special rate, and Column 2 rates apply to countries without normal trade relations. Chapter 99 tariffs can be added on top: calculate the full amount.

Do Section 301, 232 or 201 tariffs apply to HTS 8433?

It depends on the 8- or 10-digit subheading, the country of origin, the entry date and, for Section 232, the metal content. These additional duties are listed in Chapter 99 of the HTS. The free duty calculator checks each program for a given code, origin and date and shows which apply and why.

What fees are added to an import under HTS 8433?

Formal entries pay the Merchandise Processing Fee of 0.3464% of value (minimum $34.58, maximum $670.86 in FY2027). Ocean shipments also pay the Harbor Maintenance Fee of 0.125% of value. See the import duty calculator for how they combine.