What is the sales tax rate in Boulder County, CO?

The average sales tax rate in Boulder County (CO) is 6.53%, with jurisdictions ranging between 5.18% and 9.44%.

Boulder County • Colorado (CO)

23 Kode Pos (ZIP)

Boulder County, CO Sales Tax Rates 2026

2026 sales tax rate guide for Boulder County, CO. Average combined tax rate is 6.53% with local jurisdictions ranging up to 9.44%.

Tarif Rata-rata Gabungan

6.53%

Estimasi Rentang Pajak: 5.18% - 9.44%

⚡ Direct Tax Answer & Key Takeaway

As of 2026, the local county sales tax rate in Boulder County (Colorado) is 1.19%. Combined sales tax rates across cities in this county range from 5.18% to 9.44% (averaging 6.53%).

Pajak County

1.19%

Tarif Rata-rata Gabungan

6.53%

Tarif Lokal Maksimum

9.44%

Kota Terindeks

Cities & Towns in Boulder County

Kota	Tarif Pajak Gabungan	Action
Boulder	9.04%	Lihat Tarif Pajak →
Longmont	8.71%	Lihat Tarif Pajak →
Superior	8.96%	Lihat Tarif Pajak →
Niwot	5.18%	Lihat Tarif Pajak →
Nederland	9.44%	Lihat Tarif Pajak →
Allenspark	5.18%	Lihat Tarif Pajak →
Pine Brook Hill	5.18%	Lihat Tarif Pajak →
Eldorado Springs	5.18%	Lihat Tarif Pajak →
Gold Hill	5.18%	Lihat Tarif Pajak →
Bonanza Mountain Estates	5.18%	Lihat Tarif Pajak →
Hidden Lake	5.18%	Lihat Tarif Pajak →
Valmont	5.18%	Lihat Tarif Pajak →
Leyner	5.18%	Lihat Tarif Pajak →

📋 State Tax Rules & Compliance Guide

Sourcing Rule: Destination-based

Groceries & Food: Exempt (0% Tax)

Clothing & Apparel: Taxable at standard rate

SaaS & Digital Goods: Non-Taxable

Economic Nexus Threshold: $100,000 in sales or 200 separate transactions

Official Tax Authority: Colorado Department of Revenue ↗

Kalkulator Interaktif Sales Tax

Hitung pajak penjualan yang tepat dan total harga pembelian secara instan.

Tarif Khusus Alamat Tarif terkini untuk tahun 2026

Jumlah Pembelian ($)

Total Harga Pembelian Reverse Calculation

Kode Pos (ZIP)

Pajak Negara Bagian:

Tarif Pajak Gabungan:

Pajak Negara Bagian ()

Pajak County ()

Pajak Kota ()

Distrik Khusus ()

Total Harga Pembelian

ZIP Codes in Boulder County

80025 5.18% 80026 5.18% 80027 8.96% 80301 5.18% 80302 5.18% 80303 5.18% 80304 5.18% 80305 9.04% 80306 5.18% 80307 9.04% 80308 9.44% 80309 9.04% 80310 9.04% 80314 9.04% 80455 5.18% 80466 5.18% 80481 5.18% 80501 8.71% 80502 5.18% 80503 5.18% 80510 5.18% 80540 5.18% 80544 5.18%

❓ Frequently Asked Questions

Key questions and answers regarding sales tax rates, exemptions, and compliance.

The county tax rate for Boulder County is 1.19%. When combined with Colorado state taxes and local municipal/district taxes, the overall sales tax rate varies between 5.18% and 9.44%.

In Colorado, grocery items are currently Exempt (0% Tax). SaaS and digital automated goods are Non-Taxable.